From afaa1d754d81d1b7a374ad8318bde23b4078e539 Mon Sep 17 00:00:00 2001
From: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
Date: Sat, 14 Dec 2024 01:01:43 +0000
Subject: [PATCH] feat: added SqlCondition in AlertPolicy feat: added
 PrometheusQueryLanguageCondition.disable_metric_validation feat: deprecated
 QueryTimeSeries (MQL query endpoint) feat: added TimeSeries.description for
 input only docs: TimeSeries.unit allows limited updating by CreateTimeSeries
 docs: ServiceLevelObjective.goal must be <= 0.9999 docs:
 ServiceAgentAuthentication supports generating an OAuth token

For more information about the status of MQL, see the [MQL deprecation notice](https://cloud.google.com/stackdriver/docs/deprecations/mql).

PiperOrigin-RevId: 706010293

Source-Link: https://github.com/googleapis/googleapis/commit/f4eff5440fd07389f820d22d2a55690c6390dc6d

Source-Link: https://github.com/googleapis/googleapis-gen/commit/adad43ebe0c959917a5d93348c22b95db62e65a1
Copy-Tag: eyJwIjoiTW9uaXRvcmluZy8uT3dsQm90LnlhbWwiLCJoIjoiYWRhZDQzZWJlMGM5NTk5MTdhNWQ5MzM0OGMyMmI5NWRiNjJlNjVhMSJ9
---
 .../Google/Monitoring/V3/Alert.php            |  Bin 0 -> 7280 bytes
 .../Google/Monitoring/V3/AlertService.php     |   64 +
 .../Google/Monitoring/V3/Common.php           |  Bin 0 -> 2539 bytes
 .../Google/Monitoring/V3/DroppedLabels.php    |   33 +
 .../Google/Monitoring/V3/Group.php            |   37 +
 .../Google/Monitoring/V3/GroupService.php     |  Bin 0 -> 3723 bytes
 .../Google/Monitoring/V3/Metric.php           |  Bin 0 -> 2669 bytes
 .../Google/Monitoring/V3/MetricService.php    |  Bin 0 -> 7141 bytes
 .../Google/Monitoring/V3/MutationRecord.php   |   32 +
 .../Google/Monitoring/V3/Notification.php     |  Bin 0 -> 2943 bytes
 .../Monitoring/V3/NotificationService.php     |   97 ++
 .../Google/Monitoring/V3/QueryService.php     |   32 +
 .../Google/Monitoring/V3/Service.php          |  Bin 0 -> 5715 bytes
 .../Google/Monitoring/V3/ServiceService.php   |   95 ++
 .../Google/Monitoring/V3/Snooze.php           |   39 +
 .../Google/Monitoring/V3/SnoozeService.php    |   56 +
 .../Google/Monitoring/V3/SpanContext.php      |   29 +
 .../Google/Monitoring/V3/Uptime.php           |  Bin 0 -> 6133 bytes
 .../Google/Monitoring/V3/UptimeService.php    |   72 +
 .../Cloud/Monitoring/V3/Aggregation.php       |  389 ++++++
 .../Monitoring/V3/Aggregation/Aligner.php     |  269 ++++
 .../Monitoring/V3/Aggregation/Reducer.php     |  191 +++
 .../Cloud/Monitoring/V3/AlertPolicy.php       |  805 +++++++++++
 .../V3/AlertPolicy/AlertStrategy.php          |  217 +++
 .../NotificationChannelStrategy.php           |  139 ++
 .../AlertStrategy/NotificationPrompt.php      |   64 +
 .../AlertStrategy/NotificationRateLimit.php   |   81 ++
 .../Monitoring/V3/AlertPolicy/Condition.php   |  406 ++++++
 .../Condition/EvaluationMissingData.php       |   76 ++
 .../V3/AlertPolicy/Condition/LogMatch.php     |  151 +++
 .../AlertPolicy/Condition/MetricAbsence.php   |  304 +++++
 .../AlertPolicy/Condition/MetricThreshold.php |  635 +++++++++
 .../MetricThreshold/ForecastOptions.php       |  101 ++
 .../MonitoringQueryLanguageCondition.php      |  257 ++++
 .../PrometheusQueryLanguageCondition.php      |  491 +++++++
 .../V3/AlertPolicy/Condition/SqlCondition.php |  303 +++++
 .../Condition/SqlCondition/BooleanTest.php    |   75 ++
 .../Condition/SqlCondition/Daily.php          |  126 ++
 .../Condition/SqlCondition/Hourly.php         |  130 ++
 .../Condition/SqlCondition/Minutes.php        |   78 ++
 .../Condition/SqlCondition/RowCountTest.php   |  109 ++
 .../V3/AlertPolicy/Condition/Trigger.php      |  118 ++
 .../V3/AlertPolicy/ConditionCombinerType.php  |   81 ++
 .../V3/AlertPolicy/Documentation.php          |  245 ++++
 .../V3/AlertPolicy/Documentation/Link.php     |  124 ++
 .../Monitoring/V3/AlertPolicy/Severity.php    |   75 ++
 .../Google/Cloud/Monitoring/V3/BasicSli.php   |  269 ++++
 .../V3/BasicSli/AvailabilityCriteria.php      |   36 +
 .../V3/BasicSli/LatencyCriteria.php           |   84 ++
 .../Cloud/Monitoring/V3/ComparisonType.php    |   90 ++
 .../V3/CreateAlertPolicyRequest.php           |  188 +++
 .../Monitoring/V3/CreateGroupRequest.php      |  181 +++
 .../V3/CreateMetricDescriptorRequest.php      |  151 +++
 .../V3/CreateNotificationChannelRequest.php   |  163 +++
 .../V3/CreateServiceLevelObjectiveRequest.php |  185 +++
 .../Monitoring/V3/CreateServiceRequest.php    |  180 +++
 .../Monitoring/V3/CreateSnoozeRequest.php     |  149 +++
 .../Monitoring/V3/CreateTimeSeriesError.php   |  135 ++
 .../Monitoring/V3/CreateTimeSeriesRequest.php |  159 +++
 .../Monitoring/V3/CreateTimeSeriesSummary.php |  135 ++
 .../V3/CreateTimeSeriesSummary/Error.php      |  114 ++
 .../V3/CreateUptimeCheckConfigRequest.php     |  142 ++
 .../V3/DeleteAlertPolicyRequest.php           |   93 ++
 .../Monitoring/V3/DeleteGroupRequest.php      |  130 ++
 .../V3/DeleteMetricDescriptorRequest.php      |  103 ++
 .../V3/DeleteNotificationChannelRequest.php   |  138 ++
 .../V3/DeleteServiceLevelObjectiveRequest.php |   92 ++
 .../Monitoring/V3/DeleteServiceRequest.php    |   87 ++
 .../V3/DeleteUptimeCheckConfigRequest.php     |   87 ++
 .../Cloud/Monitoring/V3/DistributionCut.php   |  127 ++
 .../Cloud/Monitoring/V3/DroppedLabels.php     |   80 ++
 .../Monitoring/V3/GetAlertPolicyRequest.php   |   87 ++
 .../Cloud/Monitoring/V3/GetGroupRequest.php   |   87 ++
 .../V3/GetMetricDescriptorRequest.php         |  103 ++
 .../GetMonitoredResourceDescriptorRequest.php |   98 ++
 ...etNotificationChannelDescriptorRequest.php |   87 ++
 .../V3/GetNotificationChannelRequest.php      |   87 ++
 ...ficationChannelVerificationCodeRequest.php |  167 +++
 ...icationChannelVerificationCodeResponse.php |  131 ++
 .../V3/GetServiceLevelObjectiveRequest.php    |  138 ++
 .../Cloud/Monitoring/V3/GetServiceRequest.php |   87 ++
 .../Cloud/Monitoring/V3/GetSnoozeRequest.php  |   88 ++
 .../V3/GetUptimeCheckConfigRequest.php        |   87 ++
 .../src/Google/Cloud/Monitoring/V3/Group.php  |  257 ++++
 .../Cloud/Monitoring/V3/GroupResourceType.php |   66 +
 .../Cloud/Monitoring/V3/InternalChecker.php   |  271 ++++
 .../Monitoring/V3/InternalChecker/State.php   |   74 ++
 .../Google/Cloud/Monitoring/V3/LabelValue.php |  141 ++
 .../V3/ListAlertPoliciesRequest.php           |  298 +++++
 .../V3/ListAlertPoliciesResponse.php          |  147 ++
 .../Monitoring/V3/ListGroupMembersRequest.php |  277 ++++
 .../V3/ListGroupMembersResponse.php           |  143 ++
 .../Cloud/Monitoring/V3/ListGroupsRequest.php |  316 +++++
 .../Monitoring/V3/ListGroupsResponse.php      |  109 ++
 .../V3/ListMetricDescriptorsRequest.php       |  242 ++++
 .../V3/ListMetricDescriptorsResponse.php      |  113 ++
 ...istMonitoredResourceDescriptorsRequest.php |  222 ++++
 ...stMonitoredResourceDescriptorsResponse.php |  113 ++
 ...tNotificationChannelDescriptorsRequest.php |  206 +++
 ...NotificationChannelDescriptorsResponse.php |  117 ++
 .../V3/ListNotificationChannelsRequest.php    |  307 +++++
 .../V3/ListNotificationChannelsResponse.php   |  151 +++
 .../V3/ListServiceLevelObjectivesRequest.php  |  257 ++++
 .../V3/ListServiceLevelObjectivesResponse.php |  109 ++
 .../Monitoring/V3/ListServicesRequest.php     |  275 ++++
 .../Monitoring/V3/ListServicesResponse.php    |  109 ++
 .../Monitoring/V3/ListSnoozesRequest.php      |  252 ++++
 .../Monitoring/V3/ListSnoozesResponse.php     |  106 ++
 .../Monitoring/V3/ListTimeSeriesRequest.php   |  501 +++++++
 .../ListTimeSeriesRequest/TimeSeriesView.php  |   59 +
 .../Monitoring/V3/ListTimeSeriesResponse.php  |  201 +++
 .../V3/ListUptimeCheckConfigsRequest.php      |  230 ++++
 .../V3/ListUptimeCheckConfigsResponse.php     |  155 +++
 .../V3/ListUptimeCheckIpsRequest.php          |  129 ++
 .../V3/ListUptimeCheckIpsResponse.php         |  125 ++
 .../Cloud/Monitoring/V3/MutationRecord.php    |  111 ++
 .../Monitoring/V3/NotificationChannel.php     |  594 +++++++++
 .../VerificationStatus.php                    |   76 ++
 .../V3/NotificationChannelDescriptor.php      |  326 +++++
 .../src/Google/Cloud/Monitoring/V3/Point.php  |  153 +++
 .../Google/Cloud/Monitoring/V3/QueryError.php |  115 ++
 .../Cloud/Monitoring/V3/QueryErrorList.php    |  105 ++
 .../Monitoring/V3/QueryTimeSeriesRequest.php  |  200 +++
 .../Monitoring/V3/QueryTimeSeriesResponse.php |  198 +++
 .../src/Google/Cloud/Monitoring/V3/Range.php  |  101 ++
 .../Cloud/Monitoring/V3/RequestBasedSli.php   |  121 ++
 ...ficationChannelVerificationCodeRequest.php |   81 ++
 .../Google/Cloud/Monitoring/V3/Service.php    |  608 +++++++++
 .../Cloud/Monitoring/V3/Service/AppEngine.php |   78 ++
 .../Monitoring/V3/Service/BasicService.php    |  130 ++
 .../Monitoring/V3/Service/CloudEndpoints.php  |   78 ++
 .../Cloud/Monitoring/V3/Service/CloudRun.php  |  120 ++
 .../Monitoring/V3/Service/ClusterIstio.php    |  198 +++
 .../Cloud/Monitoring/V3/Service/Custom.php    |   38 +
 .../Monitoring/V3/Service/GkeNamespace.php    |  182 +++
 .../Monitoring/V3/Service/GkeService.php      |  219 +++
 .../Monitoring/V3/Service/GkeWorkload.php     |  250 ++++
 .../V3/Service/IstioCanonicalService.php      |  171 +++
 .../Cloud/Monitoring/V3/Service/MeshIstio.php |  151 +++
 .../Cloud/Monitoring/V3/Service/Telemetry.php |   74 ++
 .../Monitoring/V3/ServiceLevelIndicator.php   |  153 +++
 .../Monitoring/V3/ServiceLevelObjective.php   |  338 +++++
 .../V3/ServiceLevelObjective/View.php         |   71 +
 .../Cloud/Monitoring/V3/ServiceTier.php       |   74 ++
 .../src/Google/Cloud/Monitoring/V3/Snooze.php |  224 ++++
 .../Cloud/Monitoring/V3/Snooze/Criteria.php   |   88 ++
 .../Cloud/Monitoring/V3/SpanContext.php       |   91 ++
 .../Monitoring/V3/SyntheticMonitorTarget.php  |   75 ++
 .../CloudFunctionV2Target.php                 |  134 ++
 .../Cloud/Monitoring/V3/TextLocator.php       |  303 +++++
 .../Monitoring/V3/TextLocator/Position.php    |  108 ++
 .../Cloud/Monitoring/V3/TimeInterval.php      |  165 +++
 .../Google/Cloud/Monitoring/V3/TimeSeries.php |  454 +++++++
 .../Cloud/Monitoring/V3/TimeSeriesData.php    |  114 ++
 .../V3/TimeSeriesData/PointData.php           |  116 ++
 .../Monitoring/V3/TimeSeriesDescriptor.php    |  101 ++
 .../TimeSeriesDescriptor/ValueDescriptor.php  |  184 +++
 .../Cloud/Monitoring/V3/TimeSeriesRatio.php   |  180 +++
 .../Google/Cloud/Monitoring/V3/TypedValue.php |  213 +++
 .../V3/UpdateAlertPolicyRequest.php           |  239 ++++
 .../Monitoring/V3/UpdateGroupRequest.php      |  134 ++
 .../V3/UpdateNotificationChannelRequest.php   |  151 +++
 .../V3/UpdateServiceLevelObjectiveRequest.php |  139 ++
 .../Monitoring/V3/UpdateServiceRequest.php    |  139 ++
 .../Monitoring/V3/UpdateSnoozeRequest.php     |  227 ++++
 .../V3/UpdateUptimeCheckConfigRequest.php     |  192 +++
 .../Cloud/Monitoring/V3/UptimeCheckConfig.php |  748 +++++++++++
 .../V3/UptimeCheckConfig/CheckerType.php      |   69 +
 .../V3/UptimeCheckConfig/ContentMatcher.php   |  158 +++
 .../ContentMatcher/ContentMatcherOption.php   |  107 ++
 .../ContentMatcher/JsonPathMatcher.php        |  114 ++
 .../JsonPathMatcher/JsonPathMatcherOption.php |   68 +
 .../V3/UptimeCheckConfig/HttpCheck.php        |  730 ++++++++++
 .../HttpCheck/BasicAuthentication.php         |  107 ++
 .../HttpCheck/ContentType.php                 |   67 +
 .../HttpCheck/RequestMethod.php               |   64 +
 .../HttpCheck/ResponseStatusCode.php          |  112 ++
 .../ResponseStatusCode/StatusClass.php        |   92 ++
 .../HttpCheck/ServiceAgentAuthentication.php  |   75 ++
 .../ServiceAgentAuthenticationType.php        |   57 +
 .../V3/UptimeCheckConfig/PingConfig.php       |   72 +
 .../V3/UptimeCheckConfig/ResourceGroup.php    |  113 ++
 .../V3/UptimeCheckConfig/TcpCheck.php         |  122 ++
 .../Cloud/Monitoring/V3/UptimeCheckIp.php     |  160 +++
 .../Cloud/Monitoring/V3/UptimeCheckRegion.php |  102 ++
 .../V3/VerifyNotificationChannelRequest.php   |  147 ++
 .../Cloud/Monitoring/V3/WindowsBasedSli.php   |  236 ++++
 .../V3/WindowsBasedSli/MetricRange.php        |  125 ++
 .../WindowsBasedSli/PerformanceThreshold.php  |  146 ++
 .../create_alert_policy.php                   |   88 ++
 .../delete_alert_policy.php                   |   77 ++
 .../get_alert_policy.php                      |   73 +
 .../list_alert_policies.php                   |   85 ++
 .../update_alert_policy.php                   |   66 +
 .../V3/GroupServiceClient/create_group.php    |   76 ++
 .../V3/GroupServiceClient/delete_group.php    |   71 +
 .../V3/GroupServiceClient/get_group.php       |   73 +
 .../GroupServiceClient/list_group_members.php |   78 ++
 .../V3/GroupServiceClient/list_groups.php     |   79 ++
 .../V3/GroupServiceClient/update_group.php    |   60 +
 .../create_metric_descriptor.php              |   81 ++
 .../create_service_time_series.php            |   84 ++
 .../create_time_series.php                    |   82 ++
 .../delete_metric_descriptor.php              |   77 ++
 .../get_metric_descriptor.php                 |   77 ++
 .../get_monitored_resource_descriptor.php     |   79 ++
 .../list_metric_descriptors.php               |   79 ++
 .../list_monitored_resource_descriptors.php   |   79 ++
 .../MetricServiceClient/list_time_series.php  |   99 ++
 .../create_notification_channel.php           |   87 ++
 .../delete_notification_channel.php           |   79 ++
 .../get_notification_channel.php              |   80 ++
 .../get_notification_channel_descriptor.php   |   77 ++
 ...notification_channel_verification_code.php |   96 ++
 .../list_notification_channel_descriptors.php |   86 ++
 .../list_notification_channels.php            |   88 ++
 ...notification_channel_verification_code.php |   73 +
 .../update_notification_channel.php           |   65 +
 .../verify_notification_channel.php           |   85 ++
 .../QueryServiceClient/query_time_series.php  |   87 ++
 .../create_service.php                        |   76 ++
 .../create_service_level_objective.php        |   75 ++
 .../delete_service.php                        |   71 +
 .../delete_service_level_objective.php        |   76 ++
 .../get_service.php                           |   73 +
 .../get_service_level_objective.php           |   78 ++
 .../list_service_level_objectives.php         |   80 ++
 .../list_services.php                         |   80 ++
 .../update_service.php                        |   59 +
 .../update_service_level_objective.php        |   59 +
 .../V3/SnoozeServiceClient/create_snooze.php  |   89 ++
 .../V3/SnoozeServiceClient/get_snooze.php     |   73 +
 .../V3/SnoozeServiceClient/list_snoozes.php   |   81 ++
 .../V3/SnoozeServiceClient/update_snooze.php  |   83 ++
 .../create_uptime_check_config.php            |   76 ++
 .../delete_uptime_check_config.php            |   76 ++
 .../get_uptime_check_config.php               |   76 ++
 .../list_uptime_check_configs.php             |   80 ++
 .../list_uptime_check_ips.php                 |   62 +
 .../update_uptime_check_config.php            |   62 +
 .../v3/src/V3/AlertPolicyServiceClient.php    |   34 +
 .../V3/Client/AlertPolicyServiceClient.php    |  511 +++++++
 .../v3/src/V3/Client/GroupServiceClient.php   |  448 +++++++
 .../v3/src/V3/Client/MetricServiceClient.php  |  679 ++++++++++
 .../NotificationChannelServiceClient.php      |  683 ++++++++++
 .../v3/src/V3/Client/QueryServiceClient.php   |  202 +++
 .../Client/ServiceMonitoringServiceClient.php |  639 +++++++++
 .../v3/src/V3/Client/SnoozeServiceClient.php  |  438 ++++++
 .../V3/Client/UptimeCheckServiceClient.php    |  475 +++++++
 .../Gapic/AlertPolicyServiceGapicClient.php   |  806 +++++++++++
 .../src/V3/Gapic/GroupServiceGapicClient.php  |  752 +++++++++++
 .../src/V3/Gapic/MetricServiceGapicClient.php | 1178 +++++++++++++++++
 .../NotificationChannelServiceGapicClient.php | 1075 +++++++++++++++
 .../src/V3/Gapic/QueryServiceGapicClient.php  |  261 ++++
 .../ServiceMonitoringServiceGapicClient.php   | 1044 +++++++++++++++
 .../src/V3/Gapic/SnoozeServiceGapicClient.php |  680 ++++++++++
 .../Gapic/UptimeCheckServiceGapicClient.php   |  724 ++++++++++
 .../v3/src/V3/GroupServiceClient.php          |   34 +
 .../v3/src/V3/MetricServiceClient.php         |   34 +
 .../V3/NotificationChannelServiceClient.php   |   34 +
 .../v3/src/V3/QueryServiceClient.php          |   34 +
 .../src/V3/ServiceMonitoringServiceClient.php |   34 +
 .../v3/src/V3/SnoozeServiceClient.php         |   34 +
 .../v3/src/V3/UptimeCheckServiceClient.php    |   34 +
 .../Monitoring/v3/src/V3/gapic_metadata.json  |  336 +++++
 .../alert_policy_service_client_config.json   |   69 +
 ...alert_policy_service_descriptor_config.php |  107 ++
 ...lert_policy_service_rest_client_config.php |   87 ++
 .../group_service_client_config.json          |   86 ++
 .../group_service_descriptor_config.php       |  123 ++
 .../group_service_rest_client_config.php      |   98 ++
 .../metric_service_client_config.json         |  101 ++
 .../metric_service_descriptor_config.php      |  174 +++
 .../metric_service_rest_client_config.php     |  156 +++
 ...ication_channel_service_client_config.json |   94 ++
 ...tion_channel_service_descriptor_config.php |  175 +++
 ...ion_channel_service_rest_client_config.php |  145 ++
 .../query_service_client_config.json          |   27 +
 .../query_service_descriptor_config.php       |   48 +
 .../query_service_rest_client_config.php      |   41 +
 ...vice_monitoring_service_client_config.json |   94 ++
 ...e_monitoring_service_descriptor_config.php |  176 +++
 ..._monitoring_service_rest_client_config.php |  145 ++
 .../snooze_service_client_config.json         |   64 +
 .../snooze_service_descriptor_config.php      |   94 ++
 .../snooze_service_rest_client_config.php     |   79 ++
 .../uptime_check_service_client_config.json   |   74 ++
 ...uptime_check_service_descriptor_config.php |  116 ++
 ...ptime_check_service_rest_client_config.php |   91 ++
 .../Unit/V3/AlertPolicyServiceClientTest.php  |  380 ++++++
 .../Client/AlertPolicyServiceClientTest.php   |  442 +++++++
 .../Unit/V3/Client/GroupServiceClientTest.php |  541 ++++++++
 .../V3/Client/MetricServiceClientTest.php     |  769 +++++++++++
 .../NotificationChannelServiceClientTest.php  |  809 +++++++++++
 .../Unit/V3/Client/QueryServiceClientTest.php |  182 +++
 .../ServiceMonitoringServiceClientTest.php    |  790 +++++++++++
 .../V3/Client/SnoozeServiceClientTest.php     |  416 ++++++
 .../Client/UptimeCheckServiceClientTest.php   |  517 ++++++++
 .../tests/Unit/V3/GroupServiceClientTest.php  |  468 +++++++
 .../tests/Unit/V3/MetricServiceClientTest.php |  672 ++++++++++
 .../NotificationChannelServiceClientTest.php  |  716 ++++++++++
 .../tests/Unit/V3/QueryServiceClientTest.php  |  134 ++
 .../V3/ServiceMonitoringServiceClientTest.php |  701 ++++++++++
 .../tests/Unit/V3/SnoozeServiceClientTest.php |  351 +++++
 .../Unit/V3/UptimeCheckServiceClientTest.php  |  450 +++++++
 305 files changed, 55881 insertions(+)
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/Alert.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/AlertService.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/Common.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/DroppedLabels.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/Group.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/GroupService.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/Metric.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/MetricService.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/MutationRecord.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/Notification.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/NotificationService.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/QueryService.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/Service.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/ServiceService.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/Snooze.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/SnoozeService.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/SpanContext.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/Uptime.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/UptimeService.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Aggregation.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Aggregation/Aligner.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Aggregation/Reducer.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/AlertStrategy.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/AlertStrategy/NotificationChannelStrategy.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/AlertStrategy/NotificationPrompt.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/AlertStrategy/NotificationRateLimit.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/EvaluationMissingData.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/LogMatch.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/MetricAbsence.php
 create mode 100644 owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/MetricThreshold.php
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diff --git a/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/AlertService.php b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/AlertService.php
new file mode 100644
index 000000000000..d82b3a396ced
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/AlertService.php
@@ -0,0 +1,64 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert_service.proto
+
+namespace GPBMetadata\Google\Monitoring\V3;
+
+class AlertService
+{
+    public static $is_initialized = false;
+
+    public static function initOnce() {
+        $pool = \Google\Protobuf\Internal\DescriptorPool::getGeneratedPool();
+
+        if (static::$is_initialized == true) {
+          return;
+        }
+        \GPBMetadata\Google\Api\Annotations::initOnce();
+        \GPBMetadata\Google\Api\Client::initOnce();
+        \GPBMetadata\Google\Api\FieldBehavior::initOnce();
+        \GPBMetadata\Google\Api\Resource::initOnce();
+        \GPBMetadata\Google\Monitoring\V3\Alert::initOnce();
+        \GPBMetadata\Google\Protobuf\GPBEmpty::initOnce();
+        \GPBMetadata\Google\Protobuf\FieldMask::initOnce();
+        $pool->internalAddGeneratedFile(
+            '
+ƒ
+(google/monitoring/v3/alert_service.protogoogle.monitoring.v3google/api/client.protogoogle/api/field_behavior.protogoogle/api/resource.proto google/monitoring/v3/alert.protogoogle/protobuf/empty.proto google/protobuf/field_mask.proto"•

+CreateAlertPolicyRequest;
+name 
(	B-àAúA\'%monitoring.googleapis.com/AlertPolicy<
+alert_policy 
(2!.google.monitoring.v3.AlertPolicyBàA"T
+GetAlertPolicyRequest;
+name 
(	B-àAúA\'
+%monitoring.googleapis.com/AlertPolicy"´

+ListAlertPoliciesRequest;
+name 
(	B-àAúA\'%monitoring.googleapis.com/AlertPolicy
+filter 
(	BàA

+order_by 
(	BàA

+	page_size 
(BàA

+
+page_token 
(	BàA
"ƒ

+ListAlertPoliciesResponse9
+alert_policies (2!.google.monitoring.v3.AlertPolicy
+next_page_token 
(	
+
+total_size 
("Ž

+UpdateAlertPolicyRequest4
+update_mask 
(2.google.protobuf.FieldMaskBàA
<
+alert_policy 
(2!.google.monitoring.v3.AlertPolicyBàA"W
+DeleteAlertPolicyRequest;
+name 
(	B-àAúA\'
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+AlertPolicyService¨

+ListAlertPolicies..google.monitoring.v3.ListAlertPoliciesRequest/.google.monitoring.v3.ListAlertPoliciesResponse"2ÚAname‚Óä“%#/v3/{name=projects/*}/alertPolicies–

+GetAlertPolicy+.google.monitoring.v3.GetAlertPolicyRequest!.google.monitoring.v3.AlertPolicy"4ÚAname‚Óä“\'%/v3/{name=projects/*/alertPolicies/*}µ

+CreateAlertPolicy..google.monitoring.v3.CreateAlertPolicyRequest!.google.monitoring.v3.AlertPolicy"MÚAname,alert_policy‚Óä“3"#/v3/{name=projects/*}/alertPolicies:alert_policy‘

+DeleteAlertPolicy..google.monitoring.v3.DeleteAlertPolicyRequest.google.protobuf.Empty"4ÚAname‚Óä“\'*%/v3/{name=projects/*/alertPolicies/*}Ë

+UpdateAlertPolicy..google.monitoring.v3.UpdateAlertPolicyRequest!.google.monitoring.v3.AlertPolicy"cÚAupdate_mask,alert_policy‚Óä“B22/v3/{alert_policy.name=projects/*/alertPolicies/*}:alert_policy©
ÊAmonitoring.googleapis.comÒA‰
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+        , true);
+
+        static::$is_initialized = true;
+    }
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/Common.php b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/Common.php
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literal 0
HcmV?d00001

diff --git a/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/DroppedLabels.php b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/DroppedLabels.php
new file mode 100644
index 000000000000..f7e45d86002a
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/DroppedLabels.php
@@ -0,0 +1,33 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/dropped_labels.proto
+
+namespace GPBMetadata\Google\Monitoring\V3;
+
+class DroppedLabels
+{
+    public static $is_initialized = false;
+
+    public static function initOnce() {
+        $pool = \Google\Protobuf\Internal\DescriptorPool::getGeneratedPool();
+
+        if (static::$is_initialized == true) {
+          return;
+        }
+        $pool->internalAddGeneratedFile(
+            '
+—
+)google/monitoring/v3/dropped_labels.protogoogle.monitoring.v3"|
+
DroppedLabels=
+label
 (2..google.monitoring.v3.DroppedLabels.LabelEntry,
+
+LabelEntry
+key
 
(	
+value 
(	:8
BÍ

+com.google.monitoring.v3BDroppedLabelsProtoP
ZAcloud.google.com/go/monitoring/apiv3/v2/monitoringpb;monitoringpbªGoogle.Cloud.Monitoring.V3ÊGoogle\\Cloud\\Monitoring\\V3êGoogle::Cloud::Monitoring::V3bproto3'
+        , true);
+
+        static::$is_initialized = true;
+    }
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/Group.php b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/Group.php
new file mode 100644
index 000000000000..999b703bd1a3
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/Group.php
@@ -0,0 +1,37 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/group.proto
+
+namespace GPBMetadata\Google\Monitoring\V3;
+
+class Group
+{
+    public static $is_initialized = false;
+
+    public static function initOnce() {
+        $pool = \Google\Protobuf\Internal\DescriptorPool::getGeneratedPool();
+
+        if (static::$is_initialized == true) {
+          return;
+        }
+        \GPBMetadata\Google\Api\Resource::initOnce();
+        $pool->internalAddGeneratedFile(
+            '
+‹
+ google/monitoring/v3/group.protogoogle.monitoring.v3"€
+Group
+name
 
(	
+display_name 
(	
+parent_name 
(	
+filter 
(	
+
+is_cluster 
(:™
êA•

+monitoring.googleapis.com/Group!projects/{project}/groups/{group}+organizations/{organization}/groups/{group}folders/{folder}/groups/{group}
*BÅ

+com.google.monitoring.v3B
+GroupProtoP
ZAcloud.google.com/go/monitoring/apiv3/v2/monitoringpb;monitoringpbªGoogle.Cloud.Monitoring.V3ÊGoogle\\Cloud\\Monitoring\\V3êGoogle::Cloud::Monitoring::V3bproto3'
+        , true);
+
+        static::$is_initialized = true;
+    }
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/GroupService.php b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/GroupService.php
new file mode 100644
index 0000000000000000000000000000000000000000..a03455b22eaefbdb97cd6bc07b10a02c337b4ce1
GIT binary patch
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literal 0
HcmV?d00001

diff --git a/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/Metric.php b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/Metric.php
new file mode 100644
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literal 0
HcmV?d00001

diff --git a/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/MetricService.php b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/MetricService.php
new file mode 100644
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GIT binary patch
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HcmV?d00001

diff --git a/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/MutationRecord.php b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/MutationRecord.php
new file mode 100644
index 000000000000..cc7e45493f8f
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/MutationRecord.php
@@ -0,0 +1,32 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/mutation_record.proto
+
+namespace GPBMetadata\Google\Monitoring\V3;
+
+class MutationRecord
+{
+    public static $is_initialized = false;
+
+    public static function initOnce() {
+        $pool = \Google\Protobuf\Internal\DescriptorPool::getGeneratedPool();
+
+        if (static::$is_initialized == true) {
+          return;
+        }
+        \GPBMetadata\Google\Protobuf\Timestamp::initOnce();
+        $pool->internalAddGeneratedFile(
+            '
+ò
+*google/monitoring/v3/mutation_record.protogoogle.monitoring.v3"U
+MutationRecord/
+mutate_time
 
(2.google.protobuf.Timestamp
+
+mutated_by 
(	BÎ

+com.google.monitoring.v3BMutationRecordProtoP
ZAcloud.google.com/go/monitoring/apiv3/v2/monitoringpb;monitoringpbªGoogle.Cloud.Monitoring.V3ÊGoogle\\Cloud\\Monitoring\\V3êGoogle::Cloud::Monitoring::V3bproto3'
+        , true);
+
+        static::$is_initialized = true;
+    }
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/Notification.php b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/Notification.php
new file mode 100644
index 0000000000000000000000000000000000000000..247b22413b13dd8762fee1d3312bc23d6c75c015
GIT binary patch
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diff --git a/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/NotificationService.php b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/NotificationService.php
new file mode 100644
index 000000000000..b7607591fe99
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/NotificationService.php
@@ -0,0 +1,97 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/notification_service.proto
+
+namespace GPBMetadata\Google\Monitoring\V3;
+
+class NotificationService
+{
+    public static $is_initialized = false;
+
+    public static function initOnce() {
+        $pool = \Google\Protobuf\Internal\DescriptorPool::getGeneratedPool();
+
+        if (static::$is_initialized == true) {
+          return;
+        }
+        \GPBMetadata\Google\Api\Annotations::initOnce();
+        \GPBMetadata\Google\Api\Client::initOnce();
+        \GPBMetadata\Google\Api\FieldBehavior::initOnce();
+        \GPBMetadata\Google\Api\Resource::initOnce();
+        \GPBMetadata\Google\Monitoring\V3\Notification::initOnce();
+        \GPBMetadata\Google\Protobuf\GPBEmpty::initOnce();
+        \GPBMetadata\Google\Protobuf\FieldMask::initOnce();
+        \GPBMetadata\Google\Protobuf\Timestamp::initOnce();
+        $pool->internalAddGeneratedFile(
+            '
+Õ%
+/google/monitoring/v3/notification_service.protogoogle.monitoring.v3google/api/client.protogoogle/api/field_behavior.protogoogle/api/resource.proto\'google/monitoring/v3/notification.protogoogle/protobuf/empty.proto google/protobuf/field_mask.protogoogle/protobuf/timestamp.proto"¡

+)ListNotificationChannelDescriptorsRequestM
+name 
(	B?àAúA97monitoring.googleapis.com/NotificationChannelDescriptor
+	page_size 
(
+
+page_token 
(	"—

+*ListNotificationChannelDescriptorsResponseP
+channel_descriptors
 (23.google.monitoring.v3.NotificationChannelDescriptor
+next_page_token 
(	"x
+\'GetNotificationChannelDescriptorRequestM
+name 
(	B?àAúA9
+7monitoring.googleapis.com/NotificationChannelDescriptor"µ

+ CreateNotificationChannelRequestC
+name 
(	B5àAúA/-monitoring.googleapis.com/NotificationChannelL
+notification_channel 
(2).google.monitoring.v3.NotificationChannelBàA"Ã

+ListNotificationChannelsRequestC
+name 
(	B5àAúA/-monitoring.googleapis.com/NotificationChannel
+filter 
(	BàA

+order_by 
(	BàA

+	page_size 
(BàA

+
+page_token 
(	BàA
"™

+ ListNotificationChannelsResponseH
+notification_channels (2).google.monitoring.v3.NotificationChannel
+next_page_token 
(	
+
+total_size 
("d
+GetNotificationChannelRequestC
+name 
(	B5àAúA/
+-monitoring.googleapis.com/NotificationChannel"¦

+ UpdateNotificationChannelRequest4
+update_mask 
(2.google.protobuf.FieldMaskBàA
L
+notification_channel 
(2).google.monitoring.v3.NotificationChannelBàA"v
+ DeleteNotificationChannelRequestC
+name 
(	B5àAúA/
+-monitoring.googleapis.com/NotificationChannel
+force 
("u
+.SendNotificationChannelVerificationCodeRequestC
+name
 
(	B5àAúA/
+-monitoring.googleapis.com/NotificationChannel"¥

+-GetNotificationChannelVerificationCodeRequestC
+name
 
(	B5àAúA/
+-monitoring.googleapis.com/NotificationChannel/
+expire_time 
(2.google.protobuf.Timestamp"o
+.GetNotificationChannelVerificationCodeResponse
+code
 
(	/
+expire_time 
(2.google.protobuf.Timestamp"z
+ VerifyNotificationChannelRequestC
+name
 
(	B5àAúA/
+-monitoring.googleapis.com/NotificationChannel
+code 
(	BàA2ê
+NotificationChannelServiceì

+"ListNotificationChannelDescriptors?.google.monitoring.v3.ListNotificationChannelDescriptorsRequest@.google.monitoring.v3.ListNotificationChannelDescriptorsResponse"CÚAname‚Óä“64/v3/{name=projects/*}/notificationChannelDescriptorsÝ

+ GetNotificationChannelDescriptor=.google.monitoring.v3.GetNotificationChannelDescriptorRequest3.google.monitoring.v3.NotificationChannelDescriptor"EÚAname‚Óä“86/v3/{name=projects/*/notificationChannelDescriptors/*}Ä

+ListNotificationChannels5.google.monitoring.v3.ListNotificationChannelsRequest6.google.monitoring.v3.ListNotificationChannelsResponse"9ÚAname‚Óä“,*/v3/{name=projects/*}/notificationChannelsµ

+GetNotificationChannel3.google.monitoring.v3.GetNotificationChannelRequest).google.monitoring.v3.NotificationChannel";ÚAname‚Óä“.,/v3/{name=projects/*/notificationChannels/*}ä

+CreateNotificationChannel6.google.monitoring.v3.CreateNotificationChannelRequest).google.monitoring.v3.NotificationChannel"dÚAname,notification_channel‚Óä“B"*/v3/{name=projects/*}/notificationChannels:notification_channelƒ
+UpdateNotificationChannel6.google.monitoring.v3.UpdateNotificationChannelRequest).google.monitoring.v3.NotificationChannel"‚
ÚA update_mask,notification_channel‚Óä“Y2A/v3/{notification_channel.name=projects/*/notificationChannels/*}:notification_channel®

+DeleteNotificationChannel6.google.monitoring.v3.DeleteNotificationChannelRequest.google.protobuf.Empty"AÚA
+name,force‚Óä“.*,/v3/{name=projects/*/notificationChannels/*}Ü

+\'SendNotificationChannelVerificationCodeD.google.monitoring.v3.SendNotificationChannelVerificationCodeRequest.google.protobuf.Empty"SÚAname‚Óä“F"A/v3/{name=projects/*/notificationChannels/*}:sendVerificationCode:
*‡
+&GetNotificationChannelVerificationCodeC.google.monitoring.v3.GetNotificationChannelVerificationCodeRequestD.google.monitoring.v3.GetNotificationChannelVerificationCodeResponse"RÚAname‚Óä“E"@/v3/{name=projects/*/notificationChannels/*}:getVerificationCode:
*Ê

+VerifyNotificationChannel6.google.monitoring.v3.VerifyNotificationChannelRequest).google.monitoring.v3.NotificationChannel"JÚA	name,code‚Óä“8"3/v3/{name=projects/*/notificationChannels/*}:verify:
*©
ÊAmonitoring.googleapis.comÒA‰
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ZAcloud.google.com/go/monitoring/apiv3/v2/monitoringpb;monitoringpbªGoogle.Cloud.Monitoring.V3ÊGoogle\\Cloud\\Monitoring\\V3êGoogle::Cloud::Monitoring::V3bproto3'
+        , true);
+
+        static::$is_initialized = true;
+    }
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/QueryService.php b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/QueryService.php
new file mode 100644
index 000000000000..27959d462165
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/QueryService.php
@@ -0,0 +1,32 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/query_service.proto
+
+namespace GPBMetadata\Google\Monitoring\V3;
+
+class QueryService
+{
+    public static $is_initialized = false;
+
+    public static function initOnce() {
+        $pool = \Google\Protobuf\Internal\DescriptorPool::getGeneratedPool();
+
+        if (static::$is_initialized == true) {
+          return;
+        }
+        \GPBMetadata\Google\Api\Annotations::initOnce();
+        \GPBMetadata\Google\Api\Client::initOnce();
+        \GPBMetadata\Google\Monitoring\V3\MetricService::initOnce();
+        $pool->internalAddGeneratedFile(
+            '
+¿
+(google/monitoring/v3/query_service.protogoogle.monitoring.v3google/api/client.proto)google/monitoring/v3/metric_service.proto2á
+QueryService¤

+QueryTimeSeries,.google.monitoring.v3.QueryTimeSeriesRequest-.google.monitoring.v3.QueryTimeSeriesResponse"4ˆ
‚Óä“+"&/v3/{name=projects/*}/timeSeries:query:
*©
ÊAmonitoring.googleapis.comÒA‰
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+com.google.monitoring.v3BQueryServiceProtoP
ZAcloud.google.com/go/monitoring/apiv3/v2/monitoringpb;monitoringpbªGoogle.Cloud.Monitoring.V3ÊGoogle\\Cloud\\Monitoring\\V3êGoogle::Cloud::Monitoring::V3bproto3'
+        , true);
+
+        static::$is_initialized = true;
+    }
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/Service.php b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/Service.php
new file mode 100644
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diff --git a/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/ServiceService.php b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/ServiceService.php
new file mode 100644
index 000000000000..fc2e98295861
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/ServiceService.php
@@ -0,0 +1,95 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service_service.proto
+
+namespace GPBMetadata\Google\Monitoring\V3;
+
+class ServiceService
+{
+    public static $is_initialized = false;
+
+    public static function initOnce() {
+        $pool = \Google\Protobuf\Internal\DescriptorPool::getGeneratedPool();
+
+        if (static::$is_initialized == true) {
+          return;
+        }
+        \GPBMetadata\Google\Api\Annotations::initOnce();
+        \GPBMetadata\Google\Api\Client::initOnce();
+        \GPBMetadata\Google\Api\FieldBehavior::initOnce();
+        \GPBMetadata\Google\Api\Resource::initOnce();
+        \GPBMetadata\Google\Monitoring\V3\Service::initOnce();
+        \GPBMetadata\Google\Protobuf\GPBEmpty::initOnce();
+        \GPBMetadata\Google\Protobuf\FieldMask::initOnce();
+        $pool->internalAddGeneratedFile(
+            '
+ó 
+*google/monitoring/v3/service_service.protogoogle.monitoring.v3google/api/client.protogoogle/api/field_behavior.protogoogle/api/resource.proto"google/monitoring/v3/service.protogoogle/protobuf/empty.proto google/protobuf/field_mask.proto"š

+CreateServiceRequest9
+parent
 
(	B)àAúA#!monitoring.googleapis.com/Service
+
+service_id 
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+name
 
(	B)àAúA#
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+ListServicesRequest9
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(	B)àAúA#!monitoring.googleapis.com/Service
+filter 
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+	page_size 
(
+
+page_token 
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+ListServicesResponse/
+services
 (2.google.monitoring.v3.Service
+next_page_token 
(	"|
+UpdateServiceRequest3
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(2.google.monitoring.v3.ServiceBàA/
+update_mask 
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+DeleteServiceRequest7
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(	B)àAúA#
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+"CreateServiceLevelObjectiveRequest9
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(	B7àAúA1
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+!ListServiceLevelObjectivesRequest9
+parent
 
(	B)àAúA#
+!monitoring.googleapis.com/Service
+filter 
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+	page_size 
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+"ListServiceLevelObjectivesResponseM
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+name
 
(	B7àAúA1
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+
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+
+GetService\'.google.monitoring.v3.GetServiceRequest.google.monitoring.v3.Service"(ÚAname‚Óä“/v3/{name=*/*/services/*}‘

+ListServices).google.monitoring.v3.ListServicesRequest*.google.monitoring.v3.ListServicesResponse"*ÚAparent‚Óä“/v3/{parent=*/*}/services˜

+
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+
DeleteService*.google.monitoring.v3.DeleteServiceRequest.google.protobuf.Empty"(ÚAname‚Óä“*/v3/{name=*/*/services/*}ú

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+GetServiceLevelObjective5.google.monitoring.v3.GetServiceLevelObjectiveRequest+.google.monitoring.v3.ServiceLevelObjective"AÚAname‚Óä“42/v3/{name=*/*/services/*/serviceLevelObjectives/*}Ô

+ListServiceLevelObjectives7.google.monitoring.v3.ListServiceLevelObjectivesRequest8.google.monitoring.v3.ListServiceLevelObjectivesResponse"CÚAparent‚Óä“42/v3/{parent=*/*/services/*}/serviceLevelObjectivesŒ
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+com.google.monitoring.v3BServiceMonitoringServiceProtoP
ZAcloud.google.com/go/monitoring/apiv3/v2/monitoringpb;monitoringpbªGoogle.Cloud.Monitoring.V3ÊGoogle\\Cloud\\Monitoring\\V3êGoogle::Cloud::Monitoring::V3bproto3'
+        , true);
+
+        static::$is_initialized = true;
+    }
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/Snooze.php b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/Snooze.php
new file mode 100644
index 000000000000..e98aca9ec3cc
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/Snooze.php
@@ -0,0 +1,39 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/snooze.proto
+
+namespace GPBMetadata\Google\Monitoring\V3;
+
+class Snooze
+{
+    public static $is_initialized = false;
+
+    public static function initOnce() {
+        $pool = \Google\Protobuf\Internal\DescriptorPool::getGeneratedPool();
+
+        if (static::$is_initialized == true) {
+          return;
+        }
+        \GPBMetadata\Google\Api\FieldBehavior::initOnce();
+        \GPBMetadata\Google\Api\Resource::initOnce();
+        \GPBMetadata\Google\Monitoring\V3\Common::initOnce();
+        $pool->internalAddGeneratedFile(
+            '
+�
+!google/monitoring/v3/snooze.protogoogle.monitoring.v3google/api/resource.proto!google/monitoring/v3/common.proto"Å
+Snooze
+name
 
(	BàA<
+criteria 
(2%.google.monitoring.v3.Snooze.CriteriaBàA9
+interval 
(2".google.monitoring.v3.TimeIntervalBàA
+display_name 
(	BàAH
+Criteria<
+policies
 (	B*úA\'
+%monitoring.googleapis.com/AlertPolicy:JêAG
+ monitoring.googleapis.com/Snooze#projects/{project}/snoozes/{snooze}BÆ

+com.google.monitoring.v3BSnoozeProtoP
ZAcloud.google.com/go/monitoring/apiv3/v2/monitoringpb;monitoringpbªGoogle.Cloud.Monitoring.V3ÊGoogle\\Cloud\\Monitoring\\V3êGoogle::Cloud::Monitoring::V3bproto3'
+        , true);
+
+        static::$is_initialized = true;
+    }
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/SnoozeService.php b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/SnoozeService.php
new file mode 100644
index 000000000000..c0b830a53194
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/SnoozeService.php
@@ -0,0 +1,56 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/snooze_service.proto
+
+namespace GPBMetadata\Google\Monitoring\V3;
+
+class SnoozeService
+{
+    public static $is_initialized = false;
+
+    public static function initOnce() {
+        $pool = \Google\Protobuf\Internal\DescriptorPool::getGeneratedPool();
+
+        if (static::$is_initialized == true) {
+          return;
+        }
+        \GPBMetadata\Google\Api\Annotations::initOnce();
+        \GPBMetadata\Google\Api\Client::initOnce();
+        \GPBMetadata\Google\Api\FieldBehavior::initOnce();
+        \GPBMetadata\Google\Api\Resource::initOnce();
+        \GPBMetadata\Google\Monitoring\V3\Snooze::initOnce();
+        \GPBMetadata\Google\Protobuf\FieldMask::initOnce();
+        $pool->internalAddGeneratedFile(
+            '
+•
+)google/monitoring/v3/snooze_service.protogoogle.monitoring.v3google/api/client.protogoogle/api/field_behavior.protogoogle/api/resource.proto!google/monitoring/v3/snooze.proto google/protobuf/field_mask.proto"‚

+CreateSnoozeRequest8
+parent
 
(	B(àAúA" monitoring.googleapis.com/Snooze1
+snooze 
(2.google.monitoring.v3.SnoozeBàA"”

+ListSnoozesRequest8
+parent
 
(	B(àAúA" monitoring.googleapis.com/Snooze
+filter 
(	BàA

+	page_size 
(BàA

+
+page_token 
(	BàA
"]
+ListSnoozesResponse-
+snoozes
 (2.google.monitoring.v3.Snooze
+next_page_token 
(	"J
+GetSnoozeRequest6
+name
 
(	B(àAúA"
+ monitoring.googleapis.com/Snooze"~
+UpdateSnoozeRequest1
+snooze
 
(2.google.monitoring.v3.SnoozeBàA4
+update_mask 
(2.google.protobuf.FieldMaskBàA2˜
+
SnoozeService˜

+CreateSnooze).google.monitoring.v3.CreateSnoozeRequest.google.monitoring.v3.Snooze"?ÚA
parent,snooze‚Óä“)"/v3/{parent=projects/*}/snoozes:snooze”

+ListSnoozes(.google.monitoring.v3.ListSnoozesRequest).google.monitoring.v3.ListSnoozesResponse"0ÚAparent‚Óä“!/v3/{parent=projects/*}/snoozes�

+	GetSnooze&.google.monitoring.v3.GetSnoozeRequest.google.monitoring.v3.Snooze".ÚAname‚Óä“!/v3/{name=projects/*/snoozes/*}¤

+UpdateSnooze).google.monitoring.v3.UpdateSnoozeRequest.google.monitoring.v3.Snooze"KÚAsnooze,update_mask‚Óä“02&/v3/{snooze.name=projects/*/snoozes/*}:snooze©
ÊAmonitoring.googleapis.comÒA‰
https://www.googleapis.com/auth/cloud-platform,https://www.googleapis.com/auth/monitoring,https://www.googleapis.com/auth/monitoring.readBÍ

+com.google.monitoring.v3BSnoozeServiceProtoP
ZAcloud.google.com/go/monitoring/apiv3/v2/monitoringpb;monitoringpbªGoogle.Cloud.Monitoring.V3ÊGoogle\\Cloud\\Monitoring\\V3êGoogle::Cloud::Monitoring::V3bproto3'
+        , true);
+
+        static::$is_initialized = true;
+    }
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/SpanContext.php b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/SpanContext.php
new file mode 100644
index 000000000000..ed30a8928d94
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/SpanContext.php
@@ -0,0 +1,29 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/span_context.proto
+
+namespace GPBMetadata\Google\Monitoring\V3;
+
+class SpanContext
+{
+    public static $is_initialized = false;
+
+    public static function initOnce() {
+        $pool = \Google\Protobuf\Internal\DescriptorPool::getGeneratedPool();
+
+        if (static::$is_initialized == true) {
+          return;
+        }
+        $pool->internalAddGeneratedFile(
+            '
+·
+\'google/monitoring/v3/span_context.protogoogle.monitoring.v3" 
+SpanContext
+	span_name
 
(	BË

+com.google.monitoring.v3BSpanContextProtoP
ZAcloud.google.com/go/monitoring/apiv3/v2/monitoringpb;monitoringpbªGoogle.Cloud.Monitoring.V3ÊGoogle\\Cloud\\Monitoring\\V3êGoogle::Cloud::Monitoring::V3bproto3'
+        , true);
+
+        static::$is_initialized = true;
+    }
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/Uptime.php b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/Uptime.php
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diff --git a/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/UptimeService.php b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/UptimeService.php
new file mode 100644
index 000000000000..e4188218376a
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/GPBMetadata/Google/Monitoring/V3/UptimeService.php
@@ -0,0 +1,72 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime_service.proto
+
+namespace GPBMetadata\Google\Monitoring\V3;
+
+class UptimeService
+{
+    public static $is_initialized = false;
+
+    public static function initOnce() {
+        $pool = \Google\Protobuf\Internal\DescriptorPool::getGeneratedPool();
+
+        if (static::$is_initialized == true) {
+          return;
+        }
+        \GPBMetadata\Google\Api\Annotations::initOnce();
+        \GPBMetadata\Google\Api\Client::initOnce();
+        \GPBMetadata\Google\Api\FieldBehavior::initOnce();
+        \GPBMetadata\Google\Api\Resource::initOnce();
+        \GPBMetadata\Google\Monitoring\V3\Uptime::initOnce();
+        \GPBMetadata\Google\Protobuf\GPBEmpty::initOnce();
+        \GPBMetadata\Google\Protobuf\FieldMask::initOnce();
+        $pool->internalAddGeneratedFile(
+            '
+˜
+)google/monitoring/v3/uptime_service.protogoogle.monitoring.v3google/api/client.protogoogle/api/field_behavior.protogoogle/api/resource.proto!google/monitoring/v3/uptime.protogoogle/protobuf/empty.proto google/protobuf/field_mask.proto"›

+ListUptimeCheckConfigsRequestC
+parent
 
(	B3àAúA-+monitoring.googleapis.com/UptimeCheckConfig
+filter 
(	
+	page_size 
(
+
+page_token 
(	"”

+ListUptimeCheckConfigsResponseE
+uptime_check_configs
 (2\'.google.monitoring.v3.UptimeCheckConfig
+next_page_token 
(	
+
+total_size 
("`
+GetUptimeCheckConfigRequestA
+name
 
(	B3àAúA-
++monitoring.googleapis.com/UptimeCheckConfig"°

+CreateUptimeCheckConfigRequestC
+parent
 
(	B3àAúA-+monitoring.googleapis.com/UptimeCheckConfigI
+uptime_check_config 
(2\'.google.monitoring.v3.UptimeCheckConfigBàA"œ

+UpdateUptimeCheckConfigRequest/
+update_mask 
(2.google.protobuf.FieldMaskI
+uptime_check_config 
(2\'.google.monitoring.v3.UptimeCheckConfigBàA"c
+DeleteUptimeCheckConfigRequestA
+name
 
(	B3àAúA-
++monitoring.googleapis.com/UptimeCheckConfig"B
+ListUptimeCheckIpsRequest
+	page_size 
(
+
+page_token 
(	"t
+ListUptimeCheckIpsResponse=
+uptime_check_ips
 (2#.google.monitoring.v3.UptimeCheckIp
+next_page_token 
(	2½
+
+UptimeCheckServiceÀ

+ListUptimeCheckConfigs3.google.monitoring.v3.ListUptimeCheckConfigsRequest4.google.monitoring.v3.ListUptimeCheckConfigsResponse";ÚAparent‚Óä“,*/v3/{parent=projects/*}/uptimeCheckConfigs­

+GetUptimeCheckConfig1.google.monitoring.v3.GetUptimeCheckConfigRequest\'.google.monitoring.v3.UptimeCheckConfig"9ÚAname‚Óä“,*/v3/{name=projects/*/uptimeCheckConfigs/*}Þ

+CreateUptimeCheckConfig4.google.monitoring.v3.CreateUptimeCheckConfigRequest\'.google.monitoring.v3.UptimeCheckConfig"dÚAparent,uptime_check_config‚Óä“A"*/v3/{parent=projects/*}/uptimeCheckConfigs:uptime_check_configë

+UpdateUptimeCheckConfig4.google.monitoring.v3.UpdateUptimeCheckConfigRequest\'.google.monitoring.v3.UptimeCheckConfig"qÚAuptime_check_config‚Óä“U2>/v3/{uptime_check_config.name=projects/*/uptimeCheckConfigs/*}:uptime_check_config¢

+DeleteUptimeCheckConfig4.google.monitoring.v3.DeleteUptimeCheckConfigRequest.google.protobuf.Empty"9ÚAname‚Óä“,**/v3/{name=projects/*/uptimeCheckConfigs/*}“

+ListUptimeCheckIps/.google.monitoring.v3.ListUptimeCheckIpsRequest0.google.monitoring.v3.ListUptimeCheckIpsResponse"‚Óä“/v3/uptimeCheckIps©
ÊAmonitoring.googleapis.comÒA‰
https://www.googleapis.com/auth/cloud-platform,https://www.googleapis.com/auth/monitoring,https://www.googleapis.com/auth/monitoring.readBÍ

+com.google.monitoring.v3BUptimeServiceProtoP
ZAcloud.google.com/go/monitoring/apiv3/v2/monitoringpb;monitoringpbªGoogle.Cloud.Monitoring.V3ÊGoogle\\Cloud\\Monitoring\\V3êGoogle::Cloud::Monitoring::V3bproto3'
+        , true);
+
+        static::$is_initialized = true;
+    }
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Aggregation.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Aggregation.php
new file mode 100644
index 000000000000..7d97df10e8e0
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Aggregation.php
@@ -0,0 +1,389 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/common.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Describes how to combine multiple time series to provide a different view of
+ * the data.  Aggregation of time series is done in two steps. First, each time
+ * series in the set is _aligned_ to the same time interval boundaries, then the
+ * set of time series is optionally _reduced_ in number.
+ * Alignment consists of applying the `per_series_aligner` operation
+ * to each time series after its data has been divided into regular
+ * `alignment_period` time intervals. This process takes _all_ of the data
+ * points in an alignment period, applies a mathematical transformation such as
+ * averaging, minimum, maximum, delta, etc., and converts them into a single
+ * data point per period.
+ * Reduction is when the aligned and transformed time series can optionally be
+ * combined, reducing the number of time series through similar mathematical
+ * transformations. Reduction involves applying a `cross_series_reducer` to
+ * all the time series, optionally sorting the time series into subsets with
+ * `group_by_fields`, and applying the reducer to each subset.
+ * The raw time series data can contain a huge amount of information from
+ * multiple sources. Alignment and reduction transforms this mass of data into
+ * a more manageable and representative collection of data, for example "the
+ * 95% latency across the average of all tasks in a cluster". This
+ * representative data can be more easily graphed and comprehended, and the
+ * individual time series data is still available for later drilldown. For more
+ * details, see [Filtering and
+ * aggregation](https://cloud.google.com/monitoring/api/v3/aggregation).
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.Aggregation</code>
+ */
+class Aggregation extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The `alignment_period` specifies a time interval, in seconds, that is used
+     * to divide the data in all the
+     * [time series][google.monitoring.v3.TimeSeries] into consistent blocks of
+     * time. This will be done before the per-series aligner can be applied to
+     * the data.
+     * The value must be at least 60 seconds. If a per-series
+     * aligner other than `ALIGN_NONE` is specified, this field is required or an
+     * error is returned. If no per-series aligner is specified, or the aligner
+     * `ALIGN_NONE` is specified, then this field is ignored.
+     * The maximum value of the `alignment_period` is 104 weeks (2 years) for
+     * charts, and 90,000 seconds (25 hours) for alerting policies.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration alignment_period = 1;</code>
+     */
+    protected $alignment_period = null;
+    /**
+     * An `Aligner` describes how to bring the data points in a single
+     * time series into temporal alignment. Except for `ALIGN_NONE`, all
+     * alignments cause all the data points in an `alignment_period` to be
+     * mathematically grouped together, resulting in a single data point for
+     * each `alignment_period` with end timestamp at the end of the period.
+     * Not all alignment operations may be applied to all time series. The valid
+     * choices depend on the `metric_kind` and `value_type` of the original time
+     * series. Alignment can change the `metric_kind` or the `value_type` of
+     * the time series.
+     * Time series data must be aligned in order to perform cross-time
+     * series reduction. If `cross_series_reducer` is specified, then
+     * `per_series_aligner` must be specified and not equal to `ALIGN_NONE`
+     * and `alignment_period` must be specified; otherwise, an error is
+     * returned.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Aggregation.Aligner per_series_aligner = 2;</code>
+     */
+    protected $per_series_aligner = 0;
+    /**
+     * The reduction operation to be used to combine time series into a single
+     * time series, where the value of each data point in the resulting series is
+     * a function of all the already aligned values in the input time series.
+     * Not all reducer operations can be applied to all time series. The valid
+     * choices depend on the `metric_kind` and the `value_type` of the original
+     * time series. Reduction can yield a time series with a different
+     * `metric_kind` or `value_type` than the input time series.
+     * Time series data must first be aligned (see `per_series_aligner`) in order
+     * to perform cross-time series reduction. If `cross_series_reducer` is
+     * specified, then `per_series_aligner` must be specified, and must not be
+     * `ALIGN_NONE`. An `alignment_period` must also be specified; otherwise, an
+     * error is returned.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Aggregation.Reducer cross_series_reducer = 4;</code>
+     */
+    protected $cross_series_reducer = 0;
+    /**
+     * The set of fields to preserve when `cross_series_reducer` is
+     * specified. The `group_by_fields` determine how the time series are
+     * partitioned into subsets prior to applying the aggregation
+     * operation. Each subset contains time series that have the same
+     * value for each of the grouping fields. Each individual time
+     * series is a member of exactly one subset. The
+     * `cross_series_reducer` is applied to each subset of time series.
+     * It is not possible to reduce across different resource types, so
+     * this field implicitly contains `resource.type`.  Fields not
+     * specified in `group_by_fields` are aggregated away.  If
+     * `group_by_fields` is not specified and all the time series have
+     * the same resource type, then the time series are aggregated into
+     * a single output time series. If `cross_series_reducer` is not
+     * defined, this field is ignored.
+     *
+     * Generated from protobuf field <code>repeated string group_by_fields = 5;</code>
+     */
+    private $group_by_fields;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type \Google\Protobuf\Duration $alignment_period
+     *           The `alignment_period` specifies a time interval, in seconds, that is used
+     *           to divide the data in all the
+     *           [time series][google.monitoring.v3.TimeSeries] into consistent blocks of
+     *           time. This will be done before the per-series aligner can be applied to
+     *           the data.
+     *           The value must be at least 60 seconds. If a per-series
+     *           aligner other than `ALIGN_NONE` is specified, this field is required or an
+     *           error is returned. If no per-series aligner is specified, or the aligner
+     *           `ALIGN_NONE` is specified, then this field is ignored.
+     *           The maximum value of the `alignment_period` is 104 weeks (2 years) for
+     *           charts, and 90,000 seconds (25 hours) for alerting policies.
+     *     @type int $per_series_aligner
+     *           An `Aligner` describes how to bring the data points in a single
+     *           time series into temporal alignment. Except for `ALIGN_NONE`, all
+     *           alignments cause all the data points in an `alignment_period` to be
+     *           mathematically grouped together, resulting in a single data point for
+     *           each `alignment_period` with end timestamp at the end of the period.
+     *           Not all alignment operations may be applied to all time series. The valid
+     *           choices depend on the `metric_kind` and `value_type` of the original time
+     *           series. Alignment can change the `metric_kind` or the `value_type` of
+     *           the time series.
+     *           Time series data must be aligned in order to perform cross-time
+     *           series reduction. If `cross_series_reducer` is specified, then
+     *           `per_series_aligner` must be specified and not equal to `ALIGN_NONE`
+     *           and `alignment_period` must be specified; otherwise, an error is
+     *           returned.
+     *     @type int $cross_series_reducer
+     *           The reduction operation to be used to combine time series into a single
+     *           time series, where the value of each data point in the resulting series is
+     *           a function of all the already aligned values in the input time series.
+     *           Not all reducer operations can be applied to all time series. The valid
+     *           choices depend on the `metric_kind` and the `value_type` of the original
+     *           time series. Reduction can yield a time series with a different
+     *           `metric_kind` or `value_type` than the input time series.
+     *           Time series data must first be aligned (see `per_series_aligner`) in order
+     *           to perform cross-time series reduction. If `cross_series_reducer` is
+     *           specified, then `per_series_aligner` must be specified, and must not be
+     *           `ALIGN_NONE`. An `alignment_period` must also be specified; otherwise, an
+     *           error is returned.
+     *     @type array<string>|\Google\Protobuf\Internal\RepeatedField $group_by_fields
+     *           The set of fields to preserve when `cross_series_reducer` is
+     *           specified. The `group_by_fields` determine how the time series are
+     *           partitioned into subsets prior to applying the aggregation
+     *           operation. Each subset contains time series that have the same
+     *           value for each of the grouping fields. Each individual time
+     *           series is a member of exactly one subset. The
+     *           `cross_series_reducer` is applied to each subset of time series.
+     *           It is not possible to reduce across different resource types, so
+     *           this field implicitly contains `resource.type`.  Fields not
+     *           specified in `group_by_fields` are aggregated away.  If
+     *           `group_by_fields` is not specified and all the time series have
+     *           the same resource type, then the time series are aggregated into
+     *           a single output time series. If `cross_series_reducer` is not
+     *           defined, this field is ignored.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Common::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The `alignment_period` specifies a time interval, in seconds, that is used
+     * to divide the data in all the
+     * [time series][google.monitoring.v3.TimeSeries] into consistent blocks of
+     * time. This will be done before the per-series aligner can be applied to
+     * the data.
+     * The value must be at least 60 seconds. If a per-series
+     * aligner other than `ALIGN_NONE` is specified, this field is required or an
+     * error is returned. If no per-series aligner is specified, or the aligner
+     * `ALIGN_NONE` is specified, then this field is ignored.
+     * The maximum value of the `alignment_period` is 104 weeks (2 years) for
+     * charts, and 90,000 seconds (25 hours) for alerting policies.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration alignment_period = 1;</code>
+     * @return \Google\Protobuf\Duration|null
+     */
+    public function getAlignmentPeriod()
+    {
+        return $this->alignment_period;
+    }
+
+    public function hasAlignmentPeriod()
+    {
+        return isset($this->alignment_period);
+    }
+
+    public function clearAlignmentPeriod()
+    {
+        unset($this->alignment_period);
+    }
+
+    /**
+     * The `alignment_period` specifies a time interval, in seconds, that is used
+     * to divide the data in all the
+     * [time series][google.monitoring.v3.TimeSeries] into consistent blocks of
+     * time. This will be done before the per-series aligner can be applied to
+     * the data.
+     * The value must be at least 60 seconds. If a per-series
+     * aligner other than `ALIGN_NONE` is specified, this field is required or an
+     * error is returned. If no per-series aligner is specified, or the aligner
+     * `ALIGN_NONE` is specified, then this field is ignored.
+     * The maximum value of the `alignment_period` is 104 weeks (2 years) for
+     * charts, and 90,000 seconds (25 hours) for alerting policies.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration alignment_period = 1;</code>
+     * @param \Google\Protobuf\Duration $var
+     * @return $this
+     */
+    public function setAlignmentPeriod($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\Duration::class);
+        $this->alignment_period = $var;
+
+        return $this;
+    }
+
+    /**
+     * An `Aligner` describes how to bring the data points in a single
+     * time series into temporal alignment. Except for `ALIGN_NONE`, all
+     * alignments cause all the data points in an `alignment_period` to be
+     * mathematically grouped together, resulting in a single data point for
+     * each `alignment_period` with end timestamp at the end of the period.
+     * Not all alignment operations may be applied to all time series. The valid
+     * choices depend on the `metric_kind` and `value_type` of the original time
+     * series. Alignment can change the `metric_kind` or the `value_type` of
+     * the time series.
+     * Time series data must be aligned in order to perform cross-time
+     * series reduction. If `cross_series_reducer` is specified, then
+     * `per_series_aligner` must be specified and not equal to `ALIGN_NONE`
+     * and `alignment_period` must be specified; otherwise, an error is
+     * returned.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Aggregation.Aligner per_series_aligner = 2;</code>
+     * @return int
+     */
+    public function getPerSeriesAligner()
+    {
+        return $this->per_series_aligner;
+    }
+
+    /**
+     * An `Aligner` describes how to bring the data points in a single
+     * time series into temporal alignment. Except for `ALIGN_NONE`, all
+     * alignments cause all the data points in an `alignment_period` to be
+     * mathematically grouped together, resulting in a single data point for
+     * each `alignment_period` with end timestamp at the end of the period.
+     * Not all alignment operations may be applied to all time series. The valid
+     * choices depend on the `metric_kind` and `value_type` of the original time
+     * series. Alignment can change the `metric_kind` or the `value_type` of
+     * the time series.
+     * Time series data must be aligned in order to perform cross-time
+     * series reduction. If `cross_series_reducer` is specified, then
+     * `per_series_aligner` must be specified and not equal to `ALIGN_NONE`
+     * and `alignment_period` must be specified; otherwise, an error is
+     * returned.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Aggregation.Aligner per_series_aligner = 2;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setPerSeriesAligner($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Cloud\Monitoring\V3\Aggregation\Aligner::class);
+        $this->per_series_aligner = $var;
+
+        return $this;
+    }
+
+    /**
+     * The reduction operation to be used to combine time series into a single
+     * time series, where the value of each data point in the resulting series is
+     * a function of all the already aligned values in the input time series.
+     * Not all reducer operations can be applied to all time series. The valid
+     * choices depend on the `metric_kind` and the `value_type` of the original
+     * time series. Reduction can yield a time series with a different
+     * `metric_kind` or `value_type` than the input time series.
+     * Time series data must first be aligned (see `per_series_aligner`) in order
+     * to perform cross-time series reduction. If `cross_series_reducer` is
+     * specified, then `per_series_aligner` must be specified, and must not be
+     * `ALIGN_NONE`. An `alignment_period` must also be specified; otherwise, an
+     * error is returned.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Aggregation.Reducer cross_series_reducer = 4;</code>
+     * @return int
+     */
+    public function getCrossSeriesReducer()
+    {
+        return $this->cross_series_reducer;
+    }
+
+    /**
+     * The reduction operation to be used to combine time series into a single
+     * time series, where the value of each data point in the resulting series is
+     * a function of all the already aligned values in the input time series.
+     * Not all reducer operations can be applied to all time series. The valid
+     * choices depend on the `metric_kind` and the `value_type` of the original
+     * time series. Reduction can yield a time series with a different
+     * `metric_kind` or `value_type` than the input time series.
+     * Time series data must first be aligned (see `per_series_aligner`) in order
+     * to perform cross-time series reduction. If `cross_series_reducer` is
+     * specified, then `per_series_aligner` must be specified, and must not be
+     * `ALIGN_NONE`. An `alignment_period` must also be specified; otherwise, an
+     * error is returned.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Aggregation.Reducer cross_series_reducer = 4;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setCrossSeriesReducer($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Cloud\Monitoring\V3\Aggregation\Reducer::class);
+        $this->cross_series_reducer = $var;
+
+        return $this;
+    }
+
+    /**
+     * The set of fields to preserve when `cross_series_reducer` is
+     * specified. The `group_by_fields` determine how the time series are
+     * partitioned into subsets prior to applying the aggregation
+     * operation. Each subset contains time series that have the same
+     * value for each of the grouping fields. Each individual time
+     * series is a member of exactly one subset. The
+     * `cross_series_reducer` is applied to each subset of time series.
+     * It is not possible to reduce across different resource types, so
+     * this field implicitly contains `resource.type`.  Fields not
+     * specified in `group_by_fields` are aggregated away.  If
+     * `group_by_fields` is not specified and all the time series have
+     * the same resource type, then the time series are aggregated into
+     * a single output time series. If `cross_series_reducer` is not
+     * defined, this field is ignored.
+     *
+     * Generated from protobuf field <code>repeated string group_by_fields = 5;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getGroupByFields()
+    {
+        return $this->group_by_fields;
+    }
+
+    /**
+     * The set of fields to preserve when `cross_series_reducer` is
+     * specified. The `group_by_fields` determine how the time series are
+     * partitioned into subsets prior to applying the aggregation
+     * operation. Each subset contains time series that have the same
+     * value for each of the grouping fields. Each individual time
+     * series is a member of exactly one subset. The
+     * `cross_series_reducer` is applied to each subset of time series.
+     * It is not possible to reduce across different resource types, so
+     * this field implicitly contains `resource.type`.  Fields not
+     * specified in `group_by_fields` are aggregated away.  If
+     * `group_by_fields` is not specified and all the time series have
+     * the same resource type, then the time series are aggregated into
+     * a single output time series. If `cross_series_reducer` is not
+     * defined, this field is ignored.
+     *
+     * Generated from protobuf field <code>repeated string group_by_fields = 5;</code>
+     * @param array<string>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setGroupByFields($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::STRING);
+        $this->group_by_fields = $arr;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Aggregation/Aligner.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Aggregation/Aligner.php
new file mode 100644
index 000000000000..9f2767800daf
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Aggregation/Aligner.php
@@ -0,0 +1,269 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/common.proto
+
+namespace Google\Cloud\Monitoring\V3\Aggregation;
+
+use UnexpectedValueException;
+
+/**
+ * The `Aligner` specifies the operation that will be applied to the data
+ * points in each alignment period in a time series. Except for
+ * `ALIGN_NONE`, which specifies that no operation be applied, each alignment
+ * operation replaces the set of data values in each alignment period with
+ * a single value: the result of applying the operation to the data values.
+ * An aligned time series has a single data value at the end of each
+ * `alignment_period`.
+ * An alignment operation can change the data type of the values, too. For
+ * example, if you apply a counting operation to boolean values, the data
+ * `value_type` in the original time series is `BOOLEAN`, but the `value_type`
+ * in the aligned result is `INT64`.
+ *
+ * Protobuf type <code>google.monitoring.v3.Aggregation.Aligner</code>
+ */
+class Aligner
+{
+    /**
+     * No alignment. Raw data is returned. Not valid if cross-series reduction
+     * is requested. The `value_type` of the result is the same as the
+     * `value_type` of the input.
+     *
+     * Generated from protobuf enum <code>ALIGN_NONE = 0;</code>
+     */
+    const ALIGN_NONE = 0;
+    /**
+     * Align and convert to
+     * [DELTA][google.api.MetricDescriptor.MetricKind.DELTA].
+     * The output is `delta = y1 - y0`.
+     * This alignment is valid for
+     * [CUMULATIVE][google.api.MetricDescriptor.MetricKind.CUMULATIVE] and
+     * `DELTA` metrics. If the selected alignment period results in periods
+     * with no data, then the aligned value for such a period is created by
+     * interpolation. The `value_type`  of the aligned result is the same as
+     * the `value_type` of the input.
+     *
+     * Generated from protobuf enum <code>ALIGN_DELTA = 1;</code>
+     */
+    const ALIGN_DELTA = 1;
+    /**
+     * Align and convert to a rate. The result is computed as
+     * `rate = (y1 - y0)/(t1 - t0)`, or "delta over time".
+     * Think of this aligner as providing the slope of the line that passes
+     * through the value at the start and at the end of the `alignment_period`.
+     * This aligner is valid for `CUMULATIVE`
+     * and `DELTA` metrics with numeric values. If the selected alignment
+     * period results in periods with no data, then the aligned value for
+     * such a period is created by interpolation. The output is a `GAUGE`
+     * metric with `value_type` `DOUBLE`.
+     * If, by "rate", you mean "percentage change", see the
+     * `ALIGN_PERCENT_CHANGE` aligner instead.
+     *
+     * Generated from protobuf enum <code>ALIGN_RATE = 2;</code>
+     */
+    const ALIGN_RATE = 2;
+    /**
+     * Align by interpolating between adjacent points around the alignment
+     * period boundary. This aligner is valid for `GAUGE` metrics with
+     * numeric values. The `value_type` of the aligned result is the same as the
+     * `value_type` of the input.
+     *
+     * Generated from protobuf enum <code>ALIGN_INTERPOLATE = 3;</code>
+     */
+    const ALIGN_INTERPOLATE = 3;
+    /**
+     * Align by moving the most recent data point before the end of the
+     * alignment period to the boundary at the end of the alignment
+     * period. This aligner is valid for `GAUGE` metrics. The `value_type` of
+     * the aligned result is the same as the `value_type` of the input.
+     *
+     * Generated from protobuf enum <code>ALIGN_NEXT_OLDER = 4;</code>
+     */
+    const ALIGN_NEXT_OLDER = 4;
+    /**
+     * Align the time series by returning the minimum value in each alignment
+     * period. This aligner is valid for `GAUGE` and `DELTA` metrics with
+     * numeric values. The `value_type` of the aligned result is the same as
+     * the `value_type` of the input.
+     *
+     * Generated from protobuf enum <code>ALIGN_MIN = 10;</code>
+     */
+    const ALIGN_MIN = 10;
+    /**
+     * Align the time series by returning the maximum value in each alignment
+     * period. This aligner is valid for `GAUGE` and `DELTA` metrics with
+     * numeric values. The `value_type` of the aligned result is the same as
+     * the `value_type` of the input.
+     *
+     * Generated from protobuf enum <code>ALIGN_MAX = 11;</code>
+     */
+    const ALIGN_MAX = 11;
+    /**
+     * Align the time series by returning the mean value in each alignment
+     * period. This aligner is valid for `GAUGE` and `DELTA` metrics with
+     * numeric values. The `value_type` of the aligned result is `DOUBLE`.
+     *
+     * Generated from protobuf enum <code>ALIGN_MEAN = 12;</code>
+     */
+    const ALIGN_MEAN = 12;
+    /**
+     * Align the time series by returning the number of values in each alignment
+     * period. This aligner is valid for `GAUGE` and `DELTA` metrics with
+     * numeric or Boolean values. The `value_type` of the aligned result is
+     * `INT64`.
+     *
+     * Generated from protobuf enum <code>ALIGN_COUNT = 13;</code>
+     */
+    const ALIGN_COUNT = 13;
+    /**
+     * Align the time series by returning the sum of the values in each
+     * alignment period. This aligner is valid for `GAUGE` and `DELTA`
+     * metrics with numeric and distribution values. The `value_type` of the
+     * aligned result is the same as the `value_type` of the input.
+     *
+     * Generated from protobuf enum <code>ALIGN_SUM = 14;</code>
+     */
+    const ALIGN_SUM = 14;
+    /**
+     * Align the time series by returning the standard deviation of the values
+     * in each alignment period. This aligner is valid for `GAUGE` and
+     * `DELTA` metrics with numeric values. The `value_type` of the output is
+     * `DOUBLE`.
+     *
+     * Generated from protobuf enum <code>ALIGN_STDDEV = 15;</code>
+     */
+    const ALIGN_STDDEV = 15;
+    /**
+     * Align the time series by returning the number of `True` values in
+     * each alignment period. This aligner is valid for `GAUGE` metrics with
+     * Boolean values. The `value_type` of the output is `INT64`.
+     *
+     * Generated from protobuf enum <code>ALIGN_COUNT_TRUE = 16;</code>
+     */
+    const ALIGN_COUNT_TRUE = 16;
+    /**
+     * Align the time series by returning the number of `False` values in
+     * each alignment period. This aligner is valid for `GAUGE` metrics with
+     * Boolean values. The `value_type` of the output is `INT64`.
+     *
+     * Generated from protobuf enum <code>ALIGN_COUNT_FALSE = 24;</code>
+     */
+    const ALIGN_COUNT_FALSE = 24;
+    /**
+     * Align the time series by returning the ratio of the number of `True`
+     * values to the total number of values in each alignment period. This
+     * aligner is valid for `GAUGE` metrics with Boolean values. The output
+     * value is in the range [0.0, 1.0] and has `value_type` `DOUBLE`.
+     *
+     * Generated from protobuf enum <code>ALIGN_FRACTION_TRUE = 17;</code>
+     */
+    const ALIGN_FRACTION_TRUE = 17;
+    /**
+     * Align the time series by using [percentile
+     * aggregation](https://en.wikipedia.org/wiki/Percentile). The resulting
+     * data point in each alignment period is the 99th percentile of all data
+     * points in the period. This aligner is valid for `GAUGE` and `DELTA`
+     * metrics with distribution values. The output is a `GAUGE` metric with
+     * `value_type` `DOUBLE`.
+     *
+     * Generated from protobuf enum <code>ALIGN_PERCENTILE_99 = 18;</code>
+     */
+    const ALIGN_PERCENTILE_99 = 18;
+    /**
+     * Align the time series by using [percentile
+     * aggregation](https://en.wikipedia.org/wiki/Percentile). The resulting
+     * data point in each alignment period is the 95th percentile of all data
+     * points in the period. This aligner is valid for `GAUGE` and `DELTA`
+     * metrics with distribution values. The output is a `GAUGE` metric with
+     * `value_type` `DOUBLE`.
+     *
+     * Generated from protobuf enum <code>ALIGN_PERCENTILE_95 = 19;</code>
+     */
+    const ALIGN_PERCENTILE_95 = 19;
+    /**
+     * Align the time series by using [percentile
+     * aggregation](https://en.wikipedia.org/wiki/Percentile). The resulting
+     * data point in each alignment period is the 50th percentile of all data
+     * points in the period. This aligner is valid for `GAUGE` and `DELTA`
+     * metrics with distribution values. The output is a `GAUGE` metric with
+     * `value_type` `DOUBLE`.
+     *
+     * Generated from protobuf enum <code>ALIGN_PERCENTILE_50 = 20;</code>
+     */
+    const ALIGN_PERCENTILE_50 = 20;
+    /**
+     * Align the time series by using [percentile
+     * aggregation](https://en.wikipedia.org/wiki/Percentile). The resulting
+     * data point in each alignment period is the 5th percentile of all data
+     * points in the period. This aligner is valid for `GAUGE` and `DELTA`
+     * metrics with distribution values. The output is a `GAUGE` metric with
+     * `value_type` `DOUBLE`.
+     *
+     * Generated from protobuf enum <code>ALIGN_PERCENTILE_05 = 21;</code>
+     */
+    const ALIGN_PERCENTILE_05 = 21;
+    /**
+     * Align and convert to a percentage change. This aligner is valid for
+     * `GAUGE` and `DELTA` metrics with numeric values. This alignment returns
+     * `((current - previous)/previous) * 100`, where the value of `previous` is
+     * determined based on the `alignment_period`.
+     * If the values of `current` and `previous` are both 0, then the returned
+     * value is 0. If only `previous` is 0, the returned value is infinity.
+     * A 10-minute moving mean is computed at each point of the alignment period
+     * prior to the above calculation to smooth the metric and prevent false
+     * positives from very short-lived spikes. The moving mean is only
+     * applicable for data whose values are `>= 0`. Any values `< 0` are
+     * treated as a missing datapoint, and are ignored. While `DELTA`
+     * metrics are accepted by this alignment, special care should be taken that
+     * the values for the metric will always be positive. The output is a
+     * `GAUGE` metric with `value_type` `DOUBLE`.
+     *
+     * Generated from protobuf enum <code>ALIGN_PERCENT_CHANGE = 23;</code>
+     */
+    const ALIGN_PERCENT_CHANGE = 23;
+
+    private static $valueToName = [
+        self::ALIGN_NONE => 'ALIGN_NONE',
+        self::ALIGN_DELTA => 'ALIGN_DELTA',
+        self::ALIGN_RATE => 'ALIGN_RATE',
+        self::ALIGN_INTERPOLATE => 'ALIGN_INTERPOLATE',
+        self::ALIGN_NEXT_OLDER => 'ALIGN_NEXT_OLDER',
+        self::ALIGN_MIN => 'ALIGN_MIN',
+        self::ALIGN_MAX => 'ALIGN_MAX',
+        self::ALIGN_MEAN => 'ALIGN_MEAN',
+        self::ALIGN_COUNT => 'ALIGN_COUNT',
+        self::ALIGN_SUM => 'ALIGN_SUM',
+        self::ALIGN_STDDEV => 'ALIGN_STDDEV',
+        self::ALIGN_COUNT_TRUE => 'ALIGN_COUNT_TRUE',
+        self::ALIGN_COUNT_FALSE => 'ALIGN_COUNT_FALSE',
+        self::ALIGN_FRACTION_TRUE => 'ALIGN_FRACTION_TRUE',
+        self::ALIGN_PERCENTILE_99 => 'ALIGN_PERCENTILE_99',
+        self::ALIGN_PERCENTILE_95 => 'ALIGN_PERCENTILE_95',
+        self::ALIGN_PERCENTILE_50 => 'ALIGN_PERCENTILE_50',
+        self::ALIGN_PERCENTILE_05 => 'ALIGN_PERCENTILE_05',
+        self::ALIGN_PERCENT_CHANGE => 'ALIGN_PERCENT_CHANGE',
+    ];
+
+    public static function name($value)
+    {
+        if (!isset(self::$valueToName[$value])) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no name defined for value %s', __CLASS__, $value));
+        }
+        return self::$valueToName[$value];
+    }
+
+
+    public static function value($name)
+    {
+        $const = __CLASS__ . '::' . strtoupper($name);
+        if (!defined($const)) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no value defined for name %s', __CLASS__, $name));
+        }
+        return constant($const);
+    }
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(Aligner::class, \Google\Cloud\Monitoring\V3\Aggregation_Aligner::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Aggregation/Reducer.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Aggregation/Reducer.php
new file mode 100644
index 000000000000..c5d065c3b4e6
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Aggregation/Reducer.php
@@ -0,0 +1,191 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/common.proto
+
+namespace Google\Cloud\Monitoring\V3\Aggregation;
+
+use UnexpectedValueException;
+
+/**
+ * A Reducer operation describes how to aggregate data points from multiple
+ * time series into a single time series, where the value of each data point
+ * in the resulting series is a function of all the already aligned values in
+ * the input time series.
+ *
+ * Protobuf type <code>google.monitoring.v3.Aggregation.Reducer</code>
+ */
+class Reducer
+{
+    /**
+     * No cross-time series reduction. The output of the `Aligner` is
+     * returned.
+     *
+     * Generated from protobuf enum <code>REDUCE_NONE = 0;</code>
+     */
+    const REDUCE_NONE = 0;
+    /**
+     * Reduce by computing the mean value across time series for each
+     * alignment period. This reducer is valid for
+     * [DELTA][google.api.MetricDescriptor.MetricKind.DELTA] and
+     * [GAUGE][google.api.MetricDescriptor.MetricKind.GAUGE] metrics with
+     * numeric or distribution values. The `value_type` of the output is
+     * [DOUBLE][google.api.MetricDescriptor.ValueType.DOUBLE].
+     *
+     * Generated from protobuf enum <code>REDUCE_MEAN = 1;</code>
+     */
+    const REDUCE_MEAN = 1;
+    /**
+     * Reduce by computing the minimum value across time series for each
+     * alignment period. This reducer is valid for `DELTA` and `GAUGE` metrics
+     * with numeric values. The `value_type` of the output is the same as the
+     * `value_type` of the input.
+     *
+     * Generated from protobuf enum <code>REDUCE_MIN = 2;</code>
+     */
+    const REDUCE_MIN = 2;
+    /**
+     * Reduce by computing the maximum value across time series for each
+     * alignment period. This reducer is valid for `DELTA` and `GAUGE` metrics
+     * with numeric values. The `value_type` of the output is the same as the
+     * `value_type` of the input.
+     *
+     * Generated from protobuf enum <code>REDUCE_MAX = 3;</code>
+     */
+    const REDUCE_MAX = 3;
+    /**
+     * Reduce by computing the sum across time series for each
+     * alignment period. This reducer is valid for `DELTA` and `GAUGE` metrics
+     * with numeric and distribution values. The `value_type` of the output is
+     * the same as the `value_type` of the input.
+     *
+     * Generated from protobuf enum <code>REDUCE_SUM = 4;</code>
+     */
+    const REDUCE_SUM = 4;
+    /**
+     * Reduce by computing the standard deviation across time series
+     * for each alignment period. This reducer is valid for `DELTA` and
+     * `GAUGE` metrics with numeric or distribution values. The `value_type`
+     * of the output is `DOUBLE`.
+     *
+     * Generated from protobuf enum <code>REDUCE_STDDEV = 5;</code>
+     */
+    const REDUCE_STDDEV = 5;
+    /**
+     * Reduce by computing the number of data points across time series
+     * for each alignment period. This reducer is valid for `DELTA` and
+     * `GAUGE` metrics of numeric, Boolean, distribution, and string
+     * `value_type`. The `value_type` of the output is `INT64`.
+     *
+     * Generated from protobuf enum <code>REDUCE_COUNT = 6;</code>
+     */
+    const REDUCE_COUNT = 6;
+    /**
+     * Reduce by computing the number of `True`-valued data points across time
+     * series for each alignment period. This reducer is valid for `DELTA` and
+     * `GAUGE` metrics of Boolean `value_type`. The `value_type` of the output
+     * is `INT64`.
+     *
+     * Generated from protobuf enum <code>REDUCE_COUNT_TRUE = 7;</code>
+     */
+    const REDUCE_COUNT_TRUE = 7;
+    /**
+     * Reduce by computing the number of `False`-valued data points across time
+     * series for each alignment period. This reducer is valid for `DELTA` and
+     * `GAUGE` metrics of Boolean `value_type`. The `value_type` of the output
+     * is `INT64`.
+     *
+     * Generated from protobuf enum <code>REDUCE_COUNT_FALSE = 15;</code>
+     */
+    const REDUCE_COUNT_FALSE = 15;
+    /**
+     * Reduce by computing the ratio of the number of `True`-valued data points
+     * to the total number of data points for each alignment period. This
+     * reducer is valid for `DELTA` and `GAUGE` metrics of Boolean `value_type`.
+     * The output value is in the range [0.0, 1.0] and has `value_type`
+     * `DOUBLE`.
+     *
+     * Generated from protobuf enum <code>REDUCE_FRACTION_TRUE = 8;</code>
+     */
+    const REDUCE_FRACTION_TRUE = 8;
+    /**
+     * Reduce by computing the [99th
+     * percentile](https://en.wikipedia.org/wiki/Percentile) of data points
+     * across time series for each alignment period. This reducer is valid for
+     * `GAUGE` and `DELTA` metrics of numeric and distribution type. The value
+     * of the output is `DOUBLE`.
+     *
+     * Generated from protobuf enum <code>REDUCE_PERCENTILE_99 = 9;</code>
+     */
+    const REDUCE_PERCENTILE_99 = 9;
+    /**
+     * Reduce by computing the [95th
+     * percentile](https://en.wikipedia.org/wiki/Percentile) of data points
+     * across time series for each alignment period. This reducer is valid for
+     * `GAUGE` and `DELTA` metrics of numeric and distribution type. The value
+     * of the output is `DOUBLE`.
+     *
+     * Generated from protobuf enum <code>REDUCE_PERCENTILE_95 = 10;</code>
+     */
+    const REDUCE_PERCENTILE_95 = 10;
+    /**
+     * Reduce by computing the [50th
+     * percentile](https://en.wikipedia.org/wiki/Percentile) of data points
+     * across time series for each alignment period. This reducer is valid for
+     * `GAUGE` and `DELTA` metrics of numeric and distribution type. The value
+     * of the output is `DOUBLE`.
+     *
+     * Generated from protobuf enum <code>REDUCE_PERCENTILE_50 = 11;</code>
+     */
+    const REDUCE_PERCENTILE_50 = 11;
+    /**
+     * Reduce by computing the [5th
+     * percentile](https://en.wikipedia.org/wiki/Percentile) of data points
+     * across time series for each alignment period. This reducer is valid for
+     * `GAUGE` and `DELTA` metrics of numeric and distribution type. The value
+     * of the output is `DOUBLE`.
+     *
+     * Generated from protobuf enum <code>REDUCE_PERCENTILE_05 = 12;</code>
+     */
+    const REDUCE_PERCENTILE_05 = 12;
+
+    private static $valueToName = [
+        self::REDUCE_NONE => 'REDUCE_NONE',
+        self::REDUCE_MEAN => 'REDUCE_MEAN',
+        self::REDUCE_MIN => 'REDUCE_MIN',
+        self::REDUCE_MAX => 'REDUCE_MAX',
+        self::REDUCE_SUM => 'REDUCE_SUM',
+        self::REDUCE_STDDEV => 'REDUCE_STDDEV',
+        self::REDUCE_COUNT => 'REDUCE_COUNT',
+        self::REDUCE_COUNT_TRUE => 'REDUCE_COUNT_TRUE',
+        self::REDUCE_COUNT_FALSE => 'REDUCE_COUNT_FALSE',
+        self::REDUCE_FRACTION_TRUE => 'REDUCE_FRACTION_TRUE',
+        self::REDUCE_PERCENTILE_99 => 'REDUCE_PERCENTILE_99',
+        self::REDUCE_PERCENTILE_95 => 'REDUCE_PERCENTILE_95',
+        self::REDUCE_PERCENTILE_50 => 'REDUCE_PERCENTILE_50',
+        self::REDUCE_PERCENTILE_05 => 'REDUCE_PERCENTILE_05',
+    ];
+
+    public static function name($value)
+    {
+        if (!isset(self::$valueToName[$value])) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no name defined for value %s', __CLASS__, $value));
+        }
+        return self::$valueToName[$value];
+    }
+
+
+    public static function value($name)
+    {
+        $const = __CLASS__ . '::' . strtoupper($name);
+        if (!defined($const)) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no value defined for name %s', __CLASS__, $name));
+        }
+        return constant($const);
+    }
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(Reducer::class, \Google\Cloud\Monitoring\V3\Aggregation_Reducer::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy.php
new file mode 100644
index 000000000000..c9b92c00eff9
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy.php
@@ -0,0 +1,805 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A description of the conditions under which some aspect of your system is
+ * considered to be "unhealthy" and the ways to notify people or services about
+ * this state. For an overview of alerting policies, see
+ * [Introduction to Alerting](https://cloud.google.com/monitoring/alerts/).
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.AlertPolicy</code>
+ */
+class AlertPolicy extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Identifier. Required if the policy exists. The resource name for this
+     * policy. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/alertPolicies/[ALERT_POLICY_ID]
+     * `[ALERT_POLICY_ID]` is assigned by Cloud Monitoring when the policy
+     * is created. When calling the
+     * [alertPolicies.create][google.monitoring.v3.AlertPolicyService.CreateAlertPolicy]
+     * method, do not include the `name` field in the alerting policy passed as
+     * part of the request.
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = IDENTIFIER];</code>
+     */
+    protected $name = '';
+    /**
+     * A short name or phrase used to identify the policy in dashboards,
+     * notifications, and incidents. To avoid confusion, don't use the same
+     * display name for multiple policies in the same project. The name is
+     * limited to 512 Unicode characters.
+     * The convention for the display_name of a PrometheusQueryLanguageCondition
+     * is "{rule group name}/{alert name}", where the {rule group name} and
+     * {alert name} should be taken from the corresponding Prometheus
+     * configuration file. This convention is not enforced.
+     * In any case the display_name is not a unique key of the AlertPolicy.
+     *
+     * Generated from protobuf field <code>string display_name = 2;</code>
+     */
+    protected $display_name = '';
+    /**
+     * Documentation that is included with notifications and incidents related to
+     * this policy. Best practice is for the documentation to include information
+     * to help responders understand, mitigate, escalate, and correct the
+     * underlying problems detected by the alerting policy. Notification channels
+     * that have limited capacity might not show this documentation.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Documentation documentation = 13;</code>
+     */
+    protected $documentation = null;
+    /**
+     * User-supplied key/value data to be used for organizing and
+     * identifying the `AlertPolicy` objects.
+     * The field can contain up to 64 entries. Each key and value is limited to
+     * 63 Unicode characters or 128 bytes, whichever is smaller. Labels and
+     * values can contain only lowercase letters, numerals, underscores, and
+     * dashes. Keys must begin with a letter.
+     * Note that Prometheus {alert name} is a
+     * [valid Prometheus label
+     * names](https://prometheus.io/docs/concepts/data_model/#metric-names-and-labels),
+     * whereas Prometheus {rule group} is an unrestricted UTF-8 string.
+     * This means that they cannot be stored as-is in user labels, because
+     * they may contain characters that are not allowed in user-label values.
+     *
+     * Generated from protobuf field <code>map<string, string> user_labels = 16;</code>
+     */
+    private $user_labels;
+    /**
+     * A list of conditions for the policy. The conditions are combined by AND or
+     * OR according to the `combiner` field. If the combined conditions evaluate
+     * to true, then an incident is created. A policy can have from one to six
+     * conditions.
+     * If `condition_time_series_query_language` is present, it must be the only
+     * `condition`.
+     * If `condition_monitoring_query_language` is present, it must be the only
+     * `condition`.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.AlertPolicy.Condition conditions = 12;</code>
+     */
+    private $conditions;
+    /**
+     * How to combine the results of multiple conditions to determine if an
+     * incident should be opened.
+     * If `condition_time_series_query_language` is present, this must be
+     * `COMBINE_UNSPECIFIED`.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.ConditionCombinerType combiner = 6;</code>
+     */
+    protected $combiner = 0;
+    /**
+     * Whether or not the policy is enabled. On write, the default interpretation
+     * if unset is that the policy is enabled. On read, clients should not make
+     * any assumption about the state if it has not been populated. The
+     * field should always be populated on List and Get operations, unless
+     * a field projection has been specified that strips it out.
+     *
+     * Generated from protobuf field <code>.google.protobuf.BoolValue enabled = 17;</code>
+     */
+    protected $enabled = null;
+    /**
+     * Read-only description of how the alerting policy is invalid. This field is
+     * only set when the alerting policy is invalid. An invalid alerting policy
+     * will not generate incidents.
+     *
+     * Generated from protobuf field <code>.google.rpc.Status validity = 18;</code>
+     */
+    protected $validity = null;
+    /**
+     * Identifies the notification channels to which notifications should be sent
+     * when incidents are opened or closed or when new violations occur on
+     * an already opened incident. Each element of this array corresponds to
+     * the `name` field in each of the
+     * [`NotificationChannel`][google.monitoring.v3.NotificationChannel]
+     * objects that are returned from the [`ListNotificationChannels`]
+     * [google.monitoring.v3.NotificationChannelService.ListNotificationChannels]
+     * method. The format of the entries in this field is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/notificationChannels/[CHANNEL_ID]
+     *
+     * Generated from protobuf field <code>repeated string notification_channels = 14;</code>
+     */
+    private $notification_channels;
+    /**
+     * A read-only record of the creation of the alerting policy. If provided
+     * in a call to create or update, this field will be ignored.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.MutationRecord creation_record = 10;</code>
+     */
+    protected $creation_record = null;
+    /**
+     * A read-only record of the most recent change to the alerting policy. If
+     * provided in a call to create or update, this field will be ignored.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.MutationRecord mutation_record = 11;</code>
+     */
+    protected $mutation_record = null;
+    /**
+     * Control over how this alerting policy's notification channels are notified.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.AlertStrategy alert_strategy = 21;</code>
+     */
+    protected $alert_strategy = null;
+    /**
+     * Optional. The severity of an alerting policy indicates how important
+     * incidents generated by that policy are. The severity level will be
+     * displayed on the Incident detail page and in notifications.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Severity severity = 22 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    protected $severity = 0;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Identifier. Required if the policy exists. The resource name for this
+     *           policy. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/alertPolicies/[ALERT_POLICY_ID]
+     *           `[ALERT_POLICY_ID]` is assigned by Cloud Monitoring when the policy
+     *           is created. When calling the
+     *           [alertPolicies.create][google.monitoring.v3.AlertPolicyService.CreateAlertPolicy]
+     *           method, do not include the `name` field in the alerting policy passed as
+     *           part of the request.
+     *     @type string $display_name
+     *           A short name or phrase used to identify the policy in dashboards,
+     *           notifications, and incidents. To avoid confusion, don't use the same
+     *           display name for multiple policies in the same project. The name is
+     *           limited to 512 Unicode characters.
+     *           The convention for the display_name of a PrometheusQueryLanguageCondition
+     *           is "{rule group name}/{alert name}", where the {rule group name} and
+     *           {alert name} should be taken from the corresponding Prometheus
+     *           configuration file. This convention is not enforced.
+     *           In any case the display_name is not a unique key of the AlertPolicy.
+     *     @type \Google\Cloud\Monitoring\V3\AlertPolicy\Documentation $documentation
+     *           Documentation that is included with notifications and incidents related to
+     *           this policy. Best practice is for the documentation to include information
+     *           to help responders understand, mitigate, escalate, and correct the
+     *           underlying problems detected by the alerting policy. Notification channels
+     *           that have limited capacity might not show this documentation.
+     *     @type array|\Google\Protobuf\Internal\MapField $user_labels
+     *           User-supplied key/value data to be used for organizing and
+     *           identifying the `AlertPolicy` objects.
+     *           The field can contain up to 64 entries. Each key and value is limited to
+     *           63 Unicode characters or 128 bytes, whichever is smaller. Labels and
+     *           values can contain only lowercase letters, numerals, underscores, and
+     *           dashes. Keys must begin with a letter.
+     *           Note that Prometheus {alert name} is a
+     *           [valid Prometheus label
+     *           names](https://prometheus.io/docs/concepts/data_model/#metric-names-and-labels),
+     *           whereas Prometheus {rule group} is an unrestricted UTF-8 string.
+     *           This means that they cannot be stored as-is in user labels, because
+     *           they may contain characters that are not allowed in user-label values.
+     *     @type array<\Google\Cloud\Monitoring\V3\AlertPolicy\Condition>|\Google\Protobuf\Internal\RepeatedField $conditions
+     *           A list of conditions for the policy. The conditions are combined by AND or
+     *           OR according to the `combiner` field. If the combined conditions evaluate
+     *           to true, then an incident is created. A policy can have from one to six
+     *           conditions.
+     *           If `condition_time_series_query_language` is present, it must be the only
+     *           `condition`.
+     *           If `condition_monitoring_query_language` is present, it must be the only
+     *           `condition`.
+     *     @type int $combiner
+     *           How to combine the results of multiple conditions to determine if an
+     *           incident should be opened.
+     *           If `condition_time_series_query_language` is present, this must be
+     *           `COMBINE_UNSPECIFIED`.
+     *     @type \Google\Protobuf\BoolValue $enabled
+     *           Whether or not the policy is enabled. On write, the default interpretation
+     *           if unset is that the policy is enabled. On read, clients should not make
+     *           any assumption about the state if it has not been populated. The
+     *           field should always be populated on List and Get operations, unless
+     *           a field projection has been specified that strips it out.
+     *     @type \Google\Rpc\Status $validity
+     *           Read-only description of how the alerting policy is invalid. This field is
+     *           only set when the alerting policy is invalid. An invalid alerting policy
+     *           will not generate incidents.
+     *     @type array<string>|\Google\Protobuf\Internal\RepeatedField $notification_channels
+     *           Identifies the notification channels to which notifications should be sent
+     *           when incidents are opened or closed or when new violations occur on
+     *           an already opened incident. Each element of this array corresponds to
+     *           the `name` field in each of the
+     *           [`NotificationChannel`][google.monitoring.v3.NotificationChannel]
+     *           objects that are returned from the [`ListNotificationChannels`]
+     *           [google.monitoring.v3.NotificationChannelService.ListNotificationChannels]
+     *           method. The format of the entries in this field is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/notificationChannels/[CHANNEL_ID]
+     *     @type \Google\Cloud\Monitoring\V3\MutationRecord $creation_record
+     *           A read-only record of the creation of the alerting policy. If provided
+     *           in a call to create or update, this field will be ignored.
+     *     @type \Google\Cloud\Monitoring\V3\MutationRecord $mutation_record
+     *           A read-only record of the most recent change to the alerting policy. If
+     *           provided in a call to create or update, this field will be ignored.
+     *     @type \Google\Cloud\Monitoring\V3\AlertPolicy\AlertStrategy $alert_strategy
+     *           Control over how this alerting policy's notification channels are notified.
+     *     @type int $severity
+     *           Optional. The severity of an alerting policy indicates how important
+     *           incidents generated by that policy are. The severity level will be
+     *           displayed on the Incident detail page and in notifications.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Alert::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Identifier. Required if the policy exists. The resource name for this
+     * policy. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/alertPolicies/[ALERT_POLICY_ID]
+     * `[ALERT_POLICY_ID]` is assigned by Cloud Monitoring when the policy
+     * is created. When calling the
+     * [alertPolicies.create][google.monitoring.v3.AlertPolicyService.CreateAlertPolicy]
+     * method, do not include the `name` field in the alerting policy passed as
+     * part of the request.
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = IDENTIFIER];</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Identifier. Required if the policy exists. The resource name for this
+     * policy. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/alertPolicies/[ALERT_POLICY_ID]
+     * `[ALERT_POLICY_ID]` is assigned by Cloud Monitoring when the policy
+     * is created. When calling the
+     * [alertPolicies.create][google.monitoring.v3.AlertPolicyService.CreateAlertPolicy]
+     * method, do not include the `name` field in the alerting policy passed as
+     * part of the request.
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = IDENTIFIER];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * A short name or phrase used to identify the policy in dashboards,
+     * notifications, and incidents. To avoid confusion, don't use the same
+     * display name for multiple policies in the same project. The name is
+     * limited to 512 Unicode characters.
+     * The convention for the display_name of a PrometheusQueryLanguageCondition
+     * is "{rule group name}/{alert name}", where the {rule group name} and
+     * {alert name} should be taken from the corresponding Prometheus
+     * configuration file. This convention is not enforced.
+     * In any case the display_name is not a unique key of the AlertPolicy.
+     *
+     * Generated from protobuf field <code>string display_name = 2;</code>
+     * @return string
+     */
+    public function getDisplayName()
+    {
+        return $this->display_name;
+    }
+
+    /**
+     * A short name or phrase used to identify the policy in dashboards,
+     * notifications, and incidents. To avoid confusion, don't use the same
+     * display name for multiple policies in the same project. The name is
+     * limited to 512 Unicode characters.
+     * The convention for the display_name of a PrometheusQueryLanguageCondition
+     * is "{rule group name}/{alert name}", where the {rule group name} and
+     * {alert name} should be taken from the corresponding Prometheus
+     * configuration file. This convention is not enforced.
+     * In any case the display_name is not a unique key of the AlertPolicy.
+     *
+     * Generated from protobuf field <code>string display_name = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setDisplayName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->display_name = $var;
+
+        return $this;
+    }
+
+    /**
+     * Documentation that is included with notifications and incidents related to
+     * this policy. Best practice is for the documentation to include information
+     * to help responders understand, mitigate, escalate, and correct the
+     * underlying problems detected by the alerting policy. Notification channels
+     * that have limited capacity might not show this documentation.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Documentation documentation = 13;</code>
+     * @return \Google\Cloud\Monitoring\V3\AlertPolicy\Documentation|null
+     */
+    public function getDocumentation()
+    {
+        return $this->documentation;
+    }
+
+    public function hasDocumentation()
+    {
+        return isset($this->documentation);
+    }
+
+    public function clearDocumentation()
+    {
+        unset($this->documentation);
+    }
+
+    /**
+     * Documentation that is included with notifications and incidents related to
+     * this policy. Best practice is for the documentation to include information
+     * to help responders understand, mitigate, escalate, and correct the
+     * underlying problems detected by the alerting policy. Notification channels
+     * that have limited capacity might not show this documentation.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Documentation documentation = 13;</code>
+     * @param \Google\Cloud\Monitoring\V3\AlertPolicy\Documentation $var
+     * @return $this
+     */
+    public function setDocumentation($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\AlertPolicy\Documentation::class);
+        $this->documentation = $var;
+
+        return $this;
+    }
+
+    /**
+     * User-supplied key/value data to be used for organizing and
+     * identifying the `AlertPolicy` objects.
+     * The field can contain up to 64 entries. Each key and value is limited to
+     * 63 Unicode characters or 128 bytes, whichever is smaller. Labels and
+     * values can contain only lowercase letters, numerals, underscores, and
+     * dashes. Keys must begin with a letter.
+     * Note that Prometheus {alert name} is a
+     * [valid Prometheus label
+     * names](https://prometheus.io/docs/concepts/data_model/#metric-names-and-labels),
+     * whereas Prometheus {rule group} is an unrestricted UTF-8 string.
+     * This means that they cannot be stored as-is in user labels, because
+     * they may contain characters that are not allowed in user-label values.
+     *
+     * Generated from protobuf field <code>map<string, string> user_labels = 16;</code>
+     * @return \Google\Protobuf\Internal\MapField
+     */
+    public function getUserLabels()
+    {
+        return $this->user_labels;
+    }
+
+    /**
+     * User-supplied key/value data to be used for organizing and
+     * identifying the `AlertPolicy` objects.
+     * The field can contain up to 64 entries. Each key and value is limited to
+     * 63 Unicode characters or 128 bytes, whichever is smaller. Labels and
+     * values can contain only lowercase letters, numerals, underscores, and
+     * dashes. Keys must begin with a letter.
+     * Note that Prometheus {alert name} is a
+     * [valid Prometheus label
+     * names](https://prometheus.io/docs/concepts/data_model/#metric-names-and-labels),
+     * whereas Prometheus {rule group} is an unrestricted UTF-8 string.
+     * This means that they cannot be stored as-is in user labels, because
+     * they may contain characters that are not allowed in user-label values.
+     *
+     * Generated from protobuf field <code>map<string, string> user_labels = 16;</code>
+     * @param array|\Google\Protobuf\Internal\MapField $var
+     * @return $this
+     */
+    public function setUserLabels($var)
+    {
+        $arr = GPBUtil::checkMapField($var, \Google\Protobuf\Internal\GPBType::STRING, \Google\Protobuf\Internal\GPBType::STRING);
+        $this->user_labels = $arr;
+
+        return $this;
+    }
+
+    /**
+     * A list of conditions for the policy. The conditions are combined by AND or
+     * OR according to the `combiner` field. If the combined conditions evaluate
+     * to true, then an incident is created. A policy can have from one to six
+     * conditions.
+     * If `condition_time_series_query_language` is present, it must be the only
+     * `condition`.
+     * If `condition_monitoring_query_language` is present, it must be the only
+     * `condition`.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.AlertPolicy.Condition conditions = 12;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getConditions()
+    {
+        return $this->conditions;
+    }
+
+    /**
+     * A list of conditions for the policy. The conditions are combined by AND or
+     * OR according to the `combiner` field. If the combined conditions evaluate
+     * to true, then an incident is created. A policy can have from one to six
+     * conditions.
+     * If `condition_time_series_query_language` is present, it must be the only
+     * `condition`.
+     * If `condition_monitoring_query_language` is present, it must be the only
+     * `condition`.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.AlertPolicy.Condition conditions = 12;</code>
+     * @param array<\Google\Cloud\Monitoring\V3\AlertPolicy\Condition>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setConditions($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\AlertPolicy\Condition::class);
+        $this->conditions = $arr;
+
+        return $this;
+    }
+
+    /**
+     * How to combine the results of multiple conditions to determine if an
+     * incident should be opened.
+     * If `condition_time_series_query_language` is present, this must be
+     * `COMBINE_UNSPECIFIED`.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.ConditionCombinerType combiner = 6;</code>
+     * @return int
+     */
+    public function getCombiner()
+    {
+        return $this->combiner;
+    }
+
+    /**
+     * How to combine the results of multiple conditions to determine if an
+     * incident should be opened.
+     * If `condition_time_series_query_language` is present, this must be
+     * `COMBINE_UNSPECIFIED`.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.ConditionCombinerType combiner = 6;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setCombiner($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Cloud\Monitoring\V3\AlertPolicy\ConditionCombinerType::class);
+        $this->combiner = $var;
+
+        return $this;
+    }
+
+    /**
+     * Whether or not the policy is enabled. On write, the default interpretation
+     * if unset is that the policy is enabled. On read, clients should not make
+     * any assumption about the state if it has not been populated. The
+     * field should always be populated on List and Get operations, unless
+     * a field projection has been specified that strips it out.
+     *
+     * Generated from protobuf field <code>.google.protobuf.BoolValue enabled = 17;</code>
+     * @return \Google\Protobuf\BoolValue|null
+     */
+    public function getEnabled()
+    {
+        return $this->enabled;
+    }
+
+    public function hasEnabled()
+    {
+        return isset($this->enabled);
+    }
+
+    public function clearEnabled()
+    {
+        unset($this->enabled);
+    }
+
+    /**
+     * Returns the unboxed value from <code>getEnabled()</code>
+
+     * Whether or not the policy is enabled. On write, the default interpretation
+     * if unset is that the policy is enabled. On read, clients should not make
+     * any assumption about the state if it has not been populated. The
+     * field should always be populated on List and Get operations, unless
+     * a field projection has been specified that strips it out.
+     *
+     * Generated from protobuf field <code>.google.protobuf.BoolValue enabled = 17;</code>
+     * @return bool|null
+     */
+    public function getEnabledUnwrapped()
+    {
+        return $this->readWrapperValue("enabled");
+    }
+
+    /**
+     * Whether or not the policy is enabled. On write, the default interpretation
+     * if unset is that the policy is enabled. On read, clients should not make
+     * any assumption about the state if it has not been populated. The
+     * field should always be populated on List and Get operations, unless
+     * a field projection has been specified that strips it out.
+     *
+     * Generated from protobuf field <code>.google.protobuf.BoolValue enabled = 17;</code>
+     * @param \Google\Protobuf\BoolValue $var
+     * @return $this
+     */
+    public function setEnabled($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\BoolValue::class);
+        $this->enabled = $var;
+
+        return $this;
+    }
+
+    /**
+     * Sets the field by wrapping a primitive type in a Google\Protobuf\BoolValue object.
+
+     * Whether or not the policy is enabled. On write, the default interpretation
+     * if unset is that the policy is enabled. On read, clients should not make
+     * any assumption about the state if it has not been populated. The
+     * field should always be populated on List and Get operations, unless
+     * a field projection has been specified that strips it out.
+     *
+     * Generated from protobuf field <code>.google.protobuf.BoolValue enabled = 17;</code>
+     * @param bool|null $var
+     * @return $this
+     */
+    public function setEnabledUnwrapped($var)
+    {
+        $this->writeWrapperValue("enabled", $var);
+        return $this;}
+
+    /**
+     * Read-only description of how the alerting policy is invalid. This field is
+     * only set when the alerting policy is invalid. An invalid alerting policy
+     * will not generate incidents.
+     *
+     * Generated from protobuf field <code>.google.rpc.Status validity = 18;</code>
+     * @return \Google\Rpc\Status|null
+     */
+    public function getValidity()
+    {
+        return $this->validity;
+    }
+
+    public function hasValidity()
+    {
+        return isset($this->validity);
+    }
+
+    public function clearValidity()
+    {
+        unset($this->validity);
+    }
+
+    /**
+     * Read-only description of how the alerting policy is invalid. This field is
+     * only set when the alerting policy is invalid. An invalid alerting policy
+     * will not generate incidents.
+     *
+     * Generated from protobuf field <code>.google.rpc.Status validity = 18;</code>
+     * @param \Google\Rpc\Status $var
+     * @return $this
+     */
+    public function setValidity($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Rpc\Status::class);
+        $this->validity = $var;
+
+        return $this;
+    }
+
+    /**
+     * Identifies the notification channels to which notifications should be sent
+     * when incidents are opened or closed or when new violations occur on
+     * an already opened incident. Each element of this array corresponds to
+     * the `name` field in each of the
+     * [`NotificationChannel`][google.monitoring.v3.NotificationChannel]
+     * objects that are returned from the [`ListNotificationChannels`]
+     * [google.monitoring.v3.NotificationChannelService.ListNotificationChannels]
+     * method. The format of the entries in this field is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/notificationChannels/[CHANNEL_ID]
+     *
+     * Generated from protobuf field <code>repeated string notification_channels = 14;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getNotificationChannels()
+    {
+        return $this->notification_channels;
+    }
+
+    /**
+     * Identifies the notification channels to which notifications should be sent
+     * when incidents are opened or closed or when new violations occur on
+     * an already opened incident. Each element of this array corresponds to
+     * the `name` field in each of the
+     * [`NotificationChannel`][google.monitoring.v3.NotificationChannel]
+     * objects that are returned from the [`ListNotificationChannels`]
+     * [google.monitoring.v3.NotificationChannelService.ListNotificationChannels]
+     * method. The format of the entries in this field is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/notificationChannels/[CHANNEL_ID]
+     *
+     * Generated from protobuf field <code>repeated string notification_channels = 14;</code>
+     * @param array<string>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setNotificationChannels($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::STRING);
+        $this->notification_channels = $arr;
+
+        return $this;
+    }
+
+    /**
+     * A read-only record of the creation of the alerting policy. If provided
+     * in a call to create or update, this field will be ignored.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.MutationRecord creation_record = 10;</code>
+     * @return \Google\Cloud\Monitoring\V3\MutationRecord|null
+     */
+    public function getCreationRecord()
+    {
+        return $this->creation_record;
+    }
+
+    public function hasCreationRecord()
+    {
+        return isset($this->creation_record);
+    }
+
+    public function clearCreationRecord()
+    {
+        unset($this->creation_record);
+    }
+
+    /**
+     * A read-only record of the creation of the alerting policy. If provided
+     * in a call to create or update, this field will be ignored.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.MutationRecord creation_record = 10;</code>
+     * @param \Google\Cloud\Monitoring\V3\MutationRecord $var
+     * @return $this
+     */
+    public function setCreationRecord($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\MutationRecord::class);
+        $this->creation_record = $var;
+
+        return $this;
+    }
+
+    /**
+     * A read-only record of the most recent change to the alerting policy. If
+     * provided in a call to create or update, this field will be ignored.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.MutationRecord mutation_record = 11;</code>
+     * @return \Google\Cloud\Monitoring\V3\MutationRecord|null
+     */
+    public function getMutationRecord()
+    {
+        return $this->mutation_record;
+    }
+
+    public function hasMutationRecord()
+    {
+        return isset($this->mutation_record);
+    }
+
+    public function clearMutationRecord()
+    {
+        unset($this->mutation_record);
+    }
+
+    /**
+     * A read-only record of the most recent change to the alerting policy. If
+     * provided in a call to create or update, this field will be ignored.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.MutationRecord mutation_record = 11;</code>
+     * @param \Google\Cloud\Monitoring\V3\MutationRecord $var
+     * @return $this
+     */
+    public function setMutationRecord($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\MutationRecord::class);
+        $this->mutation_record = $var;
+
+        return $this;
+    }
+
+    /**
+     * Control over how this alerting policy's notification channels are notified.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.AlertStrategy alert_strategy = 21;</code>
+     * @return \Google\Cloud\Monitoring\V3\AlertPolicy\AlertStrategy|null
+     */
+    public function getAlertStrategy()
+    {
+        return $this->alert_strategy;
+    }
+
+    public function hasAlertStrategy()
+    {
+        return isset($this->alert_strategy);
+    }
+
+    public function clearAlertStrategy()
+    {
+        unset($this->alert_strategy);
+    }
+
+    /**
+     * Control over how this alerting policy's notification channels are notified.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.AlertStrategy alert_strategy = 21;</code>
+     * @param \Google\Cloud\Monitoring\V3\AlertPolicy\AlertStrategy $var
+     * @return $this
+     */
+    public function setAlertStrategy($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\AlertPolicy\AlertStrategy::class);
+        $this->alert_strategy = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. The severity of an alerting policy indicates how important
+     * incidents generated by that policy are. The severity level will be
+     * displayed on the Incident detail page and in notifications.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Severity severity = 22 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return int
+     */
+    public function getSeverity()
+    {
+        return $this->severity;
+    }
+
+    /**
+     * Optional. The severity of an alerting policy indicates how important
+     * incidents generated by that policy are. The severity level will be
+     * displayed on the Incident detail page and in notifications.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Severity severity = 22 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setSeverity($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Cloud\Monitoring\V3\AlertPolicy\Severity::class);
+        $this->severity = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/AlertStrategy.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/AlertStrategy.php
new file mode 100644
index 000000000000..c8145f8e85af
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/AlertStrategy.php
@@ -0,0 +1,217 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert.proto
+
+namespace Google\Cloud\Monitoring\V3\AlertPolicy;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Control over how the notification channels in `notification_channels`
+ * are notified when this alert fires.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.AlertPolicy.AlertStrategy</code>
+ */
+class AlertStrategy extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required for log-based alerting policies, i.e. policies with a `LogMatch`
+     * condition.
+     * This limit is not implemented for alerting policies that do not have
+     * a LogMatch condition.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.AlertStrategy.NotificationRateLimit notification_rate_limit = 1;</code>
+     */
+    protected $notification_rate_limit = null;
+    /**
+     * For log-based alert policies, the notification prompts is always
+     * [OPENED]. For non log-based alert policies, the notification prompts can
+     * be [OPENED] or [OPENED, CLOSED].
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.AlertPolicy.AlertStrategy.NotificationPrompt notification_prompts = 2;</code>
+     */
+    private $notification_prompts;
+    /**
+     * If an alerting policy that was active has no data for this long, any open
+     * incidents will close
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration auto_close = 3;</code>
+     */
+    protected $auto_close = null;
+    /**
+     * Control how notifications will be sent out, on a per-channel basis.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.AlertPolicy.AlertStrategy.NotificationChannelStrategy notification_channel_strategy = 4;</code>
+     */
+    private $notification_channel_strategy;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type \Google\Cloud\Monitoring\V3\AlertPolicy\AlertStrategy\NotificationRateLimit $notification_rate_limit
+     *           Required for log-based alerting policies, i.e. policies with a `LogMatch`
+     *           condition.
+     *           This limit is not implemented for alerting policies that do not have
+     *           a LogMatch condition.
+     *     @type array<int>|\Google\Protobuf\Internal\RepeatedField $notification_prompts
+     *           For log-based alert policies, the notification prompts is always
+     *           [OPENED]. For non log-based alert policies, the notification prompts can
+     *           be [OPENED] or [OPENED, CLOSED].
+     *     @type \Google\Protobuf\Duration $auto_close
+     *           If an alerting policy that was active has no data for this long, any open
+     *           incidents will close
+     *     @type array<\Google\Cloud\Monitoring\V3\AlertPolicy\AlertStrategy\NotificationChannelStrategy>|\Google\Protobuf\Internal\RepeatedField $notification_channel_strategy
+     *           Control how notifications will be sent out, on a per-channel basis.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Alert::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required for log-based alerting policies, i.e. policies with a `LogMatch`
+     * condition.
+     * This limit is not implemented for alerting policies that do not have
+     * a LogMatch condition.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.AlertStrategy.NotificationRateLimit notification_rate_limit = 1;</code>
+     * @return \Google\Cloud\Monitoring\V3\AlertPolicy\AlertStrategy\NotificationRateLimit|null
+     */
+    public function getNotificationRateLimit()
+    {
+        return $this->notification_rate_limit;
+    }
+
+    public function hasNotificationRateLimit()
+    {
+        return isset($this->notification_rate_limit);
+    }
+
+    public function clearNotificationRateLimit()
+    {
+        unset($this->notification_rate_limit);
+    }
+
+    /**
+     * Required for log-based alerting policies, i.e. policies with a `LogMatch`
+     * condition.
+     * This limit is not implemented for alerting policies that do not have
+     * a LogMatch condition.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.AlertStrategy.NotificationRateLimit notification_rate_limit = 1;</code>
+     * @param \Google\Cloud\Monitoring\V3\AlertPolicy\AlertStrategy\NotificationRateLimit $var
+     * @return $this
+     */
+    public function setNotificationRateLimit($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\AlertPolicy\AlertStrategy\NotificationRateLimit::class);
+        $this->notification_rate_limit = $var;
+
+        return $this;
+    }
+
+    /**
+     * For log-based alert policies, the notification prompts is always
+     * [OPENED]. For non log-based alert policies, the notification prompts can
+     * be [OPENED] or [OPENED, CLOSED].
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.AlertPolicy.AlertStrategy.NotificationPrompt notification_prompts = 2;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getNotificationPrompts()
+    {
+        return $this->notification_prompts;
+    }
+
+    /**
+     * For log-based alert policies, the notification prompts is always
+     * [OPENED]. For non log-based alert policies, the notification prompts can
+     * be [OPENED] or [OPENED, CLOSED].
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.AlertPolicy.AlertStrategy.NotificationPrompt notification_prompts = 2;</code>
+     * @param array<int>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setNotificationPrompts($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::ENUM, \Google\Cloud\Monitoring\V3\AlertPolicy\AlertStrategy\NotificationPrompt::class);
+        $this->notification_prompts = $arr;
+
+        return $this;
+    }
+
+    /**
+     * If an alerting policy that was active has no data for this long, any open
+     * incidents will close
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration auto_close = 3;</code>
+     * @return \Google\Protobuf\Duration|null
+     */
+    public function getAutoClose()
+    {
+        return $this->auto_close;
+    }
+
+    public function hasAutoClose()
+    {
+        return isset($this->auto_close);
+    }
+
+    public function clearAutoClose()
+    {
+        unset($this->auto_close);
+    }
+
+    /**
+     * If an alerting policy that was active has no data for this long, any open
+     * incidents will close
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration auto_close = 3;</code>
+     * @param \Google\Protobuf\Duration $var
+     * @return $this
+     */
+    public function setAutoClose($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\Duration::class);
+        $this->auto_close = $var;
+
+        return $this;
+    }
+
+    /**
+     * Control how notifications will be sent out, on a per-channel basis.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.AlertPolicy.AlertStrategy.NotificationChannelStrategy notification_channel_strategy = 4;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getNotificationChannelStrategy()
+    {
+        return $this->notification_channel_strategy;
+    }
+
+    /**
+     * Control how notifications will be sent out, on a per-channel basis.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.AlertPolicy.AlertStrategy.NotificationChannelStrategy notification_channel_strategy = 4;</code>
+     * @param array<\Google\Cloud\Monitoring\V3\AlertPolicy\AlertStrategy\NotificationChannelStrategy>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setNotificationChannelStrategy($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\AlertPolicy\AlertStrategy\NotificationChannelStrategy::class);
+        $this->notification_channel_strategy = $arr;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(AlertStrategy::class, \Google\Cloud\Monitoring\V3\AlertPolicy_AlertStrategy::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/AlertStrategy/NotificationChannelStrategy.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/AlertStrategy/NotificationChannelStrategy.php
new file mode 100644
index 000000000000..3fb4be795892
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/AlertStrategy/NotificationChannelStrategy.php
@@ -0,0 +1,139 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert.proto
+
+namespace Google\Cloud\Monitoring\V3\AlertPolicy\AlertStrategy;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Control over how the notification channels in `notification_channels`
+ * are notified when this alert fires, on a per-channel basis.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.AlertPolicy.AlertStrategy.NotificationChannelStrategy</code>
+ */
+class NotificationChannelStrategy extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The full REST resource name for the notification channels that these
+     * settings apply to. Each of these correspond to the name field in one
+     * of the NotificationChannel objects referenced in the
+     * notification_channels field of this AlertPolicy.
+     * The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/notificationChannels/[CHANNEL_ID]
+     *
+     * Generated from protobuf field <code>repeated string notification_channel_names = 1;</code>
+     */
+    private $notification_channel_names;
+    /**
+     * The frequency at which to send reminder notifications for open
+     * incidents.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration renotify_interval = 2;</code>
+     */
+    protected $renotify_interval = null;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type array<string>|\Google\Protobuf\Internal\RepeatedField $notification_channel_names
+     *           The full REST resource name for the notification channels that these
+     *           settings apply to. Each of these correspond to the name field in one
+     *           of the NotificationChannel objects referenced in the
+     *           notification_channels field of this AlertPolicy.
+     *           The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/notificationChannels/[CHANNEL_ID]
+     *     @type \Google\Protobuf\Duration $renotify_interval
+     *           The frequency at which to send reminder notifications for open
+     *           incidents.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Alert::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The full REST resource name for the notification channels that these
+     * settings apply to. Each of these correspond to the name field in one
+     * of the NotificationChannel objects referenced in the
+     * notification_channels field of this AlertPolicy.
+     * The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/notificationChannels/[CHANNEL_ID]
+     *
+     * Generated from protobuf field <code>repeated string notification_channel_names = 1;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getNotificationChannelNames()
+    {
+        return $this->notification_channel_names;
+    }
+
+    /**
+     * The full REST resource name for the notification channels that these
+     * settings apply to. Each of these correspond to the name field in one
+     * of the NotificationChannel objects referenced in the
+     * notification_channels field of this AlertPolicy.
+     * The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/notificationChannels/[CHANNEL_ID]
+     *
+     * Generated from protobuf field <code>repeated string notification_channel_names = 1;</code>
+     * @param array<string>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setNotificationChannelNames($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::STRING);
+        $this->notification_channel_names = $arr;
+
+        return $this;
+    }
+
+    /**
+     * The frequency at which to send reminder notifications for open
+     * incidents.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration renotify_interval = 2;</code>
+     * @return \Google\Protobuf\Duration|null
+     */
+    public function getRenotifyInterval()
+    {
+        return $this->renotify_interval;
+    }
+
+    public function hasRenotifyInterval()
+    {
+        return isset($this->renotify_interval);
+    }
+
+    public function clearRenotifyInterval()
+    {
+        unset($this->renotify_interval);
+    }
+
+    /**
+     * The frequency at which to send reminder notifications for open
+     * incidents.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration renotify_interval = 2;</code>
+     * @param \Google\Protobuf\Duration $var
+     * @return $this
+     */
+    public function setRenotifyInterval($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\Duration::class);
+        $this->renotify_interval = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(NotificationChannelStrategy::class, \Google\Cloud\Monitoring\V3\AlertPolicy_AlertStrategy_NotificationChannelStrategy::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/AlertStrategy/NotificationPrompt.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/AlertStrategy/NotificationPrompt.php
new file mode 100644
index 000000000000..c5cceba508af
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/AlertStrategy/NotificationPrompt.php
@@ -0,0 +1,64 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert.proto
+
+namespace Google\Cloud\Monitoring\V3\AlertPolicy\AlertStrategy;
+
+use UnexpectedValueException;
+
+/**
+ * Control when notifications will be sent out.
+ *
+ * Protobuf type <code>google.monitoring.v3.AlertPolicy.AlertStrategy.NotificationPrompt</code>
+ */
+class NotificationPrompt
+{
+    /**
+     * No strategy specified. Treated as error.
+     *
+     * Generated from protobuf enum <code>NOTIFICATION_PROMPT_UNSPECIFIED = 0;</code>
+     */
+    const NOTIFICATION_PROMPT_UNSPECIFIED = 0;
+    /**
+     * Notify when an incident is opened.
+     *
+     * Generated from protobuf enum <code>OPENED = 1;</code>
+     */
+    const OPENED = 1;
+    /**
+     * Notify when an incident is closed.
+     *
+     * Generated from protobuf enum <code>CLOSED = 3;</code>
+     */
+    const CLOSED = 3;
+
+    private static $valueToName = [
+        self::NOTIFICATION_PROMPT_UNSPECIFIED => 'NOTIFICATION_PROMPT_UNSPECIFIED',
+        self::OPENED => 'OPENED',
+        self::CLOSED => 'CLOSED',
+    ];
+
+    public static function name($value)
+    {
+        if (!isset(self::$valueToName[$value])) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no name defined for value %s', __CLASS__, $value));
+        }
+        return self::$valueToName[$value];
+    }
+
+
+    public static function value($name)
+    {
+        $const = __CLASS__ . '::' . strtoupper($name);
+        if (!defined($const)) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no value defined for name %s', __CLASS__, $name));
+        }
+        return constant($const);
+    }
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(NotificationPrompt::class, \Google\Cloud\Monitoring\V3\AlertPolicy_AlertStrategy_NotificationPrompt::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/AlertStrategy/NotificationRateLimit.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/AlertStrategy/NotificationRateLimit.php
new file mode 100644
index 000000000000..24928f618e19
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/AlertStrategy/NotificationRateLimit.php
@@ -0,0 +1,81 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert.proto
+
+namespace Google\Cloud\Monitoring\V3\AlertPolicy\AlertStrategy;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Control over the rate of notifications sent to this alerting policy's
+ * notification channels.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.AlertPolicy.AlertStrategy.NotificationRateLimit</code>
+ */
+class NotificationRateLimit extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Not more than one notification per `period`.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration period = 1;</code>
+     */
+    protected $period = null;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type \Google\Protobuf\Duration $period
+     *           Not more than one notification per `period`.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Alert::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Not more than one notification per `period`.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration period = 1;</code>
+     * @return \Google\Protobuf\Duration|null
+     */
+    public function getPeriod()
+    {
+        return $this->period;
+    }
+
+    public function hasPeriod()
+    {
+        return isset($this->period);
+    }
+
+    public function clearPeriod()
+    {
+        unset($this->period);
+    }
+
+    /**
+     * Not more than one notification per `period`.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration period = 1;</code>
+     * @param \Google\Protobuf\Duration $var
+     * @return $this
+     */
+    public function setPeriod($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\Duration::class);
+        $this->period = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(NotificationRateLimit::class, \Google\Cloud\Monitoring\V3\AlertPolicy_AlertStrategy_NotificationRateLimit::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition.php
new file mode 100644
index 000000000000..424c8a6efb04
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition.php
@@ -0,0 +1,406 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert.proto
+
+namespace Google\Cloud\Monitoring\V3\AlertPolicy;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A condition is a true/false test that determines when an alerting policy
+ * should open an incident. If a condition evaluates to true, it signifies
+ * that something is wrong.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.AlertPolicy.Condition</code>
+ */
+class Condition extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required if the condition exists. The unique resource name for this
+     * condition. Its format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/alertPolicies/[POLICY_ID]/conditions/[CONDITION_ID]
+     * `[CONDITION_ID]` is assigned by Cloud Monitoring when the
+     * condition is created as part of a new or updated alerting policy.
+     * When calling the
+     * [alertPolicies.create][google.monitoring.v3.AlertPolicyService.CreateAlertPolicy]
+     * method, do not include the `name` field in the conditions of the
+     * requested alerting policy. Cloud Monitoring creates the
+     * condition identifiers and includes them in the new policy.
+     * When calling the
+     * [alertPolicies.update][google.monitoring.v3.AlertPolicyService.UpdateAlertPolicy]
+     * method to update a policy, including a condition `name` causes the
+     * existing condition to be updated. Conditions without names are added to
+     * the updated policy. Existing conditions are deleted if they are not
+     * updated.
+     * Best practice is to preserve `[CONDITION_ID]` if you make only small
+     * changes, such as those to condition thresholds, durations, or trigger
+     * values.  Otherwise, treat the change as a new condition and let the
+     * existing condition be deleted.
+     *
+     * Generated from protobuf field <code>string name = 12;</code>
+     */
+    protected $name = '';
+    /**
+     * A short name or phrase used to identify the condition in dashboards,
+     * notifications, and incidents. To avoid confusion, don't use the same
+     * display name for multiple conditions in the same policy.
+     *
+     * Generated from protobuf field <code>string display_name = 6;</code>
+     */
+    protected $display_name = '';
+    protected $condition;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required if the condition exists. The unique resource name for this
+     *           condition. Its format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/alertPolicies/[POLICY_ID]/conditions/[CONDITION_ID]
+     *           `[CONDITION_ID]` is assigned by Cloud Monitoring when the
+     *           condition is created as part of a new or updated alerting policy.
+     *           When calling the
+     *           [alertPolicies.create][google.monitoring.v3.AlertPolicyService.CreateAlertPolicy]
+     *           method, do not include the `name` field in the conditions of the
+     *           requested alerting policy. Cloud Monitoring creates the
+     *           condition identifiers and includes them in the new policy.
+     *           When calling the
+     *           [alertPolicies.update][google.monitoring.v3.AlertPolicyService.UpdateAlertPolicy]
+     *           method to update a policy, including a condition `name` causes the
+     *           existing condition to be updated. Conditions without names are added to
+     *           the updated policy. Existing conditions are deleted if they are not
+     *           updated.
+     *           Best practice is to preserve `[CONDITION_ID]` if you make only small
+     *           changes, such as those to condition thresholds, durations, or trigger
+     *           values.  Otherwise, treat the change as a new condition and let the
+     *           existing condition be deleted.
+     *     @type string $display_name
+     *           A short name or phrase used to identify the condition in dashboards,
+     *           notifications, and incidents. To avoid confusion, don't use the same
+     *           display name for multiple conditions in the same policy.
+     *     @type \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\MetricThreshold $condition_threshold
+     *           A condition that compares a time series against a threshold.
+     *     @type \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\MetricAbsence $condition_absent
+     *           A condition that checks that a time series continues to
+     *           receive new data points.
+     *     @type \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\LogMatch $condition_matched_log
+     *           A condition that checks for log messages matching given constraints. If
+     *           set, no other conditions can be present.
+     *     @type \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\MonitoringQueryLanguageCondition $condition_monitoring_query_language
+     *           A condition that uses the Monitoring Query Language to define
+     *           alerts.
+     *     @type \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\PrometheusQueryLanguageCondition $condition_prometheus_query_language
+     *           A condition that uses the Prometheus query language to define alerts.
+     *     @type \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition $condition_sql
+     *           A condition that periodically evaluates a SQL query result.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Alert::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required if the condition exists. The unique resource name for this
+     * condition. Its format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/alertPolicies/[POLICY_ID]/conditions/[CONDITION_ID]
+     * `[CONDITION_ID]` is assigned by Cloud Monitoring when the
+     * condition is created as part of a new or updated alerting policy.
+     * When calling the
+     * [alertPolicies.create][google.monitoring.v3.AlertPolicyService.CreateAlertPolicy]
+     * method, do not include the `name` field in the conditions of the
+     * requested alerting policy. Cloud Monitoring creates the
+     * condition identifiers and includes them in the new policy.
+     * When calling the
+     * [alertPolicies.update][google.monitoring.v3.AlertPolicyService.UpdateAlertPolicy]
+     * method to update a policy, including a condition `name` causes the
+     * existing condition to be updated. Conditions without names are added to
+     * the updated policy. Existing conditions are deleted if they are not
+     * updated.
+     * Best practice is to preserve `[CONDITION_ID]` if you make only small
+     * changes, such as those to condition thresholds, durations, or trigger
+     * values.  Otherwise, treat the change as a new condition and let the
+     * existing condition be deleted.
+     *
+     * Generated from protobuf field <code>string name = 12;</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required if the condition exists. The unique resource name for this
+     * condition. Its format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/alertPolicies/[POLICY_ID]/conditions/[CONDITION_ID]
+     * `[CONDITION_ID]` is assigned by Cloud Monitoring when the
+     * condition is created as part of a new or updated alerting policy.
+     * When calling the
+     * [alertPolicies.create][google.monitoring.v3.AlertPolicyService.CreateAlertPolicy]
+     * method, do not include the `name` field in the conditions of the
+     * requested alerting policy. Cloud Monitoring creates the
+     * condition identifiers and includes them in the new policy.
+     * When calling the
+     * [alertPolicies.update][google.monitoring.v3.AlertPolicyService.UpdateAlertPolicy]
+     * method to update a policy, including a condition `name` causes the
+     * existing condition to be updated. Conditions without names are added to
+     * the updated policy. Existing conditions are deleted if they are not
+     * updated.
+     * Best practice is to preserve `[CONDITION_ID]` if you make only small
+     * changes, such as those to condition thresholds, durations, or trigger
+     * values.  Otherwise, treat the change as a new condition and let the
+     * existing condition be deleted.
+     *
+     * Generated from protobuf field <code>string name = 12;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * A short name or phrase used to identify the condition in dashboards,
+     * notifications, and incidents. To avoid confusion, don't use the same
+     * display name for multiple conditions in the same policy.
+     *
+     * Generated from protobuf field <code>string display_name = 6;</code>
+     * @return string
+     */
+    public function getDisplayName()
+    {
+        return $this->display_name;
+    }
+
+    /**
+     * A short name or phrase used to identify the condition in dashboards,
+     * notifications, and incidents. To avoid confusion, don't use the same
+     * display name for multiple conditions in the same policy.
+     *
+     * Generated from protobuf field <code>string display_name = 6;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setDisplayName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->display_name = $var;
+
+        return $this;
+    }
+
+    /**
+     * A condition that compares a time series against a threshold.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.MetricThreshold condition_threshold = 1;</code>
+     * @return \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\MetricThreshold|null
+     */
+    public function getConditionThreshold()
+    {
+        return $this->readOneof(1);
+    }
+
+    public function hasConditionThreshold()
+    {
+        return $this->hasOneof(1);
+    }
+
+    /**
+     * A condition that compares a time series against a threshold.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.MetricThreshold condition_threshold = 1;</code>
+     * @param \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\MetricThreshold $var
+     * @return $this
+     */
+    public function setConditionThreshold($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\MetricThreshold::class);
+        $this->writeOneof(1, $var);
+
+        return $this;
+    }
+
+    /**
+     * A condition that checks that a time series continues to
+     * receive new data points.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.MetricAbsence condition_absent = 2;</code>
+     * @return \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\MetricAbsence|null
+     */
+    public function getConditionAbsent()
+    {
+        return $this->readOneof(2);
+    }
+
+    public function hasConditionAbsent()
+    {
+        return $this->hasOneof(2);
+    }
+
+    /**
+     * A condition that checks that a time series continues to
+     * receive new data points.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.MetricAbsence condition_absent = 2;</code>
+     * @param \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\MetricAbsence $var
+     * @return $this
+     */
+    public function setConditionAbsent($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\MetricAbsence::class);
+        $this->writeOneof(2, $var);
+
+        return $this;
+    }
+
+    /**
+     * A condition that checks for log messages matching given constraints. If
+     * set, no other conditions can be present.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.LogMatch condition_matched_log = 20;</code>
+     * @return \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\LogMatch|null
+     */
+    public function getConditionMatchedLog()
+    {
+        return $this->readOneof(20);
+    }
+
+    public function hasConditionMatchedLog()
+    {
+        return $this->hasOneof(20);
+    }
+
+    /**
+     * A condition that checks for log messages matching given constraints. If
+     * set, no other conditions can be present.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.LogMatch condition_matched_log = 20;</code>
+     * @param \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\LogMatch $var
+     * @return $this
+     */
+    public function setConditionMatchedLog($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\LogMatch::class);
+        $this->writeOneof(20, $var);
+
+        return $this;
+    }
+
+    /**
+     * A condition that uses the Monitoring Query Language to define
+     * alerts.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.MonitoringQueryLanguageCondition condition_monitoring_query_language = 19;</code>
+     * @return \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\MonitoringQueryLanguageCondition|null
+     */
+    public function getConditionMonitoringQueryLanguage()
+    {
+        return $this->readOneof(19);
+    }
+
+    public function hasConditionMonitoringQueryLanguage()
+    {
+        return $this->hasOneof(19);
+    }
+
+    /**
+     * A condition that uses the Monitoring Query Language to define
+     * alerts.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.MonitoringQueryLanguageCondition condition_monitoring_query_language = 19;</code>
+     * @param \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\MonitoringQueryLanguageCondition $var
+     * @return $this
+     */
+    public function setConditionMonitoringQueryLanguage($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\MonitoringQueryLanguageCondition::class);
+        $this->writeOneof(19, $var);
+
+        return $this;
+    }
+
+    /**
+     * A condition that uses the Prometheus query language to define alerts.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.PrometheusQueryLanguageCondition condition_prometheus_query_language = 21;</code>
+     * @return \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\PrometheusQueryLanguageCondition|null
+     */
+    public function getConditionPrometheusQueryLanguage()
+    {
+        return $this->readOneof(21);
+    }
+
+    public function hasConditionPrometheusQueryLanguage()
+    {
+        return $this->hasOneof(21);
+    }
+
+    /**
+     * A condition that uses the Prometheus query language to define alerts.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.PrometheusQueryLanguageCondition condition_prometheus_query_language = 21;</code>
+     * @param \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\PrometheusQueryLanguageCondition $var
+     * @return $this
+     */
+    public function setConditionPrometheusQueryLanguage($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\PrometheusQueryLanguageCondition::class);
+        $this->writeOneof(21, $var);
+
+        return $this;
+    }
+
+    /**
+     * A condition that periodically evaluates a SQL query result.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.SqlCondition condition_sql = 22;</code>
+     * @return \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition|null
+     */
+    public function getConditionSql()
+    {
+        return $this->readOneof(22);
+    }
+
+    public function hasConditionSql()
+    {
+        return $this->hasOneof(22);
+    }
+
+    /**
+     * A condition that periodically evaluates a SQL query result.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.SqlCondition condition_sql = 22;</code>
+     * @param \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition $var
+     * @return $this
+     */
+    public function setConditionSql($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition::class);
+        $this->writeOneof(22, $var);
+
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getCondition()
+    {
+        return $this->whichOneof("condition");
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(Condition::class, \Google\Cloud\Monitoring\V3\AlertPolicy_Condition::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/EvaluationMissingData.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/EvaluationMissingData.php
new file mode 100644
index 000000000000..6fc5a47b481b
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/EvaluationMissingData.php
@@ -0,0 +1,76 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert.proto
+
+namespace Google\Cloud\Monitoring\V3\AlertPolicy\Condition;
+
+use UnexpectedValueException;
+
+/**
+ * A condition control that determines how metric-threshold conditions
+ * are evaluated when data stops arriving.
+ * This control doesn't affect metric-absence policies.
+ *
+ * Protobuf type <code>google.monitoring.v3.AlertPolicy.Condition.EvaluationMissingData</code>
+ */
+class EvaluationMissingData
+{
+    /**
+     * An unspecified evaluation missing data option.  Equivalent to
+     * EVALUATION_MISSING_DATA_NO_OP.
+     *
+     * Generated from protobuf enum <code>EVALUATION_MISSING_DATA_UNSPECIFIED = 0;</code>
+     */
+    const EVALUATION_MISSING_DATA_UNSPECIFIED = 0;
+    /**
+     * If there is no data to evaluate the condition, then evaluate the
+     * condition as false.
+     *
+     * Generated from protobuf enum <code>EVALUATION_MISSING_DATA_INACTIVE = 1;</code>
+     */
+    const EVALUATION_MISSING_DATA_INACTIVE = 1;
+    /**
+     * If there is no data to evaluate the condition, then evaluate the
+     * condition as true.
+     *
+     * Generated from protobuf enum <code>EVALUATION_MISSING_DATA_ACTIVE = 2;</code>
+     */
+    const EVALUATION_MISSING_DATA_ACTIVE = 2;
+    /**
+     * Do not evaluate the condition to any value if there is no data.
+     *
+     * Generated from protobuf enum <code>EVALUATION_MISSING_DATA_NO_OP = 3;</code>
+     */
+    const EVALUATION_MISSING_DATA_NO_OP = 3;
+
+    private static $valueToName = [
+        self::EVALUATION_MISSING_DATA_UNSPECIFIED => 'EVALUATION_MISSING_DATA_UNSPECIFIED',
+        self::EVALUATION_MISSING_DATA_INACTIVE => 'EVALUATION_MISSING_DATA_INACTIVE',
+        self::EVALUATION_MISSING_DATA_ACTIVE => 'EVALUATION_MISSING_DATA_ACTIVE',
+        self::EVALUATION_MISSING_DATA_NO_OP => 'EVALUATION_MISSING_DATA_NO_OP',
+    ];
+
+    public static function name($value)
+    {
+        if (!isset(self::$valueToName[$value])) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no name defined for value %s', __CLASS__, $value));
+        }
+        return self::$valueToName[$value];
+    }
+
+
+    public static function value($name)
+    {
+        $const = __CLASS__ . '::' . strtoupper($name);
+        if (!defined($const)) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no value defined for name %s', __CLASS__, $name));
+        }
+        return constant($const);
+    }
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(EvaluationMissingData::class, \Google\Cloud\Monitoring\V3\AlertPolicy_Condition_EvaluationMissingData::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/LogMatch.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/LogMatch.php
new file mode 100644
index 000000000000..cd52e655a016
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/LogMatch.php
@@ -0,0 +1,151 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert.proto
+
+namespace Google\Cloud\Monitoring\V3\AlertPolicy\Condition;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A condition type that checks whether a log message in the [scoping
+ * project](https://cloud.google.com/monitoring/api/v3#project_name)
+ * satisfies the given filter. Logs from other projects in the metrics
+ * scope are not evaluated.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.AlertPolicy.Condition.LogMatch</code>
+ */
+class LogMatch extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. A logs-based filter. See [Advanced Logs
+     * Queries](https://cloud.google.com/logging/docs/view/advanced-queries)
+     * for how this filter should be constructed.
+     *
+     * Generated from protobuf field <code>string filter = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $filter = '';
+    /**
+     * Optional. A map from a label key to an extractor expression, which is
+     * used to extract the value for this label key. Each entry in this map is
+     * a specification for how data should be extracted from log entries that
+     * match `filter`. Each combination of extracted values is treated as a
+     * separate rule for the purposes of triggering notifications. Label keys
+     * and corresponding values can be used in notifications generated by this
+     * condition.
+     * Please see [the documentation on logs-based metric
+     * `valueExtractor`s](https://cloud.google.com/logging/docs/reference/v2/rest/v2/projects.metrics#LogMetric.FIELDS.value_extractor)
+     * for syntax and examples.
+     *
+     * Generated from protobuf field <code>map<string, string> label_extractors = 2;</code>
+     */
+    private $label_extractors;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $filter
+     *           Required. A logs-based filter. See [Advanced Logs
+     *           Queries](https://cloud.google.com/logging/docs/view/advanced-queries)
+     *           for how this filter should be constructed.
+     *     @type array|\Google\Protobuf\Internal\MapField $label_extractors
+     *           Optional. A map from a label key to an extractor expression, which is
+     *           used to extract the value for this label key. Each entry in this map is
+     *           a specification for how data should be extracted from log entries that
+     *           match `filter`. Each combination of extracted values is treated as a
+     *           separate rule for the purposes of triggering notifications. Label keys
+     *           and corresponding values can be used in notifications generated by this
+     *           condition.
+     *           Please see [the documentation on logs-based metric
+     *           `valueExtractor`s](https://cloud.google.com/logging/docs/reference/v2/rest/v2/projects.metrics#LogMetric.FIELDS.value_extractor)
+     *           for syntax and examples.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Alert::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. A logs-based filter. See [Advanced Logs
+     * Queries](https://cloud.google.com/logging/docs/view/advanced-queries)
+     * for how this filter should be constructed.
+     *
+     * Generated from protobuf field <code>string filter = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return string
+     */
+    public function getFilter()
+    {
+        return $this->filter;
+    }
+
+    /**
+     * Required. A logs-based filter. See [Advanced Logs
+     * Queries](https://cloud.google.com/logging/docs/view/advanced-queries)
+     * for how this filter should be constructed.
+     *
+     * Generated from protobuf field <code>string filter = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setFilter($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->filter = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. A map from a label key to an extractor expression, which is
+     * used to extract the value for this label key. Each entry in this map is
+     * a specification for how data should be extracted from log entries that
+     * match `filter`. Each combination of extracted values is treated as a
+     * separate rule for the purposes of triggering notifications. Label keys
+     * and corresponding values can be used in notifications generated by this
+     * condition.
+     * Please see [the documentation on logs-based metric
+     * `valueExtractor`s](https://cloud.google.com/logging/docs/reference/v2/rest/v2/projects.metrics#LogMetric.FIELDS.value_extractor)
+     * for syntax and examples.
+     *
+     * Generated from protobuf field <code>map<string, string> label_extractors = 2;</code>
+     * @return \Google\Protobuf\Internal\MapField
+     */
+    public function getLabelExtractors()
+    {
+        return $this->label_extractors;
+    }
+
+    /**
+     * Optional. A map from a label key to an extractor expression, which is
+     * used to extract the value for this label key. Each entry in this map is
+     * a specification for how data should be extracted from log entries that
+     * match `filter`. Each combination of extracted values is treated as a
+     * separate rule for the purposes of triggering notifications. Label keys
+     * and corresponding values can be used in notifications generated by this
+     * condition.
+     * Please see [the documentation on logs-based metric
+     * `valueExtractor`s](https://cloud.google.com/logging/docs/reference/v2/rest/v2/projects.metrics#LogMetric.FIELDS.value_extractor)
+     * for syntax and examples.
+     *
+     * Generated from protobuf field <code>map<string, string> label_extractors = 2;</code>
+     * @param array|\Google\Protobuf\Internal\MapField $var
+     * @return $this
+     */
+    public function setLabelExtractors($var)
+    {
+        $arr = GPBUtil::checkMapField($var, \Google\Protobuf\Internal\GPBType::STRING, \Google\Protobuf\Internal\GPBType::STRING);
+        $this->label_extractors = $arr;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(LogMatch::class, \Google\Cloud\Monitoring\V3\AlertPolicy_Condition_LogMatch::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/MetricAbsence.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/MetricAbsence.php
new file mode 100644
index 000000000000..fc6aad1dfc46
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/MetricAbsence.php
@@ -0,0 +1,304 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert.proto
+
+namespace Google\Cloud\Monitoring\V3\AlertPolicy\Condition;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A condition type that checks that monitored resources
+ * are reporting data. The configuration defines a metric and
+ * a set of monitored resources. The predicate is considered in violation
+ * when a time series for the specified metric of a monitored
+ * resource does not include any data in the specified `duration`.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.AlertPolicy.Condition.MetricAbsence</code>
+ */
+class MetricAbsence extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. A
+     * [filter](https://cloud.google.com/monitoring/api/v3/filters) that
+     * identifies which time series should be compared with the threshold.
+     * The filter is similar to the one that is specified in the
+     * [`ListTimeSeries`
+     * request](https://cloud.google.com/monitoring/api/ref_v3/rest/v3/projects.timeSeries/list)
+     * (that call is useful to verify the time series that will be retrieved /
+     * processed). The filter must specify the metric type and the resource
+     * type. Optionally, it can specify resource labels and metric labels.
+     * This field must not exceed 2048 Unicode characters in length.
+     *
+     * Generated from protobuf field <code>string filter = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $filter = '';
+    /**
+     * Specifies the alignment of data points in individual time series as
+     * well as how to combine the retrieved time series together (such as
+     * when aggregating multiple streams on each resource to a single
+     * stream for each resource or when aggregating streams across all
+     * members of a group of resources). Multiple aggregations
+     * are applied in the order specified.
+     * This field is similar to the one in the [`ListTimeSeries`
+     * request](https://cloud.google.com/monitoring/api/ref_v3/rest/v3/projects.timeSeries/list).
+     * It is advisable to use the `ListTimeSeries` method when debugging this
+     * field.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.Aggregation aggregations = 5;</code>
+     */
+    private $aggregations;
+    /**
+     * The amount of time that a time series must fail to report new
+     * data to be considered failing. The minimum value of this field
+     * is 120 seconds. Larger values that are a multiple of a
+     * minute--for example, 240 or 300 seconds--are supported.
+     * If an invalid value is given, an
+     * error will be returned. The `Duration.nanos` field is
+     * ignored.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration duration = 2;</code>
+     */
+    protected $duration = null;
+    /**
+     * The number/percent of time series for which the comparison must hold
+     * in order for the condition to trigger. If unspecified, then the
+     * condition will trigger if the comparison is true for any of the
+     * time series that have been identified by `filter` and `aggregations`.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.Trigger trigger = 3;</code>
+     */
+    protected $trigger = null;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $filter
+     *           Required. A
+     *           [filter](https://cloud.google.com/monitoring/api/v3/filters) that
+     *           identifies which time series should be compared with the threshold.
+     *           The filter is similar to the one that is specified in the
+     *           [`ListTimeSeries`
+     *           request](https://cloud.google.com/monitoring/api/ref_v3/rest/v3/projects.timeSeries/list)
+     *           (that call is useful to verify the time series that will be retrieved /
+     *           processed). The filter must specify the metric type and the resource
+     *           type. Optionally, it can specify resource labels and metric labels.
+     *           This field must not exceed 2048 Unicode characters in length.
+     *     @type array<\Google\Cloud\Monitoring\V3\Aggregation>|\Google\Protobuf\Internal\RepeatedField $aggregations
+     *           Specifies the alignment of data points in individual time series as
+     *           well as how to combine the retrieved time series together (such as
+     *           when aggregating multiple streams on each resource to a single
+     *           stream for each resource or when aggregating streams across all
+     *           members of a group of resources). Multiple aggregations
+     *           are applied in the order specified.
+     *           This field is similar to the one in the [`ListTimeSeries`
+     *           request](https://cloud.google.com/monitoring/api/ref_v3/rest/v3/projects.timeSeries/list).
+     *           It is advisable to use the `ListTimeSeries` method when debugging this
+     *           field.
+     *     @type \Google\Protobuf\Duration $duration
+     *           The amount of time that a time series must fail to report new
+     *           data to be considered failing. The minimum value of this field
+     *           is 120 seconds. Larger values that are a multiple of a
+     *           minute--for example, 240 or 300 seconds--are supported.
+     *           If an invalid value is given, an
+     *           error will be returned. The `Duration.nanos` field is
+     *           ignored.
+     *     @type \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\Trigger $trigger
+     *           The number/percent of time series for which the comparison must hold
+     *           in order for the condition to trigger. If unspecified, then the
+     *           condition will trigger if the comparison is true for any of the
+     *           time series that have been identified by `filter` and `aggregations`.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Alert::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. A
+     * [filter](https://cloud.google.com/monitoring/api/v3/filters) that
+     * identifies which time series should be compared with the threshold.
+     * The filter is similar to the one that is specified in the
+     * [`ListTimeSeries`
+     * request](https://cloud.google.com/monitoring/api/ref_v3/rest/v3/projects.timeSeries/list)
+     * (that call is useful to verify the time series that will be retrieved /
+     * processed). The filter must specify the metric type and the resource
+     * type. Optionally, it can specify resource labels and metric labels.
+     * This field must not exceed 2048 Unicode characters in length.
+     *
+     * Generated from protobuf field <code>string filter = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return string
+     */
+    public function getFilter()
+    {
+        return $this->filter;
+    }
+
+    /**
+     * Required. A
+     * [filter](https://cloud.google.com/monitoring/api/v3/filters) that
+     * identifies which time series should be compared with the threshold.
+     * The filter is similar to the one that is specified in the
+     * [`ListTimeSeries`
+     * request](https://cloud.google.com/monitoring/api/ref_v3/rest/v3/projects.timeSeries/list)
+     * (that call is useful to verify the time series that will be retrieved /
+     * processed). The filter must specify the metric type and the resource
+     * type. Optionally, it can specify resource labels and metric labels.
+     * This field must not exceed 2048 Unicode characters in length.
+     *
+     * Generated from protobuf field <code>string filter = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setFilter($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->filter = $var;
+
+        return $this;
+    }
+
+    /**
+     * Specifies the alignment of data points in individual time series as
+     * well as how to combine the retrieved time series together (such as
+     * when aggregating multiple streams on each resource to a single
+     * stream for each resource or when aggregating streams across all
+     * members of a group of resources). Multiple aggregations
+     * are applied in the order specified.
+     * This field is similar to the one in the [`ListTimeSeries`
+     * request](https://cloud.google.com/monitoring/api/ref_v3/rest/v3/projects.timeSeries/list).
+     * It is advisable to use the `ListTimeSeries` method when debugging this
+     * field.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.Aggregation aggregations = 5;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getAggregations()
+    {
+        return $this->aggregations;
+    }
+
+    /**
+     * Specifies the alignment of data points in individual time series as
+     * well as how to combine the retrieved time series together (such as
+     * when aggregating multiple streams on each resource to a single
+     * stream for each resource or when aggregating streams across all
+     * members of a group of resources). Multiple aggregations
+     * are applied in the order specified.
+     * This field is similar to the one in the [`ListTimeSeries`
+     * request](https://cloud.google.com/monitoring/api/ref_v3/rest/v3/projects.timeSeries/list).
+     * It is advisable to use the `ListTimeSeries` method when debugging this
+     * field.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.Aggregation aggregations = 5;</code>
+     * @param array<\Google\Cloud\Monitoring\V3\Aggregation>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setAggregations($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\Aggregation::class);
+        $this->aggregations = $arr;
+
+        return $this;
+    }
+
+    /**
+     * The amount of time that a time series must fail to report new
+     * data to be considered failing. The minimum value of this field
+     * is 120 seconds. Larger values that are a multiple of a
+     * minute--for example, 240 or 300 seconds--are supported.
+     * If an invalid value is given, an
+     * error will be returned. The `Duration.nanos` field is
+     * ignored.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration duration = 2;</code>
+     * @return \Google\Protobuf\Duration|null
+     */
+    public function getDuration()
+    {
+        return $this->duration;
+    }
+
+    public function hasDuration()
+    {
+        return isset($this->duration);
+    }
+
+    public function clearDuration()
+    {
+        unset($this->duration);
+    }
+
+    /**
+     * The amount of time that a time series must fail to report new
+     * data to be considered failing. The minimum value of this field
+     * is 120 seconds. Larger values that are a multiple of a
+     * minute--for example, 240 or 300 seconds--are supported.
+     * If an invalid value is given, an
+     * error will be returned. The `Duration.nanos` field is
+     * ignored.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration duration = 2;</code>
+     * @param \Google\Protobuf\Duration $var
+     * @return $this
+     */
+    public function setDuration($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\Duration::class);
+        $this->duration = $var;
+
+        return $this;
+    }
+
+    /**
+     * The number/percent of time series for which the comparison must hold
+     * in order for the condition to trigger. If unspecified, then the
+     * condition will trigger if the comparison is true for any of the
+     * time series that have been identified by `filter` and `aggregations`.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.Trigger trigger = 3;</code>
+     * @return \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\Trigger|null
+     */
+    public function getTrigger()
+    {
+        return $this->trigger;
+    }
+
+    public function hasTrigger()
+    {
+        return isset($this->trigger);
+    }
+
+    public function clearTrigger()
+    {
+        unset($this->trigger);
+    }
+
+    /**
+     * The number/percent of time series for which the comparison must hold
+     * in order for the condition to trigger. If unspecified, then the
+     * condition will trigger if the comparison is true for any of the
+     * time series that have been identified by `filter` and `aggregations`.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.Trigger trigger = 3;</code>
+     * @param \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\Trigger $var
+     * @return $this
+     */
+    public function setTrigger($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\Trigger::class);
+        $this->trigger = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(MetricAbsence::class, \Google\Cloud\Monitoring\V3\AlertPolicy_Condition_MetricAbsence::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/MetricThreshold.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/MetricThreshold.php
new file mode 100644
index 000000000000..74e9099f57fc
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/MetricThreshold.php
@@ -0,0 +1,635 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert.proto
+
+namespace Google\Cloud\Monitoring\V3\AlertPolicy\Condition;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A condition type that compares a collection of time series
+ * against a threshold.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.AlertPolicy.Condition.MetricThreshold</code>
+ */
+class MetricThreshold extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. A
+     * [filter](https://cloud.google.com/monitoring/api/v3/filters) that
+     * identifies which time series should be compared with the threshold.
+     * The filter is similar to the one that is specified in the
+     * [`ListTimeSeries`
+     * request](https://cloud.google.com/monitoring/api/ref_v3/rest/v3/projects.timeSeries/list)
+     * (that call is useful to verify the time series that will be retrieved /
+     * processed). The filter must specify the metric type and the resource
+     * type. Optionally, it can specify resource labels and metric labels.
+     * This field must not exceed 2048 Unicode characters in length.
+     *
+     * Generated from protobuf field <code>string filter = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $filter = '';
+    /**
+     * Specifies the alignment of data points in individual time series as
+     * well as how to combine the retrieved time series together (such as
+     * when aggregating multiple streams on each resource to a single
+     * stream for each resource or when aggregating streams across all
+     * members of a group of resources). Multiple aggregations
+     * are applied in the order specified.
+     * This field is similar to the one in the [`ListTimeSeries`
+     * request](https://cloud.google.com/monitoring/api/ref_v3/rest/v3/projects.timeSeries/list).
+     * It is advisable to use the `ListTimeSeries` method when debugging this
+     * field.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.Aggregation aggregations = 8;</code>
+     */
+    private $aggregations;
+    /**
+     * A [filter](https://cloud.google.com/monitoring/api/v3/filters) that
+     * identifies a time series that should be used as the denominator of a
+     * ratio that will be compared with the threshold. If a
+     * `denominator_filter` is specified, the time series specified by the
+     * `filter` field will be used as the numerator.
+     * The filter must specify the metric type and optionally may contain
+     * restrictions on resource type, resource labels, and metric labels.
+     * This field may not exceed 2048 Unicode characters in length.
+     *
+     * Generated from protobuf field <code>string denominator_filter = 9;</code>
+     */
+    protected $denominator_filter = '';
+    /**
+     * Specifies the alignment of data points in individual time series
+     * selected by `denominatorFilter` as
+     * well as how to combine the retrieved time series together (such as
+     * when aggregating multiple streams on each resource to a single
+     * stream for each resource or when aggregating streams across all
+     * members of a group of resources).
+     * When computing ratios, the `aggregations` and
+     * `denominator_aggregations` fields must use the same alignment period
+     * and produce time series that have the same periodicity and labels.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.Aggregation denominator_aggregations = 10;</code>
+     */
+    private $denominator_aggregations;
+    /**
+     * When this field is present, the `MetricThreshold` condition forecasts
+     * whether the time series is predicted to violate the threshold within
+     * the `forecast_horizon`. When this field is not set, the
+     * `MetricThreshold` tests the current value of the timeseries against the
+     * threshold.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.MetricThreshold.ForecastOptions forecast_options = 12;</code>
+     */
+    protected $forecast_options = null;
+    /**
+     * The comparison to apply between the time series (indicated by `filter`
+     * and `aggregation`) and the threshold (indicated by `threshold_value`).
+     * The comparison is applied on each time series, with the time series
+     * on the left-hand side and the threshold on the right-hand side.
+     * Only `COMPARISON_LT` and `COMPARISON_GT` are supported currently.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.ComparisonType comparison = 4;</code>
+     */
+    protected $comparison = 0;
+    /**
+     * A value against which to compare the time series.
+     *
+     * Generated from protobuf field <code>double threshold_value = 5;</code>
+     */
+    protected $threshold_value = 0.0;
+    /**
+     * The amount of time that a time series must violate the
+     * threshold to be considered failing. Currently, only values
+     * that are a multiple of a minute--e.g., 0, 60, 120, or 300
+     * seconds--are supported. If an invalid value is given, an
+     * error will be returned. When choosing a duration, it is useful to
+     * keep in mind the frequency of the underlying time series data
+     * (which may also be affected by any alignments specified in the
+     * `aggregations` field); a good duration is long enough so that a single
+     * outlier does not generate spurious alerts, but short enough that
+     * unhealthy states are detected and alerted on quickly.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration duration = 6;</code>
+     */
+    protected $duration = null;
+    /**
+     * The number/percent of time series for which the comparison must hold
+     * in order for the condition to trigger. If unspecified, then the
+     * condition will trigger if the comparison is true for any of the
+     * time series that have been identified by `filter` and `aggregations`,
+     * or by the ratio, if `denominator_filter` and `denominator_aggregations`
+     * are specified.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.Trigger trigger = 7;</code>
+     */
+    protected $trigger = null;
+    /**
+     * A condition control that determines how metric-threshold conditions
+     * are evaluated when data stops arriving. To use this control, the value
+     * of the `duration` field must be greater than or equal to 60 seconds.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.EvaluationMissingData evaluation_missing_data = 11;</code>
+     */
+    protected $evaluation_missing_data = 0;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $filter
+     *           Required. A
+     *           [filter](https://cloud.google.com/monitoring/api/v3/filters) that
+     *           identifies which time series should be compared with the threshold.
+     *           The filter is similar to the one that is specified in the
+     *           [`ListTimeSeries`
+     *           request](https://cloud.google.com/monitoring/api/ref_v3/rest/v3/projects.timeSeries/list)
+     *           (that call is useful to verify the time series that will be retrieved /
+     *           processed). The filter must specify the metric type and the resource
+     *           type. Optionally, it can specify resource labels and metric labels.
+     *           This field must not exceed 2048 Unicode characters in length.
+     *     @type array<\Google\Cloud\Monitoring\V3\Aggregation>|\Google\Protobuf\Internal\RepeatedField $aggregations
+     *           Specifies the alignment of data points in individual time series as
+     *           well as how to combine the retrieved time series together (such as
+     *           when aggregating multiple streams on each resource to a single
+     *           stream for each resource or when aggregating streams across all
+     *           members of a group of resources). Multiple aggregations
+     *           are applied in the order specified.
+     *           This field is similar to the one in the [`ListTimeSeries`
+     *           request](https://cloud.google.com/monitoring/api/ref_v3/rest/v3/projects.timeSeries/list).
+     *           It is advisable to use the `ListTimeSeries` method when debugging this
+     *           field.
+     *     @type string $denominator_filter
+     *           A [filter](https://cloud.google.com/monitoring/api/v3/filters) that
+     *           identifies a time series that should be used as the denominator of a
+     *           ratio that will be compared with the threshold. If a
+     *           `denominator_filter` is specified, the time series specified by the
+     *           `filter` field will be used as the numerator.
+     *           The filter must specify the metric type and optionally may contain
+     *           restrictions on resource type, resource labels, and metric labels.
+     *           This field may not exceed 2048 Unicode characters in length.
+     *     @type array<\Google\Cloud\Monitoring\V3\Aggregation>|\Google\Protobuf\Internal\RepeatedField $denominator_aggregations
+     *           Specifies the alignment of data points in individual time series
+     *           selected by `denominatorFilter` as
+     *           well as how to combine the retrieved time series together (such as
+     *           when aggregating multiple streams on each resource to a single
+     *           stream for each resource or when aggregating streams across all
+     *           members of a group of resources).
+     *           When computing ratios, the `aggregations` and
+     *           `denominator_aggregations` fields must use the same alignment period
+     *           and produce time series that have the same periodicity and labels.
+     *     @type \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\MetricThreshold\ForecastOptions $forecast_options
+     *           When this field is present, the `MetricThreshold` condition forecasts
+     *           whether the time series is predicted to violate the threshold within
+     *           the `forecast_horizon`. When this field is not set, the
+     *           `MetricThreshold` tests the current value of the timeseries against the
+     *           threshold.
+     *     @type int $comparison
+     *           The comparison to apply between the time series (indicated by `filter`
+     *           and `aggregation`) and the threshold (indicated by `threshold_value`).
+     *           The comparison is applied on each time series, with the time series
+     *           on the left-hand side and the threshold on the right-hand side.
+     *           Only `COMPARISON_LT` and `COMPARISON_GT` are supported currently.
+     *     @type float $threshold_value
+     *           A value against which to compare the time series.
+     *     @type \Google\Protobuf\Duration $duration
+     *           The amount of time that a time series must violate the
+     *           threshold to be considered failing. Currently, only values
+     *           that are a multiple of a minute--e.g., 0, 60, 120, or 300
+     *           seconds--are supported. If an invalid value is given, an
+     *           error will be returned. When choosing a duration, it is useful to
+     *           keep in mind the frequency of the underlying time series data
+     *           (which may also be affected by any alignments specified in the
+     *           `aggregations` field); a good duration is long enough so that a single
+     *           outlier does not generate spurious alerts, but short enough that
+     *           unhealthy states are detected and alerted on quickly.
+     *     @type \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\Trigger $trigger
+     *           The number/percent of time series for which the comparison must hold
+     *           in order for the condition to trigger. If unspecified, then the
+     *           condition will trigger if the comparison is true for any of the
+     *           time series that have been identified by `filter` and `aggregations`,
+     *           or by the ratio, if `denominator_filter` and `denominator_aggregations`
+     *           are specified.
+     *     @type int $evaluation_missing_data
+     *           A condition control that determines how metric-threshold conditions
+     *           are evaluated when data stops arriving. To use this control, the value
+     *           of the `duration` field must be greater than or equal to 60 seconds.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Alert::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. A
+     * [filter](https://cloud.google.com/monitoring/api/v3/filters) that
+     * identifies which time series should be compared with the threshold.
+     * The filter is similar to the one that is specified in the
+     * [`ListTimeSeries`
+     * request](https://cloud.google.com/monitoring/api/ref_v3/rest/v3/projects.timeSeries/list)
+     * (that call is useful to verify the time series that will be retrieved /
+     * processed). The filter must specify the metric type and the resource
+     * type. Optionally, it can specify resource labels and metric labels.
+     * This field must not exceed 2048 Unicode characters in length.
+     *
+     * Generated from protobuf field <code>string filter = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return string
+     */
+    public function getFilter()
+    {
+        return $this->filter;
+    }
+
+    /**
+     * Required. A
+     * [filter](https://cloud.google.com/monitoring/api/v3/filters) that
+     * identifies which time series should be compared with the threshold.
+     * The filter is similar to the one that is specified in the
+     * [`ListTimeSeries`
+     * request](https://cloud.google.com/monitoring/api/ref_v3/rest/v3/projects.timeSeries/list)
+     * (that call is useful to verify the time series that will be retrieved /
+     * processed). The filter must specify the metric type and the resource
+     * type. Optionally, it can specify resource labels and metric labels.
+     * This field must not exceed 2048 Unicode characters in length.
+     *
+     * Generated from protobuf field <code>string filter = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setFilter($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->filter = $var;
+
+        return $this;
+    }
+
+    /**
+     * Specifies the alignment of data points in individual time series as
+     * well as how to combine the retrieved time series together (such as
+     * when aggregating multiple streams on each resource to a single
+     * stream for each resource or when aggregating streams across all
+     * members of a group of resources). Multiple aggregations
+     * are applied in the order specified.
+     * This field is similar to the one in the [`ListTimeSeries`
+     * request](https://cloud.google.com/monitoring/api/ref_v3/rest/v3/projects.timeSeries/list).
+     * It is advisable to use the `ListTimeSeries` method when debugging this
+     * field.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.Aggregation aggregations = 8;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getAggregations()
+    {
+        return $this->aggregations;
+    }
+
+    /**
+     * Specifies the alignment of data points in individual time series as
+     * well as how to combine the retrieved time series together (such as
+     * when aggregating multiple streams on each resource to a single
+     * stream for each resource or when aggregating streams across all
+     * members of a group of resources). Multiple aggregations
+     * are applied in the order specified.
+     * This field is similar to the one in the [`ListTimeSeries`
+     * request](https://cloud.google.com/monitoring/api/ref_v3/rest/v3/projects.timeSeries/list).
+     * It is advisable to use the `ListTimeSeries` method when debugging this
+     * field.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.Aggregation aggregations = 8;</code>
+     * @param array<\Google\Cloud\Monitoring\V3\Aggregation>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setAggregations($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\Aggregation::class);
+        $this->aggregations = $arr;
+
+        return $this;
+    }
+
+    /**
+     * A [filter](https://cloud.google.com/monitoring/api/v3/filters) that
+     * identifies a time series that should be used as the denominator of a
+     * ratio that will be compared with the threshold. If a
+     * `denominator_filter` is specified, the time series specified by the
+     * `filter` field will be used as the numerator.
+     * The filter must specify the metric type and optionally may contain
+     * restrictions on resource type, resource labels, and metric labels.
+     * This field may not exceed 2048 Unicode characters in length.
+     *
+     * Generated from protobuf field <code>string denominator_filter = 9;</code>
+     * @return string
+     */
+    public function getDenominatorFilter()
+    {
+        return $this->denominator_filter;
+    }
+
+    /**
+     * A [filter](https://cloud.google.com/monitoring/api/v3/filters) that
+     * identifies a time series that should be used as the denominator of a
+     * ratio that will be compared with the threshold. If a
+     * `denominator_filter` is specified, the time series specified by the
+     * `filter` field will be used as the numerator.
+     * The filter must specify the metric type and optionally may contain
+     * restrictions on resource type, resource labels, and metric labels.
+     * This field may not exceed 2048 Unicode characters in length.
+     *
+     * Generated from protobuf field <code>string denominator_filter = 9;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setDenominatorFilter($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->denominator_filter = $var;
+
+        return $this;
+    }
+
+    /**
+     * Specifies the alignment of data points in individual time series
+     * selected by `denominatorFilter` as
+     * well as how to combine the retrieved time series together (such as
+     * when aggregating multiple streams on each resource to a single
+     * stream for each resource or when aggregating streams across all
+     * members of a group of resources).
+     * When computing ratios, the `aggregations` and
+     * `denominator_aggregations` fields must use the same alignment period
+     * and produce time series that have the same periodicity and labels.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.Aggregation denominator_aggregations = 10;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getDenominatorAggregations()
+    {
+        return $this->denominator_aggregations;
+    }
+
+    /**
+     * Specifies the alignment of data points in individual time series
+     * selected by `denominatorFilter` as
+     * well as how to combine the retrieved time series together (such as
+     * when aggregating multiple streams on each resource to a single
+     * stream for each resource or when aggregating streams across all
+     * members of a group of resources).
+     * When computing ratios, the `aggregations` and
+     * `denominator_aggregations` fields must use the same alignment period
+     * and produce time series that have the same periodicity and labels.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.Aggregation denominator_aggregations = 10;</code>
+     * @param array<\Google\Cloud\Monitoring\V3\Aggregation>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setDenominatorAggregations($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\Aggregation::class);
+        $this->denominator_aggregations = $arr;
+
+        return $this;
+    }
+
+    /**
+     * When this field is present, the `MetricThreshold` condition forecasts
+     * whether the time series is predicted to violate the threshold within
+     * the `forecast_horizon`. When this field is not set, the
+     * `MetricThreshold` tests the current value of the timeseries against the
+     * threshold.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.MetricThreshold.ForecastOptions forecast_options = 12;</code>
+     * @return \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\MetricThreshold\ForecastOptions|null
+     */
+    public function getForecastOptions()
+    {
+        return $this->forecast_options;
+    }
+
+    public function hasForecastOptions()
+    {
+        return isset($this->forecast_options);
+    }
+
+    public function clearForecastOptions()
+    {
+        unset($this->forecast_options);
+    }
+
+    /**
+     * When this field is present, the `MetricThreshold` condition forecasts
+     * whether the time series is predicted to violate the threshold within
+     * the `forecast_horizon`. When this field is not set, the
+     * `MetricThreshold` tests the current value of the timeseries against the
+     * threshold.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.MetricThreshold.ForecastOptions forecast_options = 12;</code>
+     * @param \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\MetricThreshold\ForecastOptions $var
+     * @return $this
+     */
+    public function setForecastOptions($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\MetricThreshold\ForecastOptions::class);
+        $this->forecast_options = $var;
+
+        return $this;
+    }
+
+    /**
+     * The comparison to apply between the time series (indicated by `filter`
+     * and `aggregation`) and the threshold (indicated by `threshold_value`).
+     * The comparison is applied on each time series, with the time series
+     * on the left-hand side and the threshold on the right-hand side.
+     * Only `COMPARISON_LT` and `COMPARISON_GT` are supported currently.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.ComparisonType comparison = 4;</code>
+     * @return int
+     */
+    public function getComparison()
+    {
+        return $this->comparison;
+    }
+
+    /**
+     * The comparison to apply between the time series (indicated by `filter`
+     * and `aggregation`) and the threshold (indicated by `threshold_value`).
+     * The comparison is applied on each time series, with the time series
+     * on the left-hand side and the threshold on the right-hand side.
+     * Only `COMPARISON_LT` and `COMPARISON_GT` are supported currently.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.ComparisonType comparison = 4;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setComparison($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Cloud\Monitoring\V3\ComparisonType::class);
+        $this->comparison = $var;
+
+        return $this;
+    }
+
+    /**
+     * A value against which to compare the time series.
+     *
+     * Generated from protobuf field <code>double threshold_value = 5;</code>
+     * @return float
+     */
+    public function getThresholdValue()
+    {
+        return $this->threshold_value;
+    }
+
+    /**
+     * A value against which to compare the time series.
+     *
+     * Generated from protobuf field <code>double threshold_value = 5;</code>
+     * @param float $var
+     * @return $this
+     */
+    public function setThresholdValue($var)
+    {
+        GPBUtil::checkDouble($var);
+        $this->threshold_value = $var;
+
+        return $this;
+    }
+
+    /**
+     * The amount of time that a time series must violate the
+     * threshold to be considered failing. Currently, only values
+     * that are a multiple of a minute--e.g., 0, 60, 120, or 300
+     * seconds--are supported. If an invalid value is given, an
+     * error will be returned. When choosing a duration, it is useful to
+     * keep in mind the frequency of the underlying time series data
+     * (which may also be affected by any alignments specified in the
+     * `aggregations` field); a good duration is long enough so that a single
+     * outlier does not generate spurious alerts, but short enough that
+     * unhealthy states are detected and alerted on quickly.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration duration = 6;</code>
+     * @return \Google\Protobuf\Duration|null
+     */
+    public function getDuration()
+    {
+        return $this->duration;
+    }
+
+    public function hasDuration()
+    {
+        return isset($this->duration);
+    }
+
+    public function clearDuration()
+    {
+        unset($this->duration);
+    }
+
+    /**
+     * The amount of time that a time series must violate the
+     * threshold to be considered failing. Currently, only values
+     * that are a multiple of a minute--e.g., 0, 60, 120, or 300
+     * seconds--are supported. If an invalid value is given, an
+     * error will be returned. When choosing a duration, it is useful to
+     * keep in mind the frequency of the underlying time series data
+     * (which may also be affected by any alignments specified in the
+     * `aggregations` field); a good duration is long enough so that a single
+     * outlier does not generate spurious alerts, but short enough that
+     * unhealthy states are detected and alerted on quickly.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration duration = 6;</code>
+     * @param \Google\Protobuf\Duration $var
+     * @return $this
+     */
+    public function setDuration($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\Duration::class);
+        $this->duration = $var;
+
+        return $this;
+    }
+
+    /**
+     * The number/percent of time series for which the comparison must hold
+     * in order for the condition to trigger. If unspecified, then the
+     * condition will trigger if the comparison is true for any of the
+     * time series that have been identified by `filter` and `aggregations`,
+     * or by the ratio, if `denominator_filter` and `denominator_aggregations`
+     * are specified.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.Trigger trigger = 7;</code>
+     * @return \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\Trigger|null
+     */
+    public function getTrigger()
+    {
+        return $this->trigger;
+    }
+
+    public function hasTrigger()
+    {
+        return isset($this->trigger);
+    }
+
+    public function clearTrigger()
+    {
+        unset($this->trigger);
+    }
+
+    /**
+     * The number/percent of time series for which the comparison must hold
+     * in order for the condition to trigger. If unspecified, then the
+     * condition will trigger if the comparison is true for any of the
+     * time series that have been identified by `filter` and `aggregations`,
+     * or by the ratio, if `denominator_filter` and `denominator_aggregations`
+     * are specified.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.Trigger trigger = 7;</code>
+     * @param \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\Trigger $var
+     * @return $this
+     */
+    public function setTrigger($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\Trigger::class);
+        $this->trigger = $var;
+
+        return $this;
+    }
+
+    /**
+     * A condition control that determines how metric-threshold conditions
+     * are evaluated when data stops arriving. To use this control, the value
+     * of the `duration` field must be greater than or equal to 60 seconds.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.EvaluationMissingData evaluation_missing_data = 11;</code>
+     * @return int
+     */
+    public function getEvaluationMissingData()
+    {
+        return $this->evaluation_missing_data;
+    }
+
+    /**
+     * A condition control that determines how metric-threshold conditions
+     * are evaluated when data stops arriving. To use this control, the value
+     * of the `duration` field must be greater than or equal to 60 seconds.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.EvaluationMissingData evaluation_missing_data = 11;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setEvaluationMissingData($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\EvaluationMissingData::class);
+        $this->evaluation_missing_data = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(MetricThreshold::class, \Google\Cloud\Monitoring\V3\AlertPolicy_Condition_MetricThreshold::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/MetricThreshold/ForecastOptions.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/MetricThreshold/ForecastOptions.php
new file mode 100644
index 000000000000..5b730b5b812c
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/MetricThreshold/ForecastOptions.php
@@ -0,0 +1,101 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert.proto
+
+namespace Google\Cloud\Monitoring\V3\AlertPolicy\Condition\MetricThreshold;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Options used when forecasting the time series and testing
+ * the predicted value against the threshold.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.AlertPolicy.Condition.MetricThreshold.ForecastOptions</code>
+ */
+class ForecastOptions extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The length of time into the future to forecast whether a
+     * time series will violate the threshold. If the predicted value is
+     * found to violate the threshold, and the violation is observed in all
+     * forecasts made for the configured `duration`, then the time series is
+     * considered to be failing.
+     * The forecast horizon can range from 1 hour to 60 hours.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration forecast_horizon = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $forecast_horizon = null;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type \Google\Protobuf\Duration $forecast_horizon
+     *           Required. The length of time into the future to forecast whether a
+     *           time series will violate the threshold. If the predicted value is
+     *           found to violate the threshold, and the violation is observed in all
+     *           forecasts made for the configured `duration`, then the time series is
+     *           considered to be failing.
+     *           The forecast horizon can range from 1 hour to 60 hours.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Alert::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The length of time into the future to forecast whether a
+     * time series will violate the threshold. If the predicted value is
+     * found to violate the threshold, and the violation is observed in all
+     * forecasts made for the configured `duration`, then the time series is
+     * considered to be failing.
+     * The forecast horizon can range from 1 hour to 60 hours.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration forecast_horizon = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return \Google\Protobuf\Duration|null
+     */
+    public function getForecastHorizon()
+    {
+        return $this->forecast_horizon;
+    }
+
+    public function hasForecastHorizon()
+    {
+        return isset($this->forecast_horizon);
+    }
+
+    public function clearForecastHorizon()
+    {
+        unset($this->forecast_horizon);
+    }
+
+    /**
+     * Required. The length of time into the future to forecast whether a
+     * time series will violate the threshold. If the predicted value is
+     * found to violate the threshold, and the violation is observed in all
+     * forecasts made for the configured `duration`, then the time series is
+     * considered to be failing.
+     * The forecast horizon can range from 1 hour to 60 hours.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration forecast_horizon = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param \Google\Protobuf\Duration $var
+     * @return $this
+     */
+    public function setForecastHorizon($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\Duration::class);
+        $this->forecast_horizon = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(ForecastOptions::class, \Google\Cloud\Monitoring\V3\AlertPolicy_Condition_MetricThreshold_ForecastOptions::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/MonitoringQueryLanguageCondition.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/MonitoringQueryLanguageCondition.php
new file mode 100644
index 000000000000..22bb059fe5b0
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/MonitoringQueryLanguageCondition.php
@@ -0,0 +1,257 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert.proto
+
+namespace Google\Cloud\Monitoring\V3\AlertPolicy\Condition;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A condition type that allows alerting policies to be defined using
+ * [Monitoring Query Language](https://cloud.google.com/monitoring/mql).
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.AlertPolicy.Condition.MonitoringQueryLanguageCondition</code>
+ */
+class MonitoringQueryLanguageCondition extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * [Monitoring Query Language](https://cloud.google.com/monitoring/mql)
+     * query that outputs a boolean stream.
+     *
+     * Generated from protobuf field <code>string query = 1;</code>
+     */
+    protected $query = '';
+    /**
+     * The amount of time that a time series must violate the
+     * threshold to be considered failing. Currently, only values
+     * that are a multiple of a minute--e.g., 0, 60, 120, or 300
+     * seconds--are supported. If an invalid value is given, an
+     * error will be returned. When choosing a duration, it is useful to
+     * keep in mind the frequency of the underlying time series data
+     * (which may also be affected by any alignments specified in the
+     * `aggregations` field); a good duration is long enough so that a single
+     * outlier does not generate spurious alerts, but short enough that
+     * unhealthy states are detected and alerted on quickly.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration duration = 2;</code>
+     */
+    protected $duration = null;
+    /**
+     * The number/percent of time series for which the comparison must hold
+     * in order for the condition to trigger. If unspecified, then the
+     * condition will trigger if the comparison is true for any of the
+     * time series that have been identified by `filter` and `aggregations`,
+     * or by the ratio, if `denominator_filter` and `denominator_aggregations`
+     * are specified.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.Trigger trigger = 3;</code>
+     */
+    protected $trigger = null;
+    /**
+     * A condition control that determines how metric-threshold conditions
+     * are evaluated when data stops arriving.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.EvaluationMissingData evaluation_missing_data = 4;</code>
+     */
+    protected $evaluation_missing_data = 0;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $query
+     *           [Monitoring Query Language](https://cloud.google.com/monitoring/mql)
+     *           query that outputs a boolean stream.
+     *     @type \Google\Protobuf\Duration $duration
+     *           The amount of time that a time series must violate the
+     *           threshold to be considered failing. Currently, only values
+     *           that are a multiple of a minute--e.g., 0, 60, 120, or 300
+     *           seconds--are supported. If an invalid value is given, an
+     *           error will be returned. When choosing a duration, it is useful to
+     *           keep in mind the frequency of the underlying time series data
+     *           (which may also be affected by any alignments specified in the
+     *           `aggregations` field); a good duration is long enough so that a single
+     *           outlier does not generate spurious alerts, but short enough that
+     *           unhealthy states are detected and alerted on quickly.
+     *     @type \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\Trigger $trigger
+     *           The number/percent of time series for which the comparison must hold
+     *           in order for the condition to trigger. If unspecified, then the
+     *           condition will trigger if the comparison is true for any of the
+     *           time series that have been identified by `filter` and `aggregations`,
+     *           or by the ratio, if `denominator_filter` and `denominator_aggregations`
+     *           are specified.
+     *     @type int $evaluation_missing_data
+     *           A condition control that determines how metric-threshold conditions
+     *           are evaluated when data stops arriving.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Alert::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * [Monitoring Query Language](https://cloud.google.com/monitoring/mql)
+     * query that outputs a boolean stream.
+     *
+     * Generated from protobuf field <code>string query = 1;</code>
+     * @return string
+     */
+    public function getQuery()
+    {
+        return $this->query;
+    }
+
+    /**
+     * [Monitoring Query Language](https://cloud.google.com/monitoring/mql)
+     * query that outputs a boolean stream.
+     *
+     * Generated from protobuf field <code>string query = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setQuery($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->query = $var;
+
+        return $this;
+    }
+
+    /**
+     * The amount of time that a time series must violate the
+     * threshold to be considered failing. Currently, only values
+     * that are a multiple of a minute--e.g., 0, 60, 120, or 300
+     * seconds--are supported. If an invalid value is given, an
+     * error will be returned. When choosing a duration, it is useful to
+     * keep in mind the frequency of the underlying time series data
+     * (which may also be affected by any alignments specified in the
+     * `aggregations` field); a good duration is long enough so that a single
+     * outlier does not generate spurious alerts, but short enough that
+     * unhealthy states are detected and alerted on quickly.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration duration = 2;</code>
+     * @return \Google\Protobuf\Duration|null
+     */
+    public function getDuration()
+    {
+        return $this->duration;
+    }
+
+    public function hasDuration()
+    {
+        return isset($this->duration);
+    }
+
+    public function clearDuration()
+    {
+        unset($this->duration);
+    }
+
+    /**
+     * The amount of time that a time series must violate the
+     * threshold to be considered failing. Currently, only values
+     * that are a multiple of a minute--e.g., 0, 60, 120, or 300
+     * seconds--are supported. If an invalid value is given, an
+     * error will be returned. When choosing a duration, it is useful to
+     * keep in mind the frequency of the underlying time series data
+     * (which may also be affected by any alignments specified in the
+     * `aggregations` field); a good duration is long enough so that a single
+     * outlier does not generate spurious alerts, but short enough that
+     * unhealthy states are detected and alerted on quickly.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration duration = 2;</code>
+     * @param \Google\Protobuf\Duration $var
+     * @return $this
+     */
+    public function setDuration($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\Duration::class);
+        $this->duration = $var;
+
+        return $this;
+    }
+
+    /**
+     * The number/percent of time series for which the comparison must hold
+     * in order for the condition to trigger. If unspecified, then the
+     * condition will trigger if the comparison is true for any of the
+     * time series that have been identified by `filter` and `aggregations`,
+     * or by the ratio, if `denominator_filter` and `denominator_aggregations`
+     * are specified.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.Trigger trigger = 3;</code>
+     * @return \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\Trigger|null
+     */
+    public function getTrigger()
+    {
+        return $this->trigger;
+    }
+
+    public function hasTrigger()
+    {
+        return isset($this->trigger);
+    }
+
+    public function clearTrigger()
+    {
+        unset($this->trigger);
+    }
+
+    /**
+     * The number/percent of time series for which the comparison must hold
+     * in order for the condition to trigger. If unspecified, then the
+     * condition will trigger if the comparison is true for any of the
+     * time series that have been identified by `filter` and `aggregations`,
+     * or by the ratio, if `denominator_filter` and `denominator_aggregations`
+     * are specified.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.Trigger trigger = 3;</code>
+     * @param \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\Trigger $var
+     * @return $this
+     */
+    public function setTrigger($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\Trigger::class);
+        $this->trigger = $var;
+
+        return $this;
+    }
+
+    /**
+     * A condition control that determines how metric-threshold conditions
+     * are evaluated when data stops arriving.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.EvaluationMissingData evaluation_missing_data = 4;</code>
+     * @return int
+     */
+    public function getEvaluationMissingData()
+    {
+        return $this->evaluation_missing_data;
+    }
+
+    /**
+     * A condition control that determines how metric-threshold conditions
+     * are evaluated when data stops arriving.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.EvaluationMissingData evaluation_missing_data = 4;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setEvaluationMissingData($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\EvaluationMissingData::class);
+        $this->evaluation_missing_data = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(MonitoringQueryLanguageCondition::class, \Google\Cloud\Monitoring\V3\AlertPolicy_Condition_MonitoringQueryLanguageCondition::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/PrometheusQueryLanguageCondition.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/PrometheusQueryLanguageCondition.php
new file mode 100644
index 000000000000..a35357c0377f
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/PrometheusQueryLanguageCondition.php
@@ -0,0 +1,491 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert.proto
+
+namespace Google\Cloud\Monitoring\V3\AlertPolicy\Condition;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A condition type that allows alerting policies to be defined using
+ * [Prometheus Query Language
+ * (PromQL)](https://prometheus.io/docs/prometheus/latest/querying/basics/).
+ * The PrometheusQueryLanguageCondition message contains information
+ * from a Prometheus alerting rule and its associated rule group.
+ * A Prometheus alerting rule is described
+ * [here](https://prometheus.io/docs/prometheus/latest/configuration/alerting_rules/).
+ * The semantics of a Prometheus alerting rule is described
+ * [here](https://prometheus.io/docs/prometheus/latest/configuration/recording_rules/#rule).
+ * A Prometheus rule group is described
+ * [here](https://prometheus.io/docs/prometheus/latest/configuration/recording_rules/).
+ * The semantics of a Prometheus rule group is described
+ * [here](https://prometheus.io/docs/prometheus/latest/configuration/recording_rules/#rule_group).
+ * Because Cloud Alerting has no representation of a Prometheus rule
+ * group resource, we must embed the information of the parent rule
+ * group inside each of the conditions that refer to it. We must also
+ * update the contents of all Prometheus alerts in case the information
+ * of their rule group changes.
+ * The PrometheusQueryLanguageCondition protocol buffer combines the
+ * information of the corresponding rule group and alerting rule.
+ * The structure of the PrometheusQueryLanguageCondition protocol buffer
+ * does NOT mimic the structure of the Prometheus rule group and alerting
+ * rule YAML declarations. The PrometheusQueryLanguageCondition protocol
+ * buffer may change in the future to support future rule group and/or
+ * alerting rule features. There are no new such features at the present
+ * time (2023-06-26).
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.AlertPolicy.Condition.PrometheusQueryLanguageCondition</code>
+ */
+class PrometheusQueryLanguageCondition extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The PromQL expression to evaluate. Every evaluation cycle
+     * this expression is evaluated at the current time, and all resultant
+     * time series become pending/firing alerts. This field must not be empty.
+     *
+     * Generated from protobuf field <code>string query = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $query = '';
+    /**
+     * Optional. Alerts are considered firing once their PromQL expression was
+     * evaluated to be "true" for this long.
+     * Alerts whose PromQL expression was not evaluated to be "true" for
+     * long enough are considered pending.
+     * Must be a non-negative duration or missing.
+     * This field is optional. Its default value is zero.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration duration = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    protected $duration = null;
+    /**
+     * Optional. How often this rule should be evaluated.
+     * Must be a positive multiple of 30 seconds or missing.
+     * This field is optional. Its default value is 30 seconds.
+     * If this PrometheusQueryLanguageCondition was generated from a
+     * Prometheus alerting rule, then this value should be taken from the
+     * enclosing rule group.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration evaluation_interval = 3 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    protected $evaluation_interval = null;
+    /**
+     * Optional. Labels to add to or overwrite in the PromQL query result.
+     * Label names [must be
+     * valid](https://prometheus.io/docs/concepts/data_model/#metric-names-and-labels).
+     * Label values can be [templatized by using
+     * variables](https://cloud.google.com/monitoring/alerts/doc-variables#doc-vars).
+     * The only available variable names are the names of the labels in the
+     * PromQL result, including "__name__" and "value". "labels" may be empty.
+     *
+     * Generated from protobuf field <code>map<string, string> labels = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    private $labels;
+    /**
+     * Optional. The rule group name of this alert in the corresponding
+     * Prometheus configuration file.
+     * Some external tools may require this field to be populated correctly
+     * in order to refer to the original Prometheus configuration file.
+     * The rule group name and the alert name are necessary to update the
+     * relevant AlertPolicies in case the definition of the rule group changes
+     * in the future.
+     * This field is optional. If this field is not empty, then it must
+     * contain a valid UTF-8 string.
+     * This field may not exceed 2048 Unicode characters in length.
+     *
+     * Generated from protobuf field <code>string rule_group = 5 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    protected $rule_group = '';
+    /**
+     * Optional. The alerting rule name of this alert in the corresponding
+     * Prometheus configuration file.
+     * Some external tools may require this field to be populated correctly
+     * in order to refer to the original Prometheus configuration file.
+     * The rule group name and the alert name are necessary to update the
+     * relevant AlertPolicies in case the definition of the rule group changes
+     * in the future.
+     * This field is optional. If this field is not empty, then it must be a
+     * [valid Prometheus label
+     * name](https://prometheus.io/docs/concepts/data_model/#metric-names-and-labels).
+     * This field may not exceed 2048 Unicode characters in length.
+     *
+     * Generated from protobuf field <code>string alert_rule = 6 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    protected $alert_rule = '';
+    /**
+     * Optional. Whether to disable metric existence validation for this
+     * condition.
+     * This allows alerting policies to be defined on metrics that do not yet
+     * exist, improving advanced customer workflows such as configuring
+     * alerting policies using Terraform.
+     * Users with the `monitoring.alertPolicyViewer` role are able to see the
+     * name of the non-existent metric in the alerting policy condition.
+     *
+     * Generated from protobuf field <code>bool disable_metric_validation = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    protected $disable_metric_validation = false;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $query
+     *           Required. The PromQL expression to evaluate. Every evaluation cycle
+     *           this expression is evaluated at the current time, and all resultant
+     *           time series become pending/firing alerts. This field must not be empty.
+     *     @type \Google\Protobuf\Duration $duration
+     *           Optional. Alerts are considered firing once their PromQL expression was
+     *           evaluated to be "true" for this long.
+     *           Alerts whose PromQL expression was not evaluated to be "true" for
+     *           long enough are considered pending.
+     *           Must be a non-negative duration or missing.
+     *           This field is optional. Its default value is zero.
+     *     @type \Google\Protobuf\Duration $evaluation_interval
+     *           Optional. How often this rule should be evaluated.
+     *           Must be a positive multiple of 30 seconds or missing.
+     *           This field is optional. Its default value is 30 seconds.
+     *           If this PrometheusQueryLanguageCondition was generated from a
+     *           Prometheus alerting rule, then this value should be taken from the
+     *           enclosing rule group.
+     *     @type array|\Google\Protobuf\Internal\MapField $labels
+     *           Optional. Labels to add to or overwrite in the PromQL query result.
+     *           Label names [must be
+     *           valid](https://prometheus.io/docs/concepts/data_model/#metric-names-and-labels).
+     *           Label values can be [templatized by using
+     *           variables](https://cloud.google.com/monitoring/alerts/doc-variables#doc-vars).
+     *           The only available variable names are the names of the labels in the
+     *           PromQL result, including "__name__" and "value". "labels" may be empty.
+     *     @type string $rule_group
+     *           Optional. The rule group name of this alert in the corresponding
+     *           Prometheus configuration file.
+     *           Some external tools may require this field to be populated correctly
+     *           in order to refer to the original Prometheus configuration file.
+     *           The rule group name and the alert name are necessary to update the
+     *           relevant AlertPolicies in case the definition of the rule group changes
+     *           in the future.
+     *           This field is optional. If this field is not empty, then it must
+     *           contain a valid UTF-8 string.
+     *           This field may not exceed 2048 Unicode characters in length.
+     *     @type string $alert_rule
+     *           Optional. The alerting rule name of this alert in the corresponding
+     *           Prometheus configuration file.
+     *           Some external tools may require this field to be populated correctly
+     *           in order to refer to the original Prometheus configuration file.
+     *           The rule group name and the alert name are necessary to update the
+     *           relevant AlertPolicies in case the definition of the rule group changes
+     *           in the future.
+     *           This field is optional. If this field is not empty, then it must be a
+     *           [valid Prometheus label
+     *           name](https://prometheus.io/docs/concepts/data_model/#metric-names-and-labels).
+     *           This field may not exceed 2048 Unicode characters in length.
+     *     @type bool $disable_metric_validation
+     *           Optional. Whether to disable metric existence validation for this
+     *           condition.
+     *           This allows alerting policies to be defined on metrics that do not yet
+     *           exist, improving advanced customer workflows such as configuring
+     *           alerting policies using Terraform.
+     *           Users with the `monitoring.alertPolicyViewer` role are able to see the
+     *           name of the non-existent metric in the alerting policy condition.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Alert::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The PromQL expression to evaluate. Every evaluation cycle
+     * this expression is evaluated at the current time, and all resultant
+     * time series become pending/firing alerts. This field must not be empty.
+     *
+     * Generated from protobuf field <code>string query = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return string
+     */
+    public function getQuery()
+    {
+        return $this->query;
+    }
+
+    /**
+     * Required. The PromQL expression to evaluate. Every evaluation cycle
+     * this expression is evaluated at the current time, and all resultant
+     * time series become pending/firing alerts. This field must not be empty.
+     *
+     * Generated from protobuf field <code>string query = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setQuery($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->query = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. Alerts are considered firing once their PromQL expression was
+     * evaluated to be "true" for this long.
+     * Alerts whose PromQL expression was not evaluated to be "true" for
+     * long enough are considered pending.
+     * Must be a non-negative duration or missing.
+     * This field is optional. Its default value is zero.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration duration = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return \Google\Protobuf\Duration|null
+     */
+    public function getDuration()
+    {
+        return $this->duration;
+    }
+
+    public function hasDuration()
+    {
+        return isset($this->duration);
+    }
+
+    public function clearDuration()
+    {
+        unset($this->duration);
+    }
+
+    /**
+     * Optional. Alerts are considered firing once their PromQL expression was
+     * evaluated to be "true" for this long.
+     * Alerts whose PromQL expression was not evaluated to be "true" for
+     * long enough are considered pending.
+     * Must be a non-negative duration or missing.
+     * This field is optional. Its default value is zero.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration duration = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param \Google\Protobuf\Duration $var
+     * @return $this
+     */
+    public function setDuration($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\Duration::class);
+        $this->duration = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. How often this rule should be evaluated.
+     * Must be a positive multiple of 30 seconds or missing.
+     * This field is optional. Its default value is 30 seconds.
+     * If this PrometheusQueryLanguageCondition was generated from a
+     * Prometheus alerting rule, then this value should be taken from the
+     * enclosing rule group.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration evaluation_interval = 3 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return \Google\Protobuf\Duration|null
+     */
+    public function getEvaluationInterval()
+    {
+        return $this->evaluation_interval;
+    }
+
+    public function hasEvaluationInterval()
+    {
+        return isset($this->evaluation_interval);
+    }
+
+    public function clearEvaluationInterval()
+    {
+        unset($this->evaluation_interval);
+    }
+
+    /**
+     * Optional. How often this rule should be evaluated.
+     * Must be a positive multiple of 30 seconds or missing.
+     * This field is optional. Its default value is 30 seconds.
+     * If this PrometheusQueryLanguageCondition was generated from a
+     * Prometheus alerting rule, then this value should be taken from the
+     * enclosing rule group.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration evaluation_interval = 3 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param \Google\Protobuf\Duration $var
+     * @return $this
+     */
+    public function setEvaluationInterval($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\Duration::class);
+        $this->evaluation_interval = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. Labels to add to or overwrite in the PromQL query result.
+     * Label names [must be
+     * valid](https://prometheus.io/docs/concepts/data_model/#metric-names-and-labels).
+     * Label values can be [templatized by using
+     * variables](https://cloud.google.com/monitoring/alerts/doc-variables#doc-vars).
+     * The only available variable names are the names of the labels in the
+     * PromQL result, including "__name__" and "value". "labels" may be empty.
+     *
+     * Generated from protobuf field <code>map<string, string> labels = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return \Google\Protobuf\Internal\MapField
+     */
+    public function getLabels()
+    {
+        return $this->labels;
+    }
+
+    /**
+     * Optional. Labels to add to or overwrite in the PromQL query result.
+     * Label names [must be
+     * valid](https://prometheus.io/docs/concepts/data_model/#metric-names-and-labels).
+     * Label values can be [templatized by using
+     * variables](https://cloud.google.com/monitoring/alerts/doc-variables#doc-vars).
+     * The only available variable names are the names of the labels in the
+     * PromQL result, including "__name__" and "value". "labels" may be empty.
+     *
+     * Generated from protobuf field <code>map<string, string> labels = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param array|\Google\Protobuf\Internal\MapField $var
+     * @return $this
+     */
+    public function setLabels($var)
+    {
+        $arr = GPBUtil::checkMapField($var, \Google\Protobuf\Internal\GPBType::STRING, \Google\Protobuf\Internal\GPBType::STRING);
+        $this->labels = $arr;
+
+        return $this;
+    }
+
+    /**
+     * Optional. The rule group name of this alert in the corresponding
+     * Prometheus configuration file.
+     * Some external tools may require this field to be populated correctly
+     * in order to refer to the original Prometheus configuration file.
+     * The rule group name and the alert name are necessary to update the
+     * relevant AlertPolicies in case the definition of the rule group changes
+     * in the future.
+     * This field is optional. If this field is not empty, then it must
+     * contain a valid UTF-8 string.
+     * This field may not exceed 2048 Unicode characters in length.
+     *
+     * Generated from protobuf field <code>string rule_group = 5 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return string
+     */
+    public function getRuleGroup()
+    {
+        return $this->rule_group;
+    }
+
+    /**
+     * Optional. The rule group name of this alert in the corresponding
+     * Prometheus configuration file.
+     * Some external tools may require this field to be populated correctly
+     * in order to refer to the original Prometheus configuration file.
+     * The rule group name and the alert name are necessary to update the
+     * relevant AlertPolicies in case the definition of the rule group changes
+     * in the future.
+     * This field is optional. If this field is not empty, then it must
+     * contain a valid UTF-8 string.
+     * This field may not exceed 2048 Unicode characters in length.
+     *
+     * Generated from protobuf field <code>string rule_group = 5 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setRuleGroup($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->rule_group = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. The alerting rule name of this alert in the corresponding
+     * Prometheus configuration file.
+     * Some external tools may require this field to be populated correctly
+     * in order to refer to the original Prometheus configuration file.
+     * The rule group name and the alert name are necessary to update the
+     * relevant AlertPolicies in case the definition of the rule group changes
+     * in the future.
+     * This field is optional. If this field is not empty, then it must be a
+     * [valid Prometheus label
+     * name](https://prometheus.io/docs/concepts/data_model/#metric-names-and-labels).
+     * This field may not exceed 2048 Unicode characters in length.
+     *
+     * Generated from protobuf field <code>string alert_rule = 6 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return string
+     */
+    public function getAlertRule()
+    {
+        return $this->alert_rule;
+    }
+
+    /**
+     * Optional. The alerting rule name of this alert in the corresponding
+     * Prometheus configuration file.
+     * Some external tools may require this field to be populated correctly
+     * in order to refer to the original Prometheus configuration file.
+     * The rule group name and the alert name are necessary to update the
+     * relevant AlertPolicies in case the definition of the rule group changes
+     * in the future.
+     * This field is optional. If this field is not empty, then it must be a
+     * [valid Prometheus label
+     * name](https://prometheus.io/docs/concepts/data_model/#metric-names-and-labels).
+     * This field may not exceed 2048 Unicode characters in length.
+     *
+     * Generated from protobuf field <code>string alert_rule = 6 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setAlertRule($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->alert_rule = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. Whether to disable metric existence validation for this
+     * condition.
+     * This allows alerting policies to be defined on metrics that do not yet
+     * exist, improving advanced customer workflows such as configuring
+     * alerting policies using Terraform.
+     * Users with the `monitoring.alertPolicyViewer` role are able to see the
+     * name of the non-existent metric in the alerting policy condition.
+     *
+     * Generated from protobuf field <code>bool disable_metric_validation = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return bool
+     */
+    public function getDisableMetricValidation()
+    {
+        return $this->disable_metric_validation;
+    }
+
+    /**
+     * Optional. Whether to disable metric existence validation for this
+     * condition.
+     * This allows alerting policies to be defined on metrics that do not yet
+     * exist, improving advanced customer workflows such as configuring
+     * alerting policies using Terraform.
+     * Users with the `monitoring.alertPolicyViewer` role are able to see the
+     * name of the non-existent metric in the alerting policy condition.
+     *
+     * Generated from protobuf field <code>bool disable_metric_validation = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param bool $var
+     * @return $this
+     */
+    public function setDisableMetricValidation($var)
+    {
+        GPBUtil::checkBool($var);
+        $this->disable_metric_validation = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(PrometheusQueryLanguageCondition::class, \Google\Cloud\Monitoring\V3\AlertPolicy_Condition_PrometheusQueryLanguageCondition::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/SqlCondition.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/SqlCondition.php
new file mode 100644
index 000000000000..e04212f27c57
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/SqlCondition.php
@@ -0,0 +1,303 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert.proto
+
+namespace Google\Cloud\Monitoring\V3\AlertPolicy\Condition;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A condition that allows alerting policies to be defined using GoogleSQL.
+ * SQL conditions examine a sliding window of logs using GoogleSQL.
+ * Alert policies with SQL conditions may incur additional billing.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.AlertPolicy.Condition.SqlCondition</code>
+ */
+class SqlCondition extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The Log Analytics SQL query to run, as a string.  The query
+     * must conform to the required shape. Specifically, the query must not
+     * try to filter the input by time.  A filter will automatically be
+     * applied to filter the input so that the query receives all rows
+     * received since the last time the query was run.
+     * For example, the following query extracts all log entries containing an
+     * HTTP request:
+     *     SELECT
+     *       timestamp, log_name, severity, http_request, resource, labels
+     *     FROM
+     *       my-project.global._Default._AllLogs
+     *     WHERE
+     *       http_request IS NOT NULL
+     *
+     * Generated from protobuf field <code>string query = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $query = '';
+    protected $schedule;
+    protected $evaluate;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $query
+     *           Required. The Log Analytics SQL query to run, as a string.  The query
+     *           must conform to the required shape. Specifically, the query must not
+     *           try to filter the input by time.  A filter will automatically be
+     *           applied to filter the input so that the query receives all rows
+     *           received since the last time the query was run.
+     *           For example, the following query extracts all log entries containing an
+     *           HTTP request:
+     *               SELECT
+     *                 timestamp, log_name, severity, http_request, resource, labels
+     *               FROM
+     *                 my-project.global._Default._AllLogs
+     *               WHERE
+     *                 http_request IS NOT NULL
+     *     @type \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition\Minutes $minutes
+     *           Schedule the query to execute every so many minutes.
+     *     @type \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition\Hourly $hourly
+     *           Schedule the query to execute every so many hours.
+     *     @type \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition\Daily $daily
+     *           Schedule the query to execute every so many days.
+     *     @type \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition\RowCountTest $row_count_test
+     *           Test the row count against a threshold.
+     *     @type \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition\BooleanTest $boolean_test
+     *           Test the boolean value in the indicated column.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Alert::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The Log Analytics SQL query to run, as a string.  The query
+     * must conform to the required shape. Specifically, the query must not
+     * try to filter the input by time.  A filter will automatically be
+     * applied to filter the input so that the query receives all rows
+     * received since the last time the query was run.
+     * For example, the following query extracts all log entries containing an
+     * HTTP request:
+     *     SELECT
+     *       timestamp, log_name, severity, http_request, resource, labels
+     *     FROM
+     *       my-project.global._Default._AllLogs
+     *     WHERE
+     *       http_request IS NOT NULL
+     *
+     * Generated from protobuf field <code>string query = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return string
+     */
+    public function getQuery()
+    {
+        return $this->query;
+    }
+
+    /**
+     * Required. The Log Analytics SQL query to run, as a string.  The query
+     * must conform to the required shape. Specifically, the query must not
+     * try to filter the input by time.  A filter will automatically be
+     * applied to filter the input so that the query receives all rows
+     * received since the last time the query was run.
+     * For example, the following query extracts all log entries containing an
+     * HTTP request:
+     *     SELECT
+     *       timestamp, log_name, severity, http_request, resource, labels
+     *     FROM
+     *       my-project.global._Default._AllLogs
+     *     WHERE
+     *       http_request IS NOT NULL
+     *
+     * Generated from protobuf field <code>string query = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setQuery($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->query = $var;
+
+        return $this;
+    }
+
+    /**
+     * Schedule the query to execute every so many minutes.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.SqlCondition.Minutes minutes = 2;</code>
+     * @return \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition\Minutes|null
+     */
+    public function getMinutes()
+    {
+        return $this->readOneof(2);
+    }
+
+    public function hasMinutes()
+    {
+        return $this->hasOneof(2);
+    }
+
+    /**
+     * Schedule the query to execute every so many minutes.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.SqlCondition.Minutes minutes = 2;</code>
+     * @param \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition\Minutes $var
+     * @return $this
+     */
+    public function setMinutes($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition\Minutes::class);
+        $this->writeOneof(2, $var);
+
+        return $this;
+    }
+
+    /**
+     * Schedule the query to execute every so many hours.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.SqlCondition.Hourly hourly = 3;</code>
+     * @return \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition\Hourly|null
+     */
+    public function getHourly()
+    {
+        return $this->readOneof(3);
+    }
+
+    public function hasHourly()
+    {
+        return $this->hasOneof(3);
+    }
+
+    /**
+     * Schedule the query to execute every so many hours.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.SqlCondition.Hourly hourly = 3;</code>
+     * @param \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition\Hourly $var
+     * @return $this
+     */
+    public function setHourly($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition\Hourly::class);
+        $this->writeOneof(3, $var);
+
+        return $this;
+    }
+
+    /**
+     * Schedule the query to execute every so many days.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.SqlCondition.Daily daily = 4;</code>
+     * @return \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition\Daily|null
+     */
+    public function getDaily()
+    {
+        return $this->readOneof(4);
+    }
+
+    public function hasDaily()
+    {
+        return $this->hasOneof(4);
+    }
+
+    /**
+     * Schedule the query to execute every so many days.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.SqlCondition.Daily daily = 4;</code>
+     * @param \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition\Daily $var
+     * @return $this
+     */
+    public function setDaily($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition\Daily::class);
+        $this->writeOneof(4, $var);
+
+        return $this;
+    }
+
+    /**
+     * Test the row count against a threshold.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.SqlCondition.RowCountTest row_count_test = 5;</code>
+     * @return \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition\RowCountTest|null
+     */
+    public function getRowCountTest()
+    {
+        return $this->readOneof(5);
+    }
+
+    public function hasRowCountTest()
+    {
+        return $this->hasOneof(5);
+    }
+
+    /**
+     * Test the row count against a threshold.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.SqlCondition.RowCountTest row_count_test = 5;</code>
+     * @param \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition\RowCountTest $var
+     * @return $this
+     */
+    public function setRowCountTest($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition\RowCountTest::class);
+        $this->writeOneof(5, $var);
+
+        return $this;
+    }
+
+    /**
+     * Test the boolean value in the indicated column.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.SqlCondition.BooleanTest boolean_test = 6;</code>
+     * @return \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition\BooleanTest|null
+     */
+    public function getBooleanTest()
+    {
+        return $this->readOneof(6);
+    }
+
+    public function hasBooleanTest()
+    {
+        return $this->hasOneof(6);
+    }
+
+    /**
+     * Test the boolean value in the indicated column.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy.Condition.SqlCondition.BooleanTest boolean_test = 6;</code>
+     * @param \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition\BooleanTest $var
+     * @return $this
+     */
+    public function setBooleanTest($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition\BooleanTest::class);
+        $this->writeOneof(6, $var);
+
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getSchedule()
+    {
+        return $this->whichOneof("schedule");
+    }
+
+    /**
+     * @return string
+     */
+    public function getEvaluate()
+    {
+        return $this->whichOneof("evaluate");
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(SqlCondition::class, \Google\Cloud\Monitoring\V3\AlertPolicy_Condition_SqlCondition::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/SqlCondition/BooleanTest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/SqlCondition/BooleanTest.php
new file mode 100644
index 000000000000..f3201e398e6b
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/SqlCondition/BooleanTest.php
@@ -0,0 +1,75 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert.proto
+
+namespace Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A test that uses an alerting result in a boolean column produced by
+ * the SQL query.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.AlertPolicy.Condition.SqlCondition.BooleanTest</code>
+ */
+class BooleanTest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The name of the column containing the boolean value. If the
+     * value in a row is NULL, that row is ignored.
+     *
+     * Generated from protobuf field <code>string column = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $column = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $column
+     *           Required. The name of the column containing the boolean value. If the
+     *           value in a row is NULL, that row is ignored.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Alert::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The name of the column containing the boolean value. If the
+     * value in a row is NULL, that row is ignored.
+     *
+     * Generated from protobuf field <code>string column = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return string
+     */
+    public function getColumn()
+    {
+        return $this->column;
+    }
+
+    /**
+     * Required. The name of the column containing the boolean value. If the
+     * value in a row is NULL, that row is ignored.
+     *
+     * Generated from protobuf field <code>string column = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setColumn($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->column = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(BooleanTest::class, \Google\Cloud\Monitoring\V3\AlertPolicy_Condition_SqlCondition_BooleanTest::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/SqlCondition/Daily.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/SqlCondition/Daily.php
new file mode 100644
index 000000000000..bc3e1df46a54
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/SqlCondition/Daily.php
@@ -0,0 +1,126 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert.proto
+
+namespace Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Used to schedule the query to run every so many days.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.AlertPolicy.Condition.SqlCondition.Daily</code>
+ */
+class Daily extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The number of days between runs. Must be greater than or
+     * equal to 1 day and less than or equal to 31 days.
+     *
+     * Generated from protobuf field <code>int32 periodicity = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $periodicity = 0;
+    /**
+     * Optional. The time of day (in UTC) at which the query should run. If
+     * left unspecified, the server picks an arbitrary time of day and runs
+     * the query at the same time each day.
+     *
+     * Generated from protobuf field <code>.google.type.TimeOfDay execution_time = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    protected $execution_time = null;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type int $periodicity
+     *           Required. The number of days between runs. Must be greater than or
+     *           equal to 1 day and less than or equal to 31 days.
+     *     @type \Google\Type\TimeOfDay $execution_time
+     *           Optional. The time of day (in UTC) at which the query should run. If
+     *           left unspecified, the server picks an arbitrary time of day and runs
+     *           the query at the same time each day.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Alert::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The number of days between runs. Must be greater than or
+     * equal to 1 day and less than or equal to 31 days.
+     *
+     * Generated from protobuf field <code>int32 periodicity = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return int
+     */
+    public function getPeriodicity()
+    {
+        return $this->periodicity;
+    }
+
+    /**
+     * Required. The number of days between runs. Must be greater than or
+     * equal to 1 day and less than or equal to 31 days.
+     *
+     * Generated from protobuf field <code>int32 periodicity = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setPeriodicity($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->periodicity = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. The time of day (in UTC) at which the query should run. If
+     * left unspecified, the server picks an arbitrary time of day and runs
+     * the query at the same time each day.
+     *
+     * Generated from protobuf field <code>.google.type.TimeOfDay execution_time = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return \Google\Type\TimeOfDay|null
+     */
+    public function getExecutionTime()
+    {
+        return $this->execution_time;
+    }
+
+    public function hasExecutionTime()
+    {
+        return isset($this->execution_time);
+    }
+
+    public function clearExecutionTime()
+    {
+        unset($this->execution_time);
+    }
+
+    /**
+     * Optional. The time of day (in UTC) at which the query should run. If
+     * left unspecified, the server picks an arbitrary time of day and runs
+     * the query at the same time each day.
+     *
+     * Generated from protobuf field <code>.google.type.TimeOfDay execution_time = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param \Google\Type\TimeOfDay $var
+     * @return $this
+     */
+    public function setExecutionTime($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Type\TimeOfDay::class);
+        $this->execution_time = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(Daily::class, \Google\Cloud\Monitoring\V3\AlertPolicy_Condition_SqlCondition_Daily::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/SqlCondition/Hourly.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/SqlCondition/Hourly.php
new file mode 100644
index 000000000000..bd6e550132e0
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/SqlCondition/Hourly.php
@@ -0,0 +1,130 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert.proto
+
+namespace Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Used to schedule the query to run every so many hours.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.AlertPolicy.Condition.SqlCondition.Hourly</code>
+ */
+class Hourly extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The number of hours between runs. Must be greater than or
+     * equal to 1 hour and less than or equal to 48 hours.
+     *
+     * Generated from protobuf field <code>int32 periodicity = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $periodicity = 0;
+    /**
+     * Optional. The number of minutes after the hour (in UTC) to run the
+     * query. Must be greater than or equal to 0 minutes and less than or
+     * equal to 59 minutes.  If left unspecified, then an arbitrary offset
+     * is used.
+     *
+     * Generated from protobuf field <code>optional int32 minute_offset = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    protected $minute_offset = null;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type int $periodicity
+     *           Required. The number of hours between runs. Must be greater than or
+     *           equal to 1 hour and less than or equal to 48 hours.
+     *     @type int $minute_offset
+     *           Optional. The number of minutes after the hour (in UTC) to run the
+     *           query. Must be greater than or equal to 0 minutes and less than or
+     *           equal to 59 minutes.  If left unspecified, then an arbitrary offset
+     *           is used.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Alert::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The number of hours between runs. Must be greater than or
+     * equal to 1 hour and less than or equal to 48 hours.
+     *
+     * Generated from protobuf field <code>int32 periodicity = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return int
+     */
+    public function getPeriodicity()
+    {
+        return $this->periodicity;
+    }
+
+    /**
+     * Required. The number of hours between runs. Must be greater than or
+     * equal to 1 hour and less than or equal to 48 hours.
+     *
+     * Generated from protobuf field <code>int32 periodicity = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setPeriodicity($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->periodicity = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. The number of minutes after the hour (in UTC) to run the
+     * query. Must be greater than or equal to 0 minutes and less than or
+     * equal to 59 minutes.  If left unspecified, then an arbitrary offset
+     * is used.
+     *
+     * Generated from protobuf field <code>optional int32 minute_offset = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return int
+     */
+    public function getMinuteOffset()
+    {
+        return isset($this->minute_offset) ? $this->minute_offset : 0;
+    }
+
+    public function hasMinuteOffset()
+    {
+        return isset($this->minute_offset);
+    }
+
+    public function clearMinuteOffset()
+    {
+        unset($this->minute_offset);
+    }
+
+    /**
+     * Optional. The number of minutes after the hour (in UTC) to run the
+     * query. Must be greater than or equal to 0 minutes and less than or
+     * equal to 59 minutes.  If left unspecified, then an arbitrary offset
+     * is used.
+     *
+     * Generated from protobuf field <code>optional int32 minute_offset = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setMinuteOffset($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->minute_offset = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(Hourly::class, \Google\Cloud\Monitoring\V3\AlertPolicy_Condition_SqlCondition_Hourly::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/SqlCondition/Minutes.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/SqlCondition/Minutes.php
new file mode 100644
index 000000000000..dacff07a3458
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/SqlCondition/Minutes.php
@@ -0,0 +1,78 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert.proto
+
+namespace Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Used to schedule the query to run every so many minutes.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.AlertPolicy.Condition.SqlCondition.Minutes</code>
+ */
+class Minutes extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. Number of minutes between runs. The interval must be
+     * greater than or equal to 5 minutes and less than or equal to 1440
+     * minutes.
+     *
+     * Generated from protobuf field <code>int32 periodicity = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $periodicity = 0;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type int $periodicity
+     *           Required. Number of minutes between runs. The interval must be
+     *           greater than or equal to 5 minutes and less than or equal to 1440
+     *           minutes.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Alert::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. Number of minutes between runs. The interval must be
+     * greater than or equal to 5 minutes and less than or equal to 1440
+     * minutes.
+     *
+     * Generated from protobuf field <code>int32 periodicity = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return int
+     */
+    public function getPeriodicity()
+    {
+        return $this->periodicity;
+    }
+
+    /**
+     * Required. Number of minutes between runs. The interval must be
+     * greater than or equal to 5 minutes and less than or equal to 1440
+     * minutes.
+     *
+     * Generated from protobuf field <code>int32 periodicity = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setPeriodicity($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->periodicity = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(Minutes::class, \Google\Cloud\Monitoring\V3\AlertPolicy_Condition_SqlCondition_Minutes::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/SqlCondition/RowCountTest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/SqlCondition/RowCountTest.php
new file mode 100644
index 000000000000..033006775a06
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/SqlCondition/RowCountTest.php
@@ -0,0 +1,109 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert.proto
+
+namespace Google\Cloud\Monitoring\V3\AlertPolicy\Condition\SqlCondition;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A test that checks if the number of rows in the result set
+ * violates some threshold.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.AlertPolicy.Condition.SqlCondition.RowCountTest</code>
+ */
+class RowCountTest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The comparison to apply between the number of rows returned
+     * by the query and the threshold.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.ComparisonType comparison = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $comparison = 0;
+    /**
+     * Required. The value against which to compare the row count.
+     *
+     * Generated from protobuf field <code>int64 threshold = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $threshold = 0;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type int $comparison
+     *           Required. The comparison to apply between the number of rows returned
+     *           by the query and the threshold.
+     *     @type int|string $threshold
+     *           Required. The value against which to compare the row count.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Alert::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The comparison to apply between the number of rows returned
+     * by the query and the threshold.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.ComparisonType comparison = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return int
+     */
+    public function getComparison()
+    {
+        return $this->comparison;
+    }
+
+    /**
+     * Required. The comparison to apply between the number of rows returned
+     * by the query and the threshold.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.ComparisonType comparison = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setComparison($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Cloud\Monitoring\V3\ComparisonType::class);
+        $this->comparison = $var;
+
+        return $this;
+    }
+
+    /**
+     * Required. The value against which to compare the row count.
+     *
+     * Generated from protobuf field <code>int64 threshold = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return int|string
+     */
+    public function getThreshold()
+    {
+        return $this->threshold;
+    }
+
+    /**
+     * Required. The value against which to compare the row count.
+     *
+     * Generated from protobuf field <code>int64 threshold = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param int|string $var
+     * @return $this
+     */
+    public function setThreshold($var)
+    {
+        GPBUtil::checkInt64($var);
+        $this->threshold = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(RowCountTest::class, \Google\Cloud\Monitoring\V3\AlertPolicy_Condition_SqlCondition_RowCountTest::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/Trigger.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/Trigger.php
new file mode 100644
index 000000000000..8daaca29380f
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Condition/Trigger.php
@@ -0,0 +1,118 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert.proto
+
+namespace Google\Cloud\Monitoring\V3\AlertPolicy\Condition;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Specifies how many time series must fail a predicate to trigger a
+ * condition. If not specified, then a `{count: 1}` trigger is used.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.AlertPolicy.Condition.Trigger</code>
+ */
+class Trigger extends \Google\Protobuf\Internal\Message
+{
+    protected $type;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type int $count
+     *           The absolute number of time series that must fail
+     *           the predicate for the condition to be triggered.
+     *     @type float $percent
+     *           The percentage of time series that must fail the
+     *           predicate for the condition to be triggered.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Alert::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The absolute number of time series that must fail
+     * the predicate for the condition to be triggered.
+     *
+     * Generated from protobuf field <code>int32 count = 1;</code>
+     * @return int
+     */
+    public function getCount()
+    {
+        return $this->readOneof(1);
+    }
+
+    public function hasCount()
+    {
+        return $this->hasOneof(1);
+    }
+
+    /**
+     * The absolute number of time series that must fail
+     * the predicate for the condition to be triggered.
+     *
+     * Generated from protobuf field <code>int32 count = 1;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setCount($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->writeOneof(1, $var);
+
+        return $this;
+    }
+
+    /**
+     * The percentage of time series that must fail the
+     * predicate for the condition to be triggered.
+     *
+     * Generated from protobuf field <code>double percent = 2;</code>
+     * @return float
+     */
+    public function getPercent()
+    {
+        return $this->readOneof(2);
+    }
+
+    public function hasPercent()
+    {
+        return $this->hasOneof(2);
+    }
+
+    /**
+     * The percentage of time series that must fail the
+     * predicate for the condition to be triggered.
+     *
+     * Generated from protobuf field <code>double percent = 2;</code>
+     * @param float $var
+     * @return $this
+     */
+    public function setPercent($var)
+    {
+        GPBUtil::checkDouble($var);
+        $this->writeOneof(2, $var);
+
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getType()
+    {
+        return $this->whichOneof("type");
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(Trigger::class, \Google\Cloud\Monitoring\V3\AlertPolicy_Condition_Trigger::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/ConditionCombinerType.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/ConditionCombinerType.php
new file mode 100644
index 000000000000..bb9e016f4bd9
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/ConditionCombinerType.php
@@ -0,0 +1,81 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert.proto
+
+namespace Google\Cloud\Monitoring\V3\AlertPolicy;
+
+use UnexpectedValueException;
+
+/**
+ * Operators for combining conditions.
+ *
+ * Protobuf type <code>google.monitoring.v3.AlertPolicy.ConditionCombinerType</code>
+ */
+class ConditionCombinerType
+{
+    /**
+     * An unspecified combiner.
+     *
+     * Generated from protobuf enum <code>COMBINE_UNSPECIFIED = 0;</code>
+     */
+    const COMBINE_UNSPECIFIED = 0;
+    /**
+     * Combine conditions using the logical `AND` operator. An
+     * incident is created only if all the conditions are met
+     * simultaneously. This combiner is satisfied if all conditions are
+     * met, even if they are met on completely different resources.
+     *
+     * Generated from protobuf enum <code>AND = 1;</code>
+     */
+    const PBAND = 1;
+    /**
+     * Combine conditions using the logical `OR` operator. An incident
+     * is created if any of the listed conditions is met.
+     *
+     * Generated from protobuf enum <code>OR = 2;</code>
+     */
+    const PBOR = 2;
+    /**
+     * Combine conditions using logical `AND` operator, but unlike the regular
+     * `AND` option, an incident is created only if all conditions are met
+     * simultaneously on at least one resource.
+     *
+     * Generated from protobuf enum <code>AND_WITH_MATCHING_RESOURCE = 3;</code>
+     */
+    const AND_WITH_MATCHING_RESOURCE = 3;
+
+    private static $valueToName = [
+        self::COMBINE_UNSPECIFIED => 'COMBINE_UNSPECIFIED',
+        self::PBAND => 'AND',
+        self::PBOR => 'OR',
+        self::AND_WITH_MATCHING_RESOURCE => 'AND_WITH_MATCHING_RESOURCE',
+    ];
+
+    public static function name($value)
+    {
+        if (!isset(self::$valueToName[$value])) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no name defined for value %s', __CLASS__, $value));
+        }
+        return self::$valueToName[$value];
+    }
+
+
+    public static function value($name)
+    {
+        $const = __CLASS__ . '::' . strtoupper($name);
+        if (!defined($const)) {
+            $pbconst =  __CLASS__. '::PB' . strtoupper($name);
+            if (!defined($pbconst)) {
+                throw new UnexpectedValueException(sprintf(
+                        'Enum %s has no value defined for name %s', __CLASS__, $name));
+            }
+            return constant($pbconst);
+        }
+        return constant($const);
+    }
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(ConditionCombinerType::class, \Google\Cloud\Monitoring\V3\AlertPolicy_ConditionCombinerType::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Documentation.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Documentation.php
new file mode 100644
index 000000000000..19c93b5e2dff
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Documentation.php
@@ -0,0 +1,245 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert.proto
+
+namespace Google\Cloud\Monitoring\V3\AlertPolicy;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Documentation that is included in the notifications and incidents
+ * pertaining to this policy.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.AlertPolicy.Documentation</code>
+ */
+class Documentation extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The body of the documentation, interpreted according to `mime_type`.
+     * The content may not exceed 8,192 Unicode characters and may not exceed
+     * more than 10,240 bytes when encoded in UTF-8 format, whichever is
+     * smaller. This text can be [templatized by using
+     * variables](https://cloud.google.com/monitoring/alerts/doc-variables#doc-vars).
+     *
+     * Generated from protobuf field <code>string content = 1;</code>
+     */
+    protected $content = '';
+    /**
+     * The format of the `content` field. Presently, only the value
+     * `"text/markdown"` is supported. See
+     * [Markdown](https://en.wikipedia.org/wiki/Markdown) for more information.
+     *
+     * Generated from protobuf field <code>string mime_type = 2;</code>
+     */
+    protected $mime_type = '';
+    /**
+     * Optional. The subject line of the notification. The subject line may not
+     * exceed 10,240 bytes. In notifications generated by this policy, the
+     * contents of the subject line after variable expansion will be truncated
+     * to 255 bytes or shorter at the latest UTF-8 character boundary. The
+     * 255-byte limit is recommended by [this
+     * thread](https://stackoverflow.com/questions/1592291/what-is-the-email-subject-length-limit).
+     * It is both the limit imposed by some third-party ticketing products and
+     * it is common to define textual fields in databases as VARCHAR(255).
+     * The contents of the subject line can be [templatized by using
+     * variables](https://cloud.google.com/monitoring/alerts/doc-variables#doc-vars).
+     * If this field is missing or empty, a default subject line will be
+     * generated.
+     *
+     * Generated from protobuf field <code>string subject = 3 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    protected $subject = '';
+    /**
+     * Optional. Links to content such as playbooks, repositories, and other
+     * resources. This field can contain up to 3 entries.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.AlertPolicy.Documentation.Link links = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    private $links;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $content
+     *           The body of the documentation, interpreted according to `mime_type`.
+     *           The content may not exceed 8,192 Unicode characters and may not exceed
+     *           more than 10,240 bytes when encoded in UTF-8 format, whichever is
+     *           smaller. This text can be [templatized by using
+     *           variables](https://cloud.google.com/monitoring/alerts/doc-variables#doc-vars).
+     *     @type string $mime_type
+     *           The format of the `content` field. Presently, only the value
+     *           `"text/markdown"` is supported. See
+     *           [Markdown](https://en.wikipedia.org/wiki/Markdown) for more information.
+     *     @type string $subject
+     *           Optional. The subject line of the notification. The subject line may not
+     *           exceed 10,240 bytes. In notifications generated by this policy, the
+     *           contents of the subject line after variable expansion will be truncated
+     *           to 255 bytes or shorter at the latest UTF-8 character boundary. The
+     *           255-byte limit is recommended by [this
+     *           thread](https://stackoverflow.com/questions/1592291/what-is-the-email-subject-length-limit).
+     *           It is both the limit imposed by some third-party ticketing products and
+     *           it is common to define textual fields in databases as VARCHAR(255).
+     *           The contents of the subject line can be [templatized by using
+     *           variables](https://cloud.google.com/monitoring/alerts/doc-variables#doc-vars).
+     *           If this field is missing or empty, a default subject line will be
+     *           generated.
+     *     @type array<\Google\Cloud\Monitoring\V3\AlertPolicy\Documentation\Link>|\Google\Protobuf\Internal\RepeatedField $links
+     *           Optional. Links to content such as playbooks, repositories, and other
+     *           resources. This field can contain up to 3 entries.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Alert::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The body of the documentation, interpreted according to `mime_type`.
+     * The content may not exceed 8,192 Unicode characters and may not exceed
+     * more than 10,240 bytes when encoded in UTF-8 format, whichever is
+     * smaller. This text can be [templatized by using
+     * variables](https://cloud.google.com/monitoring/alerts/doc-variables#doc-vars).
+     *
+     * Generated from protobuf field <code>string content = 1;</code>
+     * @return string
+     */
+    public function getContent()
+    {
+        return $this->content;
+    }
+
+    /**
+     * The body of the documentation, interpreted according to `mime_type`.
+     * The content may not exceed 8,192 Unicode characters and may not exceed
+     * more than 10,240 bytes when encoded in UTF-8 format, whichever is
+     * smaller. This text can be [templatized by using
+     * variables](https://cloud.google.com/monitoring/alerts/doc-variables#doc-vars).
+     *
+     * Generated from protobuf field <code>string content = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setContent($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->content = $var;
+
+        return $this;
+    }
+
+    /**
+     * The format of the `content` field. Presently, only the value
+     * `"text/markdown"` is supported. See
+     * [Markdown](https://en.wikipedia.org/wiki/Markdown) for more information.
+     *
+     * Generated from protobuf field <code>string mime_type = 2;</code>
+     * @return string
+     */
+    public function getMimeType()
+    {
+        return $this->mime_type;
+    }
+
+    /**
+     * The format of the `content` field. Presently, only the value
+     * `"text/markdown"` is supported. See
+     * [Markdown](https://en.wikipedia.org/wiki/Markdown) for more information.
+     *
+     * Generated from protobuf field <code>string mime_type = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setMimeType($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->mime_type = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. The subject line of the notification. The subject line may not
+     * exceed 10,240 bytes. In notifications generated by this policy, the
+     * contents of the subject line after variable expansion will be truncated
+     * to 255 bytes or shorter at the latest UTF-8 character boundary. The
+     * 255-byte limit is recommended by [this
+     * thread](https://stackoverflow.com/questions/1592291/what-is-the-email-subject-length-limit).
+     * It is both the limit imposed by some third-party ticketing products and
+     * it is common to define textual fields in databases as VARCHAR(255).
+     * The contents of the subject line can be [templatized by using
+     * variables](https://cloud.google.com/monitoring/alerts/doc-variables#doc-vars).
+     * If this field is missing or empty, a default subject line will be
+     * generated.
+     *
+     * Generated from protobuf field <code>string subject = 3 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return string
+     */
+    public function getSubject()
+    {
+        return $this->subject;
+    }
+
+    /**
+     * Optional. The subject line of the notification. The subject line may not
+     * exceed 10,240 bytes. In notifications generated by this policy, the
+     * contents of the subject line after variable expansion will be truncated
+     * to 255 bytes or shorter at the latest UTF-8 character boundary. The
+     * 255-byte limit is recommended by [this
+     * thread](https://stackoverflow.com/questions/1592291/what-is-the-email-subject-length-limit).
+     * It is both the limit imposed by some third-party ticketing products and
+     * it is common to define textual fields in databases as VARCHAR(255).
+     * The contents of the subject line can be [templatized by using
+     * variables](https://cloud.google.com/monitoring/alerts/doc-variables#doc-vars).
+     * If this field is missing or empty, a default subject line will be
+     * generated.
+     *
+     * Generated from protobuf field <code>string subject = 3 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setSubject($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->subject = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. Links to content such as playbooks, repositories, and other
+     * resources. This field can contain up to 3 entries.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.AlertPolicy.Documentation.Link links = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getLinks()
+    {
+        return $this->links;
+    }
+
+    /**
+     * Optional. Links to content such as playbooks, repositories, and other
+     * resources. This field can contain up to 3 entries.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.AlertPolicy.Documentation.Link links = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param array<\Google\Cloud\Monitoring\V3\AlertPolicy\Documentation\Link>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setLinks($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\AlertPolicy\Documentation\Link::class);
+        $this->links = $arr;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(Documentation::class, \Google\Cloud\Monitoring\V3\AlertPolicy_Documentation::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Documentation/Link.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Documentation/Link.php
new file mode 100644
index 000000000000..278b55932be5
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Documentation/Link.php
@@ -0,0 +1,124 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert.proto
+
+namespace Google\Cloud\Monitoring\V3\AlertPolicy\Documentation;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Links to content such as playbooks, repositories, and other resources.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.AlertPolicy.Documentation.Link</code>
+ */
+class Link extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * A short display name for the link. The display name must not be empty
+     * or exceed 63 characters. Example: "playbook".
+     *
+     * Generated from protobuf field <code>string display_name = 1;</code>
+     */
+    protected $display_name = '';
+    /**
+     * The url of a webpage.
+     * A url can be templatized by using variables
+     * in the path or the query parameters. The total length of a URL should
+     * not exceed 2083 characters before and after variable expansion.
+     * Example: "https://my_domain.com/playbook?name=${resource.name}"
+     *
+     * Generated from protobuf field <code>string url = 2;</code>
+     */
+    protected $url = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $display_name
+     *           A short display name for the link. The display name must not be empty
+     *           or exceed 63 characters. Example: "playbook".
+     *     @type string $url
+     *           The url of a webpage.
+     *           A url can be templatized by using variables
+     *           in the path or the query parameters. The total length of a URL should
+     *           not exceed 2083 characters before and after variable expansion.
+     *           Example: "https://my_domain.com/playbook?name=${resource.name}"
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Alert::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * A short display name for the link. The display name must not be empty
+     * or exceed 63 characters. Example: "playbook".
+     *
+     * Generated from protobuf field <code>string display_name = 1;</code>
+     * @return string
+     */
+    public function getDisplayName()
+    {
+        return $this->display_name;
+    }
+
+    /**
+     * A short display name for the link. The display name must not be empty
+     * or exceed 63 characters. Example: "playbook".
+     *
+     * Generated from protobuf field <code>string display_name = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setDisplayName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->display_name = $var;
+
+        return $this;
+    }
+
+    /**
+     * The url of a webpage.
+     * A url can be templatized by using variables
+     * in the path or the query parameters. The total length of a URL should
+     * not exceed 2083 characters before and after variable expansion.
+     * Example: "https://my_domain.com/playbook?name=${resource.name}"
+     *
+     * Generated from protobuf field <code>string url = 2;</code>
+     * @return string
+     */
+    public function getUrl()
+    {
+        return $this->url;
+    }
+
+    /**
+     * The url of a webpage.
+     * A url can be templatized by using variables
+     * in the path or the query parameters. The total length of a URL should
+     * not exceed 2083 characters before and after variable expansion.
+     * Example: "https://my_domain.com/playbook?name=${resource.name}"
+     *
+     * Generated from protobuf field <code>string url = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setUrl($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->url = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(Link::class, \Google\Cloud\Monitoring\V3\AlertPolicy_Documentation_Link::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Severity.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Severity.php
new file mode 100644
index 000000000000..85808c4b4a58
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/AlertPolicy/Severity.php
@@ -0,0 +1,75 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert.proto
+
+namespace Google\Cloud\Monitoring\V3\AlertPolicy;
+
+use UnexpectedValueException;
+
+/**
+ * An enumeration of possible severity level for an alerting policy.
+ *
+ * Protobuf type <code>google.monitoring.v3.AlertPolicy.Severity</code>
+ */
+class Severity
+{
+    /**
+     * No severity is specified. This is the default value.
+     *
+     * Generated from protobuf enum <code>SEVERITY_UNSPECIFIED = 0;</code>
+     */
+    const SEVERITY_UNSPECIFIED = 0;
+    /**
+     * This is the highest severity level. Use this if the problem could
+     * cause significant damage or downtime.
+     *
+     * Generated from protobuf enum <code>CRITICAL = 1;</code>
+     */
+    const CRITICAL = 1;
+    /**
+     * This is the medium severity level. Use this if the problem could
+     * cause minor damage or downtime.
+     *
+     * Generated from protobuf enum <code>ERROR = 2;</code>
+     */
+    const ERROR = 2;
+    /**
+     * This is the lowest severity level. Use this if the problem is not causing
+     * any damage or downtime, but could potentially lead to a problem in the
+     * future.
+     *
+     * Generated from protobuf enum <code>WARNING = 3;</code>
+     */
+    const WARNING = 3;
+
+    private static $valueToName = [
+        self::SEVERITY_UNSPECIFIED => 'SEVERITY_UNSPECIFIED',
+        self::CRITICAL => 'CRITICAL',
+        self::ERROR => 'ERROR',
+        self::WARNING => 'WARNING',
+    ];
+
+    public static function name($value)
+    {
+        if (!isset(self::$valueToName[$value])) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no name defined for value %s', __CLASS__, $value));
+        }
+        return self::$valueToName[$value];
+    }
+
+
+    public static function value($name)
+    {
+        $const = __CLASS__ . '::' . strtoupper($name);
+        if (!defined($const)) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no value defined for name %s', __CLASS__, $name));
+        }
+        return constant($const);
+    }
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(Severity::class, \Google\Cloud\Monitoring\V3\AlertPolicy_Severity::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/BasicSli.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/BasicSli.php
new file mode 100644
index 000000000000..5becfda99f47
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/BasicSli.php
@@ -0,0 +1,269 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * An SLI measuring performance on a well-known service type. Performance will
+ * be computed on the basis of pre-defined metrics. The type of the
+ * `service_resource` determines the metrics to use and the
+ * `service_resource.labels` and `metric_labels` are used to construct a
+ * monitoring filter to filter that metric down to just the data relevant to
+ * this service.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.BasicSli</code>
+ */
+class BasicSli extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * OPTIONAL: The set of RPCs to which this SLI is relevant. Telemetry from
+     * other methods will not be used to calculate performance for this SLI. If
+     * omitted, this SLI applies to all the Service's methods. For service types
+     * that don't support breaking down by method, setting this field will result
+     * in an error.
+     *
+     * Generated from protobuf field <code>repeated string method = 7;</code>
+     */
+    private $method;
+    /**
+     * OPTIONAL: The set of locations to which this SLI is relevant. Telemetry
+     * from other locations will not be used to calculate performance for this
+     * SLI. If omitted, this SLI applies to all locations in which the Service has
+     * activity. For service types that don't support breaking down by location,
+     * setting this field will result in an error.
+     *
+     * Generated from protobuf field <code>repeated string location = 8;</code>
+     */
+    private $location;
+    /**
+     * OPTIONAL: The set of API versions to which this SLI is relevant. Telemetry
+     * from other API versions will not be used to calculate performance for this
+     * SLI. If omitted, this SLI applies to all API versions. For service types
+     * that don't support breaking down by version, setting this field will result
+     * in an error.
+     *
+     * Generated from protobuf field <code>repeated string version = 9;</code>
+     */
+    private $version;
+    protected $sli_criteria;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type array<string>|\Google\Protobuf\Internal\RepeatedField $method
+     *           OPTIONAL: The set of RPCs to which this SLI is relevant. Telemetry from
+     *           other methods will not be used to calculate performance for this SLI. If
+     *           omitted, this SLI applies to all the Service's methods. For service types
+     *           that don't support breaking down by method, setting this field will result
+     *           in an error.
+     *     @type array<string>|\Google\Protobuf\Internal\RepeatedField $location
+     *           OPTIONAL: The set of locations to which this SLI is relevant. Telemetry
+     *           from other locations will not be used to calculate performance for this
+     *           SLI. If omitted, this SLI applies to all locations in which the Service has
+     *           activity. For service types that don't support breaking down by location,
+     *           setting this field will result in an error.
+     *     @type array<string>|\Google\Protobuf\Internal\RepeatedField $version
+     *           OPTIONAL: The set of API versions to which this SLI is relevant. Telemetry
+     *           from other API versions will not be used to calculate performance for this
+     *           SLI. If omitted, this SLI applies to all API versions. For service types
+     *           that don't support breaking down by version, setting this field will result
+     *           in an error.
+     *     @type \Google\Cloud\Monitoring\V3\BasicSli\AvailabilityCriteria $availability
+     *           Good service is defined to be the count of requests made to this service
+     *           that return successfully.
+     *     @type \Google\Cloud\Monitoring\V3\BasicSli\LatencyCriteria $latency
+     *           Good service is defined to be the count of requests made to this service
+     *           that are fast enough with respect to `latency.threshold`.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Service::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * OPTIONAL: The set of RPCs to which this SLI is relevant. Telemetry from
+     * other methods will not be used to calculate performance for this SLI. If
+     * omitted, this SLI applies to all the Service's methods. For service types
+     * that don't support breaking down by method, setting this field will result
+     * in an error.
+     *
+     * Generated from protobuf field <code>repeated string method = 7;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getMethod()
+    {
+        return $this->method;
+    }
+
+    /**
+     * OPTIONAL: The set of RPCs to which this SLI is relevant. Telemetry from
+     * other methods will not be used to calculate performance for this SLI. If
+     * omitted, this SLI applies to all the Service's methods. For service types
+     * that don't support breaking down by method, setting this field will result
+     * in an error.
+     *
+     * Generated from protobuf field <code>repeated string method = 7;</code>
+     * @param array<string>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setMethod($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::STRING);
+        $this->method = $arr;
+
+        return $this;
+    }
+
+    /**
+     * OPTIONAL: The set of locations to which this SLI is relevant. Telemetry
+     * from other locations will not be used to calculate performance for this
+     * SLI. If omitted, this SLI applies to all locations in which the Service has
+     * activity. For service types that don't support breaking down by location,
+     * setting this field will result in an error.
+     *
+     * Generated from protobuf field <code>repeated string location = 8;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getLocation()
+    {
+        return $this->location;
+    }
+
+    /**
+     * OPTIONAL: The set of locations to which this SLI is relevant. Telemetry
+     * from other locations will not be used to calculate performance for this
+     * SLI. If omitted, this SLI applies to all locations in which the Service has
+     * activity. For service types that don't support breaking down by location,
+     * setting this field will result in an error.
+     *
+     * Generated from protobuf field <code>repeated string location = 8;</code>
+     * @param array<string>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setLocation($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::STRING);
+        $this->location = $arr;
+
+        return $this;
+    }
+
+    /**
+     * OPTIONAL: The set of API versions to which this SLI is relevant. Telemetry
+     * from other API versions will not be used to calculate performance for this
+     * SLI. If omitted, this SLI applies to all API versions. For service types
+     * that don't support breaking down by version, setting this field will result
+     * in an error.
+     *
+     * Generated from protobuf field <code>repeated string version = 9;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getVersion()
+    {
+        return $this->version;
+    }
+
+    /**
+     * OPTIONAL: The set of API versions to which this SLI is relevant. Telemetry
+     * from other API versions will not be used to calculate performance for this
+     * SLI. If omitted, this SLI applies to all API versions. For service types
+     * that don't support breaking down by version, setting this field will result
+     * in an error.
+     *
+     * Generated from protobuf field <code>repeated string version = 9;</code>
+     * @param array<string>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setVersion($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::STRING);
+        $this->version = $arr;
+
+        return $this;
+    }
+
+    /**
+     * Good service is defined to be the count of requests made to this service
+     * that return successfully.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.BasicSli.AvailabilityCriteria availability = 2;</code>
+     * @return \Google\Cloud\Monitoring\V3\BasicSli\AvailabilityCriteria|null
+     */
+    public function getAvailability()
+    {
+        return $this->readOneof(2);
+    }
+
+    public function hasAvailability()
+    {
+        return $this->hasOneof(2);
+    }
+
+    /**
+     * Good service is defined to be the count of requests made to this service
+     * that return successfully.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.BasicSli.AvailabilityCriteria availability = 2;</code>
+     * @param \Google\Cloud\Monitoring\V3\BasicSli\AvailabilityCriteria $var
+     * @return $this
+     */
+    public function setAvailability($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\BasicSli\AvailabilityCriteria::class);
+        $this->writeOneof(2, $var);
+
+        return $this;
+    }
+
+    /**
+     * Good service is defined to be the count of requests made to this service
+     * that are fast enough with respect to `latency.threshold`.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.BasicSli.LatencyCriteria latency = 3;</code>
+     * @return \Google\Cloud\Monitoring\V3\BasicSli\LatencyCriteria|null
+     */
+    public function getLatency()
+    {
+        return $this->readOneof(3);
+    }
+
+    public function hasLatency()
+    {
+        return $this->hasOneof(3);
+    }
+
+    /**
+     * Good service is defined to be the count of requests made to this service
+     * that are fast enough with respect to `latency.threshold`.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.BasicSli.LatencyCriteria latency = 3;</code>
+     * @param \Google\Cloud\Monitoring\V3\BasicSli\LatencyCriteria $var
+     * @return $this
+     */
+    public function setLatency($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\BasicSli\LatencyCriteria::class);
+        $this->writeOneof(3, $var);
+
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getSliCriteria()
+    {
+        return $this->whichOneof("sli_criteria");
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/BasicSli/AvailabilityCriteria.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/BasicSli/AvailabilityCriteria.php
new file mode 100644
index 000000000000..39790b19ee01
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/BasicSli/AvailabilityCriteria.php
@@ -0,0 +1,36 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service.proto
+
+namespace Google\Cloud\Monitoring\V3\BasicSli;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Future parameters for the availability SLI.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.BasicSli.AvailabilityCriteria</code>
+ */
+class AvailabilityCriteria extends \Google\Protobuf\Internal\Message
+{
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Service::initOnce();
+        parent::__construct($data);
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(AvailabilityCriteria::class, \Google\Cloud\Monitoring\V3\BasicSli_AvailabilityCriteria::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/BasicSli/LatencyCriteria.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/BasicSli/LatencyCriteria.php
new file mode 100644
index 000000000000..331b6b6e46f4
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/BasicSli/LatencyCriteria.php
@@ -0,0 +1,84 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service.proto
+
+namespace Google\Cloud\Monitoring\V3\BasicSli;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Parameters for a latency threshold SLI.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.BasicSli.LatencyCriteria</code>
+ */
+class LatencyCriteria extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Good service is defined to be the count of requests made to this service
+     * that return in no more than `threshold`.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration threshold = 3;</code>
+     */
+    protected $threshold = null;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type \Google\Protobuf\Duration $threshold
+     *           Good service is defined to be the count of requests made to this service
+     *           that return in no more than `threshold`.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Service::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Good service is defined to be the count of requests made to this service
+     * that return in no more than `threshold`.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration threshold = 3;</code>
+     * @return \Google\Protobuf\Duration|null
+     */
+    public function getThreshold()
+    {
+        return $this->threshold;
+    }
+
+    public function hasThreshold()
+    {
+        return isset($this->threshold);
+    }
+
+    public function clearThreshold()
+    {
+        unset($this->threshold);
+    }
+
+    /**
+     * Good service is defined to be the count of requests made to this service
+     * that return in no more than `threshold`.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration threshold = 3;</code>
+     * @param \Google\Protobuf\Duration $var
+     * @return $this
+     */
+    public function setThreshold($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\Duration::class);
+        $this->threshold = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(LatencyCriteria::class, \Google\Cloud\Monitoring\V3\BasicSli_LatencyCriteria::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ComparisonType.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ComparisonType.php
new file mode 100644
index 000000000000..d86a3fbc2cde
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ComparisonType.php
@@ -0,0 +1,90 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/common.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use UnexpectedValueException;
+
+/**
+ * Specifies an ordering relationship on two arguments, called `left` and
+ * `right`.
+ *
+ * Protobuf type <code>google.monitoring.v3.ComparisonType</code>
+ */
+class ComparisonType
+{
+    /**
+     * No ordering relationship is specified.
+     *
+     * Generated from protobuf enum <code>COMPARISON_UNSPECIFIED = 0;</code>
+     */
+    const COMPARISON_UNSPECIFIED = 0;
+    /**
+     * True if the left argument is greater than the right argument.
+     *
+     * Generated from protobuf enum <code>COMPARISON_GT = 1;</code>
+     */
+    const COMPARISON_GT = 1;
+    /**
+     * True if the left argument is greater than or equal to the right argument.
+     *
+     * Generated from protobuf enum <code>COMPARISON_GE = 2;</code>
+     */
+    const COMPARISON_GE = 2;
+    /**
+     * True if the left argument is less than the right argument.
+     *
+     * Generated from protobuf enum <code>COMPARISON_LT = 3;</code>
+     */
+    const COMPARISON_LT = 3;
+    /**
+     * True if the left argument is less than or equal to the right argument.
+     *
+     * Generated from protobuf enum <code>COMPARISON_LE = 4;</code>
+     */
+    const COMPARISON_LE = 4;
+    /**
+     * True if the left argument is equal to the right argument.
+     *
+     * Generated from protobuf enum <code>COMPARISON_EQ = 5;</code>
+     */
+    const COMPARISON_EQ = 5;
+    /**
+     * True if the left argument is not equal to the right argument.
+     *
+     * Generated from protobuf enum <code>COMPARISON_NE = 6;</code>
+     */
+    const COMPARISON_NE = 6;
+
+    private static $valueToName = [
+        self::COMPARISON_UNSPECIFIED => 'COMPARISON_UNSPECIFIED',
+        self::COMPARISON_GT => 'COMPARISON_GT',
+        self::COMPARISON_GE => 'COMPARISON_GE',
+        self::COMPARISON_LT => 'COMPARISON_LT',
+        self::COMPARISON_LE => 'COMPARISON_LE',
+        self::COMPARISON_EQ => 'COMPARISON_EQ',
+        self::COMPARISON_NE => 'COMPARISON_NE',
+    ];
+
+    public static function name($value)
+    {
+        if (!isset(self::$valueToName[$value])) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no name defined for value %s', __CLASS__, $value));
+        }
+        return self::$valueToName[$value];
+    }
+
+
+    public static function value($name)
+    {
+        $const = __CLASS__ . '::' . strtoupper($name);
+        if (!defined($const)) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no value defined for name %s', __CLASS__, $name));
+        }
+        return constant($const);
+    }
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateAlertPolicyRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateAlertPolicyRequest.php
new file mode 100644
index 000000000000..6c9c18ef40f4
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateAlertPolicyRequest.php
@@ -0,0 +1,188 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The protocol for the `CreateAlertPolicy` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.CreateAlertPolicyRequest</code>
+ */
+class CreateAlertPolicyRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+     * to create the alerting policy. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     * Note that this field names the parent container in which the alerting
+     * policy will be written, not the name of the created policy. |name| must be
+     * a host project of a Metrics Scope, otherwise INVALID_ARGUMENT error will
+     * return. The alerting policy that is returned will have a name that contains
+     * a normalized representation of this name as a prefix but adds a suffix of
+     * the form `/alertPolicies/[ALERT_POLICY_ID]`, identifying the policy in the
+     * container.
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+    /**
+     * Required. The requested alerting policy. You should omit the `name` field
+     * in this policy. The name will be returned in the new policy, including a
+     * new `[ALERT_POLICY_ID]` value.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy alert_policy = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $alert_policy = null;
+
+    /**
+     * @param string                                  $name        Required. The
+     *                                                             [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+     *                                                             to create the alerting policy. The format is:
+     *
+     *                                                             projects/[PROJECT_ID_OR_NUMBER]
+     *
+     *                                                             Note that this field names the parent container in which the alerting
+     *                                                             policy will be written, not the name of the created policy. |name| must be
+     *                                                             a host project of a Metrics Scope, otherwise INVALID_ARGUMENT error will
+     *                                                             return. The alerting policy that is returned will have a name that contains
+     *                                                             a normalized representation of this name as a prefix but adds a suffix of
+     *                                                             the form `/alertPolicies/[ALERT_POLICY_ID]`, identifying the policy in the
+     *                                                             container.
+     * @param \Google\Cloud\Monitoring\V3\AlertPolicy $alertPolicy Required. The requested alerting policy. You should omit the `name` field
+     *                                                             in this policy. The name will be returned in the new policy, including a
+     *                                                             new `[ALERT_POLICY_ID]` value.
+     *
+     * @return \Google\Cloud\Monitoring\V3\CreateAlertPolicyRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name, \Google\Cloud\Monitoring\V3\AlertPolicy $alertPolicy): self
+    {
+        return (new self())
+            ->setName($name)
+            ->setAlertPolicy($alertPolicy);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The
+     *           [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+     *           to create the alerting policy. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]
+     *           Note that this field names the parent container in which the alerting
+     *           policy will be written, not the name of the created policy. |name| must be
+     *           a host project of a Metrics Scope, otherwise INVALID_ARGUMENT error will
+     *           return. The alerting policy that is returned will have a name that contains
+     *           a normalized representation of this name as a prefix but adds a suffix of
+     *           the form `/alertPolicies/[ALERT_POLICY_ID]`, identifying the policy in the
+     *           container.
+     *     @type \Google\Cloud\Monitoring\V3\AlertPolicy $alert_policy
+     *           Required. The requested alerting policy. You should omit the `name` field
+     *           in this policy. The name will be returned in the new policy, including a
+     *           new `[ALERT_POLICY_ID]` value.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\AlertService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+     * to create the alerting policy. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     * Note that this field names the parent container in which the alerting
+     * policy will be written, not the name of the created policy. |name| must be
+     * a host project of a Metrics Scope, otherwise INVALID_ARGUMENT error will
+     * return. The alerting policy that is returned will have a name that contains
+     * a normalized representation of this name as a prefix but adds a suffix of
+     * the form `/alertPolicies/[ALERT_POLICY_ID]`, identifying the policy in the
+     * container.
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+     * to create the alerting policy. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     * Note that this field names the parent container in which the alerting
+     * policy will be written, not the name of the created policy. |name| must be
+     * a host project of a Metrics Scope, otherwise INVALID_ARGUMENT error will
+     * return. The alerting policy that is returned will have a name that contains
+     * a normalized representation of this name as a prefix but adds a suffix of
+     * the form `/alertPolicies/[ALERT_POLICY_ID]`, identifying the policy in the
+     * container.
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * Required. The requested alerting policy. You should omit the `name` field
+     * in this policy. The name will be returned in the new policy, including a
+     * new `[ALERT_POLICY_ID]` value.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy alert_policy = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return \Google\Cloud\Monitoring\V3\AlertPolicy|null
+     */
+    public function getAlertPolicy()
+    {
+        return $this->alert_policy;
+    }
+
+    public function hasAlertPolicy()
+    {
+        return isset($this->alert_policy);
+    }
+
+    public function clearAlertPolicy()
+    {
+        unset($this->alert_policy);
+    }
+
+    /**
+     * Required. The requested alerting policy. You should omit the `name` field
+     * in this policy. The name will be returned in the new policy, including a
+     * new `[ALERT_POLICY_ID]` value.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy alert_policy = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param \Google\Cloud\Monitoring\V3\AlertPolicy $var
+     * @return $this
+     */
+    public function setAlertPolicy($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\AlertPolicy::class);
+        $this->alert_policy = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateGroupRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateGroupRequest.php
new file mode 100644
index 000000000000..bad7c64edac4
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateGroupRequest.php
@@ -0,0 +1,181 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/group_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `CreateGroup` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.CreateGroupRequest</code>
+ */
+class CreateGroupRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+     * to create the group. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string name = 4 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+    /**
+     * Required. A group definition. It is an error to define the `name` field
+     * because the system assigns the name.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Group group = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $group = null;
+    /**
+     * If true, validate this request but do not create the group.
+     *
+     * Generated from protobuf field <code>bool validate_only = 3;</code>
+     */
+    protected $validate_only = false;
+
+    /**
+     * @param string                            $name  Required. The
+     *                                                 [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+     *                                                 to create the group. The format is:
+     *
+     *                                                 projects/[PROJECT_ID_OR_NUMBER]
+     * @param \Google\Cloud\Monitoring\V3\Group $group Required. A group definition. It is an error to define the `name` field
+     *                                                 because the system assigns the name.
+     *
+     * @return \Google\Cloud\Monitoring\V3\CreateGroupRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name, \Google\Cloud\Monitoring\V3\Group $group): self
+    {
+        return (new self())
+            ->setName($name)
+            ->setGroup($group);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The
+     *           [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+     *           to create the group. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]
+     *     @type \Google\Cloud\Monitoring\V3\Group $group
+     *           Required. A group definition. It is an error to define the `name` field
+     *           because the system assigns the name.
+     *     @type bool $validate_only
+     *           If true, validate this request but do not create the group.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\GroupService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+     * to create the group. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string name = 4 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+     * to create the group. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string name = 4 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * Required. A group definition. It is an error to define the `name` field
+     * because the system assigns the name.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Group group = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return \Google\Cloud\Monitoring\V3\Group|null
+     */
+    public function getGroup()
+    {
+        return $this->group;
+    }
+
+    public function hasGroup()
+    {
+        return isset($this->group);
+    }
+
+    public function clearGroup()
+    {
+        unset($this->group);
+    }
+
+    /**
+     * Required. A group definition. It is an error to define the `name` field
+     * because the system assigns the name.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Group group = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param \Google\Cloud\Monitoring\V3\Group $var
+     * @return $this
+     */
+    public function setGroup($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\Group::class);
+        $this->group = $var;
+
+        return $this;
+    }
+
+    /**
+     * If true, validate this request but do not create the group.
+     *
+     * Generated from protobuf field <code>bool validate_only = 3;</code>
+     * @return bool
+     */
+    public function getValidateOnly()
+    {
+        return $this->validate_only;
+    }
+
+    /**
+     * If true, validate this request but do not create the group.
+     *
+     * Generated from protobuf field <code>bool validate_only = 3;</code>
+     * @param bool $var
+     * @return $this
+     */
+    public function setValidateOnly($var)
+    {
+        GPBUtil::checkBool($var);
+        $this->validate_only = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateMetricDescriptorRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateMetricDescriptorRequest.php
new file mode 100644
index 000000000000..45d737e63e85
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateMetricDescriptorRequest.php
@@ -0,0 +1,151 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `CreateMetricDescriptor` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.CreateMetricDescriptorRequest</code>
+ */
+class CreateMetricDescriptorRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     * to execute the request. The format is:
+     * 4
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+    /**
+     * Required. The new [custom
+     * metric](https://cloud.google.com/monitoring/custom-metrics) descriptor.
+     *
+     * Generated from protobuf field <code>.google.api.MetricDescriptor metric_descriptor = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $metric_descriptor = null;
+
+    /**
+     * @param string                       $name             Required. The
+     *                                                       [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     *                                                       to execute the request. The format is:
+     *                                                       4
+     *                                                       projects/[PROJECT_ID_OR_NUMBER]
+     * @param \Google\Api\MetricDescriptor $metricDescriptor Required. The new [custom
+     *                                                       metric](https://cloud.google.com/monitoring/custom-metrics) descriptor.
+     *
+     * @return \Google\Cloud\Monitoring\V3\CreateMetricDescriptorRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name, \Google\Api\MetricDescriptor $metricDescriptor): self
+    {
+        return (new self())
+            ->setName($name)
+            ->setMetricDescriptor($metricDescriptor);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The
+     *           [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     *           to execute the request. The format is:
+     *           4
+     *               projects/[PROJECT_ID_OR_NUMBER]
+     *     @type \Google\Api\MetricDescriptor $metric_descriptor
+     *           Required. The new [custom
+     *           metric](https://cloud.google.com/monitoring/custom-metrics) descriptor.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\MetricService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     * to execute the request. The format is:
+     * 4
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     * to execute the request. The format is:
+     * 4
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * Required. The new [custom
+     * metric](https://cloud.google.com/monitoring/custom-metrics) descriptor.
+     *
+     * Generated from protobuf field <code>.google.api.MetricDescriptor metric_descriptor = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return \Google\Api\MetricDescriptor|null
+     */
+    public function getMetricDescriptor()
+    {
+        return $this->metric_descriptor;
+    }
+
+    public function hasMetricDescriptor()
+    {
+        return isset($this->metric_descriptor);
+    }
+
+    public function clearMetricDescriptor()
+    {
+        unset($this->metric_descriptor);
+    }
+
+    /**
+     * Required. The new [custom
+     * metric](https://cloud.google.com/monitoring/custom-metrics) descriptor.
+     *
+     * Generated from protobuf field <code>.google.api.MetricDescriptor metric_descriptor = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param \Google\Api\MetricDescriptor $var
+     * @return $this
+     */
+    public function setMetricDescriptor($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Api\MetricDescriptor::class);
+        $this->metric_descriptor = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateNotificationChannelRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateNotificationChannelRequest.php
new file mode 100644
index 000000000000..2a528898bebc
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateNotificationChannelRequest.php
@@ -0,0 +1,163 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/notification_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `CreateNotificationChannel` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.CreateNotificationChannelRequest</code>
+ */
+class CreateNotificationChannelRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     * to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     * This names the container into which the channel will be
+     * written, this does not name the newly created channel. The resulting
+     * channel's name will have a normalized version of this field as a prefix,
+     * but will add `/notificationChannels/[CHANNEL_ID]` to identify the channel.
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+    /**
+     * Required. The definition of the `NotificationChannel` to create.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.NotificationChannel notification_channel = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $notification_channel = null;
+
+    /**
+     * @param string                                          $name                Required. The
+     *                                                                             [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     *                                                                             to execute the request. The format is:
+     *
+     *                                                                             projects/[PROJECT_ID_OR_NUMBER]
+     *
+     *                                                                             This names the container into which the channel will be
+     *                                                                             written, this does not name the newly created channel. The resulting
+     *                                                                             channel's name will have a normalized version of this field as a prefix,
+     *                                                                             but will add `/notificationChannels/[CHANNEL_ID]` to identify the channel.
+     * @param \Google\Cloud\Monitoring\V3\NotificationChannel $notificationChannel Required. The definition of the `NotificationChannel` to create.
+     *
+     * @return \Google\Cloud\Monitoring\V3\CreateNotificationChannelRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name, \Google\Cloud\Monitoring\V3\NotificationChannel $notificationChannel): self
+    {
+        return (new self())
+            ->setName($name)
+            ->setNotificationChannel($notificationChannel);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The
+     *           [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     *           to execute the request. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]
+     *           This names the container into which the channel will be
+     *           written, this does not name the newly created channel. The resulting
+     *           channel's name will have a normalized version of this field as a prefix,
+     *           but will add `/notificationChannels/[CHANNEL_ID]` to identify the channel.
+     *     @type \Google\Cloud\Monitoring\V3\NotificationChannel $notification_channel
+     *           Required. The definition of the `NotificationChannel` to create.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\NotificationService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     * to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     * This names the container into which the channel will be
+     * written, this does not name the newly created channel. The resulting
+     * channel's name will have a normalized version of this field as a prefix,
+     * but will add `/notificationChannels/[CHANNEL_ID]` to identify the channel.
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     * to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     * This names the container into which the channel will be
+     * written, this does not name the newly created channel. The resulting
+     * channel's name will have a normalized version of this field as a prefix,
+     * but will add `/notificationChannels/[CHANNEL_ID]` to identify the channel.
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * Required. The definition of the `NotificationChannel` to create.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.NotificationChannel notification_channel = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return \Google\Cloud\Monitoring\V3\NotificationChannel|null
+     */
+    public function getNotificationChannel()
+    {
+        return $this->notification_channel;
+    }
+
+    public function hasNotificationChannel()
+    {
+        return isset($this->notification_channel);
+    }
+
+    public function clearNotificationChannel()
+    {
+        unset($this->notification_channel);
+    }
+
+    /**
+     * Required. The definition of the `NotificationChannel` to create.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.NotificationChannel notification_channel = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param \Google\Cloud\Monitoring\V3\NotificationChannel $var
+     * @return $this
+     */
+    public function setNotificationChannel($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\NotificationChannel::class);
+        $this->notification_channel = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateServiceLevelObjectiveRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateServiceLevelObjectiveRequest.php
new file mode 100644
index 000000000000..151f66b7a84c
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateServiceLevelObjectiveRequest.php
@@ -0,0 +1,185 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `CreateServiceLevelObjective` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.CreateServiceLevelObjectiveRequest</code>
+ */
+class CreateServiceLevelObjectiveRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. Resource name of the parent `Service`. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     *
+     * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $parent = '';
+    /**
+     * Optional. The ServiceLevelObjective id to use for this
+     * ServiceLevelObjective. If omitted, an id will be generated instead. Must
+     * match the pattern `^[a-zA-Z0-9-_:.]+$`
+     *
+     * Generated from protobuf field <code>string service_level_objective_id = 3;</code>
+     */
+    protected $service_level_objective_id = '';
+    /**
+     * Required. The `ServiceLevelObjective` to create.
+     * The provided `name` will be respected if no `ServiceLevelObjective` exists
+     * with this name.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.ServiceLevelObjective service_level_objective = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $service_level_objective = null;
+
+    /**
+     * @param string                                            $parent                Required. Resource name of the parent `Service`. The format is:
+     *
+     *                                                                                 projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     *                                                                                 Please see {@see ServiceMonitoringServiceClient::serviceName()} for help formatting this field.
+     * @param \Google\Cloud\Monitoring\V3\ServiceLevelObjective $serviceLevelObjective Required. The `ServiceLevelObjective` to create.
+     *                                                                                 The provided `name` will be respected if no `ServiceLevelObjective` exists
+     *                                                                                 with this name.
+     *
+     * @return \Google\Cloud\Monitoring\V3\CreateServiceLevelObjectiveRequest
+     *
+     * @experimental
+     */
+    public static function build(string $parent, \Google\Cloud\Monitoring\V3\ServiceLevelObjective $serviceLevelObjective): self
+    {
+        return (new self())
+            ->setParent($parent)
+            ->setServiceLevelObjective($serviceLevelObjective);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $parent
+     *           Required. Resource name of the parent `Service`. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     *     @type string $service_level_objective_id
+     *           Optional. The ServiceLevelObjective id to use for this
+     *           ServiceLevelObjective. If omitted, an id will be generated instead. Must
+     *           match the pattern `^[a-zA-Z0-9-_:.]+$`
+     *     @type \Google\Cloud\Monitoring\V3\ServiceLevelObjective $service_level_objective
+     *           Required. The `ServiceLevelObjective` to create.
+     *           The provided `name` will be respected if no `ServiceLevelObjective` exists
+     *           with this name.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\ServiceService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. Resource name of the parent `Service`. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     *
+     * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getParent()
+    {
+        return $this->parent;
+    }
+
+    /**
+     * Required. Resource name of the parent `Service`. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     *
+     * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setParent($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->parent = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. The ServiceLevelObjective id to use for this
+     * ServiceLevelObjective. If omitted, an id will be generated instead. Must
+     * match the pattern `^[a-zA-Z0-9-_:.]+$`
+     *
+     * Generated from protobuf field <code>string service_level_objective_id = 3;</code>
+     * @return string
+     */
+    public function getServiceLevelObjectiveId()
+    {
+        return $this->service_level_objective_id;
+    }
+
+    /**
+     * Optional. The ServiceLevelObjective id to use for this
+     * ServiceLevelObjective. If omitted, an id will be generated instead. Must
+     * match the pattern `^[a-zA-Z0-9-_:.]+$`
+     *
+     * Generated from protobuf field <code>string service_level_objective_id = 3;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setServiceLevelObjectiveId($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->service_level_objective_id = $var;
+
+        return $this;
+    }
+
+    /**
+     * Required. The `ServiceLevelObjective` to create.
+     * The provided `name` will be respected if no `ServiceLevelObjective` exists
+     * with this name.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.ServiceLevelObjective service_level_objective = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return \Google\Cloud\Monitoring\V3\ServiceLevelObjective|null
+     */
+    public function getServiceLevelObjective()
+    {
+        return $this->service_level_objective;
+    }
+
+    public function hasServiceLevelObjective()
+    {
+        return isset($this->service_level_objective);
+    }
+
+    public function clearServiceLevelObjective()
+    {
+        unset($this->service_level_objective);
+    }
+
+    /**
+     * Required. The `ServiceLevelObjective` to create.
+     * The provided `name` will be respected if no `ServiceLevelObjective` exists
+     * with this name.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.ServiceLevelObjective service_level_objective = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param \Google\Cloud\Monitoring\V3\ServiceLevelObjective $var
+     * @return $this
+     */
+    public function setServiceLevelObjective($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\ServiceLevelObjective::class);
+        $this->service_level_objective = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateServiceRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateServiceRequest.php
new file mode 100644
index 000000000000..7d9425e30c52
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateServiceRequest.php
@@ -0,0 +1,180 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `CreateService` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.CreateServiceRequest</code>
+ */
+class CreateServiceRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. Resource
+     * [name](https://cloud.google.com/monitoring/api/v3#project_name) of the
+     * parent Metrics Scope. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $parent = '';
+    /**
+     * Optional. The Service id to use for this Service. If omitted, an id will be
+     * generated instead. Must match the pattern `[a-z0-9\-]+`
+     *
+     * Generated from protobuf field <code>string service_id = 3;</code>
+     */
+    protected $service_id = '';
+    /**
+     * Required. The `Service` to create.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service service = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $service = null;
+
+    /**
+     * @param string                              $parent  Required. Resource
+     *                                                     [name](https://cloud.google.com/monitoring/api/v3#project_name) of the
+     *                                                     parent Metrics Scope. The format is:
+     *
+     *                                                     projects/[PROJECT_ID_OR_NUMBER]
+     * @param \Google\Cloud\Monitoring\V3\Service $service Required. The `Service` to create.
+     *
+     * @return \Google\Cloud\Monitoring\V3\CreateServiceRequest
+     *
+     * @experimental
+     */
+    public static function build(string $parent, \Google\Cloud\Monitoring\V3\Service $service): self
+    {
+        return (new self())
+            ->setParent($parent)
+            ->setService($service);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $parent
+     *           Required. Resource
+     *           [name](https://cloud.google.com/monitoring/api/v3#project_name) of the
+     *           parent Metrics Scope. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]
+     *     @type string $service_id
+     *           Optional. The Service id to use for this Service. If omitted, an id will be
+     *           generated instead. Must match the pattern `[a-z0-9\-]+`
+     *     @type \Google\Cloud\Monitoring\V3\Service $service
+     *           Required. The `Service` to create.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\ServiceService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. Resource
+     * [name](https://cloud.google.com/monitoring/api/v3#project_name) of the
+     * parent Metrics Scope. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getParent()
+    {
+        return $this->parent;
+    }
+
+    /**
+     * Required. Resource
+     * [name](https://cloud.google.com/monitoring/api/v3#project_name) of the
+     * parent Metrics Scope. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setParent($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->parent = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. The Service id to use for this Service. If omitted, an id will be
+     * generated instead. Must match the pattern `[a-z0-9\-]+`
+     *
+     * Generated from protobuf field <code>string service_id = 3;</code>
+     * @return string
+     */
+    public function getServiceId()
+    {
+        return $this->service_id;
+    }
+
+    /**
+     * Optional. The Service id to use for this Service. If omitted, an id will be
+     * generated instead. Must match the pattern `[a-z0-9\-]+`
+     *
+     * Generated from protobuf field <code>string service_id = 3;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setServiceId($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->service_id = $var;
+
+        return $this;
+    }
+
+    /**
+     * Required. The `Service` to create.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service service = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return \Google\Cloud\Monitoring\V3\Service|null
+     */
+    public function getService()
+    {
+        return $this->service;
+    }
+
+    public function hasService()
+    {
+        return isset($this->service);
+    }
+
+    public function clearService()
+    {
+        unset($this->service);
+    }
+
+    /**
+     * Required. The `Service` to create.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service service = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param \Google\Cloud\Monitoring\V3\Service $var
+     * @return $this
+     */
+    public function setService($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\Service::class);
+        $this->service = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateSnoozeRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateSnoozeRequest.php
new file mode 100644
index 000000000000..c03b63fbc9d1
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateSnoozeRequest.php
@@ -0,0 +1,149 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/snooze_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The message definition for creating a `Snooze`. Users must provide the body
+ * of the `Snooze` to be created but must omit the `Snooze` field, `name`.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.CreateSnoozeRequest</code>
+ */
+class CreateSnoozeRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+     * a `Snooze` should be created. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $parent = '';
+    /**
+     * Required. The `Snooze` to create. Omit the `name` field, as it will be
+     * filled in by the API.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Snooze snooze = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $snooze = null;
+
+    /**
+     * @param string                             $parent Required. The
+     *                                                   [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+     *                                                   a `Snooze` should be created. The format is:
+     *
+     *                                                   projects/[PROJECT_ID_OR_NUMBER]
+     *                                                   Please see {@see SnoozeServiceClient::workspaceName()} for help formatting this field.
+     * @param \Google\Cloud\Monitoring\V3\Snooze $snooze Required. The `Snooze` to create. Omit the `name` field, as it will be
+     *                                                   filled in by the API.
+     *
+     * @return \Google\Cloud\Monitoring\V3\CreateSnoozeRequest
+     *
+     * @experimental
+     */
+    public static function build(string $parent, \Google\Cloud\Monitoring\V3\Snooze $snooze): self
+    {
+        return (new self())
+            ->setParent($parent)
+            ->setSnooze($snooze);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $parent
+     *           Required. The
+     *           [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+     *           a `Snooze` should be created. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]
+     *     @type \Google\Cloud\Monitoring\V3\Snooze $snooze
+     *           Required. The `Snooze` to create. Omit the `name` field, as it will be
+     *           filled in by the API.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\SnoozeService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+     * a `Snooze` should be created. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getParent()
+    {
+        return $this->parent;
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+     * a `Snooze` should be created. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setParent($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->parent = $var;
+
+        return $this;
+    }
+
+    /**
+     * Required. The `Snooze` to create. Omit the `name` field, as it will be
+     * filled in by the API.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Snooze snooze = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return \Google\Cloud\Monitoring\V3\Snooze|null
+     */
+    public function getSnooze()
+    {
+        return $this->snooze;
+    }
+
+    public function hasSnooze()
+    {
+        return isset($this->snooze);
+    }
+
+    public function clearSnooze()
+    {
+        unset($this->snooze);
+    }
+
+    /**
+     * Required. The `Snooze` to create. Omit the `name` field, as it will be
+     * filled in by the API.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Snooze snooze = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param \Google\Cloud\Monitoring\V3\Snooze $var
+     * @return $this
+     */
+    public function setSnooze($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\Snooze::class);
+        $this->snooze = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateTimeSeriesError.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateTimeSeriesError.php
new file mode 100644
index 000000000000..556d57d66086
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateTimeSeriesError.php
@@ -0,0 +1,135 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * DEPRECATED. Used to hold per-time-series error status.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.CreateTimeSeriesError</code>
+ */
+class CreateTimeSeriesError extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * DEPRECATED. Time series ID that resulted in the `status` error.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TimeSeries time_series = 1 [deprecated = true];</code>
+     * @deprecated
+     */
+    protected $time_series = null;
+    /**
+     * DEPRECATED. The status of the requested write operation for `time_series`.
+     *
+     * Generated from protobuf field <code>.google.rpc.Status status = 2 [deprecated = true];</code>
+     * @deprecated
+     */
+    protected $status = null;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type \Google\Cloud\Monitoring\V3\TimeSeries $time_series
+     *           DEPRECATED. Time series ID that resulted in the `status` error.
+     *     @type \Google\Rpc\Status $status
+     *           DEPRECATED. The status of the requested write operation for `time_series`.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\MetricService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * DEPRECATED. Time series ID that resulted in the `status` error.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TimeSeries time_series = 1 [deprecated = true];</code>
+     * @return \Google\Cloud\Monitoring\V3\TimeSeries|null
+     * @deprecated
+     */
+    public function getTimeSeries()
+    {
+        @trigger_error('time_series is deprecated.', E_USER_DEPRECATED);
+        return $this->time_series;
+    }
+
+    public function hasTimeSeries()
+    {
+        @trigger_error('time_series is deprecated.', E_USER_DEPRECATED);
+        return isset($this->time_series);
+    }
+
+    public function clearTimeSeries()
+    {
+        @trigger_error('time_series is deprecated.', E_USER_DEPRECATED);
+        unset($this->time_series);
+    }
+
+    /**
+     * DEPRECATED. Time series ID that resulted in the `status` error.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TimeSeries time_series = 1 [deprecated = true];</code>
+     * @param \Google\Cloud\Monitoring\V3\TimeSeries $var
+     * @return $this
+     * @deprecated
+     */
+    public function setTimeSeries($var)
+    {
+        @trigger_error('time_series is deprecated.', E_USER_DEPRECATED);
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\TimeSeries::class);
+        $this->time_series = $var;
+
+        return $this;
+    }
+
+    /**
+     * DEPRECATED. The status of the requested write operation for `time_series`.
+     *
+     * Generated from protobuf field <code>.google.rpc.Status status = 2 [deprecated = true];</code>
+     * @return \Google\Rpc\Status|null
+     * @deprecated
+     */
+    public function getStatus()
+    {
+        @trigger_error('status is deprecated.', E_USER_DEPRECATED);
+        return $this->status;
+    }
+
+    public function hasStatus()
+    {
+        @trigger_error('status is deprecated.', E_USER_DEPRECATED);
+        return isset($this->status);
+    }
+
+    public function clearStatus()
+    {
+        @trigger_error('status is deprecated.', E_USER_DEPRECATED);
+        unset($this->status);
+    }
+
+    /**
+     * DEPRECATED. The status of the requested write operation for `time_series`.
+     *
+     * Generated from protobuf field <code>.google.rpc.Status status = 2 [deprecated = true];</code>
+     * @param \Google\Rpc\Status $var
+     * @return $this
+     * @deprecated
+     */
+    public function setStatus($var)
+    {
+        @trigger_error('status is deprecated.', E_USER_DEPRECATED);
+        GPBUtil::checkMessage($var, \Google\Rpc\Status::class);
+        $this->status = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateTimeSeriesRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateTimeSeriesRequest.php
new file mode 100644
index 000000000000..66cb39cd93ac
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateTimeSeriesRequest.php
@@ -0,0 +1,159 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `CreateTimeSeries` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.CreateTimeSeriesRequest</code>
+ */
+class CreateTimeSeriesRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     * to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+    /**
+     * Required. The new data to be added to a list of time series.
+     * Adds at most one data point to each of several time series.  The new data
+     * point must be more recent than any other point in its time series.  Each
+     * `TimeSeries` value must fully specify a unique time series by supplying
+     * all label values for the metric and the monitored resource.
+     * The maximum number of `TimeSeries` objects per `Create` request is 200.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.TimeSeries time_series = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    private $time_series;
+
+    /**
+     * @param string                                   $name       Required. The
+     *                                                             [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     *                                                             to execute the request. The format is:
+     *
+     *                                                             projects/[PROJECT_ID_OR_NUMBER]
+     *                                                             Please see {@see MetricServiceClient::projectName()} for help formatting this field.
+     * @param \Google\Cloud\Monitoring\V3\TimeSeries[] $timeSeries Required. The new data to be added to a list of time series.
+     *                                                             Adds at most one data point to each of several time series.  The new data
+     *                                                             point must be more recent than any other point in its time series.  Each
+     *                                                             `TimeSeries` value must fully specify a unique time series by supplying
+     *                                                             all label values for the metric and the monitored resource.
+     *
+     *                                                             The maximum number of `TimeSeries` objects per `Create` request is 200.
+     *
+     * @return \Google\Cloud\Monitoring\V3\CreateTimeSeriesRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name, array $timeSeries): self
+    {
+        return (new self())
+            ->setName($name)
+            ->setTimeSeries($timeSeries);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The
+     *           [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     *           to execute the request. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]
+     *     @type array<\Google\Cloud\Monitoring\V3\TimeSeries>|\Google\Protobuf\Internal\RepeatedField $time_series
+     *           Required. The new data to be added to a list of time series.
+     *           Adds at most one data point to each of several time series.  The new data
+     *           point must be more recent than any other point in its time series.  Each
+     *           `TimeSeries` value must fully specify a unique time series by supplying
+     *           all label values for the metric and the monitored resource.
+     *           The maximum number of `TimeSeries` objects per `Create` request is 200.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\MetricService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     * to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     * to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * Required. The new data to be added to a list of time series.
+     * Adds at most one data point to each of several time series.  The new data
+     * point must be more recent than any other point in its time series.  Each
+     * `TimeSeries` value must fully specify a unique time series by supplying
+     * all label values for the metric and the monitored resource.
+     * The maximum number of `TimeSeries` objects per `Create` request is 200.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.TimeSeries time_series = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getTimeSeries()
+    {
+        return $this->time_series;
+    }
+
+    /**
+     * Required. The new data to be added to a list of time series.
+     * Adds at most one data point to each of several time series.  The new data
+     * point must be more recent than any other point in its time series.  Each
+     * `TimeSeries` value must fully specify a unique time series by supplying
+     * all label values for the metric and the monitored resource.
+     * The maximum number of `TimeSeries` objects per `Create` request is 200.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.TimeSeries time_series = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param array<\Google\Cloud\Monitoring\V3\TimeSeries>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setTimeSeries($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\TimeSeries::class);
+        $this->time_series = $arr;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateTimeSeriesSummary.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateTimeSeriesSummary.php
new file mode 100644
index 000000000000..8fb4fe1f025c
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateTimeSeriesSummary.php
@@ -0,0 +1,135 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Summary of the result of a failed request to write data to a time series.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.CreateTimeSeriesSummary</code>
+ */
+class CreateTimeSeriesSummary extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The number of points in the request.
+     *
+     * Generated from protobuf field <code>int32 total_point_count = 1;</code>
+     */
+    protected $total_point_count = 0;
+    /**
+     * The number of points that were successfully written.
+     *
+     * Generated from protobuf field <code>int32 success_point_count = 2;</code>
+     */
+    protected $success_point_count = 0;
+    /**
+     * The number of points that failed to be written. Order is not guaranteed.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.CreateTimeSeriesSummary.Error errors = 3;</code>
+     */
+    private $errors;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type int $total_point_count
+     *           The number of points in the request.
+     *     @type int $success_point_count
+     *           The number of points that were successfully written.
+     *     @type array<\Google\Cloud\Monitoring\V3\CreateTimeSeriesSummary\Error>|\Google\Protobuf\Internal\RepeatedField $errors
+     *           The number of points that failed to be written. Order is not guaranteed.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\MetricService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The number of points in the request.
+     *
+     * Generated from protobuf field <code>int32 total_point_count = 1;</code>
+     * @return int
+     */
+    public function getTotalPointCount()
+    {
+        return $this->total_point_count;
+    }
+
+    /**
+     * The number of points in the request.
+     *
+     * Generated from protobuf field <code>int32 total_point_count = 1;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setTotalPointCount($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->total_point_count = $var;
+
+        return $this;
+    }
+
+    /**
+     * The number of points that were successfully written.
+     *
+     * Generated from protobuf field <code>int32 success_point_count = 2;</code>
+     * @return int
+     */
+    public function getSuccessPointCount()
+    {
+        return $this->success_point_count;
+    }
+
+    /**
+     * The number of points that were successfully written.
+     *
+     * Generated from protobuf field <code>int32 success_point_count = 2;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setSuccessPointCount($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->success_point_count = $var;
+
+        return $this;
+    }
+
+    /**
+     * The number of points that failed to be written. Order is not guaranteed.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.CreateTimeSeriesSummary.Error errors = 3;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getErrors()
+    {
+        return $this->errors;
+    }
+
+    /**
+     * The number of points that failed to be written. Order is not guaranteed.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.CreateTimeSeriesSummary.Error errors = 3;</code>
+     * @param array<\Google\Cloud\Monitoring\V3\CreateTimeSeriesSummary\Error>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setErrors($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\CreateTimeSeriesSummary\Error::class);
+        $this->errors = $arr;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateTimeSeriesSummary/Error.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateTimeSeriesSummary/Error.php
new file mode 100644
index 000000000000..5bd917825b90
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateTimeSeriesSummary/Error.php
@@ -0,0 +1,114 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric_service.proto
+
+namespace Google\Cloud\Monitoring\V3\CreateTimeSeriesSummary;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Detailed information about an error category.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.CreateTimeSeriesSummary.Error</code>
+ */
+class Error extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The status of the requested write operation.
+     *
+     * Generated from protobuf field <code>.google.rpc.Status status = 1;</code>
+     */
+    protected $status = null;
+    /**
+     * The number of points that couldn't be written because of `status`.
+     *
+     * Generated from protobuf field <code>int32 point_count = 2;</code>
+     */
+    protected $point_count = 0;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type \Google\Rpc\Status $status
+     *           The status of the requested write operation.
+     *     @type int $point_count
+     *           The number of points that couldn't be written because of `status`.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\MetricService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The status of the requested write operation.
+     *
+     * Generated from protobuf field <code>.google.rpc.Status status = 1;</code>
+     * @return \Google\Rpc\Status|null
+     */
+    public function getStatus()
+    {
+        return $this->status;
+    }
+
+    public function hasStatus()
+    {
+        return isset($this->status);
+    }
+
+    public function clearStatus()
+    {
+        unset($this->status);
+    }
+
+    /**
+     * The status of the requested write operation.
+     *
+     * Generated from protobuf field <code>.google.rpc.Status status = 1;</code>
+     * @param \Google\Rpc\Status $var
+     * @return $this
+     */
+    public function setStatus($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Rpc\Status::class);
+        $this->status = $var;
+
+        return $this;
+    }
+
+    /**
+     * The number of points that couldn't be written because of `status`.
+     *
+     * Generated from protobuf field <code>int32 point_count = 2;</code>
+     * @return int
+     */
+    public function getPointCount()
+    {
+        return $this->point_count;
+    }
+
+    /**
+     * The number of points that couldn't be written because of `status`.
+     *
+     * Generated from protobuf field <code>int32 point_count = 2;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setPointCount($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->point_count = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(Error::class, \Google\Cloud\Monitoring\V3\CreateTimeSeriesSummary_Error::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateUptimeCheckConfigRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateUptimeCheckConfigRequest.php
new file mode 100644
index 000000000000..991e2028b3ae
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/CreateUptimeCheckConfigRequest.php
@@ -0,0 +1,142 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The protocol for the `CreateUptimeCheckConfig` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.CreateUptimeCheckConfigRequest</code>
+ */
+class CreateUptimeCheckConfigRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+     * to create the Uptime check. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $parent = '';
+    /**
+     * Required. The new Uptime check configuration.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig uptime_check_config = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $uptime_check_config = null;
+
+    /**
+     * @param string                                        $parent            Required. The
+     *                                                                         [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+     *                                                                         to create the Uptime check. The format is:
+     *
+     *                                                                         projects/[PROJECT_ID_OR_NUMBER]
+     * @param \Google\Cloud\Monitoring\V3\UptimeCheckConfig $uptimeCheckConfig Required. The new Uptime check configuration.
+     *
+     * @return \Google\Cloud\Monitoring\V3\CreateUptimeCheckConfigRequest
+     *
+     * @experimental
+     */
+    public static function build(string $parent, \Google\Cloud\Monitoring\V3\UptimeCheckConfig $uptimeCheckConfig): self
+    {
+        return (new self())
+            ->setParent($parent)
+            ->setUptimeCheckConfig($uptimeCheckConfig);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $parent
+     *           Required. The
+     *           [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+     *           to create the Uptime check. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]
+     *     @type \Google\Cloud\Monitoring\V3\UptimeCheckConfig $uptime_check_config
+     *           Required. The new Uptime check configuration.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\UptimeService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+     * to create the Uptime check. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getParent()
+    {
+        return $this->parent;
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+     * to create the Uptime check. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setParent($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->parent = $var;
+
+        return $this;
+    }
+
+    /**
+     * Required. The new Uptime check configuration.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig uptime_check_config = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return \Google\Cloud\Monitoring\V3\UptimeCheckConfig|null
+     */
+    public function getUptimeCheckConfig()
+    {
+        return $this->uptime_check_config;
+    }
+
+    public function hasUptimeCheckConfig()
+    {
+        return isset($this->uptime_check_config);
+    }
+
+    public function clearUptimeCheckConfig()
+    {
+        unset($this->uptime_check_config);
+    }
+
+    /**
+     * Required. The new Uptime check configuration.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig uptime_check_config = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param \Google\Cloud\Monitoring\V3\UptimeCheckConfig $var
+     * @return $this
+     */
+    public function setUptimeCheckConfig($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\UptimeCheckConfig::class);
+        $this->uptime_check_config = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DeleteAlertPolicyRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DeleteAlertPolicyRequest.php
new file mode 100644
index 000000000000..2333c3a46912
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DeleteAlertPolicyRequest.php
@@ -0,0 +1,93 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The protocol for the `DeleteAlertPolicy` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.DeleteAlertPolicyRequest</code>
+ */
+class DeleteAlertPolicyRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The alerting policy to delete. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/alertPolicies/[ALERT_POLICY_ID]
+     * For more information, see [AlertPolicy][google.monitoring.v3.AlertPolicy].
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+
+    /**
+     * @param string $name Required. The alerting policy to delete. The format is:
+     *
+     *                     projects/[PROJECT_ID_OR_NUMBER]/alertPolicies/[ALERT_POLICY_ID]
+     *
+     *                     For more information, see [AlertPolicy][google.monitoring.v3.AlertPolicy]. Please see
+     *                     {@see AlertPolicyServiceClient::alertPolicyName()} for help formatting this field.
+     *
+     * @return \Google\Cloud\Monitoring\V3\DeleteAlertPolicyRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name): self
+    {
+        return (new self())
+            ->setName($name);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The alerting policy to delete. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/alertPolicies/[ALERT_POLICY_ID]
+     *           For more information, see [AlertPolicy][google.monitoring.v3.AlertPolicy].
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\AlertService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The alerting policy to delete. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/alertPolicies/[ALERT_POLICY_ID]
+     * For more information, see [AlertPolicy][google.monitoring.v3.AlertPolicy].
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The alerting policy to delete. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/alertPolicies/[ALERT_POLICY_ID]
+     * For more information, see [AlertPolicy][google.monitoring.v3.AlertPolicy].
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DeleteGroupRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DeleteGroupRequest.php
new file mode 100644
index 000000000000..b63a0bdb79fe
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DeleteGroupRequest.php
@@ -0,0 +1,130 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/group_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `DeleteGroup` request. The default behavior is to be able to delete a
+ * single group without any descendants.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.DeleteGroupRequest</code>
+ */
+class DeleteGroupRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The group to delete. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+    /**
+     * If this field is true, then the request means to delete a group with all
+     * its descendants. Otherwise, the request means to delete a group only when
+     * it has no descendants. The default value is false.
+     *
+     * Generated from protobuf field <code>bool recursive = 4;</code>
+     */
+    protected $recursive = false;
+
+    /**
+     * @param string $name Required. The group to delete. The format is:
+     *
+     *                     projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     *                     Please see {@see GroupServiceClient::groupName()} for help formatting this field.
+     *
+     * @return \Google\Cloud\Monitoring\V3\DeleteGroupRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name): self
+    {
+        return (new self())
+            ->setName($name);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The group to delete. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     *     @type bool $recursive
+     *           If this field is true, then the request means to delete a group with all
+     *           its descendants. Otherwise, the request means to delete a group only when
+     *           it has no descendants. The default value is false.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\GroupService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The group to delete. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The group to delete. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * If this field is true, then the request means to delete a group with all
+     * its descendants. Otherwise, the request means to delete a group only when
+     * it has no descendants. The default value is false.
+     *
+     * Generated from protobuf field <code>bool recursive = 4;</code>
+     * @return bool
+     */
+    public function getRecursive()
+    {
+        return $this->recursive;
+    }
+
+    /**
+     * If this field is true, then the request means to delete a group with all
+     * its descendants. Otherwise, the request means to delete a group only when
+     * it has no descendants. The default value is false.
+     *
+     * Generated from protobuf field <code>bool recursive = 4;</code>
+     * @param bool $var
+     * @return $this
+     */
+    public function setRecursive($var)
+    {
+        GPBUtil::checkBool($var);
+        $this->recursive = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DeleteMetricDescriptorRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DeleteMetricDescriptorRequest.php
new file mode 100644
index 000000000000..3d57dd66af31
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DeleteMetricDescriptorRequest.php
@@ -0,0 +1,103 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `DeleteMetricDescriptor` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.DeleteMetricDescriptorRequest</code>
+ */
+class DeleteMetricDescriptorRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The metric descriptor on which to execute the request. The format
+     * is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/metricDescriptors/[METRIC_ID]
+     * An example of `[METRIC_ID]` is:
+     * `"custom.googleapis.com/my_test_metric"`.
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+
+    /**
+     * @param string $name Required. The metric descriptor on which to execute the request. The format
+     *                     is:
+     *
+     *                     projects/[PROJECT_ID_OR_NUMBER]/metricDescriptors/[METRIC_ID]
+     *
+     *                     An example of `[METRIC_ID]` is:
+     *                     `"custom.googleapis.com/my_test_metric"`. Please see
+     *                     {@see MetricServiceClient::metricDescriptorName()} for help formatting this field.
+     *
+     * @return \Google\Cloud\Monitoring\V3\DeleteMetricDescriptorRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name): self
+    {
+        return (new self())
+            ->setName($name);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The metric descriptor on which to execute the request. The format
+     *           is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/metricDescriptors/[METRIC_ID]
+     *           An example of `[METRIC_ID]` is:
+     *           `"custom.googleapis.com/my_test_metric"`.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\MetricService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The metric descriptor on which to execute the request. The format
+     * is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/metricDescriptors/[METRIC_ID]
+     * An example of `[METRIC_ID]` is:
+     * `"custom.googleapis.com/my_test_metric"`.
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The metric descriptor on which to execute the request. The format
+     * is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/metricDescriptors/[METRIC_ID]
+     * An example of `[METRIC_ID]` is:
+     * `"custom.googleapis.com/my_test_metric"`.
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DeleteNotificationChannelRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DeleteNotificationChannelRequest.php
new file mode 100644
index 000000000000..d547bd360b46
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DeleteNotificationChannelRequest.php
@@ -0,0 +1,138 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/notification_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `DeleteNotificationChannel` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.DeleteNotificationChannelRequest</code>
+ */
+class DeleteNotificationChannelRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The channel for which to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/notificationChannels/[CHANNEL_ID]
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+    /**
+     * If true, the notification channel will be deleted regardless of its
+     * use in alert policies (the policies will be updated to remove the
+     * channel). If false, this operation will fail if the notification channel
+     * is referenced by existing alerting policies.
+     *
+     * Generated from protobuf field <code>bool force = 5;</code>
+     */
+    protected $force = false;
+
+    /**
+     * @param string $name  Required. The channel for which to execute the request. The format is:
+     *
+     *                      projects/[PROJECT_ID_OR_NUMBER]/notificationChannels/[CHANNEL_ID]
+     *                      Please see {@see NotificationChannelServiceClient::notificationChannelName()} for help formatting this field.
+     * @param bool   $force If true, the notification channel will be deleted regardless of its
+     *                      use in alert policies (the policies will be updated to remove the
+     *                      channel). If false, this operation will fail if the notification channel
+     *                      is referenced by existing alerting policies.
+     *
+     * @return \Google\Cloud\Monitoring\V3\DeleteNotificationChannelRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name, bool $force): self
+    {
+        return (new self())
+            ->setName($name)
+            ->setForce($force);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The channel for which to execute the request. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/notificationChannels/[CHANNEL_ID]
+     *     @type bool $force
+     *           If true, the notification channel will be deleted regardless of its
+     *           use in alert policies (the policies will be updated to remove the
+     *           channel). If false, this operation will fail if the notification channel
+     *           is referenced by existing alerting policies.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\NotificationService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The channel for which to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/notificationChannels/[CHANNEL_ID]
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The channel for which to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/notificationChannels/[CHANNEL_ID]
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * If true, the notification channel will be deleted regardless of its
+     * use in alert policies (the policies will be updated to remove the
+     * channel). If false, this operation will fail if the notification channel
+     * is referenced by existing alerting policies.
+     *
+     * Generated from protobuf field <code>bool force = 5;</code>
+     * @return bool
+     */
+    public function getForce()
+    {
+        return $this->force;
+    }
+
+    /**
+     * If true, the notification channel will be deleted regardless of its
+     * use in alert policies (the policies will be updated to remove the
+     * channel). If false, this operation will fail if the notification channel
+     * is referenced by existing alerting policies.
+     *
+     * Generated from protobuf field <code>bool force = 5;</code>
+     * @param bool $var
+     * @return $this
+     */
+    public function setForce($var)
+    {
+        GPBUtil::checkBool($var);
+        $this->force = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DeleteServiceLevelObjectiveRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DeleteServiceLevelObjectiveRequest.php
new file mode 100644
index 000000000000..8771b8fb4ab7
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DeleteServiceLevelObjectiveRequest.php
@@ -0,0 +1,92 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `DeleteServiceLevelObjective` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.DeleteServiceLevelObjectiveRequest</code>
+ */
+class DeleteServiceLevelObjectiveRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. Resource name of the `ServiceLevelObjective` to delete. The
+     * format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]/serviceLevelObjectives/[SLO_NAME]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+
+    /**
+     * @param string $name Required. Resource name of the `ServiceLevelObjective` to delete. The
+     *                     format is:
+     *
+     *                     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]/serviceLevelObjectives/[SLO_NAME]
+     *                     Please see {@see ServiceMonitoringServiceClient::serviceLevelObjectiveName()} for help formatting this field.
+     *
+     * @return \Google\Cloud\Monitoring\V3\DeleteServiceLevelObjectiveRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name): self
+    {
+        return (new self())
+            ->setName($name);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. Resource name of the `ServiceLevelObjective` to delete. The
+     *           format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]/serviceLevelObjectives/[SLO_NAME]
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\ServiceService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. Resource name of the `ServiceLevelObjective` to delete. The
+     * format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]/serviceLevelObjectives/[SLO_NAME]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. Resource name of the `ServiceLevelObjective` to delete. The
+     * format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]/serviceLevelObjectives/[SLO_NAME]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DeleteServiceRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DeleteServiceRequest.php
new file mode 100644
index 000000000000..378fecd0724b
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DeleteServiceRequest.php
@@ -0,0 +1,87 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `DeleteService` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.DeleteServiceRequest</code>
+ */
+class DeleteServiceRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. Resource name of the `Service` to delete. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+
+    /**
+     * @param string $name Required. Resource name of the `Service` to delete. The format is:
+     *
+     *                     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     *                     Please see {@see ServiceMonitoringServiceClient::serviceName()} for help formatting this field.
+     *
+     * @return \Google\Cloud\Monitoring\V3\DeleteServiceRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name): self
+    {
+        return (new self())
+            ->setName($name);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. Resource name of the `Service` to delete. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\ServiceService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. Resource name of the `Service` to delete. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. Resource name of the `Service` to delete. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DeleteUptimeCheckConfigRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DeleteUptimeCheckConfigRequest.php
new file mode 100644
index 000000000000..dfda97aa0167
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DeleteUptimeCheckConfigRequest.php
@@ -0,0 +1,87 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The protocol for the `DeleteUptimeCheckConfig` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.DeleteUptimeCheckConfigRequest</code>
+ */
+class DeleteUptimeCheckConfigRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The Uptime check configuration to delete. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/uptimeCheckConfigs/[UPTIME_CHECK_ID]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+
+    /**
+     * @param string $name Required. The Uptime check configuration to delete. The format is:
+     *
+     *                     projects/[PROJECT_ID_OR_NUMBER]/uptimeCheckConfigs/[UPTIME_CHECK_ID]
+     *                     Please see {@see UptimeCheckServiceClient::uptimeCheckConfigName()} for help formatting this field.
+     *
+     * @return \Google\Cloud\Monitoring\V3\DeleteUptimeCheckConfigRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name): self
+    {
+        return (new self())
+            ->setName($name);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The Uptime check configuration to delete. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/uptimeCheckConfigs/[UPTIME_CHECK_ID]
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\UptimeService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The Uptime check configuration to delete. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/uptimeCheckConfigs/[UPTIME_CHECK_ID]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The Uptime check configuration to delete. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/uptimeCheckConfigs/[UPTIME_CHECK_ID]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DistributionCut.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DistributionCut.php
new file mode 100644
index 000000000000..cffd93e1651b
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DistributionCut.php
@@ -0,0 +1,127 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A `DistributionCut` defines a `TimeSeries` and thresholds used for measuring
+ * good service and total service. The `TimeSeries` must have `ValueType =
+ * DISTRIBUTION` and `MetricKind = DELTA` or `MetricKind = CUMULATIVE`. The
+ * computed `good_service` will be the estimated count of values in the
+ * `Distribution` that fall within the specified `min` and `max`.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.DistributionCut</code>
+ */
+class DistributionCut extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * A [monitoring filter](https://cloud.google.com/monitoring/api/v3/filters)
+     * specifying a `TimeSeries` aggregating values. Must have `ValueType =
+     * DISTRIBUTION` and `MetricKind = DELTA` or `MetricKind = CUMULATIVE`.
+     *
+     * Generated from protobuf field <code>string distribution_filter = 4;</code>
+     */
+    protected $distribution_filter = '';
+    /**
+     * Range of values considered "good." For a one-sided range, set one bound to
+     * an infinite value.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Range range = 5;</code>
+     */
+    protected $range = null;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $distribution_filter
+     *           A [monitoring filter](https://cloud.google.com/monitoring/api/v3/filters)
+     *           specifying a `TimeSeries` aggregating values. Must have `ValueType =
+     *           DISTRIBUTION` and `MetricKind = DELTA` or `MetricKind = CUMULATIVE`.
+     *     @type \Google\Cloud\Monitoring\V3\Range $range
+     *           Range of values considered "good." For a one-sided range, set one bound to
+     *           an infinite value.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Service::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * A [monitoring filter](https://cloud.google.com/monitoring/api/v3/filters)
+     * specifying a `TimeSeries` aggregating values. Must have `ValueType =
+     * DISTRIBUTION` and `MetricKind = DELTA` or `MetricKind = CUMULATIVE`.
+     *
+     * Generated from protobuf field <code>string distribution_filter = 4;</code>
+     * @return string
+     */
+    public function getDistributionFilter()
+    {
+        return $this->distribution_filter;
+    }
+
+    /**
+     * A [monitoring filter](https://cloud.google.com/monitoring/api/v3/filters)
+     * specifying a `TimeSeries` aggregating values. Must have `ValueType =
+     * DISTRIBUTION` and `MetricKind = DELTA` or `MetricKind = CUMULATIVE`.
+     *
+     * Generated from protobuf field <code>string distribution_filter = 4;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setDistributionFilter($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->distribution_filter = $var;
+
+        return $this;
+    }
+
+    /**
+     * Range of values considered "good." For a one-sided range, set one bound to
+     * an infinite value.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Range range = 5;</code>
+     * @return \Google\Cloud\Monitoring\V3\Range|null
+     */
+    public function getRange()
+    {
+        return $this->range;
+    }
+
+    public function hasRange()
+    {
+        return isset($this->range);
+    }
+
+    public function clearRange()
+    {
+        unset($this->range);
+    }
+
+    /**
+     * Range of values considered "good." For a one-sided range, set one bound to
+     * an infinite value.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Range range = 5;</code>
+     * @param \Google\Cloud\Monitoring\V3\Range $var
+     * @return $this
+     */
+    public function setRange($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\Range::class);
+        $this->range = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DroppedLabels.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DroppedLabels.php
new file mode 100644
index 000000000000..4fb73d3bdd71
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/DroppedLabels.php
@@ -0,0 +1,80 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/dropped_labels.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A set of (label, value) pairs that were removed from a Distribution
+ * time series during aggregation and then added as an attachment to a
+ * Distribution.Exemplar.
+ * The full label set for the exemplars is constructed by using the dropped
+ * pairs in combination with the label values that remain on the aggregated
+ * Distribution time series. The constructed full label set can be used to
+ * identify the specific entity, such as the instance or job, which might be
+ * contributing to a long-tail. However, with dropped labels, the storage
+ * requirements are reduced because only the aggregated distribution values for
+ * a large group of time series are stored.
+ * Note that there are no guarantees on ordering of the labels from
+ * exemplar-to-exemplar and from distribution-to-distribution in the same
+ * stream, and there may be duplicates.  It is up to clients to resolve any
+ * ambiguities.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.DroppedLabels</code>
+ */
+class DroppedLabels extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Map from label to its value, for all labels dropped in any aggregation.
+     *
+     * Generated from protobuf field <code>map<string, string> label = 1;</code>
+     */
+    private $label;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type array|\Google\Protobuf\Internal\MapField $label
+     *           Map from label to its value, for all labels dropped in any aggregation.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\DroppedLabels::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Map from label to its value, for all labels dropped in any aggregation.
+     *
+     * Generated from protobuf field <code>map<string, string> label = 1;</code>
+     * @return \Google\Protobuf\Internal\MapField
+     */
+    public function getLabel()
+    {
+        return $this->label;
+    }
+
+    /**
+     * Map from label to its value, for all labels dropped in any aggregation.
+     *
+     * Generated from protobuf field <code>map<string, string> label = 1;</code>
+     * @param array|\Google\Protobuf\Internal\MapField $var
+     * @return $this
+     */
+    public function setLabel($var)
+    {
+        $arr = GPBUtil::checkMapField($var, \Google\Protobuf\Internal\GPBType::STRING, \Google\Protobuf\Internal\GPBType::STRING);
+        $this->label = $arr;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetAlertPolicyRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetAlertPolicyRequest.php
new file mode 100644
index 000000000000..573ae71a8ad5
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetAlertPolicyRequest.php
@@ -0,0 +1,87 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The protocol for the `GetAlertPolicy` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.GetAlertPolicyRequest</code>
+ */
+class GetAlertPolicyRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The alerting policy to retrieve. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/alertPolicies/[ALERT_POLICY_ID]
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+
+    /**
+     * @param string $name Required. The alerting policy to retrieve. The format is:
+     *
+     *                     projects/[PROJECT_ID_OR_NUMBER]/alertPolicies/[ALERT_POLICY_ID]
+     *                     Please see {@see AlertPolicyServiceClient::alertPolicyName()} for help formatting this field.
+     *
+     * @return \Google\Cloud\Monitoring\V3\GetAlertPolicyRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name): self
+    {
+        return (new self())
+            ->setName($name);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The alerting policy to retrieve. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/alertPolicies/[ALERT_POLICY_ID]
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\AlertService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The alerting policy to retrieve. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/alertPolicies/[ALERT_POLICY_ID]
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The alerting policy to retrieve. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/alertPolicies/[ALERT_POLICY_ID]
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetGroupRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetGroupRequest.php
new file mode 100644
index 000000000000..da9c56f0a13a
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetGroupRequest.php
@@ -0,0 +1,87 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/group_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `GetGroup` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.GetGroupRequest</code>
+ */
+class GetGroupRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The group to retrieve. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+
+    /**
+     * @param string $name Required. The group to retrieve. The format is:
+     *
+     *                     projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     *                     Please see {@see GroupServiceClient::groupName()} for help formatting this field.
+     *
+     * @return \Google\Cloud\Monitoring\V3\GetGroupRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name): self
+    {
+        return (new self())
+            ->setName($name);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The group to retrieve. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\GroupService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The group to retrieve. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The group to retrieve. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetMetricDescriptorRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetMetricDescriptorRequest.php
new file mode 100644
index 000000000000..360bdfac4cc5
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetMetricDescriptorRequest.php
@@ -0,0 +1,103 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `GetMetricDescriptor` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.GetMetricDescriptorRequest</code>
+ */
+class GetMetricDescriptorRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The metric descriptor on which to execute the request. The format
+     * is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/metricDescriptors/[METRIC_ID]
+     * An example value of `[METRIC_ID]` is
+     * `"compute.googleapis.com/instance/disk/read_bytes_count"`.
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+
+    /**
+     * @param string $name Required. The metric descriptor on which to execute the request. The format
+     *                     is:
+     *
+     *                     projects/[PROJECT_ID_OR_NUMBER]/metricDescriptors/[METRIC_ID]
+     *
+     *                     An example value of `[METRIC_ID]` is
+     *                     `"compute.googleapis.com/instance/disk/read_bytes_count"`. Please see
+     *                     {@see MetricServiceClient::metricDescriptorName()} for help formatting this field.
+     *
+     * @return \Google\Cloud\Monitoring\V3\GetMetricDescriptorRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name): self
+    {
+        return (new self())
+            ->setName($name);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The metric descriptor on which to execute the request. The format
+     *           is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/metricDescriptors/[METRIC_ID]
+     *           An example value of `[METRIC_ID]` is
+     *           `"compute.googleapis.com/instance/disk/read_bytes_count"`.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\MetricService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The metric descriptor on which to execute the request. The format
+     * is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/metricDescriptors/[METRIC_ID]
+     * An example value of `[METRIC_ID]` is
+     * `"compute.googleapis.com/instance/disk/read_bytes_count"`.
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The metric descriptor on which to execute the request. The format
+     * is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/metricDescriptors/[METRIC_ID]
+     * An example value of `[METRIC_ID]` is
+     * `"compute.googleapis.com/instance/disk/read_bytes_count"`.
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetMonitoredResourceDescriptorRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetMonitoredResourceDescriptorRequest.php
new file mode 100644
index 000000000000..82d4800c5e15
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetMonitoredResourceDescriptorRequest.php
@@ -0,0 +1,98 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `GetMonitoredResourceDescriptor` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.GetMonitoredResourceDescriptorRequest</code>
+ */
+class GetMonitoredResourceDescriptorRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The monitored resource descriptor to get.  The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/monitoredResourceDescriptors/[RESOURCE_TYPE]
+     * The `[RESOURCE_TYPE]` is a predefined type, such as
+     * `cloudsql_database`.
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+
+    /**
+     * @param string $name Required. The monitored resource descriptor to get.  The format is:
+     *
+     *                     projects/[PROJECT_ID_OR_NUMBER]/monitoredResourceDescriptors/[RESOURCE_TYPE]
+     *
+     *                     The `[RESOURCE_TYPE]` is a predefined type, such as
+     *                     `cloudsql_database`. Please see
+     *                     {@see MetricServiceClient::monitoredResourceDescriptorName()} for help formatting this field.
+     *
+     * @return \Google\Cloud\Monitoring\V3\GetMonitoredResourceDescriptorRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name): self
+    {
+        return (new self())
+            ->setName($name);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The monitored resource descriptor to get.  The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/monitoredResourceDescriptors/[RESOURCE_TYPE]
+     *           The `[RESOURCE_TYPE]` is a predefined type, such as
+     *           `cloudsql_database`.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\MetricService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The monitored resource descriptor to get.  The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/monitoredResourceDescriptors/[RESOURCE_TYPE]
+     * The `[RESOURCE_TYPE]` is a predefined type, such as
+     * `cloudsql_database`.
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The monitored resource descriptor to get.  The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/monitoredResourceDescriptors/[RESOURCE_TYPE]
+     * The `[RESOURCE_TYPE]` is a predefined type, such as
+     * `cloudsql_database`.
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetNotificationChannelDescriptorRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetNotificationChannelDescriptorRequest.php
new file mode 100644
index 000000000000..f7ff869b7298
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetNotificationChannelDescriptorRequest.php
@@ -0,0 +1,87 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/notification_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `GetNotificationChannelDescriptor` response.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.GetNotificationChannelDescriptorRequest</code>
+ */
+class GetNotificationChannelDescriptorRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The channel type for which to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/notificationChannelDescriptors/[CHANNEL_TYPE]
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+
+    /**
+     * @param string $name Required. The channel type for which to execute the request. The format is:
+     *
+     *                     projects/[PROJECT_ID_OR_NUMBER]/notificationChannelDescriptors/[CHANNEL_TYPE]
+     *                     Please see {@see NotificationChannelServiceClient::notificationChannelDescriptorName()} for help formatting this field.
+     *
+     * @return \Google\Cloud\Monitoring\V3\GetNotificationChannelDescriptorRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name): self
+    {
+        return (new self())
+            ->setName($name);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The channel type for which to execute the request. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/notificationChannelDescriptors/[CHANNEL_TYPE]
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\NotificationService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The channel type for which to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/notificationChannelDescriptors/[CHANNEL_TYPE]
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The channel type for which to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/notificationChannelDescriptors/[CHANNEL_TYPE]
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetNotificationChannelRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetNotificationChannelRequest.php
new file mode 100644
index 000000000000..708a1446cd9c
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetNotificationChannelRequest.php
@@ -0,0 +1,87 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/notification_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `GetNotificationChannel` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.GetNotificationChannelRequest</code>
+ */
+class GetNotificationChannelRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The channel for which to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/notificationChannels/[CHANNEL_ID]
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+
+    /**
+     * @param string $name Required. The channel for which to execute the request. The format is:
+     *
+     *                     projects/[PROJECT_ID_OR_NUMBER]/notificationChannels/[CHANNEL_ID]
+     *                     Please see {@see NotificationChannelServiceClient::notificationChannelName()} for help formatting this field.
+     *
+     * @return \Google\Cloud\Monitoring\V3\GetNotificationChannelRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name): self
+    {
+        return (new self())
+            ->setName($name);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The channel for which to execute the request. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/notificationChannels/[CHANNEL_ID]
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\NotificationService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The channel for which to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/notificationChannels/[CHANNEL_ID]
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The channel for which to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/notificationChannels/[CHANNEL_ID]
+     *
+     * Generated from protobuf field <code>string name = 3 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetNotificationChannelVerificationCodeRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetNotificationChannelVerificationCodeRequest.php
new file mode 100644
index 000000000000..acb10877c211
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetNotificationChannelVerificationCodeRequest.php
@@ -0,0 +1,167 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/notification_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `GetNotificationChannelVerificationCode` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.GetNotificationChannelVerificationCodeRequest</code>
+ */
+class GetNotificationChannelVerificationCodeRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The notification channel for which a verification code is to be
+     * generated and retrieved. This must name a channel that is already verified;
+     * if the specified channel is not verified, the request will fail.
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+    /**
+     * The desired expiration time. If specified, the API will guarantee that
+     * the returned code will not be valid after the specified timestamp;
+     * however, the API cannot guarantee that the returned code will be
+     * valid for at least as long as the requested time (the API puts an upper
+     * bound on the amount of time for which a code may be valid). If omitted,
+     * a default expiration will be used, which may be less than the max
+     * permissible expiration (so specifying an expiration may extend the
+     * code's lifetime over omitting an expiration, even though the API does
+     * impose an upper limit on the maximum expiration that is permitted).
+     *
+     * Generated from protobuf field <code>.google.protobuf.Timestamp expire_time = 2;</code>
+     */
+    protected $expire_time = null;
+
+    /**
+     * @param string $name Required. The notification channel for which a verification code is to be
+     *                     generated and retrieved. This must name a channel that is already verified;
+     *                     if the specified channel is not verified, the request will fail. Please see
+     *                     {@see NotificationChannelServiceClient::notificationChannelName()} for help formatting this field.
+     *
+     * @return \Google\Cloud\Monitoring\V3\GetNotificationChannelVerificationCodeRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name): self
+    {
+        return (new self())
+            ->setName($name);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The notification channel for which a verification code is to be
+     *           generated and retrieved. This must name a channel that is already verified;
+     *           if the specified channel is not verified, the request will fail.
+     *     @type \Google\Protobuf\Timestamp $expire_time
+     *           The desired expiration time. If specified, the API will guarantee that
+     *           the returned code will not be valid after the specified timestamp;
+     *           however, the API cannot guarantee that the returned code will be
+     *           valid for at least as long as the requested time (the API puts an upper
+     *           bound on the amount of time for which a code may be valid). If omitted,
+     *           a default expiration will be used, which may be less than the max
+     *           permissible expiration (so specifying an expiration may extend the
+     *           code's lifetime over omitting an expiration, even though the API does
+     *           impose an upper limit on the maximum expiration that is permitted).
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\NotificationService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The notification channel for which a verification code is to be
+     * generated and retrieved. This must name a channel that is already verified;
+     * if the specified channel is not verified, the request will fail.
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The notification channel for which a verification code is to be
+     * generated and retrieved. This must name a channel that is already verified;
+     * if the specified channel is not verified, the request will fail.
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * The desired expiration time. If specified, the API will guarantee that
+     * the returned code will not be valid after the specified timestamp;
+     * however, the API cannot guarantee that the returned code will be
+     * valid for at least as long as the requested time (the API puts an upper
+     * bound on the amount of time for which a code may be valid). If omitted,
+     * a default expiration will be used, which may be less than the max
+     * permissible expiration (so specifying an expiration may extend the
+     * code's lifetime over omitting an expiration, even though the API does
+     * impose an upper limit on the maximum expiration that is permitted).
+     *
+     * Generated from protobuf field <code>.google.protobuf.Timestamp expire_time = 2;</code>
+     * @return \Google\Protobuf\Timestamp|null
+     */
+    public function getExpireTime()
+    {
+        return $this->expire_time;
+    }
+
+    public function hasExpireTime()
+    {
+        return isset($this->expire_time);
+    }
+
+    public function clearExpireTime()
+    {
+        unset($this->expire_time);
+    }
+
+    /**
+     * The desired expiration time. If specified, the API will guarantee that
+     * the returned code will not be valid after the specified timestamp;
+     * however, the API cannot guarantee that the returned code will be
+     * valid for at least as long as the requested time (the API puts an upper
+     * bound on the amount of time for which a code may be valid). If omitted,
+     * a default expiration will be used, which may be less than the max
+     * permissible expiration (so specifying an expiration may extend the
+     * code's lifetime over omitting an expiration, even though the API does
+     * impose an upper limit on the maximum expiration that is permitted).
+     *
+     * Generated from protobuf field <code>.google.protobuf.Timestamp expire_time = 2;</code>
+     * @param \Google\Protobuf\Timestamp $var
+     * @return $this
+     */
+    public function setExpireTime($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\Timestamp::class);
+        $this->expire_time = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetNotificationChannelVerificationCodeResponse.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetNotificationChannelVerificationCodeResponse.php
new file mode 100644
index 000000000000..b62d064177a3
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetNotificationChannelVerificationCodeResponse.php
@@ -0,0 +1,131 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/notification_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `GetNotificationChannelVerificationCode` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.GetNotificationChannelVerificationCodeResponse</code>
+ */
+class GetNotificationChannelVerificationCodeResponse extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The verification code, which may be used to verify other channels
+     * that have an equivalent identity (i.e. other channels of the same
+     * type with the same fingerprint such as other email channels with
+     * the same email address or other sms channels with the same number).
+     *
+     * Generated from protobuf field <code>string code = 1;</code>
+     */
+    protected $code = '';
+    /**
+     * The expiration time associated with the code that was returned. If
+     * an expiration was provided in the request, this is the minimum of the
+     * requested expiration in the request and the max permitted expiration.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Timestamp expire_time = 2;</code>
+     */
+    protected $expire_time = null;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $code
+     *           The verification code, which may be used to verify other channels
+     *           that have an equivalent identity (i.e. other channels of the same
+     *           type with the same fingerprint such as other email channels with
+     *           the same email address or other sms channels with the same number).
+     *     @type \Google\Protobuf\Timestamp $expire_time
+     *           The expiration time associated with the code that was returned. If
+     *           an expiration was provided in the request, this is the minimum of the
+     *           requested expiration in the request and the max permitted expiration.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\NotificationService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The verification code, which may be used to verify other channels
+     * that have an equivalent identity (i.e. other channels of the same
+     * type with the same fingerprint such as other email channels with
+     * the same email address or other sms channels with the same number).
+     *
+     * Generated from protobuf field <code>string code = 1;</code>
+     * @return string
+     */
+    public function getCode()
+    {
+        return $this->code;
+    }
+
+    /**
+     * The verification code, which may be used to verify other channels
+     * that have an equivalent identity (i.e. other channels of the same
+     * type with the same fingerprint such as other email channels with
+     * the same email address or other sms channels with the same number).
+     *
+     * Generated from protobuf field <code>string code = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setCode($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->code = $var;
+
+        return $this;
+    }
+
+    /**
+     * The expiration time associated with the code that was returned. If
+     * an expiration was provided in the request, this is the minimum of the
+     * requested expiration in the request and the max permitted expiration.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Timestamp expire_time = 2;</code>
+     * @return \Google\Protobuf\Timestamp|null
+     */
+    public function getExpireTime()
+    {
+        return $this->expire_time;
+    }
+
+    public function hasExpireTime()
+    {
+        return isset($this->expire_time);
+    }
+
+    public function clearExpireTime()
+    {
+        unset($this->expire_time);
+    }
+
+    /**
+     * The expiration time associated with the code that was returned. If
+     * an expiration was provided in the request, this is the minimum of the
+     * requested expiration in the request and the max permitted expiration.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Timestamp expire_time = 2;</code>
+     * @param \Google\Protobuf\Timestamp $var
+     * @return $this
+     */
+    public function setExpireTime($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\Timestamp::class);
+        $this->expire_time = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetServiceLevelObjectiveRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetServiceLevelObjectiveRequest.php
new file mode 100644
index 000000000000..c22d24403f63
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetServiceLevelObjectiveRequest.php
@@ -0,0 +1,138 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `GetServiceLevelObjective` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.GetServiceLevelObjectiveRequest</code>
+ */
+class GetServiceLevelObjectiveRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. Resource name of the `ServiceLevelObjective` to get. The format
+     * is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]/serviceLevelObjectives/[SLO_NAME]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+    /**
+     * View of the `ServiceLevelObjective` to return. If `DEFAULT`, return the
+     * `ServiceLevelObjective` as originally defined. If `EXPLICIT` and the
+     * `ServiceLevelObjective` is defined in terms of a `BasicSli`, replace the
+     * `BasicSli` with a `RequestBasedSli` spelling out how the SLI is computed.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.ServiceLevelObjective.View view = 2;</code>
+     */
+    protected $view = 0;
+
+    /**
+     * @param string $name Required. Resource name of the `ServiceLevelObjective` to get. The format
+     *                     is:
+     *
+     *                     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]/serviceLevelObjectives/[SLO_NAME]
+     *                     Please see {@see ServiceMonitoringServiceClient::serviceLevelObjectiveName()} for help formatting this field.
+     *
+     * @return \Google\Cloud\Monitoring\V3\GetServiceLevelObjectiveRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name): self
+    {
+        return (new self())
+            ->setName($name);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. Resource name of the `ServiceLevelObjective` to get. The format
+     *           is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]/serviceLevelObjectives/[SLO_NAME]
+     *     @type int $view
+     *           View of the `ServiceLevelObjective` to return. If `DEFAULT`, return the
+     *           `ServiceLevelObjective` as originally defined. If `EXPLICIT` and the
+     *           `ServiceLevelObjective` is defined in terms of a `BasicSli`, replace the
+     *           `BasicSli` with a `RequestBasedSli` spelling out how the SLI is computed.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\ServiceService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. Resource name of the `ServiceLevelObjective` to get. The format
+     * is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]/serviceLevelObjectives/[SLO_NAME]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. Resource name of the `ServiceLevelObjective` to get. The format
+     * is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]/serviceLevelObjectives/[SLO_NAME]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * View of the `ServiceLevelObjective` to return. If `DEFAULT`, return the
+     * `ServiceLevelObjective` as originally defined. If `EXPLICIT` and the
+     * `ServiceLevelObjective` is defined in terms of a `BasicSli`, replace the
+     * `BasicSli` with a `RequestBasedSli` spelling out how the SLI is computed.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.ServiceLevelObjective.View view = 2;</code>
+     * @return int
+     */
+    public function getView()
+    {
+        return $this->view;
+    }
+
+    /**
+     * View of the `ServiceLevelObjective` to return. If `DEFAULT`, return the
+     * `ServiceLevelObjective` as originally defined. If `EXPLICIT` and the
+     * `ServiceLevelObjective` is defined in terms of a `BasicSli`, replace the
+     * `BasicSli` with a `RequestBasedSli` spelling out how the SLI is computed.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.ServiceLevelObjective.View view = 2;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setView($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Cloud\Monitoring\V3\ServiceLevelObjective\View::class);
+        $this->view = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetServiceRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetServiceRequest.php
new file mode 100644
index 000000000000..6113d513f423
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetServiceRequest.php
@@ -0,0 +1,87 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `GetService` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.GetServiceRequest</code>
+ */
+class GetServiceRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. Resource name of the `Service`. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+
+    /**
+     * @param string $name Required. Resource name of the `Service`. The format is:
+     *
+     *                     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     *                     Please see {@see ServiceMonitoringServiceClient::serviceName()} for help formatting this field.
+     *
+     * @return \Google\Cloud\Monitoring\V3\GetServiceRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name): self
+    {
+        return (new self())
+            ->setName($name);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. Resource name of the `Service`. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\ServiceService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. Resource name of the `Service`. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. Resource name of the `Service`. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetSnoozeRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetSnoozeRequest.php
new file mode 100644
index 000000000000..83b9da5e20f6
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetSnoozeRequest.php
@@ -0,0 +1,88 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/snooze_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The message definition for retrieving a `Snooze`. Users must specify the
+ * field, `name`, which identifies the `Snooze`.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.GetSnoozeRequest</code>
+ */
+class GetSnoozeRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The ID of the `Snooze` to retrieve. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/snoozes/[SNOOZE_ID]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+
+    /**
+     * @param string $name Required. The ID of the `Snooze` to retrieve. The format is:
+     *
+     *                     projects/[PROJECT_ID_OR_NUMBER]/snoozes/[SNOOZE_ID]
+     *                     Please see {@see SnoozeServiceClient::snoozeName()} for help formatting this field.
+     *
+     * @return \Google\Cloud\Monitoring\V3\GetSnoozeRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name): self
+    {
+        return (new self())
+            ->setName($name);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The ID of the `Snooze` to retrieve. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/snoozes/[SNOOZE_ID]
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\SnoozeService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The ID of the `Snooze` to retrieve. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/snoozes/[SNOOZE_ID]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The ID of the `Snooze` to retrieve. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/snoozes/[SNOOZE_ID]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetUptimeCheckConfigRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetUptimeCheckConfigRequest.php
new file mode 100644
index 000000000000..83b9a3f2eaa3
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GetUptimeCheckConfigRequest.php
@@ -0,0 +1,87 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The protocol for the `GetUptimeCheckConfig` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.GetUptimeCheckConfigRequest</code>
+ */
+class GetUptimeCheckConfigRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The Uptime check configuration to retrieve. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/uptimeCheckConfigs/[UPTIME_CHECK_ID]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+
+    /**
+     * @param string $name Required. The Uptime check configuration to retrieve. The format is:
+     *
+     *                     projects/[PROJECT_ID_OR_NUMBER]/uptimeCheckConfigs/[UPTIME_CHECK_ID]
+     *                     Please see {@see UptimeCheckServiceClient::uptimeCheckConfigName()} for help formatting this field.
+     *
+     * @return \Google\Cloud\Monitoring\V3\GetUptimeCheckConfigRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name): self
+    {
+        return (new self())
+            ->setName($name);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The Uptime check configuration to retrieve. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/uptimeCheckConfigs/[UPTIME_CHECK_ID]
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\UptimeService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The Uptime check configuration to retrieve. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/uptimeCheckConfigs/[UPTIME_CHECK_ID]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The Uptime check configuration to retrieve. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/uptimeCheckConfigs/[UPTIME_CHECK_ID]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Group.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Group.php
new file mode 100644
index 000000000000..4a768d02d746
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Group.php
@@ -0,0 +1,257 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/group.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The description of a dynamic collection of monitored resources. Each group
+ * has a filter that is matched against monitored resources and their associated
+ * metadata. If a group's filter matches an available monitored resource, then
+ * that resource is a member of that group.  Groups can contain any number of
+ * monitored resources, and each monitored resource can be a member of any
+ * number of groups.
+ * Groups can be nested in parent-child hierarchies. The `parentName` field
+ * identifies an optional parent for each group.  If a group has a parent, then
+ * the only monitored resources available to be matched by the group's filter
+ * are the resources contained in the parent group.  In other words, a group
+ * contains the monitored resources that match its filter and the filters of all
+ * the group's ancestors.  A group without a parent can contain any monitored
+ * resource.
+ * For example, consider an infrastructure running a set of instances with two
+ * user-defined tags: `"environment"` and `"role"`. A parent group has a filter,
+ * `environment="production"`.  A child of that parent group has a filter,
+ * `role="transcoder"`.  The parent group contains all instances in the
+ * production environment, regardless of their roles.  The child group contains
+ * instances that have the transcoder role *and* are in the production
+ * environment.
+ * The monitored resources contained in a group can change at any moment,
+ * depending on what resources exist and what filters are associated with the
+ * group and its ancestors.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.Group</code>
+ */
+class Group extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Output only. The name of this group. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     * When creating a group, this field is ignored and a new name is created
+     * consisting of the project specified in the call to `CreateGroup`
+     * and a unique `[GROUP_ID]` that is generated automatically.
+     *
+     * Generated from protobuf field <code>string name = 1;</code>
+     */
+    protected $name = '';
+    /**
+     * A user-assigned name for this group, used only for display purposes.
+     *
+     * Generated from protobuf field <code>string display_name = 2;</code>
+     */
+    protected $display_name = '';
+    /**
+     * The name of the group's parent, if it has one. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     * For groups with no parent, `parent_name` is the empty string, `""`.
+     *
+     * Generated from protobuf field <code>string parent_name = 3;</code>
+     */
+    protected $parent_name = '';
+    /**
+     * The filter used to determine which monitored resources belong to this
+     * group.
+     *
+     * Generated from protobuf field <code>string filter = 5;</code>
+     */
+    protected $filter = '';
+    /**
+     * If true, the members of this group are considered to be a cluster.
+     * The system can perform additional analysis on groups that are clusters.
+     *
+     * Generated from protobuf field <code>bool is_cluster = 6;</code>
+     */
+    protected $is_cluster = false;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Output only. The name of this group. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     *           When creating a group, this field is ignored and a new name is created
+     *           consisting of the project specified in the call to `CreateGroup`
+     *           and a unique `[GROUP_ID]` that is generated automatically.
+     *     @type string $display_name
+     *           A user-assigned name for this group, used only for display purposes.
+     *     @type string $parent_name
+     *           The name of the group's parent, if it has one. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     *           For groups with no parent, `parent_name` is the empty string, `""`.
+     *     @type string $filter
+     *           The filter used to determine which monitored resources belong to this
+     *           group.
+     *     @type bool $is_cluster
+     *           If true, the members of this group are considered to be a cluster.
+     *           The system can perform additional analysis on groups that are clusters.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Group::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Output only. The name of this group. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     * When creating a group, this field is ignored and a new name is created
+     * consisting of the project specified in the call to `CreateGroup`
+     * and a unique `[GROUP_ID]` that is generated automatically.
+     *
+     * Generated from protobuf field <code>string name = 1;</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Output only. The name of this group. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     * When creating a group, this field is ignored and a new name is created
+     * consisting of the project specified in the call to `CreateGroup`
+     * and a unique `[GROUP_ID]` that is generated automatically.
+     *
+     * Generated from protobuf field <code>string name = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * A user-assigned name for this group, used only for display purposes.
+     *
+     * Generated from protobuf field <code>string display_name = 2;</code>
+     * @return string
+     */
+    public function getDisplayName()
+    {
+        return $this->display_name;
+    }
+
+    /**
+     * A user-assigned name for this group, used only for display purposes.
+     *
+     * Generated from protobuf field <code>string display_name = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setDisplayName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->display_name = $var;
+
+        return $this;
+    }
+
+    /**
+     * The name of the group's parent, if it has one. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     * For groups with no parent, `parent_name` is the empty string, `""`.
+     *
+     * Generated from protobuf field <code>string parent_name = 3;</code>
+     * @return string
+     */
+    public function getParentName()
+    {
+        return $this->parent_name;
+    }
+
+    /**
+     * The name of the group's parent, if it has one. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     * For groups with no parent, `parent_name` is the empty string, `""`.
+     *
+     * Generated from protobuf field <code>string parent_name = 3;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setParentName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->parent_name = $var;
+
+        return $this;
+    }
+
+    /**
+     * The filter used to determine which monitored resources belong to this
+     * group.
+     *
+     * Generated from protobuf field <code>string filter = 5;</code>
+     * @return string
+     */
+    public function getFilter()
+    {
+        return $this->filter;
+    }
+
+    /**
+     * The filter used to determine which monitored resources belong to this
+     * group.
+     *
+     * Generated from protobuf field <code>string filter = 5;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setFilter($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->filter = $var;
+
+        return $this;
+    }
+
+    /**
+     * If true, the members of this group are considered to be a cluster.
+     * The system can perform additional analysis on groups that are clusters.
+     *
+     * Generated from protobuf field <code>bool is_cluster = 6;</code>
+     * @return bool
+     */
+    public function getIsCluster()
+    {
+        return $this->is_cluster;
+    }
+
+    /**
+     * If true, the members of this group are considered to be a cluster.
+     * The system can perform additional analysis on groups that are clusters.
+     *
+     * Generated from protobuf field <code>bool is_cluster = 6;</code>
+     * @param bool $var
+     * @return $this
+     */
+    public function setIsCluster($var)
+    {
+        GPBUtil::checkBool($var);
+        $this->is_cluster = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GroupResourceType.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GroupResourceType.php
new file mode 100644
index 000000000000..ddf9d0eee1a8
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/GroupResourceType.php
@@ -0,0 +1,66 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use UnexpectedValueException;
+
+/**
+ * The supported resource types that can be used as values of
+ * `group_resource.resource_type`.
+ * `INSTANCE` includes `gce_instance` and `aws_ec2_instance` resource types.
+ * The resource types `gae_app` and `uptime_url` are not valid here because
+ * group checks on App Engine modules and URLs are not allowed.
+ *
+ * Protobuf type <code>google.monitoring.v3.GroupResourceType</code>
+ */
+class GroupResourceType
+{
+    /**
+     * Default value (not valid).
+     *
+     * Generated from protobuf enum <code>RESOURCE_TYPE_UNSPECIFIED = 0;</code>
+     */
+    const RESOURCE_TYPE_UNSPECIFIED = 0;
+    /**
+     * A group of instances from Google Cloud Platform (GCP) or
+     * Amazon Web Services (AWS).
+     *
+     * Generated from protobuf enum <code>INSTANCE = 1;</code>
+     */
+    const INSTANCE = 1;
+    /**
+     * A group of Amazon ELB load balancers.
+     *
+     * Generated from protobuf enum <code>AWS_ELB_LOAD_BALANCER = 2;</code>
+     */
+    const AWS_ELB_LOAD_BALANCER = 2;
+
+    private static $valueToName = [
+        self::RESOURCE_TYPE_UNSPECIFIED => 'RESOURCE_TYPE_UNSPECIFIED',
+        self::INSTANCE => 'INSTANCE',
+        self::AWS_ELB_LOAD_BALANCER => 'AWS_ELB_LOAD_BALANCER',
+    ];
+
+    public static function name($value)
+    {
+        if (!isset(self::$valueToName[$value])) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no name defined for value %s', __CLASS__, $value));
+        }
+        return self::$valueToName[$value];
+    }
+
+
+    public static function value($name)
+    {
+        $const = __CLASS__ . '::' . strtoupper($name);
+        if (!defined($const)) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no value defined for name %s', __CLASS__, $name));
+        }
+        return constant($const);
+    }
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/InternalChecker.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/InternalChecker.php
new file mode 100644
index 000000000000..19273fdc3f2b
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/InternalChecker.php
@@ -0,0 +1,271 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * An internal checker allows Uptime checks to run on private/internal GCP
+ * resources.
+ *
+ * @deprecated
+ * Generated from protobuf message <code>google.monitoring.v3.InternalChecker</code>
+ */
+class InternalChecker extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * A unique resource name for this InternalChecker. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/internalCheckers/[INTERNAL_CHECKER_ID]
+     * `[PROJECT_ID_OR_NUMBER]` is the Cloud Monitoring Metrics Scope project for
+     * the Uptime check config associated with the internal checker.
+     *
+     * Generated from protobuf field <code>string name = 1;</code>
+     */
+    protected $name = '';
+    /**
+     * The checker's human-readable name. The display name
+     * should be unique within a Cloud Monitoring Metrics Scope in order to make
+     * it easier to identify; however, uniqueness is not enforced.
+     *
+     * Generated from protobuf field <code>string display_name = 2;</code>
+     */
+    protected $display_name = '';
+    /**
+     * The [GCP VPC network](https://cloud.google.com/vpc/docs/vpc) where the
+     * internal resource lives (ex: "default").
+     *
+     * Generated from protobuf field <code>string network = 3;</code>
+     */
+    protected $network = '';
+    /**
+     * The GCP zone the Uptime check should egress from. Only respected for
+     * internal Uptime checks, where internal_network is specified.
+     *
+     * Generated from protobuf field <code>string gcp_zone = 4;</code>
+     */
+    protected $gcp_zone = '';
+    /**
+     * The GCP project ID where the internal checker lives. Not necessary
+     * the same as the Metrics Scope project.
+     *
+     * Generated from protobuf field <code>string peer_project_id = 6;</code>
+     */
+    protected $peer_project_id = '';
+    /**
+     * The current operational state of the internal checker.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.InternalChecker.State state = 7;</code>
+     */
+    protected $state = 0;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           A unique resource name for this InternalChecker. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/internalCheckers/[INTERNAL_CHECKER_ID]
+     *           `[PROJECT_ID_OR_NUMBER]` is the Cloud Monitoring Metrics Scope project for
+     *           the Uptime check config associated with the internal checker.
+     *     @type string $display_name
+     *           The checker's human-readable name. The display name
+     *           should be unique within a Cloud Monitoring Metrics Scope in order to make
+     *           it easier to identify; however, uniqueness is not enforced.
+     *     @type string $network
+     *           The [GCP VPC network](https://cloud.google.com/vpc/docs/vpc) where the
+     *           internal resource lives (ex: "default").
+     *     @type string $gcp_zone
+     *           The GCP zone the Uptime check should egress from. Only respected for
+     *           internal Uptime checks, where internal_network is specified.
+     *     @type string $peer_project_id
+     *           The GCP project ID where the internal checker lives. Not necessary
+     *           the same as the Metrics Scope project.
+     *     @type int $state
+     *           The current operational state of the internal checker.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Uptime::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * A unique resource name for this InternalChecker. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/internalCheckers/[INTERNAL_CHECKER_ID]
+     * `[PROJECT_ID_OR_NUMBER]` is the Cloud Monitoring Metrics Scope project for
+     * the Uptime check config associated with the internal checker.
+     *
+     * Generated from protobuf field <code>string name = 1;</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * A unique resource name for this InternalChecker. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/internalCheckers/[INTERNAL_CHECKER_ID]
+     * `[PROJECT_ID_OR_NUMBER]` is the Cloud Monitoring Metrics Scope project for
+     * the Uptime check config associated with the internal checker.
+     *
+     * Generated from protobuf field <code>string name = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * The checker's human-readable name. The display name
+     * should be unique within a Cloud Monitoring Metrics Scope in order to make
+     * it easier to identify; however, uniqueness is not enforced.
+     *
+     * Generated from protobuf field <code>string display_name = 2;</code>
+     * @return string
+     */
+    public function getDisplayName()
+    {
+        return $this->display_name;
+    }
+
+    /**
+     * The checker's human-readable name. The display name
+     * should be unique within a Cloud Monitoring Metrics Scope in order to make
+     * it easier to identify; however, uniqueness is not enforced.
+     *
+     * Generated from protobuf field <code>string display_name = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setDisplayName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->display_name = $var;
+
+        return $this;
+    }
+
+    /**
+     * The [GCP VPC network](https://cloud.google.com/vpc/docs/vpc) where the
+     * internal resource lives (ex: "default").
+     *
+     * Generated from protobuf field <code>string network = 3;</code>
+     * @return string
+     */
+    public function getNetwork()
+    {
+        return $this->network;
+    }
+
+    /**
+     * The [GCP VPC network](https://cloud.google.com/vpc/docs/vpc) where the
+     * internal resource lives (ex: "default").
+     *
+     * Generated from protobuf field <code>string network = 3;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setNetwork($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->network = $var;
+
+        return $this;
+    }
+
+    /**
+     * The GCP zone the Uptime check should egress from. Only respected for
+     * internal Uptime checks, where internal_network is specified.
+     *
+     * Generated from protobuf field <code>string gcp_zone = 4;</code>
+     * @return string
+     */
+    public function getGcpZone()
+    {
+        return $this->gcp_zone;
+    }
+
+    /**
+     * The GCP zone the Uptime check should egress from. Only respected for
+     * internal Uptime checks, where internal_network is specified.
+     *
+     * Generated from protobuf field <code>string gcp_zone = 4;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setGcpZone($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->gcp_zone = $var;
+
+        return $this;
+    }
+
+    /**
+     * The GCP project ID where the internal checker lives. Not necessary
+     * the same as the Metrics Scope project.
+     *
+     * Generated from protobuf field <code>string peer_project_id = 6;</code>
+     * @return string
+     */
+    public function getPeerProjectId()
+    {
+        return $this->peer_project_id;
+    }
+
+    /**
+     * The GCP project ID where the internal checker lives. Not necessary
+     * the same as the Metrics Scope project.
+     *
+     * Generated from protobuf field <code>string peer_project_id = 6;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setPeerProjectId($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->peer_project_id = $var;
+
+        return $this;
+    }
+
+    /**
+     * The current operational state of the internal checker.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.InternalChecker.State state = 7;</code>
+     * @return int
+     */
+    public function getState()
+    {
+        return $this->state;
+    }
+
+    /**
+     * The current operational state of the internal checker.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.InternalChecker.State state = 7;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setState($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Cloud\Monitoring\V3\InternalChecker\State::class);
+        $this->state = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/InternalChecker/State.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/InternalChecker/State.php
new file mode 100644
index 000000000000..d006a60c773f
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/InternalChecker/State.php
@@ -0,0 +1,74 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime.proto
+
+namespace Google\Cloud\Monitoring\V3\InternalChecker;
+
+use UnexpectedValueException;
+
+/**
+ * Operational states for an internal checker.
+ *
+ * Protobuf type <code>google.monitoring.v3.InternalChecker.State</code>
+ */
+class State
+{
+    /**
+     * An internal checker should never be in the unspecified state.
+     *
+     * Generated from protobuf enum <code>UNSPECIFIED = 0;</code>
+     */
+    const UNSPECIFIED = 0;
+    /**
+     * The checker is being created, provisioned, and configured. A checker in
+     * this state can be returned by `ListInternalCheckers` or
+     * `GetInternalChecker`, as well as by examining the [long running
+     * Operation](https://cloud.google.com/apis/design/design_patterns#long_running_operations)
+     * that created it.
+     *
+     * Generated from protobuf enum <code>CREATING = 1;</code>
+     */
+    const CREATING = 1;
+    /**
+     * The checker is running and available for use. A checker in this state
+     * can be returned by `ListInternalCheckers` or `GetInternalChecker` as
+     * well as by examining the [long running
+     * Operation](https://cloud.google.com/apis/design/design_patterns#long_running_operations)
+     * that created it.
+     * If a checker is being torn down, it is neither visible nor usable, so
+     * there is no "deleting" or "down" state.
+     *
+     * Generated from protobuf enum <code>RUNNING = 2;</code>
+     */
+    const RUNNING = 2;
+
+    private static $valueToName = [
+        self::UNSPECIFIED => 'UNSPECIFIED',
+        self::CREATING => 'CREATING',
+        self::RUNNING => 'RUNNING',
+    ];
+
+    public static function name($value)
+    {
+        if (!isset(self::$valueToName[$value])) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no name defined for value %s', __CLASS__, $value));
+        }
+        return self::$valueToName[$value];
+    }
+
+
+    public static function value($name)
+    {
+        $const = __CLASS__ . '::' . strtoupper($name);
+        if (!defined($const)) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no value defined for name %s', __CLASS__, $name));
+        }
+        return constant($const);
+    }
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(State::class, \Google\Cloud\Monitoring\V3\InternalChecker_State::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/LabelValue.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/LabelValue.php
new file mode 100644
index 000000000000..3a66a26a4359
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/LabelValue.php
@@ -0,0 +1,141 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A label value.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.LabelValue</code>
+ */
+class LabelValue extends \Google\Protobuf\Internal\Message
+{
+    protected $value;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type bool $bool_value
+     *           A bool label value.
+     *     @type int|string $int64_value
+     *           An int64 label value.
+     *     @type string $string_value
+     *           A string label value.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Metric::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * A bool label value.
+     *
+     * Generated from protobuf field <code>bool bool_value = 1;</code>
+     * @return bool
+     */
+    public function getBoolValue()
+    {
+        return $this->readOneof(1);
+    }
+
+    public function hasBoolValue()
+    {
+        return $this->hasOneof(1);
+    }
+
+    /**
+     * A bool label value.
+     *
+     * Generated from protobuf field <code>bool bool_value = 1;</code>
+     * @param bool $var
+     * @return $this
+     */
+    public function setBoolValue($var)
+    {
+        GPBUtil::checkBool($var);
+        $this->writeOneof(1, $var);
+
+        return $this;
+    }
+
+    /**
+     * An int64 label value.
+     *
+     * Generated from protobuf field <code>int64 int64_value = 2;</code>
+     * @return int|string
+     */
+    public function getInt64Value()
+    {
+        return $this->readOneof(2);
+    }
+
+    public function hasInt64Value()
+    {
+        return $this->hasOneof(2);
+    }
+
+    /**
+     * An int64 label value.
+     *
+     * Generated from protobuf field <code>int64 int64_value = 2;</code>
+     * @param int|string $var
+     * @return $this
+     */
+    public function setInt64Value($var)
+    {
+        GPBUtil::checkInt64($var);
+        $this->writeOneof(2, $var);
+
+        return $this;
+    }
+
+    /**
+     * A string label value.
+     *
+     * Generated from protobuf field <code>string string_value = 3;</code>
+     * @return string
+     */
+    public function getStringValue()
+    {
+        return $this->readOneof(3);
+    }
+
+    public function hasStringValue()
+    {
+        return $this->hasOneof(3);
+    }
+
+    /**
+     * A string label value.
+     *
+     * Generated from protobuf field <code>string string_value = 3;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setStringValue($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->writeOneof(3, $var);
+
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getValue()
+    {
+        return $this->whichOneof("value");
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListAlertPoliciesRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListAlertPoliciesRequest.php
new file mode 100644
index 000000000000..cf35d504f674
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListAlertPoliciesRequest.php
@@ -0,0 +1,298 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The protocol for the `ListAlertPolicies` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ListAlertPoliciesRequest</code>
+ */
+class ListAlertPoliciesRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+     * alert policies are to be listed. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     * Note that this field names the parent container in which the alerting
+     * policies to be listed are stored. To retrieve a single alerting policy
+     * by name, use the
+     * [GetAlertPolicy][google.monitoring.v3.AlertPolicyService.GetAlertPolicy]
+     * operation, instead.
+     *
+     * Generated from protobuf field <code>string name = 4 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+    /**
+     * Optional. If provided, this field specifies the criteria that must be met
+     * by alert policies to be included in the response.
+     * For more details, see [sorting and
+     * filtering](https://cloud.google.com/monitoring/api/v3/sorting-and-filtering).
+     *
+     * Generated from protobuf field <code>string filter = 5 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    protected $filter = '';
+    /**
+     * Optional. A comma-separated list of fields by which to sort the result.
+     * Supports the same set of field references as the `filter` field. Entries
+     * can be prefixed with a minus sign to sort by the field in descending order.
+     * For more details, see [sorting and
+     * filtering](https://cloud.google.com/monitoring/api/v3/sorting-and-filtering).
+     *
+     * Generated from protobuf field <code>string order_by = 6 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    protected $order_by = '';
+    /**
+     * Optional. The maximum number of results to return in a single response.
+     *
+     * Generated from protobuf field <code>int32 page_size = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    protected $page_size = 0;
+    /**
+     * Optional. If this field is not empty then it must contain the
+     * `nextPageToken` value returned by a previous call to this method.  Using
+     * this field causes the method to return more results from the previous
+     * method call.
+     *
+     * Generated from protobuf field <code>string page_token = 3 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    protected $page_token = '';
+
+    /**
+     * @param string $name Required. The
+     *                     [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+     *                     alert policies are to be listed. The format is:
+     *
+     *                     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     *                     Note that this field names the parent container in which the alerting
+     *                     policies to be listed are stored. To retrieve a single alerting policy
+     *                     by name, use the
+     *                     [GetAlertPolicy][google.monitoring.v3.AlertPolicyService.GetAlertPolicy]
+     *                     operation, instead.
+     *
+     * @return \Google\Cloud\Monitoring\V3\ListAlertPoliciesRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name): self
+    {
+        return (new self())
+            ->setName($name);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The
+     *           [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+     *           alert policies are to be listed. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]
+     *           Note that this field names the parent container in which the alerting
+     *           policies to be listed are stored. To retrieve a single alerting policy
+     *           by name, use the
+     *           [GetAlertPolicy][google.monitoring.v3.AlertPolicyService.GetAlertPolicy]
+     *           operation, instead.
+     *     @type string $filter
+     *           Optional. If provided, this field specifies the criteria that must be met
+     *           by alert policies to be included in the response.
+     *           For more details, see [sorting and
+     *           filtering](https://cloud.google.com/monitoring/api/v3/sorting-and-filtering).
+     *     @type string $order_by
+     *           Optional. A comma-separated list of fields by which to sort the result.
+     *           Supports the same set of field references as the `filter` field. Entries
+     *           can be prefixed with a minus sign to sort by the field in descending order.
+     *           For more details, see [sorting and
+     *           filtering](https://cloud.google.com/monitoring/api/v3/sorting-and-filtering).
+     *     @type int $page_size
+     *           Optional. The maximum number of results to return in a single response.
+     *     @type string $page_token
+     *           Optional. If this field is not empty then it must contain the
+     *           `nextPageToken` value returned by a previous call to this method.  Using
+     *           this field causes the method to return more results from the previous
+     *           method call.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\AlertService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+     * alert policies are to be listed. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     * Note that this field names the parent container in which the alerting
+     * policies to be listed are stored. To retrieve a single alerting policy
+     * by name, use the
+     * [GetAlertPolicy][google.monitoring.v3.AlertPolicyService.GetAlertPolicy]
+     * operation, instead.
+     *
+     * Generated from protobuf field <code>string name = 4 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+     * alert policies are to be listed. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     * Note that this field names the parent container in which the alerting
+     * policies to be listed are stored. To retrieve a single alerting policy
+     * by name, use the
+     * [GetAlertPolicy][google.monitoring.v3.AlertPolicyService.GetAlertPolicy]
+     * operation, instead.
+     *
+     * Generated from protobuf field <code>string name = 4 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. If provided, this field specifies the criteria that must be met
+     * by alert policies to be included in the response.
+     * For more details, see [sorting and
+     * filtering](https://cloud.google.com/monitoring/api/v3/sorting-and-filtering).
+     *
+     * Generated from protobuf field <code>string filter = 5 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return string
+     */
+    public function getFilter()
+    {
+        return $this->filter;
+    }
+
+    /**
+     * Optional. If provided, this field specifies the criteria that must be met
+     * by alert policies to be included in the response.
+     * For more details, see [sorting and
+     * filtering](https://cloud.google.com/monitoring/api/v3/sorting-and-filtering).
+     *
+     * Generated from protobuf field <code>string filter = 5 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setFilter($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->filter = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. A comma-separated list of fields by which to sort the result.
+     * Supports the same set of field references as the `filter` field. Entries
+     * can be prefixed with a minus sign to sort by the field in descending order.
+     * For more details, see [sorting and
+     * filtering](https://cloud.google.com/monitoring/api/v3/sorting-and-filtering).
+     *
+     * Generated from protobuf field <code>string order_by = 6 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return string
+     */
+    public function getOrderBy()
+    {
+        return $this->order_by;
+    }
+
+    /**
+     * Optional. A comma-separated list of fields by which to sort the result.
+     * Supports the same set of field references as the `filter` field. Entries
+     * can be prefixed with a minus sign to sort by the field in descending order.
+     * For more details, see [sorting and
+     * filtering](https://cloud.google.com/monitoring/api/v3/sorting-and-filtering).
+     *
+     * Generated from protobuf field <code>string order_by = 6 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setOrderBy($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->order_by = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. The maximum number of results to return in a single response.
+     *
+     * Generated from protobuf field <code>int32 page_size = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return int
+     */
+    public function getPageSize()
+    {
+        return $this->page_size;
+    }
+
+    /**
+     * Optional. The maximum number of results to return in a single response.
+     *
+     * Generated from protobuf field <code>int32 page_size = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setPageSize($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->page_size = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. If this field is not empty then it must contain the
+     * `nextPageToken` value returned by a previous call to this method.  Using
+     * this field causes the method to return more results from the previous
+     * method call.
+     *
+     * Generated from protobuf field <code>string page_token = 3 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return string
+     */
+    public function getPageToken()
+    {
+        return $this->page_token;
+    }
+
+    /**
+     * Optional. If this field is not empty then it must contain the
+     * `nextPageToken` value returned by a previous call to this method.  Using
+     * this field causes the method to return more results from the previous
+     * method call.
+     *
+     * Generated from protobuf field <code>string page_token = 3 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->page_token = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListAlertPoliciesResponse.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListAlertPoliciesResponse.php
new file mode 100644
index 000000000000..45d31688ec1b
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListAlertPoliciesResponse.php
@@ -0,0 +1,147 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The protocol for the `ListAlertPolicies` response.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ListAlertPoliciesResponse</code>
+ */
+class ListAlertPoliciesResponse extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The returned alert policies.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.AlertPolicy alert_policies = 3;</code>
+     */
+    private $alert_policies;
+    /**
+     * If there might be more results than were returned, then this field is set
+     * to a non-empty value. To see the additional results,
+     * use that value as `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     */
+    protected $next_page_token = '';
+    /**
+     * The total number of alert policies in all pages. This number is only an
+     * estimate, and may change in subsequent pages. https://aip.dev/158
+     *
+     * Generated from protobuf field <code>int32 total_size = 4;</code>
+     */
+    protected $total_size = 0;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type array<\Google\Cloud\Monitoring\V3\AlertPolicy>|\Google\Protobuf\Internal\RepeatedField $alert_policies
+     *           The returned alert policies.
+     *     @type string $next_page_token
+     *           If there might be more results than were returned, then this field is set
+     *           to a non-empty value. To see the additional results,
+     *           use that value as `page_token` in the next call to this method.
+     *     @type int $total_size
+     *           The total number of alert policies in all pages. This number is only an
+     *           estimate, and may change in subsequent pages. https://aip.dev/158
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\AlertService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The returned alert policies.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.AlertPolicy alert_policies = 3;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getAlertPolicies()
+    {
+        return $this->alert_policies;
+    }
+
+    /**
+     * The returned alert policies.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.AlertPolicy alert_policies = 3;</code>
+     * @param array<\Google\Cloud\Monitoring\V3\AlertPolicy>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setAlertPolicies($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\AlertPolicy::class);
+        $this->alert_policies = $arr;
+
+        return $this;
+    }
+
+    /**
+     * If there might be more results than were returned, then this field is set
+     * to a non-empty value. To see the additional results,
+     * use that value as `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     * @return string
+     */
+    public function getNextPageToken()
+    {
+        return $this->next_page_token;
+    }
+
+    /**
+     * If there might be more results than were returned, then this field is set
+     * to a non-empty value. To see the additional results,
+     * use that value as `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setNextPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->next_page_token = $var;
+
+        return $this;
+    }
+
+    /**
+     * The total number of alert policies in all pages. This number is only an
+     * estimate, and may change in subsequent pages. https://aip.dev/158
+     *
+     * Generated from protobuf field <code>int32 total_size = 4;</code>
+     * @return int
+     */
+    public function getTotalSize()
+    {
+        return $this->total_size;
+    }
+
+    /**
+     * The total number of alert policies in all pages. This number is only an
+     * estimate, and may change in subsequent pages. https://aip.dev/158
+     *
+     * Generated from protobuf field <code>int32 total_size = 4;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setTotalSize($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->total_size = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListGroupMembersRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListGroupMembersRequest.php
new file mode 100644
index 000000000000..876c5364c1a1
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListGroupMembersRequest.php
@@ -0,0 +1,277 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/group_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `ListGroupMembers` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ListGroupMembersRequest</code>
+ */
+class ListGroupMembersRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The group whose members are listed. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     *
+     * Generated from protobuf field <code>string name = 7 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+    /**
+     * A positive number that is the maximum number of results to return.
+     *
+     * Generated from protobuf field <code>int32 page_size = 3;</code>
+     */
+    protected $page_size = 0;
+    /**
+     * If this field is not empty then it must contain the `next_page_token` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return additional results from the previous method call.
+     *
+     * Generated from protobuf field <code>string page_token = 4;</code>
+     */
+    protected $page_token = '';
+    /**
+     * An optional [list
+     * filter](https://cloud.google.com/monitoring/api/learn_more#filtering)
+     * describing the members to be returned.  The filter may reference the type,
+     * labels, and metadata of monitored resources that comprise the group. For
+     * example, to return only resources representing Compute Engine VM instances,
+     * use this filter:
+     *     `resource.type = "gce_instance"`
+     *
+     * Generated from protobuf field <code>string filter = 5;</code>
+     */
+    protected $filter = '';
+    /**
+     * An optional time interval for which results should be returned. Only
+     * members that were part of the group during the specified interval are
+     * included in the response.  If no interval is provided then the group
+     * membership over the last minute is returned.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TimeInterval interval = 6;</code>
+     */
+    protected $interval = null;
+
+    /**
+     * @param string $name Required. The group whose members are listed. The format is:
+     *
+     *                     projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     *                     Please see {@see GroupServiceClient::groupName()} for help formatting this field.
+     *
+     * @return \Google\Cloud\Monitoring\V3\ListGroupMembersRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name): self
+    {
+        return (new self())
+            ->setName($name);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The group whose members are listed. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     *     @type int $page_size
+     *           A positive number that is the maximum number of results to return.
+     *     @type string $page_token
+     *           If this field is not empty then it must contain the `next_page_token` value
+     *           returned by a previous call to this method.  Using this field causes the
+     *           method to return additional results from the previous method call.
+     *     @type string $filter
+     *           An optional [list
+     *           filter](https://cloud.google.com/monitoring/api/learn_more#filtering)
+     *           describing the members to be returned.  The filter may reference the type,
+     *           labels, and metadata of monitored resources that comprise the group. For
+     *           example, to return only resources representing Compute Engine VM instances,
+     *           use this filter:
+     *               `resource.type = "gce_instance"`
+     *     @type \Google\Cloud\Monitoring\V3\TimeInterval $interval
+     *           An optional time interval for which results should be returned. Only
+     *           members that were part of the group during the specified interval are
+     *           included in the response.  If no interval is provided then the group
+     *           membership over the last minute is returned.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\GroupService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The group whose members are listed. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     *
+     * Generated from protobuf field <code>string name = 7 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The group whose members are listed. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     *
+     * Generated from protobuf field <code>string name = 7 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * A positive number that is the maximum number of results to return.
+     *
+     * Generated from protobuf field <code>int32 page_size = 3;</code>
+     * @return int
+     */
+    public function getPageSize()
+    {
+        return $this->page_size;
+    }
+
+    /**
+     * A positive number that is the maximum number of results to return.
+     *
+     * Generated from protobuf field <code>int32 page_size = 3;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setPageSize($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->page_size = $var;
+
+        return $this;
+    }
+
+    /**
+     * If this field is not empty then it must contain the `next_page_token` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return additional results from the previous method call.
+     *
+     * Generated from protobuf field <code>string page_token = 4;</code>
+     * @return string
+     */
+    public function getPageToken()
+    {
+        return $this->page_token;
+    }
+
+    /**
+     * If this field is not empty then it must contain the `next_page_token` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return additional results from the previous method call.
+     *
+     * Generated from protobuf field <code>string page_token = 4;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->page_token = $var;
+
+        return $this;
+    }
+
+    /**
+     * An optional [list
+     * filter](https://cloud.google.com/monitoring/api/learn_more#filtering)
+     * describing the members to be returned.  The filter may reference the type,
+     * labels, and metadata of monitored resources that comprise the group. For
+     * example, to return only resources representing Compute Engine VM instances,
+     * use this filter:
+     *     `resource.type = "gce_instance"`
+     *
+     * Generated from protobuf field <code>string filter = 5;</code>
+     * @return string
+     */
+    public function getFilter()
+    {
+        return $this->filter;
+    }
+
+    /**
+     * An optional [list
+     * filter](https://cloud.google.com/monitoring/api/learn_more#filtering)
+     * describing the members to be returned.  The filter may reference the type,
+     * labels, and metadata of monitored resources that comprise the group. For
+     * example, to return only resources representing Compute Engine VM instances,
+     * use this filter:
+     *     `resource.type = "gce_instance"`
+     *
+     * Generated from protobuf field <code>string filter = 5;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setFilter($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->filter = $var;
+
+        return $this;
+    }
+
+    /**
+     * An optional time interval for which results should be returned. Only
+     * members that were part of the group during the specified interval are
+     * included in the response.  If no interval is provided then the group
+     * membership over the last minute is returned.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TimeInterval interval = 6;</code>
+     * @return \Google\Cloud\Monitoring\V3\TimeInterval|null
+     */
+    public function getInterval()
+    {
+        return $this->interval;
+    }
+
+    public function hasInterval()
+    {
+        return isset($this->interval);
+    }
+
+    public function clearInterval()
+    {
+        unset($this->interval);
+    }
+
+    /**
+     * An optional time interval for which results should be returned. Only
+     * members that were part of the group during the specified interval are
+     * included in the response.  If no interval is provided then the group
+     * membership over the last minute is returned.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TimeInterval interval = 6;</code>
+     * @param \Google\Cloud\Monitoring\V3\TimeInterval $var
+     * @return $this
+     */
+    public function setInterval($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\TimeInterval::class);
+        $this->interval = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListGroupMembersResponse.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListGroupMembersResponse.php
new file mode 100644
index 000000000000..8cfc0e8fcd34
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListGroupMembersResponse.php
@@ -0,0 +1,143 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/group_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `ListGroupMembers` response.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ListGroupMembersResponse</code>
+ */
+class ListGroupMembersResponse extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * A set of monitored resources in the group.
+     *
+     * Generated from protobuf field <code>repeated .google.api.MonitoredResource members = 1;</code>
+     */
+    private $members;
+    /**
+     * If there are more results than have been returned, then this field is
+     * set to a non-empty value.  To see the additional results, use that value as
+     * `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     */
+    protected $next_page_token = '';
+    /**
+     * The total number of elements matching this request.
+     *
+     * Generated from protobuf field <code>int32 total_size = 3;</code>
+     */
+    protected $total_size = 0;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type array<\Google\Api\MonitoredResource>|\Google\Protobuf\Internal\RepeatedField $members
+     *           A set of monitored resources in the group.
+     *     @type string $next_page_token
+     *           If there are more results than have been returned, then this field is
+     *           set to a non-empty value.  To see the additional results, use that value as
+     *           `page_token` in the next call to this method.
+     *     @type int $total_size
+     *           The total number of elements matching this request.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\GroupService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * A set of monitored resources in the group.
+     *
+     * Generated from protobuf field <code>repeated .google.api.MonitoredResource members = 1;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getMembers()
+    {
+        return $this->members;
+    }
+
+    /**
+     * A set of monitored resources in the group.
+     *
+     * Generated from protobuf field <code>repeated .google.api.MonitoredResource members = 1;</code>
+     * @param array<\Google\Api\MonitoredResource>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setMembers($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Api\MonitoredResource::class);
+        $this->members = $arr;
+
+        return $this;
+    }
+
+    /**
+     * If there are more results than have been returned, then this field is
+     * set to a non-empty value.  To see the additional results, use that value as
+     * `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     * @return string
+     */
+    public function getNextPageToken()
+    {
+        return $this->next_page_token;
+    }
+
+    /**
+     * If there are more results than have been returned, then this field is
+     * set to a non-empty value.  To see the additional results, use that value as
+     * `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setNextPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->next_page_token = $var;
+
+        return $this;
+    }
+
+    /**
+     * The total number of elements matching this request.
+     *
+     * Generated from protobuf field <code>int32 total_size = 3;</code>
+     * @return int
+     */
+    public function getTotalSize()
+    {
+        return $this->total_size;
+    }
+
+    /**
+     * The total number of elements matching this request.
+     *
+     * Generated from protobuf field <code>int32 total_size = 3;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setTotalSize($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->total_size = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListGroupsRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListGroupsRequest.php
new file mode 100644
index 000000000000..7203ea371000
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListGroupsRequest.php
@@ -0,0 +1,316 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/group_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `ListGroup` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ListGroupsRequest</code>
+ */
+class ListGroupsRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+     * groups are to be listed. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string name = 7 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+    /**
+     * A positive number that is the maximum number of results to return.
+     *
+     * Generated from protobuf field <code>int32 page_size = 5;</code>
+     */
+    protected $page_size = 0;
+    /**
+     * If this field is not empty then it must contain the `next_page_token` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return additional results from the previous method call.
+     *
+     * Generated from protobuf field <code>string page_token = 6;</code>
+     */
+    protected $page_token = '';
+    protected $filter;
+
+    /**
+     * @param string $name Required. The
+     *                     [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+     *                     groups are to be listed. The format is:
+     *
+     *                     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * @return \Google\Cloud\Monitoring\V3\ListGroupsRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name): self
+    {
+        return (new self())
+            ->setName($name);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The
+     *           [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+     *           groups are to be listed. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]
+     *     @type string $children_of_group
+     *           A group name. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     *           Returns groups whose `parent_name` field contains the group
+     *           name.  If no groups have this parent, the results are empty.
+     *     @type string $ancestors_of_group
+     *           A group name. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     *           Returns groups that are ancestors of the specified group.
+     *           The groups are returned in order, starting with the immediate parent and
+     *           ending with the most distant ancestor.  If the specified group has no
+     *           immediate parent, the results are empty.
+     *     @type string $descendants_of_group
+     *           A group name. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     *           Returns the descendants of the specified group.  This is a superset of
+     *           the results returned by the `children_of_group` filter, and includes
+     *           children-of-children, and so forth.
+     *     @type int $page_size
+     *           A positive number that is the maximum number of results to return.
+     *     @type string $page_token
+     *           If this field is not empty then it must contain the `next_page_token` value
+     *           returned by a previous call to this method.  Using this field causes the
+     *           method to return additional results from the previous method call.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\GroupService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+     * groups are to be listed. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string name = 7 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+     * groups are to be listed. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string name = 7 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * A group name. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     * Returns groups whose `parent_name` field contains the group
+     * name.  If no groups have this parent, the results are empty.
+     *
+     * Generated from protobuf field <code>string children_of_group = 2 [(.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getChildrenOfGroup()
+    {
+        return $this->readOneof(2);
+    }
+
+    public function hasChildrenOfGroup()
+    {
+        return $this->hasOneof(2);
+    }
+
+    /**
+     * A group name. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     * Returns groups whose `parent_name` field contains the group
+     * name.  If no groups have this parent, the results are empty.
+     *
+     * Generated from protobuf field <code>string children_of_group = 2 [(.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setChildrenOfGroup($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->writeOneof(2, $var);
+
+        return $this;
+    }
+
+    /**
+     * A group name. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     * Returns groups that are ancestors of the specified group.
+     * The groups are returned in order, starting with the immediate parent and
+     * ending with the most distant ancestor.  If the specified group has no
+     * immediate parent, the results are empty.
+     *
+     * Generated from protobuf field <code>string ancestors_of_group = 3 [(.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getAncestorsOfGroup()
+    {
+        return $this->readOneof(3);
+    }
+
+    public function hasAncestorsOfGroup()
+    {
+        return $this->hasOneof(3);
+    }
+
+    /**
+     * A group name. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     * Returns groups that are ancestors of the specified group.
+     * The groups are returned in order, starting with the immediate parent and
+     * ending with the most distant ancestor.  If the specified group has no
+     * immediate parent, the results are empty.
+     *
+     * Generated from protobuf field <code>string ancestors_of_group = 3 [(.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setAncestorsOfGroup($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->writeOneof(3, $var);
+
+        return $this;
+    }
+
+    /**
+     * A group name. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     * Returns the descendants of the specified group.  This is a superset of
+     * the results returned by the `children_of_group` filter, and includes
+     * children-of-children, and so forth.
+     *
+     * Generated from protobuf field <code>string descendants_of_group = 4 [(.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getDescendantsOfGroup()
+    {
+        return $this->readOneof(4);
+    }
+
+    public function hasDescendantsOfGroup()
+    {
+        return $this->hasOneof(4);
+    }
+
+    /**
+     * A group name. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     * Returns the descendants of the specified group.  This is a superset of
+     * the results returned by the `children_of_group` filter, and includes
+     * children-of-children, and so forth.
+     *
+     * Generated from protobuf field <code>string descendants_of_group = 4 [(.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setDescendantsOfGroup($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->writeOneof(4, $var);
+
+        return $this;
+    }
+
+    /**
+     * A positive number that is the maximum number of results to return.
+     *
+     * Generated from protobuf field <code>int32 page_size = 5;</code>
+     * @return int
+     */
+    public function getPageSize()
+    {
+        return $this->page_size;
+    }
+
+    /**
+     * A positive number that is the maximum number of results to return.
+     *
+     * Generated from protobuf field <code>int32 page_size = 5;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setPageSize($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->page_size = $var;
+
+        return $this;
+    }
+
+    /**
+     * If this field is not empty then it must contain the `next_page_token` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return additional results from the previous method call.
+     *
+     * Generated from protobuf field <code>string page_token = 6;</code>
+     * @return string
+     */
+    public function getPageToken()
+    {
+        return $this->page_token;
+    }
+
+    /**
+     * If this field is not empty then it must contain the `next_page_token` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return additional results from the previous method call.
+     *
+     * Generated from protobuf field <code>string page_token = 6;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->page_token = $var;
+
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getFilter()
+    {
+        return $this->whichOneof("filter");
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListGroupsResponse.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListGroupsResponse.php
new file mode 100644
index 000000000000..98e3257f20aa
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListGroupsResponse.php
@@ -0,0 +1,109 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/group_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `ListGroups` response.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ListGroupsResponse</code>
+ */
+class ListGroupsResponse extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The groups that match the specified filters.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.Group group = 1;</code>
+     */
+    private $group;
+    /**
+     * If there are more results than have been returned, then this field is set
+     * to a non-empty value.  To see the additional results,
+     * use that value as `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     */
+    protected $next_page_token = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type array<\Google\Cloud\Monitoring\V3\Group>|\Google\Protobuf\Internal\RepeatedField $group
+     *           The groups that match the specified filters.
+     *     @type string $next_page_token
+     *           If there are more results than have been returned, then this field is set
+     *           to a non-empty value.  To see the additional results,
+     *           use that value as `page_token` in the next call to this method.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\GroupService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The groups that match the specified filters.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.Group group = 1;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getGroup()
+    {
+        return $this->group;
+    }
+
+    /**
+     * The groups that match the specified filters.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.Group group = 1;</code>
+     * @param array<\Google\Cloud\Monitoring\V3\Group>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setGroup($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\Group::class);
+        $this->group = $arr;
+
+        return $this;
+    }
+
+    /**
+     * If there are more results than have been returned, then this field is set
+     * to a non-empty value.  To see the additional results,
+     * use that value as `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     * @return string
+     */
+    public function getNextPageToken()
+    {
+        return $this->next_page_token;
+    }
+
+    /**
+     * If there are more results than have been returned, then this field is set
+     * to a non-empty value.  To see the additional results,
+     * use that value as `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setNextPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->next_page_token = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListMetricDescriptorsRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListMetricDescriptorsRequest.php
new file mode 100644
index 000000000000..d719fdc45ddd
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListMetricDescriptorsRequest.php
@@ -0,0 +1,242 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `ListMetricDescriptors` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ListMetricDescriptorsRequest</code>
+ */
+class ListMetricDescriptorsRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     * to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string name = 5 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+    /**
+     * Optional. If this field is empty, all custom and
+     * system-defined metric descriptors are returned.
+     * Otherwise, the [filter](https://cloud.google.com/monitoring/api/v3/filters)
+     * specifies which metric descriptors are to be
+     * returned. For example, the following filter matches all
+     * [custom metrics](https://cloud.google.com/monitoring/custom-metrics):
+     *     metric.type = starts_with("custom.googleapis.com/")
+     *
+     * Generated from protobuf field <code>string filter = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    protected $filter = '';
+    /**
+     * Optional. A positive number that is the maximum number of results to
+     * return. The default and maximum value is 10,000. If a page_size <= 0 or >
+     * 10,000 is submitted, will instead return a maximum of 10,000 results.
+     *
+     * Generated from protobuf field <code>int32 page_size = 3 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    protected $page_size = 0;
+    /**
+     * Optional. If this field is not empty then it must contain the
+     * `nextPageToken` value returned by a previous call to this method.  Using
+     * this field causes the method to return additional results from the previous
+     * method call.
+     *
+     * Generated from protobuf field <code>string page_token = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    protected $page_token = '';
+
+    /**
+     * @param string $name Required. The
+     *                     [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     *                     to execute the request. The format is:
+     *
+     *                     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * @return \Google\Cloud\Monitoring\V3\ListMetricDescriptorsRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name): self
+    {
+        return (new self())
+            ->setName($name);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The
+     *           [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     *           to execute the request. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]
+     *     @type string $filter
+     *           Optional. If this field is empty, all custom and
+     *           system-defined metric descriptors are returned.
+     *           Otherwise, the [filter](https://cloud.google.com/monitoring/api/v3/filters)
+     *           specifies which metric descriptors are to be
+     *           returned. For example, the following filter matches all
+     *           [custom metrics](https://cloud.google.com/monitoring/custom-metrics):
+     *               metric.type = starts_with("custom.googleapis.com/")
+     *     @type int $page_size
+     *           Optional. A positive number that is the maximum number of results to
+     *           return. The default and maximum value is 10,000. If a page_size <= 0 or >
+     *           10,000 is submitted, will instead return a maximum of 10,000 results.
+     *     @type string $page_token
+     *           Optional. If this field is not empty then it must contain the
+     *           `nextPageToken` value returned by a previous call to this method.  Using
+     *           this field causes the method to return additional results from the previous
+     *           method call.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\MetricService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     * to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string name = 5 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     * to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string name = 5 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. If this field is empty, all custom and
+     * system-defined metric descriptors are returned.
+     * Otherwise, the [filter](https://cloud.google.com/monitoring/api/v3/filters)
+     * specifies which metric descriptors are to be
+     * returned. For example, the following filter matches all
+     * [custom metrics](https://cloud.google.com/monitoring/custom-metrics):
+     *     metric.type = starts_with("custom.googleapis.com/")
+     *
+     * Generated from protobuf field <code>string filter = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return string
+     */
+    public function getFilter()
+    {
+        return $this->filter;
+    }
+
+    /**
+     * Optional. If this field is empty, all custom and
+     * system-defined metric descriptors are returned.
+     * Otherwise, the [filter](https://cloud.google.com/monitoring/api/v3/filters)
+     * specifies which metric descriptors are to be
+     * returned. For example, the following filter matches all
+     * [custom metrics](https://cloud.google.com/monitoring/custom-metrics):
+     *     metric.type = starts_with("custom.googleapis.com/")
+     *
+     * Generated from protobuf field <code>string filter = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setFilter($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->filter = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. A positive number that is the maximum number of results to
+     * return. The default and maximum value is 10,000. If a page_size <= 0 or >
+     * 10,000 is submitted, will instead return a maximum of 10,000 results.
+     *
+     * Generated from protobuf field <code>int32 page_size = 3 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return int
+     */
+    public function getPageSize()
+    {
+        return $this->page_size;
+    }
+
+    /**
+     * Optional. A positive number that is the maximum number of results to
+     * return. The default and maximum value is 10,000. If a page_size <= 0 or >
+     * 10,000 is submitted, will instead return a maximum of 10,000 results.
+     *
+     * Generated from protobuf field <code>int32 page_size = 3 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setPageSize($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->page_size = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. If this field is not empty then it must contain the
+     * `nextPageToken` value returned by a previous call to this method.  Using
+     * this field causes the method to return additional results from the previous
+     * method call.
+     *
+     * Generated from protobuf field <code>string page_token = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return string
+     */
+    public function getPageToken()
+    {
+        return $this->page_token;
+    }
+
+    /**
+     * Optional. If this field is not empty then it must contain the
+     * `nextPageToken` value returned by a previous call to this method.  Using
+     * this field causes the method to return additional results from the previous
+     * method call.
+     *
+     * Generated from protobuf field <code>string page_token = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->page_token = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListMetricDescriptorsResponse.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListMetricDescriptorsResponse.php
new file mode 100644
index 000000000000..4ea2039e212c
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListMetricDescriptorsResponse.php
@@ -0,0 +1,113 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `ListMetricDescriptors` response.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ListMetricDescriptorsResponse</code>
+ */
+class ListMetricDescriptorsResponse extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The metric descriptors that are available to the project
+     * and that match the value of `filter`, if present.
+     *
+     * Generated from protobuf field <code>repeated .google.api.MetricDescriptor metric_descriptors = 1;</code>
+     */
+    private $metric_descriptors;
+    /**
+     * If there are more results than have been returned, then this field is set
+     * to a non-empty value.  To see the additional results,
+     * use that value as `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     */
+    protected $next_page_token = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type array<\Google\Api\MetricDescriptor>|\Google\Protobuf\Internal\RepeatedField $metric_descriptors
+     *           The metric descriptors that are available to the project
+     *           and that match the value of `filter`, if present.
+     *     @type string $next_page_token
+     *           If there are more results than have been returned, then this field is set
+     *           to a non-empty value.  To see the additional results,
+     *           use that value as `page_token` in the next call to this method.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\MetricService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The metric descriptors that are available to the project
+     * and that match the value of `filter`, if present.
+     *
+     * Generated from protobuf field <code>repeated .google.api.MetricDescriptor metric_descriptors = 1;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getMetricDescriptors()
+    {
+        return $this->metric_descriptors;
+    }
+
+    /**
+     * The metric descriptors that are available to the project
+     * and that match the value of `filter`, if present.
+     *
+     * Generated from protobuf field <code>repeated .google.api.MetricDescriptor metric_descriptors = 1;</code>
+     * @param array<\Google\Api\MetricDescriptor>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setMetricDescriptors($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Api\MetricDescriptor::class);
+        $this->metric_descriptors = $arr;
+
+        return $this;
+    }
+
+    /**
+     * If there are more results than have been returned, then this field is set
+     * to a non-empty value.  To see the additional results,
+     * use that value as `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     * @return string
+     */
+    public function getNextPageToken()
+    {
+        return $this->next_page_token;
+    }
+
+    /**
+     * If there are more results than have been returned, then this field is set
+     * to a non-empty value.  To see the additional results,
+     * use that value as `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setNextPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->next_page_token = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListMonitoredResourceDescriptorsRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListMonitoredResourceDescriptorsRequest.php
new file mode 100644
index 000000000000..14696bd981c1
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListMonitoredResourceDescriptorsRequest.php
@@ -0,0 +1,222 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `ListMonitoredResourceDescriptors` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ListMonitoredResourceDescriptorsRequest</code>
+ */
+class ListMonitoredResourceDescriptorsRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     * to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string name = 5 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+    /**
+     * An optional [filter](https://cloud.google.com/monitoring/api/v3/filters)
+     * describing the descriptors to be returned.  The filter can reference the
+     * descriptor's type and labels. For example, the following filter returns
+     * only Google Compute Engine descriptors that have an `id` label:
+     *     resource.type = starts_with("gce_") AND resource.label:id
+     *
+     * Generated from protobuf field <code>string filter = 2;</code>
+     */
+    protected $filter = '';
+    /**
+     * A positive number that is the maximum number of results to return.
+     *
+     * Generated from protobuf field <code>int32 page_size = 3;</code>
+     */
+    protected $page_size = 0;
+    /**
+     * If this field is not empty then it must contain the `nextPageToken` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return additional results from the previous method call.
+     *
+     * Generated from protobuf field <code>string page_token = 4;</code>
+     */
+    protected $page_token = '';
+
+    /**
+     * @param string $name Required. The
+     *                     [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     *                     to execute the request. The format is:
+     *
+     *                     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * @return \Google\Cloud\Monitoring\V3\ListMonitoredResourceDescriptorsRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name): self
+    {
+        return (new self())
+            ->setName($name);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The
+     *           [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     *           to execute the request. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]
+     *     @type string $filter
+     *           An optional [filter](https://cloud.google.com/monitoring/api/v3/filters)
+     *           describing the descriptors to be returned.  The filter can reference the
+     *           descriptor's type and labels. For example, the following filter returns
+     *           only Google Compute Engine descriptors that have an `id` label:
+     *               resource.type = starts_with("gce_") AND resource.label:id
+     *     @type int $page_size
+     *           A positive number that is the maximum number of results to return.
+     *     @type string $page_token
+     *           If this field is not empty then it must contain the `nextPageToken` value
+     *           returned by a previous call to this method.  Using this field causes the
+     *           method to return additional results from the previous method call.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\MetricService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     * to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string name = 5 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     * to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string name = 5 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * An optional [filter](https://cloud.google.com/monitoring/api/v3/filters)
+     * describing the descriptors to be returned.  The filter can reference the
+     * descriptor's type and labels. For example, the following filter returns
+     * only Google Compute Engine descriptors that have an `id` label:
+     *     resource.type = starts_with("gce_") AND resource.label:id
+     *
+     * Generated from protobuf field <code>string filter = 2;</code>
+     * @return string
+     */
+    public function getFilter()
+    {
+        return $this->filter;
+    }
+
+    /**
+     * An optional [filter](https://cloud.google.com/monitoring/api/v3/filters)
+     * describing the descriptors to be returned.  The filter can reference the
+     * descriptor's type and labels. For example, the following filter returns
+     * only Google Compute Engine descriptors that have an `id` label:
+     *     resource.type = starts_with("gce_") AND resource.label:id
+     *
+     * Generated from protobuf field <code>string filter = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setFilter($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->filter = $var;
+
+        return $this;
+    }
+
+    /**
+     * A positive number that is the maximum number of results to return.
+     *
+     * Generated from protobuf field <code>int32 page_size = 3;</code>
+     * @return int
+     */
+    public function getPageSize()
+    {
+        return $this->page_size;
+    }
+
+    /**
+     * A positive number that is the maximum number of results to return.
+     *
+     * Generated from protobuf field <code>int32 page_size = 3;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setPageSize($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->page_size = $var;
+
+        return $this;
+    }
+
+    /**
+     * If this field is not empty then it must contain the `nextPageToken` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return additional results from the previous method call.
+     *
+     * Generated from protobuf field <code>string page_token = 4;</code>
+     * @return string
+     */
+    public function getPageToken()
+    {
+        return $this->page_token;
+    }
+
+    /**
+     * If this field is not empty then it must contain the `nextPageToken` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return additional results from the previous method call.
+     *
+     * Generated from protobuf field <code>string page_token = 4;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->page_token = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListMonitoredResourceDescriptorsResponse.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListMonitoredResourceDescriptorsResponse.php
new file mode 100644
index 000000000000..07992037c864
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListMonitoredResourceDescriptorsResponse.php
@@ -0,0 +1,113 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `ListMonitoredResourceDescriptors` response.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ListMonitoredResourceDescriptorsResponse</code>
+ */
+class ListMonitoredResourceDescriptorsResponse extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The monitored resource descriptors that are available to this project
+     * and that match `filter`, if present.
+     *
+     * Generated from protobuf field <code>repeated .google.api.MonitoredResourceDescriptor resource_descriptors = 1;</code>
+     */
+    private $resource_descriptors;
+    /**
+     * If there are more results than have been returned, then this field is set
+     * to a non-empty value.  To see the additional results,
+     * use that value as `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     */
+    protected $next_page_token = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type array<\Google\Api\MonitoredResourceDescriptor>|\Google\Protobuf\Internal\RepeatedField $resource_descriptors
+     *           The monitored resource descriptors that are available to this project
+     *           and that match `filter`, if present.
+     *     @type string $next_page_token
+     *           If there are more results than have been returned, then this field is set
+     *           to a non-empty value.  To see the additional results,
+     *           use that value as `page_token` in the next call to this method.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\MetricService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The monitored resource descriptors that are available to this project
+     * and that match `filter`, if present.
+     *
+     * Generated from protobuf field <code>repeated .google.api.MonitoredResourceDescriptor resource_descriptors = 1;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getResourceDescriptors()
+    {
+        return $this->resource_descriptors;
+    }
+
+    /**
+     * The monitored resource descriptors that are available to this project
+     * and that match `filter`, if present.
+     *
+     * Generated from protobuf field <code>repeated .google.api.MonitoredResourceDescriptor resource_descriptors = 1;</code>
+     * @param array<\Google\Api\MonitoredResourceDescriptor>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setResourceDescriptors($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Api\MonitoredResourceDescriptor::class);
+        $this->resource_descriptors = $arr;
+
+        return $this;
+    }
+
+    /**
+     * If there are more results than have been returned, then this field is set
+     * to a non-empty value.  To see the additional results,
+     * use that value as `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     * @return string
+     */
+    public function getNextPageToken()
+    {
+        return $this->next_page_token;
+    }
+
+    /**
+     * If there are more results than have been returned, then this field is set
+     * to a non-empty value.  To see the additional results,
+     * use that value as `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setNextPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->next_page_token = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListNotificationChannelDescriptorsRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListNotificationChannelDescriptorsRequest.php
new file mode 100644
index 000000000000..ef7d9522e6f2
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListNotificationChannelDescriptorsRequest.php
@@ -0,0 +1,206 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/notification_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `ListNotificationChannelDescriptors` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ListNotificationChannelDescriptorsRequest</code>
+ */
+class ListNotificationChannelDescriptorsRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The REST resource name of the parent from which to retrieve
+     * the notification channel descriptors. The expected syntax is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     * Note that this
+     * [names](https://cloud.google.com/monitoring/api/v3#project_name) the parent
+     * container in which to look for the descriptors; to retrieve a single
+     * descriptor by name, use the
+     * [GetNotificationChannelDescriptor][google.monitoring.v3.NotificationChannelService.GetNotificationChannelDescriptor]
+     * operation, instead.
+     *
+     * Generated from protobuf field <code>string name = 4 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+    /**
+     * The maximum number of results to return in a single response. If
+     * not set to a positive number, a reasonable value will be chosen by the
+     * service.
+     *
+     * Generated from protobuf field <code>int32 page_size = 2;</code>
+     */
+    protected $page_size = 0;
+    /**
+     * If non-empty, `page_token` must contain a value returned as the
+     * `next_page_token` in a previous response to request the next set
+     * of results.
+     *
+     * Generated from protobuf field <code>string page_token = 3;</code>
+     */
+    protected $page_token = '';
+
+    /**
+     * @param string $name Required. The REST resource name of the parent from which to retrieve
+     *                     the notification channel descriptors. The expected syntax is:
+     *
+     *                     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     *                     Note that this
+     *                     [names](https://cloud.google.com/monitoring/api/v3#project_name) the parent
+     *                     container in which to look for the descriptors; to retrieve a single
+     *                     descriptor by name, use the
+     *                     [GetNotificationChannelDescriptor][google.monitoring.v3.NotificationChannelService.GetNotificationChannelDescriptor]
+     *                     operation, instead.
+     *
+     * @return \Google\Cloud\Monitoring\V3\ListNotificationChannelDescriptorsRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name): self
+    {
+        return (new self())
+            ->setName($name);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The REST resource name of the parent from which to retrieve
+     *           the notification channel descriptors. The expected syntax is:
+     *               projects/[PROJECT_ID_OR_NUMBER]
+     *           Note that this
+     *           [names](https://cloud.google.com/monitoring/api/v3#project_name) the parent
+     *           container in which to look for the descriptors; to retrieve a single
+     *           descriptor by name, use the
+     *           [GetNotificationChannelDescriptor][google.monitoring.v3.NotificationChannelService.GetNotificationChannelDescriptor]
+     *           operation, instead.
+     *     @type int $page_size
+     *           The maximum number of results to return in a single response. If
+     *           not set to a positive number, a reasonable value will be chosen by the
+     *           service.
+     *     @type string $page_token
+     *           If non-empty, `page_token` must contain a value returned as the
+     *           `next_page_token` in a previous response to request the next set
+     *           of results.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\NotificationService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The REST resource name of the parent from which to retrieve
+     * the notification channel descriptors. The expected syntax is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     * Note that this
+     * [names](https://cloud.google.com/monitoring/api/v3#project_name) the parent
+     * container in which to look for the descriptors; to retrieve a single
+     * descriptor by name, use the
+     * [GetNotificationChannelDescriptor][google.monitoring.v3.NotificationChannelService.GetNotificationChannelDescriptor]
+     * operation, instead.
+     *
+     * Generated from protobuf field <code>string name = 4 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The REST resource name of the parent from which to retrieve
+     * the notification channel descriptors. The expected syntax is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     * Note that this
+     * [names](https://cloud.google.com/monitoring/api/v3#project_name) the parent
+     * container in which to look for the descriptors; to retrieve a single
+     * descriptor by name, use the
+     * [GetNotificationChannelDescriptor][google.monitoring.v3.NotificationChannelService.GetNotificationChannelDescriptor]
+     * operation, instead.
+     *
+     * Generated from protobuf field <code>string name = 4 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * The maximum number of results to return in a single response. If
+     * not set to a positive number, a reasonable value will be chosen by the
+     * service.
+     *
+     * Generated from protobuf field <code>int32 page_size = 2;</code>
+     * @return int
+     */
+    public function getPageSize()
+    {
+        return $this->page_size;
+    }
+
+    /**
+     * The maximum number of results to return in a single response. If
+     * not set to a positive number, a reasonable value will be chosen by the
+     * service.
+     *
+     * Generated from protobuf field <code>int32 page_size = 2;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setPageSize($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->page_size = $var;
+
+        return $this;
+    }
+
+    /**
+     * If non-empty, `page_token` must contain a value returned as the
+     * `next_page_token` in a previous response to request the next set
+     * of results.
+     *
+     * Generated from protobuf field <code>string page_token = 3;</code>
+     * @return string
+     */
+    public function getPageToken()
+    {
+        return $this->page_token;
+    }
+
+    /**
+     * If non-empty, `page_token` must contain a value returned as the
+     * `next_page_token` in a previous response to request the next set
+     * of results.
+     *
+     * Generated from protobuf field <code>string page_token = 3;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->page_token = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListNotificationChannelDescriptorsResponse.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListNotificationChannelDescriptorsResponse.php
new file mode 100644
index 000000000000..93034ae15999
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListNotificationChannelDescriptorsResponse.php
@@ -0,0 +1,117 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/notification_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `ListNotificationChannelDescriptors` response.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ListNotificationChannelDescriptorsResponse</code>
+ */
+class ListNotificationChannelDescriptorsResponse extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The monitored resource descriptors supported for the specified
+     * project, optionally filtered.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.NotificationChannelDescriptor channel_descriptors = 1;</code>
+     */
+    private $channel_descriptors;
+    /**
+     * If not empty, indicates that there may be more results that match
+     * the request. Use the value in the `page_token` field in a
+     * subsequent request to fetch the next set of results. If empty,
+     * all results have been returned.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     */
+    protected $next_page_token = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type array<\Google\Cloud\Monitoring\V3\NotificationChannelDescriptor>|\Google\Protobuf\Internal\RepeatedField $channel_descriptors
+     *           The monitored resource descriptors supported for the specified
+     *           project, optionally filtered.
+     *     @type string $next_page_token
+     *           If not empty, indicates that there may be more results that match
+     *           the request. Use the value in the `page_token` field in a
+     *           subsequent request to fetch the next set of results. If empty,
+     *           all results have been returned.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\NotificationService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The monitored resource descriptors supported for the specified
+     * project, optionally filtered.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.NotificationChannelDescriptor channel_descriptors = 1;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getChannelDescriptors()
+    {
+        return $this->channel_descriptors;
+    }
+
+    /**
+     * The monitored resource descriptors supported for the specified
+     * project, optionally filtered.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.NotificationChannelDescriptor channel_descriptors = 1;</code>
+     * @param array<\Google\Cloud\Monitoring\V3\NotificationChannelDescriptor>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setChannelDescriptors($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\NotificationChannelDescriptor::class);
+        $this->channel_descriptors = $arr;
+
+        return $this;
+    }
+
+    /**
+     * If not empty, indicates that there may be more results that match
+     * the request. Use the value in the `page_token` field in a
+     * subsequent request to fetch the next set of results. If empty,
+     * all results have been returned.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     * @return string
+     */
+    public function getNextPageToken()
+    {
+        return $this->next_page_token;
+    }
+
+    /**
+     * If not empty, indicates that there may be more results that match
+     * the request. Use the value in the `page_token` field in a
+     * subsequent request to fetch the next set of results. If empty,
+     * all results have been returned.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setNextPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->next_page_token = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListNotificationChannelsRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListNotificationChannelsRequest.php
new file mode 100644
index 000000000000..ec2c80372ea3
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListNotificationChannelsRequest.php
@@ -0,0 +1,307 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/notification_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `ListNotificationChannels` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ListNotificationChannelsRequest</code>
+ */
+class ListNotificationChannelsRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     * to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     * This names the container
+     * in which to look for the notification channels; it does not name a
+     * specific channel. To query a specific channel by REST resource name, use
+     * the
+     * [`GetNotificationChannel`][google.monitoring.v3.NotificationChannelService.GetNotificationChannel]
+     * operation.
+     *
+     * Generated from protobuf field <code>string name = 5 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+    /**
+     * Optional. If provided, this field specifies the criteria that must be met
+     * by notification channels to be included in the response.
+     * For more details, see [sorting and
+     * filtering](https://cloud.google.com/monitoring/api/v3/sorting-and-filtering).
+     *
+     * Generated from protobuf field <code>string filter = 6 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    protected $filter = '';
+    /**
+     * Optional. A comma-separated list of fields by which to sort the result.
+     * Supports the same set of fields as in `filter`. Entries can be prefixed
+     * with a minus sign to sort in descending rather than ascending order.
+     * For more details, see [sorting and
+     * filtering](https://cloud.google.com/monitoring/api/v3/sorting-and-filtering).
+     *
+     * Generated from protobuf field <code>string order_by = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    protected $order_by = '';
+    /**
+     * Optional. The maximum number of results to return in a single response. If
+     * not set to a positive number, a reasonable value will be chosen by the
+     * service.
+     *
+     * Generated from protobuf field <code>int32 page_size = 3 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    protected $page_size = 0;
+    /**
+     * Optional. If non-empty, `page_token` must contain a value returned as the
+     * `next_page_token` in a previous response to request the next set
+     * of results.
+     *
+     * Generated from protobuf field <code>string page_token = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    protected $page_token = '';
+
+    /**
+     * @param string $name Required. The
+     *                     [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     *                     to execute the request. The format is:
+     *
+     *                     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     *                     This names the container
+     *                     in which to look for the notification channels; it does not name a
+     *                     specific channel. To query a specific channel by REST resource name, use
+     *                     the
+     *                     [`GetNotificationChannel`][google.monitoring.v3.NotificationChannelService.GetNotificationChannel]
+     *                     operation.
+     *
+     * @return \Google\Cloud\Monitoring\V3\ListNotificationChannelsRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name): self
+    {
+        return (new self())
+            ->setName($name);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The
+     *           [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     *           to execute the request. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]
+     *           This names the container
+     *           in which to look for the notification channels; it does not name a
+     *           specific channel. To query a specific channel by REST resource name, use
+     *           the
+     *           [`GetNotificationChannel`][google.monitoring.v3.NotificationChannelService.GetNotificationChannel]
+     *           operation.
+     *     @type string $filter
+     *           Optional. If provided, this field specifies the criteria that must be met
+     *           by notification channels to be included in the response.
+     *           For more details, see [sorting and
+     *           filtering](https://cloud.google.com/monitoring/api/v3/sorting-and-filtering).
+     *     @type string $order_by
+     *           Optional. A comma-separated list of fields by which to sort the result.
+     *           Supports the same set of fields as in `filter`. Entries can be prefixed
+     *           with a minus sign to sort in descending rather than ascending order.
+     *           For more details, see [sorting and
+     *           filtering](https://cloud.google.com/monitoring/api/v3/sorting-and-filtering).
+     *     @type int $page_size
+     *           Optional. The maximum number of results to return in a single response. If
+     *           not set to a positive number, a reasonable value will be chosen by the
+     *           service.
+     *     @type string $page_token
+     *           Optional. If non-empty, `page_token` must contain a value returned as the
+     *           `next_page_token` in a previous response to request the next set
+     *           of results.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\NotificationService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     * to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     * This names the container
+     * in which to look for the notification channels; it does not name a
+     * specific channel. To query a specific channel by REST resource name, use
+     * the
+     * [`GetNotificationChannel`][google.monitoring.v3.NotificationChannelService.GetNotificationChannel]
+     * operation.
+     *
+     * Generated from protobuf field <code>string name = 5 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     * to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     * This names the container
+     * in which to look for the notification channels; it does not name a
+     * specific channel. To query a specific channel by REST resource name, use
+     * the
+     * [`GetNotificationChannel`][google.monitoring.v3.NotificationChannelService.GetNotificationChannel]
+     * operation.
+     *
+     * Generated from protobuf field <code>string name = 5 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. If provided, this field specifies the criteria that must be met
+     * by notification channels to be included in the response.
+     * For more details, see [sorting and
+     * filtering](https://cloud.google.com/monitoring/api/v3/sorting-and-filtering).
+     *
+     * Generated from protobuf field <code>string filter = 6 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return string
+     */
+    public function getFilter()
+    {
+        return $this->filter;
+    }
+
+    /**
+     * Optional. If provided, this field specifies the criteria that must be met
+     * by notification channels to be included in the response.
+     * For more details, see [sorting and
+     * filtering](https://cloud.google.com/monitoring/api/v3/sorting-and-filtering).
+     *
+     * Generated from protobuf field <code>string filter = 6 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setFilter($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->filter = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. A comma-separated list of fields by which to sort the result.
+     * Supports the same set of fields as in `filter`. Entries can be prefixed
+     * with a minus sign to sort in descending rather than ascending order.
+     * For more details, see [sorting and
+     * filtering](https://cloud.google.com/monitoring/api/v3/sorting-and-filtering).
+     *
+     * Generated from protobuf field <code>string order_by = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return string
+     */
+    public function getOrderBy()
+    {
+        return $this->order_by;
+    }
+
+    /**
+     * Optional. A comma-separated list of fields by which to sort the result.
+     * Supports the same set of fields as in `filter`. Entries can be prefixed
+     * with a minus sign to sort in descending rather than ascending order.
+     * For more details, see [sorting and
+     * filtering](https://cloud.google.com/monitoring/api/v3/sorting-and-filtering).
+     *
+     * Generated from protobuf field <code>string order_by = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setOrderBy($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->order_by = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. The maximum number of results to return in a single response. If
+     * not set to a positive number, a reasonable value will be chosen by the
+     * service.
+     *
+     * Generated from protobuf field <code>int32 page_size = 3 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return int
+     */
+    public function getPageSize()
+    {
+        return $this->page_size;
+    }
+
+    /**
+     * Optional. The maximum number of results to return in a single response. If
+     * not set to a positive number, a reasonable value will be chosen by the
+     * service.
+     *
+     * Generated from protobuf field <code>int32 page_size = 3 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setPageSize($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->page_size = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. If non-empty, `page_token` must contain a value returned as the
+     * `next_page_token` in a previous response to request the next set
+     * of results.
+     *
+     * Generated from protobuf field <code>string page_token = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return string
+     */
+    public function getPageToken()
+    {
+        return $this->page_token;
+    }
+
+    /**
+     * Optional. If non-empty, `page_token` must contain a value returned as the
+     * `next_page_token` in a previous response to request the next set
+     * of results.
+     *
+     * Generated from protobuf field <code>string page_token = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->page_token = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListNotificationChannelsResponse.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListNotificationChannelsResponse.php
new file mode 100644
index 000000000000..28dc01fb0af2
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListNotificationChannelsResponse.php
@@ -0,0 +1,151 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/notification_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `ListNotificationChannels` response.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ListNotificationChannelsResponse</code>
+ */
+class ListNotificationChannelsResponse extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The notification channels defined for the specified project.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.NotificationChannel notification_channels = 3;</code>
+     */
+    private $notification_channels;
+    /**
+     * If not empty, indicates that there may be more results that match
+     * the request. Use the value in the `page_token` field in a
+     * subsequent request to fetch the next set of results. If empty,
+     * all results have been returned.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     */
+    protected $next_page_token = '';
+    /**
+     * The total number of notification channels in all pages. This number is only
+     * an estimate, and may change in subsequent pages. https://aip.dev/158
+     *
+     * Generated from protobuf field <code>int32 total_size = 4;</code>
+     */
+    protected $total_size = 0;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type array<\Google\Cloud\Monitoring\V3\NotificationChannel>|\Google\Protobuf\Internal\RepeatedField $notification_channels
+     *           The notification channels defined for the specified project.
+     *     @type string $next_page_token
+     *           If not empty, indicates that there may be more results that match
+     *           the request. Use the value in the `page_token` field in a
+     *           subsequent request to fetch the next set of results. If empty,
+     *           all results have been returned.
+     *     @type int $total_size
+     *           The total number of notification channels in all pages. This number is only
+     *           an estimate, and may change in subsequent pages. https://aip.dev/158
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\NotificationService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The notification channels defined for the specified project.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.NotificationChannel notification_channels = 3;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getNotificationChannels()
+    {
+        return $this->notification_channels;
+    }
+
+    /**
+     * The notification channels defined for the specified project.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.NotificationChannel notification_channels = 3;</code>
+     * @param array<\Google\Cloud\Monitoring\V3\NotificationChannel>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setNotificationChannels($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\NotificationChannel::class);
+        $this->notification_channels = $arr;
+
+        return $this;
+    }
+
+    /**
+     * If not empty, indicates that there may be more results that match
+     * the request. Use the value in the `page_token` field in a
+     * subsequent request to fetch the next set of results. If empty,
+     * all results have been returned.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     * @return string
+     */
+    public function getNextPageToken()
+    {
+        return $this->next_page_token;
+    }
+
+    /**
+     * If not empty, indicates that there may be more results that match
+     * the request. Use the value in the `page_token` field in a
+     * subsequent request to fetch the next set of results. If empty,
+     * all results have been returned.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setNextPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->next_page_token = $var;
+
+        return $this;
+    }
+
+    /**
+     * The total number of notification channels in all pages. This number is only
+     * an estimate, and may change in subsequent pages. https://aip.dev/158
+     *
+     * Generated from protobuf field <code>int32 total_size = 4;</code>
+     * @return int
+     */
+    public function getTotalSize()
+    {
+        return $this->total_size;
+    }
+
+    /**
+     * The total number of notification channels in all pages. This number is only
+     * an estimate, and may change in subsequent pages. https://aip.dev/158
+     *
+     * Generated from protobuf field <code>int32 total_size = 4;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setTotalSize($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->total_size = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListServiceLevelObjectivesRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListServiceLevelObjectivesRequest.php
new file mode 100644
index 000000000000..19128d58f56f
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListServiceLevelObjectivesRequest.php
@@ -0,0 +1,257 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `ListServiceLevelObjectives` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ListServiceLevelObjectivesRequest</code>
+ */
+class ListServiceLevelObjectivesRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. Resource name of the parent containing the listed SLOs, either a
+     * project or a Monitoring Metrics Scope. The formats are:
+     *     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     *     workspaces/[HOST_PROJECT_ID_OR_NUMBER]/services/-
+     *
+     * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $parent = '';
+    /**
+     * A filter specifying what `ServiceLevelObjective`s to return.
+     *
+     * Generated from protobuf field <code>string filter = 2;</code>
+     */
+    protected $filter = '';
+    /**
+     * A non-negative number that is the maximum number of results to return.
+     * When 0, use default page size.
+     *
+     * Generated from protobuf field <code>int32 page_size = 3;</code>
+     */
+    protected $page_size = 0;
+    /**
+     * If this field is not empty then it must contain the `nextPageToken` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return additional results from the previous method call.
+     *
+     * Generated from protobuf field <code>string page_token = 4;</code>
+     */
+    protected $page_token = '';
+    /**
+     * View of the `ServiceLevelObjective`s to return. If `DEFAULT`, return each
+     * `ServiceLevelObjective` as originally defined. If `EXPLICIT` and the
+     * `ServiceLevelObjective` is defined in terms of a `BasicSli`, replace the
+     * `BasicSli` with a `RequestBasedSli` spelling out how the SLI is computed.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.ServiceLevelObjective.View view = 5;</code>
+     */
+    protected $view = 0;
+
+    /**
+     * @param string $parent Required. Resource name of the parent containing the listed SLOs, either a
+     *                       project or a Monitoring Metrics Scope. The formats are:
+     *
+     *                       projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     *                       workspaces/[HOST_PROJECT_ID_OR_NUMBER]/services/-
+     *                       Please see {@see ServiceMonitoringServiceClient::serviceName()} for help formatting this field.
+     *
+     * @return \Google\Cloud\Monitoring\V3\ListServiceLevelObjectivesRequest
+     *
+     * @experimental
+     */
+    public static function build(string $parent): self
+    {
+        return (new self())
+            ->setParent($parent);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $parent
+     *           Required. Resource name of the parent containing the listed SLOs, either a
+     *           project or a Monitoring Metrics Scope. The formats are:
+     *               projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     *               workspaces/[HOST_PROJECT_ID_OR_NUMBER]/services/-
+     *     @type string $filter
+     *           A filter specifying what `ServiceLevelObjective`s to return.
+     *     @type int $page_size
+     *           A non-negative number that is the maximum number of results to return.
+     *           When 0, use default page size.
+     *     @type string $page_token
+     *           If this field is not empty then it must contain the `nextPageToken` value
+     *           returned by a previous call to this method.  Using this field causes the
+     *           method to return additional results from the previous method call.
+     *     @type int $view
+     *           View of the `ServiceLevelObjective`s to return. If `DEFAULT`, return each
+     *           `ServiceLevelObjective` as originally defined. If `EXPLICIT` and the
+     *           `ServiceLevelObjective` is defined in terms of a `BasicSli`, replace the
+     *           `BasicSli` with a `RequestBasedSli` spelling out how the SLI is computed.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\ServiceService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. Resource name of the parent containing the listed SLOs, either a
+     * project or a Monitoring Metrics Scope. The formats are:
+     *     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     *     workspaces/[HOST_PROJECT_ID_OR_NUMBER]/services/-
+     *
+     * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getParent()
+    {
+        return $this->parent;
+    }
+
+    /**
+     * Required. Resource name of the parent containing the listed SLOs, either a
+     * project or a Monitoring Metrics Scope. The formats are:
+     *     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     *     workspaces/[HOST_PROJECT_ID_OR_NUMBER]/services/-
+     *
+     * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setParent($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->parent = $var;
+
+        return $this;
+    }
+
+    /**
+     * A filter specifying what `ServiceLevelObjective`s to return.
+     *
+     * Generated from protobuf field <code>string filter = 2;</code>
+     * @return string
+     */
+    public function getFilter()
+    {
+        return $this->filter;
+    }
+
+    /**
+     * A filter specifying what `ServiceLevelObjective`s to return.
+     *
+     * Generated from protobuf field <code>string filter = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setFilter($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->filter = $var;
+
+        return $this;
+    }
+
+    /**
+     * A non-negative number that is the maximum number of results to return.
+     * When 0, use default page size.
+     *
+     * Generated from protobuf field <code>int32 page_size = 3;</code>
+     * @return int
+     */
+    public function getPageSize()
+    {
+        return $this->page_size;
+    }
+
+    /**
+     * A non-negative number that is the maximum number of results to return.
+     * When 0, use default page size.
+     *
+     * Generated from protobuf field <code>int32 page_size = 3;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setPageSize($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->page_size = $var;
+
+        return $this;
+    }
+
+    /**
+     * If this field is not empty then it must contain the `nextPageToken` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return additional results from the previous method call.
+     *
+     * Generated from protobuf field <code>string page_token = 4;</code>
+     * @return string
+     */
+    public function getPageToken()
+    {
+        return $this->page_token;
+    }
+
+    /**
+     * If this field is not empty then it must contain the `nextPageToken` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return additional results from the previous method call.
+     *
+     * Generated from protobuf field <code>string page_token = 4;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->page_token = $var;
+
+        return $this;
+    }
+
+    /**
+     * View of the `ServiceLevelObjective`s to return. If `DEFAULT`, return each
+     * `ServiceLevelObjective` as originally defined. If `EXPLICIT` and the
+     * `ServiceLevelObjective` is defined in terms of a `BasicSli`, replace the
+     * `BasicSli` with a `RequestBasedSli` spelling out how the SLI is computed.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.ServiceLevelObjective.View view = 5;</code>
+     * @return int
+     */
+    public function getView()
+    {
+        return $this->view;
+    }
+
+    /**
+     * View of the `ServiceLevelObjective`s to return. If `DEFAULT`, return each
+     * `ServiceLevelObjective` as originally defined. If `EXPLICIT` and the
+     * `ServiceLevelObjective` is defined in terms of a `BasicSli`, replace the
+     * `BasicSli` with a `RequestBasedSli` spelling out how the SLI is computed.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.ServiceLevelObjective.View view = 5;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setView($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Cloud\Monitoring\V3\ServiceLevelObjective\View::class);
+        $this->view = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListServiceLevelObjectivesResponse.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListServiceLevelObjectivesResponse.php
new file mode 100644
index 000000000000..8e9d2ead1abf
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListServiceLevelObjectivesResponse.php
@@ -0,0 +1,109 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `ListServiceLevelObjectives` response.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ListServiceLevelObjectivesResponse</code>
+ */
+class ListServiceLevelObjectivesResponse extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The `ServiceLevelObjective`s matching the specified filter.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.ServiceLevelObjective service_level_objectives = 1;</code>
+     */
+    private $service_level_objectives;
+    /**
+     * If there are more results than have been returned, then this field is set
+     * to a non-empty value.  To see the additional results,
+     * use that value as `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     */
+    protected $next_page_token = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type array<\Google\Cloud\Monitoring\V3\ServiceLevelObjective>|\Google\Protobuf\Internal\RepeatedField $service_level_objectives
+     *           The `ServiceLevelObjective`s matching the specified filter.
+     *     @type string $next_page_token
+     *           If there are more results than have been returned, then this field is set
+     *           to a non-empty value.  To see the additional results,
+     *           use that value as `page_token` in the next call to this method.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\ServiceService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The `ServiceLevelObjective`s matching the specified filter.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.ServiceLevelObjective service_level_objectives = 1;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getServiceLevelObjectives()
+    {
+        return $this->service_level_objectives;
+    }
+
+    /**
+     * The `ServiceLevelObjective`s matching the specified filter.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.ServiceLevelObjective service_level_objectives = 1;</code>
+     * @param array<\Google\Cloud\Monitoring\V3\ServiceLevelObjective>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setServiceLevelObjectives($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\ServiceLevelObjective::class);
+        $this->service_level_objectives = $arr;
+
+        return $this;
+    }
+
+    /**
+     * If there are more results than have been returned, then this field is set
+     * to a non-empty value.  To see the additional results,
+     * use that value as `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     * @return string
+     */
+    public function getNextPageToken()
+    {
+        return $this->next_page_token;
+    }
+
+    /**
+     * If there are more results than have been returned, then this field is set
+     * to a non-empty value.  To see the additional results,
+     * use that value as `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setNextPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->next_page_token = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListServicesRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListServicesRequest.php
new file mode 100644
index 000000000000..795a4e8e34eb
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListServicesRequest.php
@@ -0,0 +1,275 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `ListServices` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ListServicesRequest</code>
+ */
+class ListServicesRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. Resource name of the parent containing the listed services,
+     * either a [project](https://cloud.google.com/monitoring/api/v3#project_name)
+     * or a Monitoring Metrics Scope. The formats are:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *     workspaces/[HOST_PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $parent = '';
+    /**
+     * A filter specifying what `Service`s to return. The filter supports
+     * filtering on a particular service-identifier type or one of its attributes.
+     * To filter on a particular service-identifier type, the `identifier_case`
+     * refers to which option in the `identifier` field is populated. For example,
+     * the filter `identifier_case = "CUSTOM"` would match all services with a
+     * value for the `custom` field. Valid options include "CUSTOM", "APP_ENGINE",
+     * "MESH_ISTIO", and the other options listed at
+     * https://cloud.google.com/monitoring/api/ref_v3/rest/v3/services#Service
+     * To filter on an attribute of a service-identifier type, apply the filter
+     * name by using the snake case of the service-identifier type and the
+     * attribute of that service-identifier type, and join the two with a period.
+     * For example, to filter by the `meshUid` field of the `MeshIstio`
+     * service-identifier type, you must filter on `mesh_istio.mesh_uid =
+     * "123"` to match all services with mesh UID "123". Service-identifier types
+     * and their attributes are described at
+     * https://cloud.google.com/monitoring/api/ref_v3/rest/v3/services#Service
+     *
+     * Generated from protobuf field <code>string filter = 2;</code>
+     */
+    protected $filter = '';
+    /**
+     * A non-negative number that is the maximum number of results to return.
+     * When 0, use default page size.
+     *
+     * Generated from protobuf field <code>int32 page_size = 3;</code>
+     */
+    protected $page_size = 0;
+    /**
+     * If this field is not empty then it must contain the `nextPageToken` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return additional results from the previous method call.
+     *
+     * Generated from protobuf field <code>string page_token = 4;</code>
+     */
+    protected $page_token = '';
+
+    /**
+     * @param string $parent Required. Resource name of the parent containing the listed services,
+     *                       either a [project](https://cloud.google.com/monitoring/api/v3#project_name)
+     *                       or a Monitoring Metrics Scope. The formats are:
+     *
+     *                       projects/[PROJECT_ID_OR_NUMBER]
+     *                       workspaces/[HOST_PROJECT_ID_OR_NUMBER]
+     *
+     * @return \Google\Cloud\Monitoring\V3\ListServicesRequest
+     *
+     * @experimental
+     */
+    public static function build(string $parent): self
+    {
+        return (new self())
+            ->setParent($parent);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $parent
+     *           Required. Resource name of the parent containing the listed services,
+     *           either a [project](https://cloud.google.com/monitoring/api/v3#project_name)
+     *           or a Monitoring Metrics Scope. The formats are:
+     *               projects/[PROJECT_ID_OR_NUMBER]
+     *               workspaces/[HOST_PROJECT_ID_OR_NUMBER]
+     *     @type string $filter
+     *           A filter specifying what `Service`s to return. The filter supports
+     *           filtering on a particular service-identifier type or one of its attributes.
+     *           To filter on a particular service-identifier type, the `identifier_case`
+     *           refers to which option in the `identifier` field is populated. For example,
+     *           the filter `identifier_case = "CUSTOM"` would match all services with a
+     *           value for the `custom` field. Valid options include "CUSTOM", "APP_ENGINE",
+     *           "MESH_ISTIO", and the other options listed at
+     *           https://cloud.google.com/monitoring/api/ref_v3/rest/v3/services#Service
+     *           To filter on an attribute of a service-identifier type, apply the filter
+     *           name by using the snake case of the service-identifier type and the
+     *           attribute of that service-identifier type, and join the two with a period.
+     *           For example, to filter by the `meshUid` field of the `MeshIstio`
+     *           service-identifier type, you must filter on `mesh_istio.mesh_uid =
+     *           "123"` to match all services with mesh UID "123". Service-identifier types
+     *           and their attributes are described at
+     *           https://cloud.google.com/monitoring/api/ref_v3/rest/v3/services#Service
+     *     @type int $page_size
+     *           A non-negative number that is the maximum number of results to return.
+     *           When 0, use default page size.
+     *     @type string $page_token
+     *           If this field is not empty then it must contain the `nextPageToken` value
+     *           returned by a previous call to this method.  Using this field causes the
+     *           method to return additional results from the previous method call.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\ServiceService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. Resource name of the parent containing the listed services,
+     * either a [project](https://cloud.google.com/monitoring/api/v3#project_name)
+     * or a Monitoring Metrics Scope. The formats are:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *     workspaces/[HOST_PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getParent()
+    {
+        return $this->parent;
+    }
+
+    /**
+     * Required. Resource name of the parent containing the listed services,
+     * either a [project](https://cloud.google.com/monitoring/api/v3#project_name)
+     * or a Monitoring Metrics Scope. The formats are:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *     workspaces/[HOST_PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setParent($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->parent = $var;
+
+        return $this;
+    }
+
+    /**
+     * A filter specifying what `Service`s to return. The filter supports
+     * filtering on a particular service-identifier type or one of its attributes.
+     * To filter on a particular service-identifier type, the `identifier_case`
+     * refers to which option in the `identifier` field is populated. For example,
+     * the filter `identifier_case = "CUSTOM"` would match all services with a
+     * value for the `custom` field. Valid options include "CUSTOM", "APP_ENGINE",
+     * "MESH_ISTIO", and the other options listed at
+     * https://cloud.google.com/monitoring/api/ref_v3/rest/v3/services#Service
+     * To filter on an attribute of a service-identifier type, apply the filter
+     * name by using the snake case of the service-identifier type and the
+     * attribute of that service-identifier type, and join the two with a period.
+     * For example, to filter by the `meshUid` field of the `MeshIstio`
+     * service-identifier type, you must filter on `mesh_istio.mesh_uid =
+     * "123"` to match all services with mesh UID "123". Service-identifier types
+     * and their attributes are described at
+     * https://cloud.google.com/monitoring/api/ref_v3/rest/v3/services#Service
+     *
+     * Generated from protobuf field <code>string filter = 2;</code>
+     * @return string
+     */
+    public function getFilter()
+    {
+        return $this->filter;
+    }
+
+    /**
+     * A filter specifying what `Service`s to return. The filter supports
+     * filtering on a particular service-identifier type or one of its attributes.
+     * To filter on a particular service-identifier type, the `identifier_case`
+     * refers to which option in the `identifier` field is populated. For example,
+     * the filter `identifier_case = "CUSTOM"` would match all services with a
+     * value for the `custom` field. Valid options include "CUSTOM", "APP_ENGINE",
+     * "MESH_ISTIO", and the other options listed at
+     * https://cloud.google.com/monitoring/api/ref_v3/rest/v3/services#Service
+     * To filter on an attribute of a service-identifier type, apply the filter
+     * name by using the snake case of the service-identifier type and the
+     * attribute of that service-identifier type, and join the two with a period.
+     * For example, to filter by the `meshUid` field of the `MeshIstio`
+     * service-identifier type, you must filter on `mesh_istio.mesh_uid =
+     * "123"` to match all services with mesh UID "123". Service-identifier types
+     * and their attributes are described at
+     * https://cloud.google.com/monitoring/api/ref_v3/rest/v3/services#Service
+     *
+     * Generated from protobuf field <code>string filter = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setFilter($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->filter = $var;
+
+        return $this;
+    }
+
+    /**
+     * A non-negative number that is the maximum number of results to return.
+     * When 0, use default page size.
+     *
+     * Generated from protobuf field <code>int32 page_size = 3;</code>
+     * @return int
+     */
+    public function getPageSize()
+    {
+        return $this->page_size;
+    }
+
+    /**
+     * A non-negative number that is the maximum number of results to return.
+     * When 0, use default page size.
+     *
+     * Generated from protobuf field <code>int32 page_size = 3;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setPageSize($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->page_size = $var;
+
+        return $this;
+    }
+
+    /**
+     * If this field is not empty then it must contain the `nextPageToken` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return additional results from the previous method call.
+     *
+     * Generated from protobuf field <code>string page_token = 4;</code>
+     * @return string
+     */
+    public function getPageToken()
+    {
+        return $this->page_token;
+    }
+
+    /**
+     * If this field is not empty then it must contain the `nextPageToken` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return additional results from the previous method call.
+     *
+     * Generated from protobuf field <code>string page_token = 4;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->page_token = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListServicesResponse.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListServicesResponse.php
new file mode 100644
index 000000000000..4359a2689b2e
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListServicesResponse.php
@@ -0,0 +1,109 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `ListServices` response.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ListServicesResponse</code>
+ */
+class ListServicesResponse extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The `Service`s matching the specified filter.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.Service services = 1;</code>
+     */
+    private $services;
+    /**
+     * If there are more results than have been returned, then this field is set
+     * to a non-empty value.  To see the additional results,
+     * use that value as `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     */
+    protected $next_page_token = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type array<\Google\Cloud\Monitoring\V3\Service>|\Google\Protobuf\Internal\RepeatedField $services
+     *           The `Service`s matching the specified filter.
+     *     @type string $next_page_token
+     *           If there are more results than have been returned, then this field is set
+     *           to a non-empty value.  To see the additional results,
+     *           use that value as `page_token` in the next call to this method.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\ServiceService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The `Service`s matching the specified filter.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.Service services = 1;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getServices()
+    {
+        return $this->services;
+    }
+
+    /**
+     * The `Service`s matching the specified filter.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.Service services = 1;</code>
+     * @param array<\Google\Cloud\Monitoring\V3\Service>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setServices($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\Service::class);
+        $this->services = $arr;
+
+        return $this;
+    }
+
+    /**
+     * If there are more results than have been returned, then this field is set
+     * to a non-empty value.  To see the additional results,
+     * use that value as `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     * @return string
+     */
+    public function getNextPageToken()
+    {
+        return $this->next_page_token;
+    }
+
+    /**
+     * If there are more results than have been returned, then this field is set
+     * to a non-empty value.  To see the additional results,
+     * use that value as `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setNextPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->next_page_token = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListSnoozesRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListSnoozesRequest.php
new file mode 100644
index 000000000000..ff92a8e233fa
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListSnoozesRequest.php
@@ -0,0 +1,252 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/snooze_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The message definition for listing `Snooze`s associated with the given
+ * `parent`, satisfying the optional `filter`.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ListSnoozesRequest</code>
+ */
+class ListSnoozesRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+     * `Snooze`s should be listed. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $parent = '';
+    /**
+     * Optional. Optional filter to restrict results to the given criteria. The
+     * following fields are supported.
+     *   * `interval.start_time`
+     *   * `interval.end_time`
+     * For example:
+     *     ```
+     *     interval.start_time > "2022-03-11T00:00:00-08:00" AND
+     *         interval.end_time < "2022-03-12T00:00:00-08:00"
+     *     ```
+     *
+     * Generated from protobuf field <code>string filter = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    protected $filter = '';
+    /**
+     * Optional. The maximum number of results to return for a single query. The
+     * server may further constrain the maximum number of results returned in a
+     * single page. The value should be in the range [1, 1000]. If the value given
+     * is outside this range, the server will decide the number of results to be
+     * returned.
+     *
+     * Generated from protobuf field <code>int32 page_size = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    protected $page_size = 0;
+    /**
+     * Optional. The `next_page_token` from a previous call to
+     * `ListSnoozesRequest` to get the next page of results.
+     *
+     * Generated from protobuf field <code>string page_token = 5 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    protected $page_token = '';
+
+    /**
+     * @param string $parent Required. The
+     *                       [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+     *                       `Snooze`s should be listed. The format is:
+     *
+     *                       projects/[PROJECT_ID_OR_NUMBER]
+     *                       Please see {@see SnoozeServiceClient::workspaceName()} for help formatting this field.
+     *
+     * @return \Google\Cloud\Monitoring\V3\ListSnoozesRequest
+     *
+     * @experimental
+     */
+    public static function build(string $parent): self
+    {
+        return (new self())
+            ->setParent($parent);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $parent
+     *           Required. The
+     *           [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+     *           `Snooze`s should be listed. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]
+     *     @type string $filter
+     *           Optional. Optional filter to restrict results to the given criteria. The
+     *           following fields are supported.
+     *             * `interval.start_time`
+     *             * `interval.end_time`
+     *           For example:
+     *               ```
+     *               interval.start_time > "2022-03-11T00:00:00-08:00" AND
+     *                   interval.end_time < "2022-03-12T00:00:00-08:00"
+     *               ```
+     *     @type int $page_size
+     *           Optional. The maximum number of results to return for a single query. The
+     *           server may further constrain the maximum number of results returned in a
+     *           single page. The value should be in the range [1, 1000]. If the value given
+     *           is outside this range, the server will decide the number of results to be
+     *           returned.
+     *     @type string $page_token
+     *           Optional. The `next_page_token` from a previous call to
+     *           `ListSnoozesRequest` to get the next page of results.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\SnoozeService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+     * `Snooze`s should be listed. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getParent()
+    {
+        return $this->parent;
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+     * `Snooze`s should be listed. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setParent($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->parent = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. Optional filter to restrict results to the given criteria. The
+     * following fields are supported.
+     *   * `interval.start_time`
+     *   * `interval.end_time`
+     * For example:
+     *     ```
+     *     interval.start_time > "2022-03-11T00:00:00-08:00" AND
+     *         interval.end_time < "2022-03-12T00:00:00-08:00"
+     *     ```
+     *
+     * Generated from protobuf field <code>string filter = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return string
+     */
+    public function getFilter()
+    {
+        return $this->filter;
+    }
+
+    /**
+     * Optional. Optional filter to restrict results to the given criteria. The
+     * following fields are supported.
+     *   * `interval.start_time`
+     *   * `interval.end_time`
+     * For example:
+     *     ```
+     *     interval.start_time > "2022-03-11T00:00:00-08:00" AND
+     *         interval.end_time < "2022-03-12T00:00:00-08:00"
+     *     ```
+     *
+     * Generated from protobuf field <code>string filter = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setFilter($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->filter = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. The maximum number of results to return for a single query. The
+     * server may further constrain the maximum number of results returned in a
+     * single page. The value should be in the range [1, 1000]. If the value given
+     * is outside this range, the server will decide the number of results to be
+     * returned.
+     *
+     * Generated from protobuf field <code>int32 page_size = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return int
+     */
+    public function getPageSize()
+    {
+        return $this->page_size;
+    }
+
+    /**
+     * Optional. The maximum number of results to return for a single query. The
+     * server may further constrain the maximum number of results returned in a
+     * single page. The value should be in the range [1, 1000]. If the value given
+     * is outside this range, the server will decide the number of results to be
+     * returned.
+     *
+     * Generated from protobuf field <code>int32 page_size = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setPageSize($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->page_size = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. The `next_page_token` from a previous call to
+     * `ListSnoozesRequest` to get the next page of results.
+     *
+     * Generated from protobuf field <code>string page_token = 5 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return string
+     */
+    public function getPageToken()
+    {
+        return $this->page_token;
+    }
+
+    /**
+     * Optional. The `next_page_token` from a previous call to
+     * `ListSnoozesRequest` to get the next page of results.
+     *
+     * Generated from protobuf field <code>string page_token = 5 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->page_token = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListSnoozesResponse.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListSnoozesResponse.php
new file mode 100644
index 000000000000..e22e8db840ef
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListSnoozesResponse.php
@@ -0,0 +1,106 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/snooze_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The results of a successful `ListSnoozes` call, containing the matching
+ * `Snooze`s.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ListSnoozesResponse</code>
+ */
+class ListSnoozesResponse extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * `Snooze`s matching this list call.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.Snooze snoozes = 1;</code>
+     */
+    private $snoozes;
+    /**
+     * Page token for repeated calls to `ListSnoozes`, to fetch additional pages
+     * of results. If this is empty or missing, there are no more pages.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     */
+    protected $next_page_token = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type array<\Google\Cloud\Monitoring\V3\Snooze>|\Google\Protobuf\Internal\RepeatedField $snoozes
+     *           `Snooze`s matching this list call.
+     *     @type string $next_page_token
+     *           Page token for repeated calls to `ListSnoozes`, to fetch additional pages
+     *           of results. If this is empty or missing, there are no more pages.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\SnoozeService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * `Snooze`s matching this list call.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.Snooze snoozes = 1;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getSnoozes()
+    {
+        return $this->snoozes;
+    }
+
+    /**
+     * `Snooze`s matching this list call.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.Snooze snoozes = 1;</code>
+     * @param array<\Google\Cloud\Monitoring\V3\Snooze>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setSnoozes($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\Snooze::class);
+        $this->snoozes = $arr;
+
+        return $this;
+    }
+
+    /**
+     * Page token for repeated calls to `ListSnoozes`, to fetch additional pages
+     * of results. If this is empty or missing, there are no more pages.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     * @return string
+     */
+    public function getNextPageToken()
+    {
+        return $this->next_page_token;
+    }
+
+    /**
+     * Page token for repeated calls to `ListSnoozes`, to fetch additional pages
+     * of results. If this is empty or missing, there are no more pages.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setNextPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->next_page_token = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListTimeSeriesRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListTimeSeriesRequest.php
new file mode 100644
index 000000000000..0b123db098c9
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListTimeSeriesRequest.php
@@ -0,0 +1,501 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `ListTimeSeries` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ListTimeSeriesRequest</code>
+ */
+class ListTimeSeriesRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name),
+     * organization or folder on which to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *     organizations/[ORGANIZATION_ID]
+     *     folders/[FOLDER_ID]
+     *
+     * Generated from protobuf field <code>string name = 10 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+    /**
+     * Required. A [monitoring
+     * filter](https://cloud.google.com/monitoring/api/v3/filters) that specifies
+     * which time series should be returned.  The filter must specify a single
+     * metric type, and can additionally specify metric labels and other
+     * information. For example:
+     *     metric.type = "compute.googleapis.com/instance/cpu/usage_time" AND
+     *         metric.labels.instance_name = "my-instance-name"
+     *
+     * Generated from protobuf field <code>string filter = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $filter = '';
+    /**
+     * Required. The time interval for which results should be returned. Only time
+     * series that contain data points in the specified interval are included in
+     * the response.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TimeInterval interval = 4 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $interval = null;
+    /**
+     * Specifies the alignment of data points in individual time series as
+     * well as how to combine the retrieved time series across specified labels.
+     * By default (if no `aggregation` is explicitly specified), the raw time
+     * series data is returned.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Aggregation aggregation = 5;</code>
+     */
+    protected $aggregation = null;
+    /**
+     * Apply a second aggregation after `aggregation` is applied. May only be
+     * specified if `aggregation` is specified.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Aggregation secondary_aggregation = 11;</code>
+     */
+    protected $secondary_aggregation = null;
+    /**
+     * Unsupported: must be left blank. The points in each time series are
+     * currently returned in reverse time order (most recent to oldest).
+     *
+     * Generated from protobuf field <code>string order_by = 6;</code>
+     */
+    protected $order_by = '';
+    /**
+     * Required. Specifies which information is returned about the time series.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.ListTimeSeriesRequest.TimeSeriesView view = 7 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $view = 0;
+    /**
+     * A positive number that is the maximum number of results to return. If
+     * `page_size` is empty or more than 100,000 results, the effective
+     * `page_size` is 100,000 results. If `view` is set to `FULL`, this is the
+     * maximum number of `Points` returned. If `view` is set to `HEADERS`, this is
+     * the maximum number of `TimeSeries` returned.
+     *
+     * Generated from protobuf field <code>int32 page_size = 8;</code>
+     */
+    protected $page_size = 0;
+    /**
+     * If this field is not empty then it must contain the `nextPageToken` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return additional results from the previous method call.
+     *
+     * Generated from protobuf field <code>string page_token = 9;</code>
+     */
+    protected $page_token = '';
+
+    /**
+     * @param string                                   $name     Required. The
+     *                                                           [project](https://cloud.google.com/monitoring/api/v3#project_name),
+     *                                                           organization or folder on which to execute the request. The format is:
+     *
+     *                                                           projects/[PROJECT_ID_OR_NUMBER]
+     *                                                           organizations/[ORGANIZATION_ID]
+     *                                                           folders/[FOLDER_ID]
+     *                                                           Please see {@see MetricServiceClient::workspaceName()} for help formatting this field.
+     * @param string                                   $filter   Required. A [monitoring
+     *                                                           filter](https://cloud.google.com/monitoring/api/v3/filters) that specifies
+     *                                                           which time series should be returned.  The filter must specify a single
+     *                                                           metric type, and can additionally specify metric labels and other
+     *                                                           information. For example:
+     *
+     *                                                           metric.type = "compute.googleapis.com/instance/cpu/usage_time" AND
+     *                                                           metric.labels.instance_name = "my-instance-name"
+     * @param \Google\Cloud\Monitoring\V3\TimeInterval $interval Required. The time interval for which results should be returned. Only time
+     *                                                           series that contain data points in the specified interval are included in
+     *                                                           the response.
+     * @param int                                      $view     Required. Specifies which information is returned about the time series.
+     *                                                           For allowed values, use constants defined on {@see \Google\Cloud\Monitoring\V3\ListTimeSeriesRequest\TimeSeriesView}
+     *
+     * @return \Google\Cloud\Monitoring\V3\ListTimeSeriesRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name, string $filter, \Google\Cloud\Monitoring\V3\TimeInterval $interval, int $view): self
+    {
+        return (new self())
+            ->setName($name)
+            ->setFilter($filter)
+            ->setInterval($interval)
+            ->setView($view);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The
+     *           [project](https://cloud.google.com/monitoring/api/v3#project_name),
+     *           organization or folder on which to execute the request. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]
+     *               organizations/[ORGANIZATION_ID]
+     *               folders/[FOLDER_ID]
+     *     @type string $filter
+     *           Required. A [monitoring
+     *           filter](https://cloud.google.com/monitoring/api/v3/filters) that specifies
+     *           which time series should be returned.  The filter must specify a single
+     *           metric type, and can additionally specify metric labels and other
+     *           information. For example:
+     *               metric.type = "compute.googleapis.com/instance/cpu/usage_time" AND
+     *                   metric.labels.instance_name = "my-instance-name"
+     *     @type \Google\Cloud\Monitoring\V3\TimeInterval $interval
+     *           Required. The time interval for which results should be returned. Only time
+     *           series that contain data points in the specified interval are included in
+     *           the response.
+     *     @type \Google\Cloud\Monitoring\V3\Aggregation $aggregation
+     *           Specifies the alignment of data points in individual time series as
+     *           well as how to combine the retrieved time series across specified labels.
+     *           By default (if no `aggregation` is explicitly specified), the raw time
+     *           series data is returned.
+     *     @type \Google\Cloud\Monitoring\V3\Aggregation $secondary_aggregation
+     *           Apply a second aggregation after `aggregation` is applied. May only be
+     *           specified if `aggregation` is specified.
+     *     @type string $order_by
+     *           Unsupported: must be left blank. The points in each time series are
+     *           currently returned in reverse time order (most recent to oldest).
+     *     @type int $view
+     *           Required. Specifies which information is returned about the time series.
+     *     @type int $page_size
+     *           A positive number that is the maximum number of results to return. If
+     *           `page_size` is empty or more than 100,000 results, the effective
+     *           `page_size` is 100,000 results. If `view` is set to `FULL`, this is the
+     *           maximum number of `Points` returned. If `view` is set to `HEADERS`, this is
+     *           the maximum number of `TimeSeries` returned.
+     *     @type string $page_token
+     *           If this field is not empty then it must contain the `nextPageToken` value
+     *           returned by a previous call to this method.  Using this field causes the
+     *           method to return additional results from the previous method call.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\MetricService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name),
+     * organization or folder on which to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *     organizations/[ORGANIZATION_ID]
+     *     folders/[FOLDER_ID]
+     *
+     * Generated from protobuf field <code>string name = 10 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name),
+     * organization or folder on which to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *     organizations/[ORGANIZATION_ID]
+     *     folders/[FOLDER_ID]
+     *
+     * Generated from protobuf field <code>string name = 10 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * Required. A [monitoring
+     * filter](https://cloud.google.com/monitoring/api/v3/filters) that specifies
+     * which time series should be returned.  The filter must specify a single
+     * metric type, and can additionally specify metric labels and other
+     * information. For example:
+     *     metric.type = "compute.googleapis.com/instance/cpu/usage_time" AND
+     *         metric.labels.instance_name = "my-instance-name"
+     *
+     * Generated from protobuf field <code>string filter = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return string
+     */
+    public function getFilter()
+    {
+        return $this->filter;
+    }
+
+    /**
+     * Required. A [monitoring
+     * filter](https://cloud.google.com/monitoring/api/v3/filters) that specifies
+     * which time series should be returned.  The filter must specify a single
+     * metric type, and can additionally specify metric labels and other
+     * information. For example:
+     *     metric.type = "compute.googleapis.com/instance/cpu/usage_time" AND
+     *         metric.labels.instance_name = "my-instance-name"
+     *
+     * Generated from protobuf field <code>string filter = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setFilter($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->filter = $var;
+
+        return $this;
+    }
+
+    /**
+     * Required. The time interval for which results should be returned. Only time
+     * series that contain data points in the specified interval are included in
+     * the response.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TimeInterval interval = 4 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return \Google\Cloud\Monitoring\V3\TimeInterval|null
+     */
+    public function getInterval()
+    {
+        return $this->interval;
+    }
+
+    public function hasInterval()
+    {
+        return isset($this->interval);
+    }
+
+    public function clearInterval()
+    {
+        unset($this->interval);
+    }
+
+    /**
+     * Required. The time interval for which results should be returned. Only time
+     * series that contain data points in the specified interval are included in
+     * the response.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TimeInterval interval = 4 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param \Google\Cloud\Monitoring\V3\TimeInterval $var
+     * @return $this
+     */
+    public function setInterval($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\TimeInterval::class);
+        $this->interval = $var;
+
+        return $this;
+    }
+
+    /**
+     * Specifies the alignment of data points in individual time series as
+     * well as how to combine the retrieved time series across specified labels.
+     * By default (if no `aggregation` is explicitly specified), the raw time
+     * series data is returned.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Aggregation aggregation = 5;</code>
+     * @return \Google\Cloud\Monitoring\V3\Aggregation|null
+     */
+    public function getAggregation()
+    {
+        return $this->aggregation;
+    }
+
+    public function hasAggregation()
+    {
+        return isset($this->aggregation);
+    }
+
+    public function clearAggregation()
+    {
+        unset($this->aggregation);
+    }
+
+    /**
+     * Specifies the alignment of data points in individual time series as
+     * well as how to combine the retrieved time series across specified labels.
+     * By default (if no `aggregation` is explicitly specified), the raw time
+     * series data is returned.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Aggregation aggregation = 5;</code>
+     * @param \Google\Cloud\Monitoring\V3\Aggregation $var
+     * @return $this
+     */
+    public function setAggregation($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\Aggregation::class);
+        $this->aggregation = $var;
+
+        return $this;
+    }
+
+    /**
+     * Apply a second aggregation after `aggregation` is applied. May only be
+     * specified if `aggregation` is specified.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Aggregation secondary_aggregation = 11;</code>
+     * @return \Google\Cloud\Monitoring\V3\Aggregation|null
+     */
+    public function getSecondaryAggregation()
+    {
+        return $this->secondary_aggregation;
+    }
+
+    public function hasSecondaryAggregation()
+    {
+        return isset($this->secondary_aggregation);
+    }
+
+    public function clearSecondaryAggregation()
+    {
+        unset($this->secondary_aggregation);
+    }
+
+    /**
+     * Apply a second aggregation after `aggregation` is applied. May only be
+     * specified if `aggregation` is specified.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Aggregation secondary_aggregation = 11;</code>
+     * @param \Google\Cloud\Monitoring\V3\Aggregation $var
+     * @return $this
+     */
+    public function setSecondaryAggregation($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\Aggregation::class);
+        $this->secondary_aggregation = $var;
+
+        return $this;
+    }
+
+    /**
+     * Unsupported: must be left blank. The points in each time series are
+     * currently returned in reverse time order (most recent to oldest).
+     *
+     * Generated from protobuf field <code>string order_by = 6;</code>
+     * @return string
+     */
+    public function getOrderBy()
+    {
+        return $this->order_by;
+    }
+
+    /**
+     * Unsupported: must be left blank. The points in each time series are
+     * currently returned in reverse time order (most recent to oldest).
+     *
+     * Generated from protobuf field <code>string order_by = 6;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setOrderBy($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->order_by = $var;
+
+        return $this;
+    }
+
+    /**
+     * Required. Specifies which information is returned about the time series.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.ListTimeSeriesRequest.TimeSeriesView view = 7 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return int
+     */
+    public function getView()
+    {
+        return $this->view;
+    }
+
+    /**
+     * Required. Specifies which information is returned about the time series.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.ListTimeSeriesRequest.TimeSeriesView view = 7 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setView($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Cloud\Monitoring\V3\ListTimeSeriesRequest\TimeSeriesView::class);
+        $this->view = $var;
+
+        return $this;
+    }
+
+    /**
+     * A positive number that is the maximum number of results to return. If
+     * `page_size` is empty or more than 100,000 results, the effective
+     * `page_size` is 100,000 results. If `view` is set to `FULL`, this is the
+     * maximum number of `Points` returned. If `view` is set to `HEADERS`, this is
+     * the maximum number of `TimeSeries` returned.
+     *
+     * Generated from protobuf field <code>int32 page_size = 8;</code>
+     * @return int
+     */
+    public function getPageSize()
+    {
+        return $this->page_size;
+    }
+
+    /**
+     * A positive number that is the maximum number of results to return. If
+     * `page_size` is empty or more than 100,000 results, the effective
+     * `page_size` is 100,000 results. If `view` is set to `FULL`, this is the
+     * maximum number of `Points` returned. If `view` is set to `HEADERS`, this is
+     * the maximum number of `TimeSeries` returned.
+     *
+     * Generated from protobuf field <code>int32 page_size = 8;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setPageSize($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->page_size = $var;
+
+        return $this;
+    }
+
+    /**
+     * If this field is not empty then it must contain the `nextPageToken` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return additional results from the previous method call.
+     *
+     * Generated from protobuf field <code>string page_token = 9;</code>
+     * @return string
+     */
+    public function getPageToken()
+    {
+        return $this->page_token;
+    }
+
+    /**
+     * If this field is not empty then it must contain the `nextPageToken` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return additional results from the previous method call.
+     *
+     * Generated from protobuf field <code>string page_token = 9;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->page_token = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListTimeSeriesRequest/TimeSeriesView.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListTimeSeriesRequest/TimeSeriesView.php
new file mode 100644
index 000000000000..cd4d2c1bcc55
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListTimeSeriesRequest/TimeSeriesView.php
@@ -0,0 +1,59 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric_service.proto
+
+namespace Google\Cloud\Monitoring\V3\ListTimeSeriesRequest;
+
+use UnexpectedValueException;
+
+/**
+ * Controls which fields are returned by `ListTimeSeries*`.
+ *
+ * Protobuf type <code>google.monitoring.v3.ListTimeSeriesRequest.TimeSeriesView</code>
+ */
+class TimeSeriesView
+{
+    /**
+     * Returns the identity of the metric(s), the time series,
+     * and the time series data.
+     *
+     * Generated from protobuf enum <code>FULL = 0;</code>
+     */
+    const FULL = 0;
+    /**
+     * Returns the identity of the metric and the time series resource,
+     * but not the time series data.
+     *
+     * Generated from protobuf enum <code>HEADERS = 1;</code>
+     */
+    const HEADERS = 1;
+
+    private static $valueToName = [
+        self::FULL => 'FULL',
+        self::HEADERS => 'HEADERS',
+    ];
+
+    public static function name($value)
+    {
+        if (!isset(self::$valueToName[$value])) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no name defined for value %s', __CLASS__, $value));
+        }
+        return self::$valueToName[$value];
+    }
+
+
+    public static function value($name)
+    {
+        $const = __CLASS__ . '::' . strtoupper($name);
+        if (!defined($const)) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no value defined for name %s', __CLASS__, $name));
+        }
+        return constant($const);
+    }
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(TimeSeriesView::class, \Google\Cloud\Monitoring\V3\ListTimeSeriesRequest_TimeSeriesView::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListTimeSeriesResponse.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListTimeSeriesResponse.php
new file mode 100644
index 000000000000..f2d874bd3478
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListTimeSeriesResponse.php
@@ -0,0 +1,201 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `ListTimeSeries` response.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ListTimeSeriesResponse</code>
+ */
+class ListTimeSeriesResponse extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * One or more time series that match the filter included in the request.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.TimeSeries time_series = 1;</code>
+     */
+    private $time_series;
+    /**
+     * If there are more results than have been returned, then this field is set
+     * to a non-empty value.  To see the additional results,
+     * use that value as `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     */
+    protected $next_page_token = '';
+    /**
+     * Query execution errors that may have caused the time series data returned
+     * to be incomplete.
+     *
+     * Generated from protobuf field <code>repeated .google.rpc.Status execution_errors = 3;</code>
+     */
+    private $execution_errors;
+    /**
+     * The unit in which all `time_series` point values are reported. `unit`
+     * follows the UCUM format for units as seen in
+     * https://unitsofmeasure.org/ucum.html.
+     * If different `time_series` have different units (for example, because they
+     * come from different metric types, or a unit is absent), then `unit` will be
+     * "{not_a_unit}".
+     *
+     * Generated from protobuf field <code>string unit = 5;</code>
+     */
+    protected $unit = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type array<\Google\Cloud\Monitoring\V3\TimeSeries>|\Google\Protobuf\Internal\RepeatedField $time_series
+     *           One or more time series that match the filter included in the request.
+     *     @type string $next_page_token
+     *           If there are more results than have been returned, then this field is set
+     *           to a non-empty value.  To see the additional results,
+     *           use that value as `page_token` in the next call to this method.
+     *     @type array<\Google\Rpc\Status>|\Google\Protobuf\Internal\RepeatedField $execution_errors
+     *           Query execution errors that may have caused the time series data returned
+     *           to be incomplete.
+     *     @type string $unit
+     *           The unit in which all `time_series` point values are reported. `unit`
+     *           follows the UCUM format for units as seen in
+     *           https://unitsofmeasure.org/ucum.html.
+     *           If different `time_series` have different units (for example, because they
+     *           come from different metric types, or a unit is absent), then `unit` will be
+     *           "{not_a_unit}".
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\MetricService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * One or more time series that match the filter included in the request.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.TimeSeries time_series = 1;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getTimeSeries()
+    {
+        return $this->time_series;
+    }
+
+    /**
+     * One or more time series that match the filter included in the request.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.TimeSeries time_series = 1;</code>
+     * @param array<\Google\Cloud\Monitoring\V3\TimeSeries>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setTimeSeries($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\TimeSeries::class);
+        $this->time_series = $arr;
+
+        return $this;
+    }
+
+    /**
+     * If there are more results than have been returned, then this field is set
+     * to a non-empty value.  To see the additional results,
+     * use that value as `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     * @return string
+     */
+    public function getNextPageToken()
+    {
+        return $this->next_page_token;
+    }
+
+    /**
+     * If there are more results than have been returned, then this field is set
+     * to a non-empty value.  To see the additional results,
+     * use that value as `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setNextPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->next_page_token = $var;
+
+        return $this;
+    }
+
+    /**
+     * Query execution errors that may have caused the time series data returned
+     * to be incomplete.
+     *
+     * Generated from protobuf field <code>repeated .google.rpc.Status execution_errors = 3;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getExecutionErrors()
+    {
+        return $this->execution_errors;
+    }
+
+    /**
+     * Query execution errors that may have caused the time series data returned
+     * to be incomplete.
+     *
+     * Generated from protobuf field <code>repeated .google.rpc.Status execution_errors = 3;</code>
+     * @param array<\Google\Rpc\Status>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setExecutionErrors($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Rpc\Status::class);
+        $this->execution_errors = $arr;
+
+        return $this;
+    }
+
+    /**
+     * The unit in which all `time_series` point values are reported. `unit`
+     * follows the UCUM format for units as seen in
+     * https://unitsofmeasure.org/ucum.html.
+     * If different `time_series` have different units (for example, because they
+     * come from different metric types, or a unit is absent), then `unit` will be
+     * "{not_a_unit}".
+     *
+     * Generated from protobuf field <code>string unit = 5;</code>
+     * @return string
+     */
+    public function getUnit()
+    {
+        return $this->unit;
+    }
+
+    /**
+     * The unit in which all `time_series` point values are reported. `unit`
+     * follows the UCUM format for units as seen in
+     * https://unitsofmeasure.org/ucum.html.
+     * If different `time_series` have different units (for example, because they
+     * come from different metric types, or a unit is absent), then `unit` will be
+     * "{not_a_unit}".
+     *
+     * Generated from protobuf field <code>string unit = 5;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setUnit($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->unit = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListUptimeCheckConfigsRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListUptimeCheckConfigsRequest.php
new file mode 100644
index 000000000000..0718e498334a
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListUptimeCheckConfigsRequest.php
@@ -0,0 +1,230 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The protocol for the `ListUptimeCheckConfigs` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ListUptimeCheckConfigsRequest</code>
+ */
+class ListUptimeCheckConfigsRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+     * Uptime check configurations are listed. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $parent = '';
+    /**
+     * If provided, this field specifies the criteria that must be met by
+     * uptime checks to be included in the response.
+     * For more details, see [Filtering
+     * syntax](https://cloud.google.com/monitoring/api/v3/sorting-and-filtering#filter_syntax).
+     *
+     * Generated from protobuf field <code>string filter = 2;</code>
+     */
+    protected $filter = '';
+    /**
+     * The maximum number of results to return in a single response. The server
+     * may further constrain the maximum number of results returned in a single
+     * page. If the page_size is <=0, the server will decide the number of results
+     * to be returned.
+     *
+     * Generated from protobuf field <code>int32 page_size = 3;</code>
+     */
+    protected $page_size = 0;
+    /**
+     * If this field is not empty then it must contain the `nextPageToken` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return more results from the previous method call.
+     *
+     * Generated from protobuf field <code>string page_token = 4;</code>
+     */
+    protected $page_token = '';
+
+    /**
+     * @param string $parent Required. The
+     *                       [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+     *                       Uptime check configurations are listed. The format is:
+     *
+     *                       projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * @return \Google\Cloud\Monitoring\V3\ListUptimeCheckConfigsRequest
+     *
+     * @experimental
+     */
+    public static function build(string $parent): self
+    {
+        return (new self())
+            ->setParent($parent);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $parent
+     *           Required. The
+     *           [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+     *           Uptime check configurations are listed. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]
+     *     @type string $filter
+     *           If provided, this field specifies the criteria that must be met by
+     *           uptime checks to be included in the response.
+     *           For more details, see [Filtering
+     *           syntax](https://cloud.google.com/monitoring/api/v3/sorting-and-filtering#filter_syntax).
+     *     @type int $page_size
+     *           The maximum number of results to return in a single response. The server
+     *           may further constrain the maximum number of results returned in a single
+     *           page. If the page_size is <=0, the server will decide the number of results
+     *           to be returned.
+     *     @type string $page_token
+     *           If this field is not empty then it must contain the `nextPageToken` value
+     *           returned by a previous call to this method.  Using this field causes the
+     *           method to return more results from the previous method call.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\UptimeService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+     * Uptime check configurations are listed. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getParent()
+    {
+        return $this->parent;
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+     * Uptime check configurations are listed. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setParent($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->parent = $var;
+
+        return $this;
+    }
+
+    /**
+     * If provided, this field specifies the criteria that must be met by
+     * uptime checks to be included in the response.
+     * For more details, see [Filtering
+     * syntax](https://cloud.google.com/monitoring/api/v3/sorting-and-filtering#filter_syntax).
+     *
+     * Generated from protobuf field <code>string filter = 2;</code>
+     * @return string
+     */
+    public function getFilter()
+    {
+        return $this->filter;
+    }
+
+    /**
+     * If provided, this field specifies the criteria that must be met by
+     * uptime checks to be included in the response.
+     * For more details, see [Filtering
+     * syntax](https://cloud.google.com/monitoring/api/v3/sorting-and-filtering#filter_syntax).
+     *
+     * Generated from protobuf field <code>string filter = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setFilter($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->filter = $var;
+
+        return $this;
+    }
+
+    /**
+     * The maximum number of results to return in a single response. The server
+     * may further constrain the maximum number of results returned in a single
+     * page. If the page_size is <=0, the server will decide the number of results
+     * to be returned.
+     *
+     * Generated from protobuf field <code>int32 page_size = 3;</code>
+     * @return int
+     */
+    public function getPageSize()
+    {
+        return $this->page_size;
+    }
+
+    /**
+     * The maximum number of results to return in a single response. The server
+     * may further constrain the maximum number of results returned in a single
+     * page. If the page_size is <=0, the server will decide the number of results
+     * to be returned.
+     *
+     * Generated from protobuf field <code>int32 page_size = 3;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setPageSize($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->page_size = $var;
+
+        return $this;
+    }
+
+    /**
+     * If this field is not empty then it must contain the `nextPageToken` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return more results from the previous method call.
+     *
+     * Generated from protobuf field <code>string page_token = 4;</code>
+     * @return string
+     */
+    public function getPageToken()
+    {
+        return $this->page_token;
+    }
+
+    /**
+     * If this field is not empty then it must contain the `nextPageToken` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return more results from the previous method call.
+     *
+     * Generated from protobuf field <code>string page_token = 4;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->page_token = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListUptimeCheckConfigsResponse.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListUptimeCheckConfigsResponse.php
new file mode 100644
index 000000000000..f12354762fe7
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListUptimeCheckConfigsResponse.php
@@ -0,0 +1,155 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The protocol for the `ListUptimeCheckConfigs` response.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ListUptimeCheckConfigsResponse</code>
+ */
+class ListUptimeCheckConfigsResponse extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The returned Uptime check configurations.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.UptimeCheckConfig uptime_check_configs = 1;</code>
+     */
+    private $uptime_check_configs;
+    /**
+     * This field represents the pagination token to retrieve the next page of
+     * results. If the value is empty, it means no further results for the
+     * request. To retrieve the next page of results, the value of the
+     * next_page_token is passed to the subsequent List method call (in the
+     * request message's page_token field).
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     */
+    protected $next_page_token = '';
+    /**
+     * The total number of Uptime check configurations for the project,
+     * irrespective of any pagination.
+     *
+     * Generated from protobuf field <code>int32 total_size = 3;</code>
+     */
+    protected $total_size = 0;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type array<\Google\Cloud\Monitoring\V3\UptimeCheckConfig>|\Google\Protobuf\Internal\RepeatedField $uptime_check_configs
+     *           The returned Uptime check configurations.
+     *     @type string $next_page_token
+     *           This field represents the pagination token to retrieve the next page of
+     *           results. If the value is empty, it means no further results for the
+     *           request. To retrieve the next page of results, the value of the
+     *           next_page_token is passed to the subsequent List method call (in the
+     *           request message's page_token field).
+     *     @type int $total_size
+     *           The total number of Uptime check configurations for the project,
+     *           irrespective of any pagination.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\UptimeService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The returned Uptime check configurations.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.UptimeCheckConfig uptime_check_configs = 1;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getUptimeCheckConfigs()
+    {
+        return $this->uptime_check_configs;
+    }
+
+    /**
+     * The returned Uptime check configurations.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.UptimeCheckConfig uptime_check_configs = 1;</code>
+     * @param array<\Google\Cloud\Monitoring\V3\UptimeCheckConfig>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setUptimeCheckConfigs($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\UptimeCheckConfig::class);
+        $this->uptime_check_configs = $arr;
+
+        return $this;
+    }
+
+    /**
+     * This field represents the pagination token to retrieve the next page of
+     * results. If the value is empty, it means no further results for the
+     * request. To retrieve the next page of results, the value of the
+     * next_page_token is passed to the subsequent List method call (in the
+     * request message's page_token field).
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     * @return string
+     */
+    public function getNextPageToken()
+    {
+        return $this->next_page_token;
+    }
+
+    /**
+     * This field represents the pagination token to retrieve the next page of
+     * results. If the value is empty, it means no further results for the
+     * request. To retrieve the next page of results, the value of the
+     * next_page_token is passed to the subsequent List method call (in the
+     * request message's page_token field).
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setNextPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->next_page_token = $var;
+
+        return $this;
+    }
+
+    /**
+     * The total number of Uptime check configurations for the project,
+     * irrespective of any pagination.
+     *
+     * Generated from protobuf field <code>int32 total_size = 3;</code>
+     * @return int
+     */
+    public function getTotalSize()
+    {
+        return $this->total_size;
+    }
+
+    /**
+     * The total number of Uptime check configurations for the project,
+     * irrespective of any pagination.
+     *
+     * Generated from protobuf field <code>int32 total_size = 3;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setTotalSize($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->total_size = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListUptimeCheckIpsRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListUptimeCheckIpsRequest.php
new file mode 100644
index 000000000000..f2d106e88980
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListUptimeCheckIpsRequest.php
@@ -0,0 +1,129 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The protocol for the `ListUptimeCheckIps` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ListUptimeCheckIpsRequest</code>
+ */
+class ListUptimeCheckIpsRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The maximum number of results to return in a single response. The server
+     * may further constrain the maximum number of results returned in a single
+     * page. If the page_size is <=0, the server will decide the number of results
+     * to be returned.
+     * NOTE: this field is not yet implemented
+     *
+     * Generated from protobuf field <code>int32 page_size = 2;</code>
+     */
+    protected $page_size = 0;
+    /**
+     * If this field is not empty then it must contain the `nextPageToken` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return more results from the previous method call.
+     * NOTE: this field is not yet implemented
+     *
+     * Generated from protobuf field <code>string page_token = 3;</code>
+     */
+    protected $page_token = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type int $page_size
+     *           The maximum number of results to return in a single response. The server
+     *           may further constrain the maximum number of results returned in a single
+     *           page. If the page_size is <=0, the server will decide the number of results
+     *           to be returned.
+     *           NOTE: this field is not yet implemented
+     *     @type string $page_token
+     *           If this field is not empty then it must contain the `nextPageToken` value
+     *           returned by a previous call to this method.  Using this field causes the
+     *           method to return more results from the previous method call.
+     *           NOTE: this field is not yet implemented
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\UptimeService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The maximum number of results to return in a single response. The server
+     * may further constrain the maximum number of results returned in a single
+     * page. If the page_size is <=0, the server will decide the number of results
+     * to be returned.
+     * NOTE: this field is not yet implemented
+     *
+     * Generated from protobuf field <code>int32 page_size = 2;</code>
+     * @return int
+     */
+    public function getPageSize()
+    {
+        return $this->page_size;
+    }
+
+    /**
+     * The maximum number of results to return in a single response. The server
+     * may further constrain the maximum number of results returned in a single
+     * page. If the page_size is <=0, the server will decide the number of results
+     * to be returned.
+     * NOTE: this field is not yet implemented
+     *
+     * Generated from protobuf field <code>int32 page_size = 2;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setPageSize($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->page_size = $var;
+
+        return $this;
+    }
+
+    /**
+     * If this field is not empty then it must contain the `nextPageToken` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return more results from the previous method call.
+     * NOTE: this field is not yet implemented
+     *
+     * Generated from protobuf field <code>string page_token = 3;</code>
+     * @return string
+     */
+    public function getPageToken()
+    {
+        return $this->page_token;
+    }
+
+    /**
+     * If this field is not empty then it must contain the `nextPageToken` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return more results from the previous method call.
+     * NOTE: this field is not yet implemented
+     *
+     * Generated from protobuf field <code>string page_token = 3;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->page_token = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListUptimeCheckIpsResponse.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListUptimeCheckIpsResponse.php
new file mode 100644
index 000000000000..26da2fcdd61f
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ListUptimeCheckIpsResponse.php
@@ -0,0 +1,125 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The protocol for the `ListUptimeCheckIps` response.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ListUptimeCheckIpsResponse</code>
+ */
+class ListUptimeCheckIpsResponse extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The returned list of IP addresses (including region and location) that the
+     * checkers run from.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.UptimeCheckIp uptime_check_ips = 1;</code>
+     */
+    private $uptime_check_ips;
+    /**
+     * This field represents the pagination token to retrieve the next page of
+     * results. If the value is empty, it means no further results for the
+     * request. To retrieve the next page of results, the value of the
+     * next_page_token is passed to the subsequent List method call (in the
+     * request message's page_token field).
+     * NOTE: this field is not yet implemented
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     */
+    protected $next_page_token = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type array<\Google\Cloud\Monitoring\V3\UptimeCheckIp>|\Google\Protobuf\Internal\RepeatedField $uptime_check_ips
+     *           The returned list of IP addresses (including region and location) that the
+     *           checkers run from.
+     *     @type string $next_page_token
+     *           This field represents the pagination token to retrieve the next page of
+     *           results. If the value is empty, it means no further results for the
+     *           request. To retrieve the next page of results, the value of the
+     *           next_page_token is passed to the subsequent List method call (in the
+     *           request message's page_token field).
+     *           NOTE: this field is not yet implemented
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\UptimeService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The returned list of IP addresses (including region and location) that the
+     * checkers run from.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.UptimeCheckIp uptime_check_ips = 1;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getUptimeCheckIps()
+    {
+        return $this->uptime_check_ips;
+    }
+
+    /**
+     * The returned list of IP addresses (including region and location) that the
+     * checkers run from.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.UptimeCheckIp uptime_check_ips = 1;</code>
+     * @param array<\Google\Cloud\Monitoring\V3\UptimeCheckIp>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setUptimeCheckIps($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\UptimeCheckIp::class);
+        $this->uptime_check_ips = $arr;
+
+        return $this;
+    }
+
+    /**
+     * This field represents the pagination token to retrieve the next page of
+     * results. If the value is empty, it means no further results for the
+     * request. To retrieve the next page of results, the value of the
+     * next_page_token is passed to the subsequent List method call (in the
+     * request message's page_token field).
+     * NOTE: this field is not yet implemented
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     * @return string
+     */
+    public function getNextPageToken()
+    {
+        return $this->next_page_token;
+    }
+
+    /**
+     * This field represents the pagination token to retrieve the next page of
+     * results. If the value is empty, it means no further results for the
+     * request. To retrieve the next page of results, the value of the
+     * next_page_token is passed to the subsequent List method call (in the
+     * request message's page_token field).
+     * NOTE: this field is not yet implemented
+     *
+     * Generated from protobuf field <code>string next_page_token = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setNextPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->next_page_token = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/MutationRecord.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/MutationRecord.php
new file mode 100644
index 000000000000..73a1f82bce89
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/MutationRecord.php
@@ -0,0 +1,111 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/mutation_record.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Describes a change made to a configuration.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.MutationRecord</code>
+ */
+class MutationRecord extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * When the change occurred.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Timestamp mutate_time = 1;</code>
+     */
+    protected $mutate_time = null;
+    /**
+     * The email address of the user making the change.
+     *
+     * Generated from protobuf field <code>string mutated_by = 2;</code>
+     */
+    protected $mutated_by = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type \Google\Protobuf\Timestamp $mutate_time
+     *           When the change occurred.
+     *     @type string $mutated_by
+     *           The email address of the user making the change.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\MutationRecord::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * When the change occurred.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Timestamp mutate_time = 1;</code>
+     * @return \Google\Protobuf\Timestamp|null
+     */
+    public function getMutateTime()
+    {
+        return $this->mutate_time;
+    }
+
+    public function hasMutateTime()
+    {
+        return isset($this->mutate_time);
+    }
+
+    public function clearMutateTime()
+    {
+        unset($this->mutate_time);
+    }
+
+    /**
+     * When the change occurred.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Timestamp mutate_time = 1;</code>
+     * @param \Google\Protobuf\Timestamp $var
+     * @return $this
+     */
+    public function setMutateTime($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\Timestamp::class);
+        $this->mutate_time = $var;
+
+        return $this;
+    }
+
+    /**
+     * The email address of the user making the change.
+     *
+     * Generated from protobuf field <code>string mutated_by = 2;</code>
+     * @return string
+     */
+    public function getMutatedBy()
+    {
+        return $this->mutated_by;
+    }
+
+    /**
+     * The email address of the user making the change.
+     *
+     * Generated from protobuf field <code>string mutated_by = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setMutatedBy($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->mutated_by = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/NotificationChannel.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/NotificationChannel.php
new file mode 100644
index 000000000000..a68ec145b595
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/NotificationChannel.php
@@ -0,0 +1,594 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/notification.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A `NotificationChannel` is a medium through which an alert is
+ * delivered when a policy violation is detected. Examples of channels
+ * include email, SMS, and third-party messaging applications. Fields
+ * containing sensitive information like authentication tokens or
+ * contact info are only partially populated on retrieval.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.NotificationChannel</code>
+ */
+class NotificationChannel extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The type of the notification channel. This field matches the
+     * value of the
+     * [NotificationChannelDescriptor.type][google.monitoring.v3.NotificationChannelDescriptor.type]
+     * field.
+     *
+     * Generated from protobuf field <code>string type = 1;</code>
+     */
+    protected $type = '';
+    /**
+     * Identifier. The full REST resource name for this channel. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/notificationChannels/[CHANNEL_ID]
+     * The `[CHANNEL_ID]` is automatically assigned by the server on creation.
+     *
+     * Generated from protobuf field <code>string name = 6 [(.google.api.field_behavior) = IDENTIFIER];</code>
+     */
+    protected $name = '';
+    /**
+     * An optional human-readable name for this notification channel. It is
+     * recommended that you specify a non-empty and unique name in order to
+     * make it easier to identify the channels in your project, though this is
+     * not enforced. The display name is limited to 512 Unicode characters.
+     *
+     * Generated from protobuf field <code>string display_name = 3;</code>
+     */
+    protected $display_name = '';
+    /**
+     * An optional human-readable description of this notification channel. This
+     * description may provide additional details, beyond the display
+     * name, for the channel. This may not exceed 1024 Unicode characters.
+     *
+     * Generated from protobuf field <code>string description = 4;</code>
+     */
+    protected $description = '';
+    /**
+     * Configuration fields that define the channel and its behavior. The
+     * permissible and required labels are specified in the
+     * [NotificationChannelDescriptor.labels][google.monitoring.v3.NotificationChannelDescriptor.labels]
+     * of the `NotificationChannelDescriptor` corresponding to the `type` field.
+     *
+     * Generated from protobuf field <code>map<string, string> labels = 5;</code>
+     */
+    private $labels;
+    /**
+     * User-supplied key/value data that does not need to conform to
+     * the corresponding `NotificationChannelDescriptor`'s schema, unlike
+     * the `labels` field. This field is intended to be used for organizing
+     * and identifying the `NotificationChannel` objects.
+     * The field can contain up to 64 entries. Each key and value is limited to
+     * 63 Unicode characters or 128 bytes, whichever is smaller. Labels and
+     * values can contain only lowercase letters, numerals, underscores, and
+     * dashes. Keys must begin with a letter.
+     *
+     * Generated from protobuf field <code>map<string, string> user_labels = 8;</code>
+     */
+    private $user_labels;
+    /**
+     * Indicates whether this channel has been verified or not. On a
+     * [`ListNotificationChannels`][google.monitoring.v3.NotificationChannelService.ListNotificationChannels]
+     * or
+     * [`GetNotificationChannel`][google.monitoring.v3.NotificationChannelService.GetNotificationChannel]
+     * operation, this field is expected to be populated.
+     * If the value is `UNVERIFIED`, then it indicates that the channel is
+     * non-functioning (it both requires verification and lacks verification);
+     * otherwise, it is assumed that the channel works.
+     * If the channel is neither `VERIFIED` nor `UNVERIFIED`, it implies that
+     * the channel is of a type that does not require verification or that
+     * this specific channel has been exempted from verification because it was
+     * created prior to verification being required for channels of this type.
+     * This field cannot be modified using a standard
+     * [`UpdateNotificationChannel`][google.monitoring.v3.NotificationChannelService.UpdateNotificationChannel]
+     * operation. To change the value of this field, you must call
+     * [`VerifyNotificationChannel`][google.monitoring.v3.NotificationChannelService.VerifyNotificationChannel].
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.NotificationChannel.VerificationStatus verification_status = 9;</code>
+     */
+    protected $verification_status = 0;
+    /**
+     * Whether notifications are forwarded to the described channel. This makes
+     * it possible to disable delivery of notifications to a particular channel
+     * without removing the channel from all alerting policies that reference
+     * the channel. This is a more convenient approach when the change is
+     * temporary and you want to receive notifications from the same set
+     * of alerting policies on the channel at some point in the future.
+     *
+     * Generated from protobuf field <code>.google.protobuf.BoolValue enabled = 11;</code>
+     */
+    protected $enabled = null;
+    /**
+     * Record of the creation of this channel.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.MutationRecord creation_record = 12;</code>
+     */
+    protected $creation_record = null;
+    /**
+     * Records of the modification of this channel.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.MutationRecord mutation_records = 13;</code>
+     */
+    private $mutation_records;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $type
+     *           The type of the notification channel. This field matches the
+     *           value of the
+     *           [NotificationChannelDescriptor.type][google.monitoring.v3.NotificationChannelDescriptor.type]
+     *           field.
+     *     @type string $name
+     *           Identifier. The full REST resource name for this channel. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/notificationChannels/[CHANNEL_ID]
+     *           The `[CHANNEL_ID]` is automatically assigned by the server on creation.
+     *     @type string $display_name
+     *           An optional human-readable name for this notification channel. It is
+     *           recommended that you specify a non-empty and unique name in order to
+     *           make it easier to identify the channels in your project, though this is
+     *           not enforced. The display name is limited to 512 Unicode characters.
+     *     @type string $description
+     *           An optional human-readable description of this notification channel. This
+     *           description may provide additional details, beyond the display
+     *           name, for the channel. This may not exceed 1024 Unicode characters.
+     *     @type array|\Google\Protobuf\Internal\MapField $labels
+     *           Configuration fields that define the channel and its behavior. The
+     *           permissible and required labels are specified in the
+     *           [NotificationChannelDescriptor.labels][google.monitoring.v3.NotificationChannelDescriptor.labels]
+     *           of the `NotificationChannelDescriptor` corresponding to the `type` field.
+     *     @type array|\Google\Protobuf\Internal\MapField $user_labels
+     *           User-supplied key/value data that does not need to conform to
+     *           the corresponding `NotificationChannelDescriptor`'s schema, unlike
+     *           the `labels` field. This field is intended to be used for organizing
+     *           and identifying the `NotificationChannel` objects.
+     *           The field can contain up to 64 entries. Each key and value is limited to
+     *           63 Unicode characters or 128 bytes, whichever is smaller. Labels and
+     *           values can contain only lowercase letters, numerals, underscores, and
+     *           dashes. Keys must begin with a letter.
+     *     @type int $verification_status
+     *           Indicates whether this channel has been verified or not. On a
+     *           [`ListNotificationChannels`][google.monitoring.v3.NotificationChannelService.ListNotificationChannels]
+     *           or
+     *           [`GetNotificationChannel`][google.monitoring.v3.NotificationChannelService.GetNotificationChannel]
+     *           operation, this field is expected to be populated.
+     *           If the value is `UNVERIFIED`, then it indicates that the channel is
+     *           non-functioning (it both requires verification and lacks verification);
+     *           otherwise, it is assumed that the channel works.
+     *           If the channel is neither `VERIFIED` nor `UNVERIFIED`, it implies that
+     *           the channel is of a type that does not require verification or that
+     *           this specific channel has been exempted from verification because it was
+     *           created prior to verification being required for channels of this type.
+     *           This field cannot be modified using a standard
+     *           [`UpdateNotificationChannel`][google.monitoring.v3.NotificationChannelService.UpdateNotificationChannel]
+     *           operation. To change the value of this field, you must call
+     *           [`VerifyNotificationChannel`][google.monitoring.v3.NotificationChannelService.VerifyNotificationChannel].
+     *     @type \Google\Protobuf\BoolValue $enabled
+     *           Whether notifications are forwarded to the described channel. This makes
+     *           it possible to disable delivery of notifications to a particular channel
+     *           without removing the channel from all alerting policies that reference
+     *           the channel. This is a more convenient approach when the change is
+     *           temporary and you want to receive notifications from the same set
+     *           of alerting policies on the channel at some point in the future.
+     *     @type \Google\Cloud\Monitoring\V3\MutationRecord $creation_record
+     *           Record of the creation of this channel.
+     *     @type array<\Google\Cloud\Monitoring\V3\MutationRecord>|\Google\Protobuf\Internal\RepeatedField $mutation_records
+     *           Records of the modification of this channel.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Notification::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The type of the notification channel. This field matches the
+     * value of the
+     * [NotificationChannelDescriptor.type][google.monitoring.v3.NotificationChannelDescriptor.type]
+     * field.
+     *
+     * Generated from protobuf field <code>string type = 1;</code>
+     * @return string
+     */
+    public function getType()
+    {
+        return $this->type;
+    }
+
+    /**
+     * The type of the notification channel. This field matches the
+     * value of the
+     * [NotificationChannelDescriptor.type][google.monitoring.v3.NotificationChannelDescriptor.type]
+     * field.
+     *
+     * Generated from protobuf field <code>string type = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setType($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->type = $var;
+
+        return $this;
+    }
+
+    /**
+     * Identifier. The full REST resource name for this channel. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/notificationChannels/[CHANNEL_ID]
+     * The `[CHANNEL_ID]` is automatically assigned by the server on creation.
+     *
+     * Generated from protobuf field <code>string name = 6 [(.google.api.field_behavior) = IDENTIFIER];</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Identifier. The full REST resource name for this channel. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/notificationChannels/[CHANNEL_ID]
+     * The `[CHANNEL_ID]` is automatically assigned by the server on creation.
+     *
+     * Generated from protobuf field <code>string name = 6 [(.google.api.field_behavior) = IDENTIFIER];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * An optional human-readable name for this notification channel. It is
+     * recommended that you specify a non-empty and unique name in order to
+     * make it easier to identify the channels in your project, though this is
+     * not enforced. The display name is limited to 512 Unicode characters.
+     *
+     * Generated from protobuf field <code>string display_name = 3;</code>
+     * @return string
+     */
+    public function getDisplayName()
+    {
+        return $this->display_name;
+    }
+
+    /**
+     * An optional human-readable name for this notification channel. It is
+     * recommended that you specify a non-empty and unique name in order to
+     * make it easier to identify the channels in your project, though this is
+     * not enforced. The display name is limited to 512 Unicode characters.
+     *
+     * Generated from protobuf field <code>string display_name = 3;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setDisplayName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->display_name = $var;
+
+        return $this;
+    }
+
+    /**
+     * An optional human-readable description of this notification channel. This
+     * description may provide additional details, beyond the display
+     * name, for the channel. This may not exceed 1024 Unicode characters.
+     *
+     * Generated from protobuf field <code>string description = 4;</code>
+     * @return string
+     */
+    public function getDescription()
+    {
+        return $this->description;
+    }
+
+    /**
+     * An optional human-readable description of this notification channel. This
+     * description may provide additional details, beyond the display
+     * name, for the channel. This may not exceed 1024 Unicode characters.
+     *
+     * Generated from protobuf field <code>string description = 4;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setDescription($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->description = $var;
+
+        return $this;
+    }
+
+    /**
+     * Configuration fields that define the channel and its behavior. The
+     * permissible and required labels are specified in the
+     * [NotificationChannelDescriptor.labels][google.monitoring.v3.NotificationChannelDescriptor.labels]
+     * of the `NotificationChannelDescriptor` corresponding to the `type` field.
+     *
+     * Generated from protobuf field <code>map<string, string> labels = 5;</code>
+     * @return \Google\Protobuf\Internal\MapField
+     */
+    public function getLabels()
+    {
+        return $this->labels;
+    }
+
+    /**
+     * Configuration fields that define the channel and its behavior. The
+     * permissible and required labels are specified in the
+     * [NotificationChannelDescriptor.labels][google.monitoring.v3.NotificationChannelDescriptor.labels]
+     * of the `NotificationChannelDescriptor` corresponding to the `type` field.
+     *
+     * Generated from protobuf field <code>map<string, string> labels = 5;</code>
+     * @param array|\Google\Protobuf\Internal\MapField $var
+     * @return $this
+     */
+    public function setLabels($var)
+    {
+        $arr = GPBUtil::checkMapField($var, \Google\Protobuf\Internal\GPBType::STRING, \Google\Protobuf\Internal\GPBType::STRING);
+        $this->labels = $arr;
+
+        return $this;
+    }
+
+    /**
+     * User-supplied key/value data that does not need to conform to
+     * the corresponding `NotificationChannelDescriptor`'s schema, unlike
+     * the `labels` field. This field is intended to be used for organizing
+     * and identifying the `NotificationChannel` objects.
+     * The field can contain up to 64 entries. Each key and value is limited to
+     * 63 Unicode characters or 128 bytes, whichever is smaller. Labels and
+     * values can contain only lowercase letters, numerals, underscores, and
+     * dashes. Keys must begin with a letter.
+     *
+     * Generated from protobuf field <code>map<string, string> user_labels = 8;</code>
+     * @return \Google\Protobuf\Internal\MapField
+     */
+    public function getUserLabels()
+    {
+        return $this->user_labels;
+    }
+
+    /**
+     * User-supplied key/value data that does not need to conform to
+     * the corresponding `NotificationChannelDescriptor`'s schema, unlike
+     * the `labels` field. This field is intended to be used for organizing
+     * and identifying the `NotificationChannel` objects.
+     * The field can contain up to 64 entries. Each key and value is limited to
+     * 63 Unicode characters or 128 bytes, whichever is smaller. Labels and
+     * values can contain only lowercase letters, numerals, underscores, and
+     * dashes. Keys must begin with a letter.
+     *
+     * Generated from protobuf field <code>map<string, string> user_labels = 8;</code>
+     * @param array|\Google\Protobuf\Internal\MapField $var
+     * @return $this
+     */
+    public function setUserLabels($var)
+    {
+        $arr = GPBUtil::checkMapField($var, \Google\Protobuf\Internal\GPBType::STRING, \Google\Protobuf\Internal\GPBType::STRING);
+        $this->user_labels = $arr;
+
+        return $this;
+    }
+
+    /**
+     * Indicates whether this channel has been verified or not. On a
+     * [`ListNotificationChannels`][google.monitoring.v3.NotificationChannelService.ListNotificationChannels]
+     * or
+     * [`GetNotificationChannel`][google.monitoring.v3.NotificationChannelService.GetNotificationChannel]
+     * operation, this field is expected to be populated.
+     * If the value is `UNVERIFIED`, then it indicates that the channel is
+     * non-functioning (it both requires verification and lacks verification);
+     * otherwise, it is assumed that the channel works.
+     * If the channel is neither `VERIFIED` nor `UNVERIFIED`, it implies that
+     * the channel is of a type that does not require verification or that
+     * this specific channel has been exempted from verification because it was
+     * created prior to verification being required for channels of this type.
+     * This field cannot be modified using a standard
+     * [`UpdateNotificationChannel`][google.monitoring.v3.NotificationChannelService.UpdateNotificationChannel]
+     * operation. To change the value of this field, you must call
+     * [`VerifyNotificationChannel`][google.monitoring.v3.NotificationChannelService.VerifyNotificationChannel].
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.NotificationChannel.VerificationStatus verification_status = 9;</code>
+     * @return int
+     */
+    public function getVerificationStatus()
+    {
+        return $this->verification_status;
+    }
+
+    /**
+     * Indicates whether this channel has been verified or not. On a
+     * [`ListNotificationChannels`][google.monitoring.v3.NotificationChannelService.ListNotificationChannels]
+     * or
+     * [`GetNotificationChannel`][google.monitoring.v3.NotificationChannelService.GetNotificationChannel]
+     * operation, this field is expected to be populated.
+     * If the value is `UNVERIFIED`, then it indicates that the channel is
+     * non-functioning (it both requires verification and lacks verification);
+     * otherwise, it is assumed that the channel works.
+     * If the channel is neither `VERIFIED` nor `UNVERIFIED`, it implies that
+     * the channel is of a type that does not require verification or that
+     * this specific channel has been exempted from verification because it was
+     * created prior to verification being required for channels of this type.
+     * This field cannot be modified using a standard
+     * [`UpdateNotificationChannel`][google.monitoring.v3.NotificationChannelService.UpdateNotificationChannel]
+     * operation. To change the value of this field, you must call
+     * [`VerifyNotificationChannel`][google.monitoring.v3.NotificationChannelService.VerifyNotificationChannel].
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.NotificationChannel.VerificationStatus verification_status = 9;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setVerificationStatus($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Cloud\Monitoring\V3\NotificationChannel\VerificationStatus::class);
+        $this->verification_status = $var;
+
+        return $this;
+    }
+
+    /**
+     * Whether notifications are forwarded to the described channel. This makes
+     * it possible to disable delivery of notifications to a particular channel
+     * without removing the channel from all alerting policies that reference
+     * the channel. This is a more convenient approach when the change is
+     * temporary and you want to receive notifications from the same set
+     * of alerting policies on the channel at some point in the future.
+     *
+     * Generated from protobuf field <code>.google.protobuf.BoolValue enabled = 11;</code>
+     * @return \Google\Protobuf\BoolValue|null
+     */
+    public function getEnabled()
+    {
+        return $this->enabled;
+    }
+
+    public function hasEnabled()
+    {
+        return isset($this->enabled);
+    }
+
+    public function clearEnabled()
+    {
+        unset($this->enabled);
+    }
+
+    /**
+     * Returns the unboxed value from <code>getEnabled()</code>
+
+     * Whether notifications are forwarded to the described channel. This makes
+     * it possible to disable delivery of notifications to a particular channel
+     * without removing the channel from all alerting policies that reference
+     * the channel. This is a more convenient approach when the change is
+     * temporary and you want to receive notifications from the same set
+     * of alerting policies on the channel at some point in the future.
+     *
+     * Generated from protobuf field <code>.google.protobuf.BoolValue enabled = 11;</code>
+     * @return bool|null
+     */
+    public function getEnabledUnwrapped()
+    {
+        return $this->readWrapperValue("enabled");
+    }
+
+    /**
+     * Whether notifications are forwarded to the described channel. This makes
+     * it possible to disable delivery of notifications to a particular channel
+     * without removing the channel from all alerting policies that reference
+     * the channel. This is a more convenient approach when the change is
+     * temporary and you want to receive notifications from the same set
+     * of alerting policies on the channel at some point in the future.
+     *
+     * Generated from protobuf field <code>.google.protobuf.BoolValue enabled = 11;</code>
+     * @param \Google\Protobuf\BoolValue $var
+     * @return $this
+     */
+    public function setEnabled($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\BoolValue::class);
+        $this->enabled = $var;
+
+        return $this;
+    }
+
+    /**
+     * Sets the field by wrapping a primitive type in a Google\Protobuf\BoolValue object.
+
+     * Whether notifications are forwarded to the described channel. This makes
+     * it possible to disable delivery of notifications to a particular channel
+     * without removing the channel from all alerting policies that reference
+     * the channel. This is a more convenient approach when the change is
+     * temporary and you want to receive notifications from the same set
+     * of alerting policies on the channel at some point in the future.
+     *
+     * Generated from protobuf field <code>.google.protobuf.BoolValue enabled = 11;</code>
+     * @param bool|null $var
+     * @return $this
+     */
+    public function setEnabledUnwrapped($var)
+    {
+        $this->writeWrapperValue("enabled", $var);
+        return $this;}
+
+    /**
+     * Record of the creation of this channel.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.MutationRecord creation_record = 12;</code>
+     * @return \Google\Cloud\Monitoring\V3\MutationRecord|null
+     */
+    public function getCreationRecord()
+    {
+        return $this->creation_record;
+    }
+
+    public function hasCreationRecord()
+    {
+        return isset($this->creation_record);
+    }
+
+    public function clearCreationRecord()
+    {
+        unset($this->creation_record);
+    }
+
+    /**
+     * Record of the creation of this channel.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.MutationRecord creation_record = 12;</code>
+     * @param \Google\Cloud\Monitoring\V3\MutationRecord $var
+     * @return $this
+     */
+    public function setCreationRecord($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\MutationRecord::class);
+        $this->creation_record = $var;
+
+        return $this;
+    }
+
+    /**
+     * Records of the modification of this channel.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.MutationRecord mutation_records = 13;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getMutationRecords()
+    {
+        return $this->mutation_records;
+    }
+
+    /**
+     * Records of the modification of this channel.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.MutationRecord mutation_records = 13;</code>
+     * @param array<\Google\Cloud\Monitoring\V3\MutationRecord>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setMutationRecords($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\MutationRecord::class);
+        $this->mutation_records = $arr;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/NotificationChannel/VerificationStatus.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/NotificationChannel/VerificationStatus.php
new file mode 100644
index 000000000000..2b70fa842873
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/NotificationChannel/VerificationStatus.php
@@ -0,0 +1,76 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/notification.proto
+
+namespace Google\Cloud\Monitoring\V3\NotificationChannel;
+
+use UnexpectedValueException;
+
+/**
+ * Indicates whether the channel has been verified or not. It is illegal
+ * to specify this field in a
+ * [`CreateNotificationChannel`][google.monitoring.v3.NotificationChannelService.CreateNotificationChannel]
+ * or an
+ * [`UpdateNotificationChannel`][google.monitoring.v3.NotificationChannelService.UpdateNotificationChannel]
+ * operation.
+ *
+ * Protobuf type <code>google.monitoring.v3.NotificationChannel.VerificationStatus</code>
+ */
+class VerificationStatus
+{
+    /**
+     * Sentinel value used to indicate that the state is unknown, omitted, or
+     * is not applicable (as in the case of channels that neither support
+     * nor require verification in order to function).
+     *
+     * Generated from protobuf enum <code>VERIFICATION_STATUS_UNSPECIFIED = 0;</code>
+     */
+    const VERIFICATION_STATUS_UNSPECIFIED = 0;
+    /**
+     * The channel has yet to be verified and requires verification to function.
+     * Note that this state also applies to the case where the verification
+     * process has been initiated by sending a verification code but where
+     * the verification code has not been submitted to complete the process.
+     *
+     * Generated from protobuf enum <code>UNVERIFIED = 1;</code>
+     */
+    const UNVERIFIED = 1;
+    /**
+     * It has been proven that notifications can be received on this
+     * notification channel and that someone on the project has access
+     * to messages that are delivered to that channel.
+     *
+     * Generated from protobuf enum <code>VERIFIED = 2;</code>
+     */
+    const VERIFIED = 2;
+
+    private static $valueToName = [
+        self::VERIFICATION_STATUS_UNSPECIFIED => 'VERIFICATION_STATUS_UNSPECIFIED',
+        self::UNVERIFIED => 'UNVERIFIED',
+        self::VERIFIED => 'VERIFIED',
+    ];
+
+    public static function name($value)
+    {
+        if (!isset(self::$valueToName[$value])) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no name defined for value %s', __CLASS__, $value));
+        }
+        return self::$valueToName[$value];
+    }
+
+
+    public static function value($name)
+    {
+        $const = __CLASS__ . '::' . strtoupper($name);
+        if (!defined($const)) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no value defined for name %s', __CLASS__, $name));
+        }
+        return constant($const);
+    }
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(VerificationStatus::class, \Google\Cloud\Monitoring\V3\NotificationChannel_VerificationStatus::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/NotificationChannelDescriptor.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/NotificationChannelDescriptor.php
new file mode 100644
index 000000000000..f9e6c8c27145
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/NotificationChannelDescriptor.php
@@ -0,0 +1,326 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/notification.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A description of a notification channel. The descriptor includes
+ * the properties of the channel and the set of labels or fields that
+ * must be specified to configure channels of a given type.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.NotificationChannelDescriptor</code>
+ */
+class NotificationChannelDescriptor extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The full REST resource name for this descriptor. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/notificationChannelDescriptors/[TYPE]
+     * In the above, `[TYPE]` is the value of the `type` field.
+     *
+     * Generated from protobuf field <code>string name = 6;</code>
+     */
+    protected $name = '';
+    /**
+     * The type of notification channel, such as "email" and "sms". To view the
+     * full list of channels, see
+     * [Channel
+     * descriptors](https://cloud.google.com/monitoring/alerts/using-channels-api#ncd).
+     * Notification channel types are globally unique.
+     *
+     * Generated from protobuf field <code>string type = 1;</code>
+     */
+    protected $type = '';
+    /**
+     * A human-readable name for the notification channel type.  This
+     * form of the name is suitable for a user interface.
+     *
+     * Generated from protobuf field <code>string display_name = 2;</code>
+     */
+    protected $display_name = '';
+    /**
+     * A human-readable description of the notification channel
+     * type. The description may include a description of the properties
+     * of the channel and pointers to external documentation.
+     *
+     * Generated from protobuf field <code>string description = 3;</code>
+     */
+    protected $description = '';
+    /**
+     * The set of labels that must be defined to identify a particular
+     * channel of the corresponding type. Each label includes a
+     * description for how that field should be populated.
+     *
+     * Generated from protobuf field <code>repeated .google.api.LabelDescriptor labels = 4;</code>
+     */
+    private $labels;
+    /**
+     * The tiers that support this notification channel; the project service tier
+     * must be one of the supported_tiers.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.ServiceTier supported_tiers = 5 [deprecated = true];</code>
+     * @deprecated
+     */
+    private $supported_tiers;
+    /**
+     * The product launch stage for channels of this type.
+     *
+     * Generated from protobuf field <code>.google.api.LaunchStage launch_stage = 7;</code>
+     */
+    protected $launch_stage = 0;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           The full REST resource name for this descriptor. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/notificationChannelDescriptors/[TYPE]
+     *           In the above, `[TYPE]` is the value of the `type` field.
+     *     @type string $type
+     *           The type of notification channel, such as "email" and "sms". To view the
+     *           full list of channels, see
+     *           [Channel
+     *           descriptors](https://cloud.google.com/monitoring/alerts/using-channels-api#ncd).
+     *           Notification channel types are globally unique.
+     *     @type string $display_name
+     *           A human-readable name for the notification channel type.  This
+     *           form of the name is suitable for a user interface.
+     *     @type string $description
+     *           A human-readable description of the notification channel
+     *           type. The description may include a description of the properties
+     *           of the channel and pointers to external documentation.
+     *     @type array<\Google\Api\LabelDescriptor>|\Google\Protobuf\Internal\RepeatedField $labels
+     *           The set of labels that must be defined to identify a particular
+     *           channel of the corresponding type. Each label includes a
+     *           description for how that field should be populated.
+     *     @type array<int>|\Google\Protobuf\Internal\RepeatedField $supported_tiers
+     *           The tiers that support this notification channel; the project service tier
+     *           must be one of the supported_tiers.
+     *     @type int $launch_stage
+     *           The product launch stage for channels of this type.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Notification::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The full REST resource name for this descriptor. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/notificationChannelDescriptors/[TYPE]
+     * In the above, `[TYPE]` is the value of the `type` field.
+     *
+     * Generated from protobuf field <code>string name = 6;</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * The full REST resource name for this descriptor. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/notificationChannelDescriptors/[TYPE]
+     * In the above, `[TYPE]` is the value of the `type` field.
+     *
+     * Generated from protobuf field <code>string name = 6;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * The type of notification channel, such as "email" and "sms". To view the
+     * full list of channels, see
+     * [Channel
+     * descriptors](https://cloud.google.com/monitoring/alerts/using-channels-api#ncd).
+     * Notification channel types are globally unique.
+     *
+     * Generated from protobuf field <code>string type = 1;</code>
+     * @return string
+     */
+    public function getType()
+    {
+        return $this->type;
+    }
+
+    /**
+     * The type of notification channel, such as "email" and "sms". To view the
+     * full list of channels, see
+     * [Channel
+     * descriptors](https://cloud.google.com/monitoring/alerts/using-channels-api#ncd).
+     * Notification channel types are globally unique.
+     *
+     * Generated from protobuf field <code>string type = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setType($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->type = $var;
+
+        return $this;
+    }
+
+    /**
+     * A human-readable name for the notification channel type.  This
+     * form of the name is suitable for a user interface.
+     *
+     * Generated from protobuf field <code>string display_name = 2;</code>
+     * @return string
+     */
+    public function getDisplayName()
+    {
+        return $this->display_name;
+    }
+
+    /**
+     * A human-readable name for the notification channel type.  This
+     * form of the name is suitable for a user interface.
+     *
+     * Generated from protobuf field <code>string display_name = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setDisplayName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->display_name = $var;
+
+        return $this;
+    }
+
+    /**
+     * A human-readable description of the notification channel
+     * type. The description may include a description of the properties
+     * of the channel and pointers to external documentation.
+     *
+     * Generated from protobuf field <code>string description = 3;</code>
+     * @return string
+     */
+    public function getDescription()
+    {
+        return $this->description;
+    }
+
+    /**
+     * A human-readable description of the notification channel
+     * type. The description may include a description of the properties
+     * of the channel and pointers to external documentation.
+     *
+     * Generated from protobuf field <code>string description = 3;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setDescription($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->description = $var;
+
+        return $this;
+    }
+
+    /**
+     * The set of labels that must be defined to identify a particular
+     * channel of the corresponding type. Each label includes a
+     * description for how that field should be populated.
+     *
+     * Generated from protobuf field <code>repeated .google.api.LabelDescriptor labels = 4;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getLabels()
+    {
+        return $this->labels;
+    }
+
+    /**
+     * The set of labels that must be defined to identify a particular
+     * channel of the corresponding type. Each label includes a
+     * description for how that field should be populated.
+     *
+     * Generated from protobuf field <code>repeated .google.api.LabelDescriptor labels = 4;</code>
+     * @param array<\Google\Api\LabelDescriptor>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setLabels($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Api\LabelDescriptor::class);
+        $this->labels = $arr;
+
+        return $this;
+    }
+
+    /**
+     * The tiers that support this notification channel; the project service tier
+     * must be one of the supported_tiers.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.ServiceTier supported_tiers = 5 [deprecated = true];</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     * @deprecated
+     */
+    public function getSupportedTiers()
+    {
+        @trigger_error('supported_tiers is deprecated.', E_USER_DEPRECATED);
+        return $this->supported_tiers;
+    }
+
+    /**
+     * The tiers that support this notification channel; the project service tier
+     * must be one of the supported_tiers.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.ServiceTier supported_tiers = 5 [deprecated = true];</code>
+     * @param array<int>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     * @deprecated
+     */
+    public function setSupportedTiers($var)
+    {
+        @trigger_error('supported_tiers is deprecated.', E_USER_DEPRECATED);
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::ENUM, \Google\Cloud\Monitoring\V3\ServiceTier::class);
+        $this->supported_tiers = $arr;
+
+        return $this;
+    }
+
+    /**
+     * The product launch stage for channels of this type.
+     *
+     * Generated from protobuf field <code>.google.api.LaunchStage launch_stage = 7;</code>
+     * @return int
+     */
+    public function getLaunchStage()
+    {
+        return $this->launch_stage;
+    }
+
+    /**
+     * The product launch stage for channels of this type.
+     *
+     * Generated from protobuf field <code>.google.api.LaunchStage launch_stage = 7;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setLaunchStage($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Api\LaunchStage::class);
+        $this->launch_stage = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Point.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Point.php
new file mode 100644
index 000000000000..5db4ed6c5b78
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Point.php
@@ -0,0 +1,153 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A single data point in a time series.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.Point</code>
+ */
+class Point extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The time interval to which the data point applies.  For `GAUGE` metrics,
+     * the start time is optional, but if it is supplied, it must equal the
+     * end time.  For `DELTA` metrics, the start
+     * and end time should specify a non-zero interval, with subsequent points
+     * specifying contiguous and non-overlapping intervals.  For `CUMULATIVE`
+     * metrics, the start and end time should specify a non-zero interval, with
+     * subsequent points specifying the same start time and increasing end times,
+     * until an event resets the cumulative value to zero and sets a new start
+     * time for the following points.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TimeInterval interval = 1;</code>
+     */
+    protected $interval = null;
+    /**
+     * The value of the data point.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TypedValue value = 2;</code>
+     */
+    protected $value = null;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type \Google\Cloud\Monitoring\V3\TimeInterval $interval
+     *           The time interval to which the data point applies.  For `GAUGE` metrics,
+     *           the start time is optional, but if it is supplied, it must equal the
+     *           end time.  For `DELTA` metrics, the start
+     *           and end time should specify a non-zero interval, with subsequent points
+     *           specifying contiguous and non-overlapping intervals.  For `CUMULATIVE`
+     *           metrics, the start and end time should specify a non-zero interval, with
+     *           subsequent points specifying the same start time and increasing end times,
+     *           until an event resets the cumulative value to zero and sets a new start
+     *           time for the following points.
+     *     @type \Google\Cloud\Monitoring\V3\TypedValue $value
+     *           The value of the data point.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Metric::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The time interval to which the data point applies.  For `GAUGE` metrics,
+     * the start time is optional, but if it is supplied, it must equal the
+     * end time.  For `DELTA` metrics, the start
+     * and end time should specify a non-zero interval, with subsequent points
+     * specifying contiguous and non-overlapping intervals.  For `CUMULATIVE`
+     * metrics, the start and end time should specify a non-zero interval, with
+     * subsequent points specifying the same start time and increasing end times,
+     * until an event resets the cumulative value to zero and sets a new start
+     * time for the following points.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TimeInterval interval = 1;</code>
+     * @return \Google\Cloud\Monitoring\V3\TimeInterval|null
+     */
+    public function getInterval()
+    {
+        return $this->interval;
+    }
+
+    public function hasInterval()
+    {
+        return isset($this->interval);
+    }
+
+    public function clearInterval()
+    {
+        unset($this->interval);
+    }
+
+    /**
+     * The time interval to which the data point applies.  For `GAUGE` metrics,
+     * the start time is optional, but if it is supplied, it must equal the
+     * end time.  For `DELTA` metrics, the start
+     * and end time should specify a non-zero interval, with subsequent points
+     * specifying contiguous and non-overlapping intervals.  For `CUMULATIVE`
+     * metrics, the start and end time should specify a non-zero interval, with
+     * subsequent points specifying the same start time and increasing end times,
+     * until an event resets the cumulative value to zero and sets a new start
+     * time for the following points.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TimeInterval interval = 1;</code>
+     * @param \Google\Cloud\Monitoring\V3\TimeInterval $var
+     * @return $this
+     */
+    public function setInterval($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\TimeInterval::class);
+        $this->interval = $var;
+
+        return $this;
+    }
+
+    /**
+     * The value of the data point.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TypedValue value = 2;</code>
+     * @return \Google\Cloud\Monitoring\V3\TypedValue|null
+     */
+    public function getValue()
+    {
+        return $this->value;
+    }
+
+    public function hasValue()
+    {
+        return isset($this->value);
+    }
+
+    public function clearValue()
+    {
+        unset($this->value);
+    }
+
+    /**
+     * The value of the data point.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TypedValue value = 2;</code>
+     * @param \Google\Cloud\Monitoring\V3\TypedValue $var
+     * @return $this
+     */
+    public function setValue($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\TypedValue::class);
+        $this->value = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/QueryError.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/QueryError.php
new file mode 100644
index 000000000000..8ff8ad79a2a5
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/QueryError.php
@@ -0,0 +1,115 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * An error associated with a query in the time series query language format.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.QueryError</code>
+ */
+class QueryError extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The location of the time series query language text that this error applies
+     * to.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TextLocator locator = 1;</code>
+     */
+    protected $locator = null;
+    /**
+     * The error message.
+     *
+     * Generated from protobuf field <code>string message = 2;</code>
+     */
+    protected $message = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type \Google\Cloud\Monitoring\V3\TextLocator $locator
+     *           The location of the time series query language text that this error applies
+     *           to.
+     *     @type string $message
+     *           The error message.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Metric::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The location of the time series query language text that this error applies
+     * to.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TextLocator locator = 1;</code>
+     * @return \Google\Cloud\Monitoring\V3\TextLocator|null
+     */
+    public function getLocator()
+    {
+        return $this->locator;
+    }
+
+    public function hasLocator()
+    {
+        return isset($this->locator);
+    }
+
+    public function clearLocator()
+    {
+        unset($this->locator);
+    }
+
+    /**
+     * The location of the time series query language text that this error applies
+     * to.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TextLocator locator = 1;</code>
+     * @param \Google\Cloud\Monitoring\V3\TextLocator $var
+     * @return $this
+     */
+    public function setLocator($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\TextLocator::class);
+        $this->locator = $var;
+
+        return $this;
+    }
+
+    /**
+     * The error message.
+     *
+     * Generated from protobuf field <code>string message = 2;</code>
+     * @return string
+     */
+    public function getMessage()
+    {
+        return $this->message;
+    }
+
+    /**
+     * The error message.
+     *
+     * Generated from protobuf field <code>string message = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setMessage($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->message = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/QueryErrorList.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/QueryErrorList.php
new file mode 100644
index 000000000000..95542afd49b9
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/QueryErrorList.php
@@ -0,0 +1,105 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * This is an error detail intended to be used with INVALID_ARGUMENT errors.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.QueryErrorList</code>
+ */
+class QueryErrorList extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Errors in parsing the time series query language text. The number of errors
+     * in the response may be limited.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.QueryError errors = 1;</code>
+     */
+    private $errors;
+    /**
+     * A summary of all the errors.
+     *
+     * Generated from protobuf field <code>string error_summary = 2;</code>
+     */
+    protected $error_summary = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type array<\Google\Cloud\Monitoring\V3\QueryError>|\Google\Protobuf\Internal\RepeatedField $errors
+     *           Errors in parsing the time series query language text. The number of errors
+     *           in the response may be limited.
+     *     @type string $error_summary
+     *           A summary of all the errors.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\MetricService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Errors in parsing the time series query language text. The number of errors
+     * in the response may be limited.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.QueryError errors = 1;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getErrors()
+    {
+        return $this->errors;
+    }
+
+    /**
+     * Errors in parsing the time series query language text. The number of errors
+     * in the response may be limited.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.QueryError errors = 1;</code>
+     * @param array<\Google\Cloud\Monitoring\V3\QueryError>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setErrors($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\QueryError::class);
+        $this->errors = $arr;
+
+        return $this;
+    }
+
+    /**
+     * A summary of all the errors.
+     *
+     * Generated from protobuf field <code>string error_summary = 2;</code>
+     * @return string
+     */
+    public function getErrorSummary()
+    {
+        return $this->error_summary;
+    }
+
+    /**
+     * A summary of all the errors.
+     *
+     * Generated from protobuf field <code>string error_summary = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setErrorSummary($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->error_summary = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/QueryTimeSeriesRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/QueryTimeSeriesRequest.php
new file mode 100644
index 000000000000..2c29945f9c37
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/QueryTimeSeriesRequest.php
@@ -0,0 +1,200 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `QueryTimeSeries` request. For information about the status of
+ * Monitoring Query Language (MQL), see the [MQL deprecation
+ * notice](https://cloud.google.com/stackdriver/docs/deprecations/mql).
+ *
+ * @deprecated
+ * Generated from protobuf message <code>google.monitoring.v3.QueryTimeSeriesRequest</code>
+ */
+class QueryTimeSeriesRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     * to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $name = '';
+    /**
+     * Required. The query in the [Monitoring Query
+     * Language](https://cloud.google.com/monitoring/mql/reference) format.
+     * The default time zone is in UTC.
+     *
+     * Generated from protobuf field <code>string query = 7 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $query = '';
+    /**
+     * A positive number that is the maximum number of time_series_data to return.
+     *
+     * Generated from protobuf field <code>int32 page_size = 9;</code>
+     */
+    protected $page_size = 0;
+    /**
+     * If this field is not empty then it must contain the `nextPageToken` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return additional results from the previous method call.
+     *
+     * Generated from protobuf field <code>string page_token = 10;</code>
+     */
+    protected $page_token = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The
+     *           [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     *           to execute the request. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]
+     *     @type string $query
+     *           Required. The query in the [Monitoring Query
+     *           Language](https://cloud.google.com/monitoring/mql/reference) format.
+     *           The default time zone is in UTC.
+     *     @type int $page_size
+     *           A positive number that is the maximum number of time_series_data to return.
+     *     @type string $page_token
+     *           If this field is not empty then it must contain the `nextPageToken` value
+     *           returned by a previous call to this method.  Using this field causes the
+     *           method to return additional results from the previous method call.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\MetricService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     * to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The
+     * [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     * to execute the request. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * Required. The query in the [Monitoring Query
+     * Language](https://cloud.google.com/monitoring/mql/reference) format.
+     * The default time zone is in UTC.
+     *
+     * Generated from protobuf field <code>string query = 7 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return string
+     */
+    public function getQuery()
+    {
+        return $this->query;
+    }
+
+    /**
+     * Required. The query in the [Monitoring Query
+     * Language](https://cloud.google.com/monitoring/mql/reference) format.
+     * The default time zone is in UTC.
+     *
+     * Generated from protobuf field <code>string query = 7 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setQuery($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->query = $var;
+
+        return $this;
+    }
+
+    /**
+     * A positive number that is the maximum number of time_series_data to return.
+     *
+     * Generated from protobuf field <code>int32 page_size = 9;</code>
+     * @return int
+     */
+    public function getPageSize()
+    {
+        return $this->page_size;
+    }
+
+    /**
+     * A positive number that is the maximum number of time_series_data to return.
+     *
+     * Generated from protobuf field <code>int32 page_size = 9;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setPageSize($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->page_size = $var;
+
+        return $this;
+    }
+
+    /**
+     * If this field is not empty then it must contain the `nextPageToken` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return additional results from the previous method call.
+     *
+     * Generated from protobuf field <code>string page_token = 10;</code>
+     * @return string
+     */
+    public function getPageToken()
+    {
+        return $this->page_token;
+    }
+
+    /**
+     * If this field is not empty then it must contain the `nextPageToken` value
+     * returned by a previous call to this method.  Using this field causes the
+     * method to return additional results from the previous method call.
+     *
+     * Generated from protobuf field <code>string page_token = 10;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->page_token = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/QueryTimeSeriesResponse.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/QueryTimeSeriesResponse.php
new file mode 100644
index 000000000000..fadd0f03899f
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/QueryTimeSeriesResponse.php
@@ -0,0 +1,198 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `QueryTimeSeries` response. For information about the status of
+ * Monitoring Query Language (MQL), see the [MQL deprecation
+ * notice](https://cloud.google.com/stackdriver/docs/deprecations/mql).
+ *
+ * @deprecated
+ * Generated from protobuf message <code>google.monitoring.v3.QueryTimeSeriesResponse</code>
+ */
+class QueryTimeSeriesResponse extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The descriptor for the time series data.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TimeSeriesDescriptor time_series_descriptor = 8;</code>
+     */
+    protected $time_series_descriptor = null;
+    /**
+     * The time series data.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.TimeSeriesData time_series_data = 9;</code>
+     */
+    private $time_series_data;
+    /**
+     * If there are more results than have been returned, then this field is set
+     * to a non-empty value.  To see the additional results, use that value as
+     * `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 10;</code>
+     */
+    protected $next_page_token = '';
+    /**
+     * Query execution errors that may have caused the time series data returned
+     * to be incomplete. The available data will be available in the
+     * response.
+     *
+     * Generated from protobuf field <code>repeated .google.rpc.Status partial_errors = 11;</code>
+     */
+    private $partial_errors;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type \Google\Cloud\Monitoring\V3\TimeSeriesDescriptor $time_series_descriptor
+     *           The descriptor for the time series data.
+     *     @type array<\Google\Cloud\Monitoring\V3\TimeSeriesData>|\Google\Protobuf\Internal\RepeatedField $time_series_data
+     *           The time series data.
+     *     @type string $next_page_token
+     *           If there are more results than have been returned, then this field is set
+     *           to a non-empty value.  To see the additional results, use that value as
+     *           `page_token` in the next call to this method.
+     *     @type array<\Google\Rpc\Status>|\Google\Protobuf\Internal\RepeatedField $partial_errors
+     *           Query execution errors that may have caused the time series data returned
+     *           to be incomplete. The available data will be available in the
+     *           response.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\MetricService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The descriptor for the time series data.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TimeSeriesDescriptor time_series_descriptor = 8;</code>
+     * @return \Google\Cloud\Monitoring\V3\TimeSeriesDescriptor|null
+     */
+    public function getTimeSeriesDescriptor()
+    {
+        return $this->time_series_descriptor;
+    }
+
+    public function hasTimeSeriesDescriptor()
+    {
+        return isset($this->time_series_descriptor);
+    }
+
+    public function clearTimeSeriesDescriptor()
+    {
+        unset($this->time_series_descriptor);
+    }
+
+    /**
+     * The descriptor for the time series data.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TimeSeriesDescriptor time_series_descriptor = 8;</code>
+     * @param \Google\Cloud\Monitoring\V3\TimeSeriesDescriptor $var
+     * @return $this
+     */
+    public function setTimeSeriesDescriptor($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\TimeSeriesDescriptor::class);
+        $this->time_series_descriptor = $var;
+
+        return $this;
+    }
+
+    /**
+     * The time series data.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.TimeSeriesData time_series_data = 9;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getTimeSeriesData()
+    {
+        return $this->time_series_data;
+    }
+
+    /**
+     * The time series data.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.TimeSeriesData time_series_data = 9;</code>
+     * @param array<\Google\Cloud\Monitoring\V3\TimeSeriesData>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setTimeSeriesData($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\TimeSeriesData::class);
+        $this->time_series_data = $arr;
+
+        return $this;
+    }
+
+    /**
+     * If there are more results than have been returned, then this field is set
+     * to a non-empty value.  To see the additional results, use that value as
+     * `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 10;</code>
+     * @return string
+     */
+    public function getNextPageToken()
+    {
+        return $this->next_page_token;
+    }
+
+    /**
+     * If there are more results than have been returned, then this field is set
+     * to a non-empty value.  To see the additional results, use that value as
+     * `page_token` in the next call to this method.
+     *
+     * Generated from protobuf field <code>string next_page_token = 10;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setNextPageToken($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->next_page_token = $var;
+
+        return $this;
+    }
+
+    /**
+     * Query execution errors that may have caused the time series data returned
+     * to be incomplete. The available data will be available in the
+     * response.
+     *
+     * Generated from protobuf field <code>repeated .google.rpc.Status partial_errors = 11;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getPartialErrors()
+    {
+        return $this->partial_errors;
+    }
+
+    /**
+     * Query execution errors that may have caused the time series data returned
+     * to be incomplete. The available data will be available in the
+     * response.
+     *
+     * Generated from protobuf field <code>repeated .google.rpc.Status partial_errors = 11;</code>
+     * @param array<\Google\Rpc\Status>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setPartialErrors($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Rpc\Status::class);
+        $this->partial_errors = $arr;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Range.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Range.php
new file mode 100644
index 000000000000..3dd0db9c39f2
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Range.php
@@ -0,0 +1,101 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Range of numerical values within `min` and `max`.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.Range</code>
+ */
+class Range extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Range minimum.
+     *
+     * Generated from protobuf field <code>double min = 1;</code>
+     */
+    protected $min = 0.0;
+    /**
+     * Range maximum.
+     *
+     * Generated from protobuf field <code>double max = 2;</code>
+     */
+    protected $max = 0.0;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type float $min
+     *           Range minimum.
+     *     @type float $max
+     *           Range maximum.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Service::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Range minimum.
+     *
+     * Generated from protobuf field <code>double min = 1;</code>
+     * @return float
+     */
+    public function getMin()
+    {
+        return $this->min;
+    }
+
+    /**
+     * Range minimum.
+     *
+     * Generated from protobuf field <code>double min = 1;</code>
+     * @param float $var
+     * @return $this
+     */
+    public function setMin($var)
+    {
+        GPBUtil::checkDouble($var);
+        $this->min = $var;
+
+        return $this;
+    }
+
+    /**
+     * Range maximum.
+     *
+     * Generated from protobuf field <code>double max = 2;</code>
+     * @return float
+     */
+    public function getMax()
+    {
+        return $this->max;
+    }
+
+    /**
+     * Range maximum.
+     *
+     * Generated from protobuf field <code>double max = 2;</code>
+     * @param float $var
+     * @return $this
+     */
+    public function setMax($var)
+    {
+        GPBUtil::checkDouble($var);
+        $this->max = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/RequestBasedSli.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/RequestBasedSli.php
new file mode 100644
index 000000000000..e4820f273c21
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/RequestBasedSli.php
@@ -0,0 +1,121 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Service Level Indicators for which atomic units of service are counted
+ * directly.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.RequestBasedSli</code>
+ */
+class RequestBasedSli extends \Google\Protobuf\Internal\Message
+{
+    protected $method;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type \Google\Cloud\Monitoring\V3\TimeSeriesRatio $good_total_ratio
+     *           `good_total_ratio` is used when the ratio of `good_service` to
+     *           `total_service` is computed from two `TimeSeries`.
+     *     @type \Google\Cloud\Monitoring\V3\DistributionCut $distribution_cut
+     *           `distribution_cut` is used when `good_service` is a count of values
+     *           aggregated in a `Distribution` that fall into a good range. The
+     *           `total_service` is the total count of all values aggregated in the
+     *           `Distribution`.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Service::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * `good_total_ratio` is used when the ratio of `good_service` to
+     * `total_service` is computed from two `TimeSeries`.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TimeSeriesRatio good_total_ratio = 1;</code>
+     * @return \Google\Cloud\Monitoring\V3\TimeSeriesRatio|null
+     */
+    public function getGoodTotalRatio()
+    {
+        return $this->readOneof(1);
+    }
+
+    public function hasGoodTotalRatio()
+    {
+        return $this->hasOneof(1);
+    }
+
+    /**
+     * `good_total_ratio` is used when the ratio of `good_service` to
+     * `total_service` is computed from two `TimeSeries`.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TimeSeriesRatio good_total_ratio = 1;</code>
+     * @param \Google\Cloud\Monitoring\V3\TimeSeriesRatio $var
+     * @return $this
+     */
+    public function setGoodTotalRatio($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\TimeSeriesRatio::class);
+        $this->writeOneof(1, $var);
+
+        return $this;
+    }
+
+    /**
+     * `distribution_cut` is used when `good_service` is a count of values
+     * aggregated in a `Distribution` that fall into a good range. The
+     * `total_service` is the total count of all values aggregated in the
+     * `Distribution`.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.DistributionCut distribution_cut = 3;</code>
+     * @return \Google\Cloud\Monitoring\V3\DistributionCut|null
+     */
+    public function getDistributionCut()
+    {
+        return $this->readOneof(3);
+    }
+
+    public function hasDistributionCut()
+    {
+        return $this->hasOneof(3);
+    }
+
+    /**
+     * `distribution_cut` is used when `good_service` is a count of values
+     * aggregated in a `Distribution` that fall into a good range. The
+     * `total_service` is the total count of all values aggregated in the
+     * `Distribution`.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.DistributionCut distribution_cut = 3;</code>
+     * @param \Google\Cloud\Monitoring\V3\DistributionCut $var
+     * @return $this
+     */
+    public function setDistributionCut($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\DistributionCut::class);
+        $this->writeOneof(3, $var);
+
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getMethod()
+    {
+        return $this->whichOneof("method");
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/SendNotificationChannelVerificationCodeRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/SendNotificationChannelVerificationCodeRequest.php
new file mode 100644
index 000000000000..efa0e97e35bc
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/SendNotificationChannelVerificationCodeRequest.php
@@ -0,0 +1,81 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/notification_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `SendNotificationChannelVerificationCode` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.SendNotificationChannelVerificationCodeRequest</code>
+ */
+class SendNotificationChannelVerificationCodeRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The notification channel to which to send a verification code.
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+
+    /**
+     * @param string $name Required. The notification channel to which to send a verification code. Please see
+     *                     {@see NotificationChannelServiceClient::notificationChannelName()} for help formatting this field.
+     *
+     * @return \Google\Cloud\Monitoring\V3\SendNotificationChannelVerificationCodeRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name): self
+    {
+        return (new self())
+            ->setName($name);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The notification channel to which to send a verification code.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\NotificationService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The notification channel to which to send a verification code.
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The notification channel to which to send a verification code.
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service.php
new file mode 100644
index 000000000000..8b8aa5f3c2fe
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service.php
@@ -0,0 +1,608 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A `Service` is a discrete, autonomous, and network-accessible unit, designed
+ * to solve an individual concern
+ * ([Wikipedia](https://en.wikipedia.org/wiki/Service-orientation)). In
+ * Cloud Monitoring, a `Service` acts as the root resource under which
+ * operational aspects of the service are accessible.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.Service</code>
+ */
+class Service extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Identifier. Resource name for this Service. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = IDENTIFIER];</code>
+     */
+    protected $name = '';
+    /**
+     * Name used for UI elements listing this Service.
+     *
+     * Generated from protobuf field <code>string display_name = 2;</code>
+     */
+    protected $display_name = '';
+    /**
+     * Message that contains the service type and service labels of this service
+     * if it is a basic service.
+     * Documentation and examples
+     * [here](https://cloud.google.com/stackdriver/docs/solutions/slo-monitoring/api/api-structures#basic-svc-w-basic-sli).
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service.BasicService basic_service = 19;</code>
+     */
+    protected $basic_service = null;
+    /**
+     * Configuration for how to query telemetry on a Service.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service.Telemetry telemetry = 13;</code>
+     */
+    protected $telemetry = null;
+    /**
+     * Labels which have been used to annotate the service. Label keys must start
+     * with a letter. Label keys and values may contain lowercase letters,
+     * numbers, underscores, and dashes. Label keys and values have a maximum
+     * length of 63 characters, and must be less than 128 bytes in size. Up to 64
+     * label entries may be stored. For labels which do not have a semantic value,
+     * the empty string may be supplied for the label value.
+     *
+     * Generated from protobuf field <code>map<string, string> user_labels = 14;</code>
+     */
+    private $user_labels;
+    protected $identifier;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Identifier. Resource name for this Service. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     *     @type string $display_name
+     *           Name used for UI elements listing this Service.
+     *     @type \Google\Cloud\Monitoring\V3\Service\Custom $custom
+     *           Custom service type.
+     *     @type \Google\Cloud\Monitoring\V3\Service\AppEngine $app_engine
+     *           Type used for App Engine services.
+     *     @type \Google\Cloud\Monitoring\V3\Service\CloudEndpoints $cloud_endpoints
+     *           Type used for Cloud Endpoints services.
+     *     @type \Google\Cloud\Monitoring\V3\Service\ClusterIstio $cluster_istio
+     *           Type used for Istio services that live in a Kubernetes cluster.
+     *     @type \Google\Cloud\Monitoring\V3\Service\MeshIstio $mesh_istio
+     *           Type used for Istio services scoped to an Istio mesh.
+     *     @type \Google\Cloud\Monitoring\V3\Service\IstioCanonicalService $istio_canonical_service
+     *           Type used for canonical services scoped to an Istio mesh.
+     *           Metrics for Istio are
+     *           [documented here](https://istio.io/latest/docs/reference/config/metrics/)
+     *     @type \Google\Cloud\Monitoring\V3\Service\CloudRun $cloud_run
+     *           Type used for Cloud Run services.
+     *     @type \Google\Cloud\Monitoring\V3\Service\GkeNamespace $gke_namespace
+     *           Type used for GKE Namespaces.
+     *     @type \Google\Cloud\Monitoring\V3\Service\GkeWorkload $gke_workload
+     *           Type used for GKE Workloads.
+     *     @type \Google\Cloud\Monitoring\V3\Service\GkeService $gke_service
+     *           Type used for GKE Services (the Kubernetes concept of a service).
+     *     @type \Google\Cloud\Monitoring\V3\Service\BasicService $basic_service
+     *           Message that contains the service type and service labels of this service
+     *           if it is a basic service.
+     *           Documentation and examples
+     *           [here](https://cloud.google.com/stackdriver/docs/solutions/slo-monitoring/api/api-structures#basic-svc-w-basic-sli).
+     *     @type \Google\Cloud\Monitoring\V3\Service\Telemetry $telemetry
+     *           Configuration for how to query telemetry on a Service.
+     *     @type array|\Google\Protobuf\Internal\MapField $user_labels
+     *           Labels which have been used to annotate the service. Label keys must start
+     *           with a letter. Label keys and values may contain lowercase letters,
+     *           numbers, underscores, and dashes. Label keys and values have a maximum
+     *           length of 63 characters, and must be less than 128 bytes in size. Up to 64
+     *           label entries may be stored. For labels which do not have a semantic value,
+     *           the empty string may be supplied for the label value.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Service::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Identifier. Resource name for this Service. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = IDENTIFIER];</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Identifier. Resource name for this Service. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = IDENTIFIER];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * Name used for UI elements listing this Service.
+     *
+     * Generated from protobuf field <code>string display_name = 2;</code>
+     * @return string
+     */
+    public function getDisplayName()
+    {
+        return $this->display_name;
+    }
+
+    /**
+     * Name used for UI elements listing this Service.
+     *
+     * Generated from protobuf field <code>string display_name = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setDisplayName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->display_name = $var;
+
+        return $this;
+    }
+
+    /**
+     * Custom service type.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service.Custom custom = 6;</code>
+     * @return \Google\Cloud\Monitoring\V3\Service\Custom|null
+     */
+    public function getCustom()
+    {
+        return $this->readOneof(6);
+    }
+
+    public function hasCustom()
+    {
+        return $this->hasOneof(6);
+    }
+
+    /**
+     * Custom service type.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service.Custom custom = 6;</code>
+     * @param \Google\Cloud\Monitoring\V3\Service\Custom $var
+     * @return $this
+     */
+    public function setCustom($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\Service\Custom::class);
+        $this->writeOneof(6, $var);
+
+        return $this;
+    }
+
+    /**
+     * Type used for App Engine services.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service.AppEngine app_engine = 7;</code>
+     * @return \Google\Cloud\Monitoring\V3\Service\AppEngine|null
+     */
+    public function getAppEngine()
+    {
+        return $this->readOneof(7);
+    }
+
+    public function hasAppEngine()
+    {
+        return $this->hasOneof(7);
+    }
+
+    /**
+     * Type used for App Engine services.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service.AppEngine app_engine = 7;</code>
+     * @param \Google\Cloud\Monitoring\V3\Service\AppEngine $var
+     * @return $this
+     */
+    public function setAppEngine($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\Service\AppEngine::class);
+        $this->writeOneof(7, $var);
+
+        return $this;
+    }
+
+    /**
+     * Type used for Cloud Endpoints services.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service.CloudEndpoints cloud_endpoints = 8;</code>
+     * @return \Google\Cloud\Monitoring\V3\Service\CloudEndpoints|null
+     */
+    public function getCloudEndpoints()
+    {
+        return $this->readOneof(8);
+    }
+
+    public function hasCloudEndpoints()
+    {
+        return $this->hasOneof(8);
+    }
+
+    /**
+     * Type used for Cloud Endpoints services.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service.CloudEndpoints cloud_endpoints = 8;</code>
+     * @param \Google\Cloud\Monitoring\V3\Service\CloudEndpoints $var
+     * @return $this
+     */
+    public function setCloudEndpoints($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\Service\CloudEndpoints::class);
+        $this->writeOneof(8, $var);
+
+        return $this;
+    }
+
+    /**
+     * Type used for Istio services that live in a Kubernetes cluster.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service.ClusterIstio cluster_istio = 9;</code>
+     * @return \Google\Cloud\Monitoring\V3\Service\ClusterIstio|null
+     */
+    public function getClusterIstio()
+    {
+        return $this->readOneof(9);
+    }
+
+    public function hasClusterIstio()
+    {
+        return $this->hasOneof(9);
+    }
+
+    /**
+     * Type used for Istio services that live in a Kubernetes cluster.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service.ClusterIstio cluster_istio = 9;</code>
+     * @param \Google\Cloud\Monitoring\V3\Service\ClusterIstio $var
+     * @return $this
+     */
+    public function setClusterIstio($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\Service\ClusterIstio::class);
+        $this->writeOneof(9, $var);
+
+        return $this;
+    }
+
+    /**
+     * Type used for Istio services scoped to an Istio mesh.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service.MeshIstio mesh_istio = 10;</code>
+     * @return \Google\Cloud\Monitoring\V3\Service\MeshIstio|null
+     */
+    public function getMeshIstio()
+    {
+        return $this->readOneof(10);
+    }
+
+    public function hasMeshIstio()
+    {
+        return $this->hasOneof(10);
+    }
+
+    /**
+     * Type used for Istio services scoped to an Istio mesh.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service.MeshIstio mesh_istio = 10;</code>
+     * @param \Google\Cloud\Monitoring\V3\Service\MeshIstio $var
+     * @return $this
+     */
+    public function setMeshIstio($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\Service\MeshIstio::class);
+        $this->writeOneof(10, $var);
+
+        return $this;
+    }
+
+    /**
+     * Type used for canonical services scoped to an Istio mesh.
+     * Metrics for Istio are
+     * [documented here](https://istio.io/latest/docs/reference/config/metrics/)
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service.IstioCanonicalService istio_canonical_service = 11;</code>
+     * @return \Google\Cloud\Monitoring\V3\Service\IstioCanonicalService|null
+     */
+    public function getIstioCanonicalService()
+    {
+        return $this->readOneof(11);
+    }
+
+    public function hasIstioCanonicalService()
+    {
+        return $this->hasOneof(11);
+    }
+
+    /**
+     * Type used for canonical services scoped to an Istio mesh.
+     * Metrics for Istio are
+     * [documented here](https://istio.io/latest/docs/reference/config/metrics/)
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service.IstioCanonicalService istio_canonical_service = 11;</code>
+     * @param \Google\Cloud\Monitoring\V3\Service\IstioCanonicalService $var
+     * @return $this
+     */
+    public function setIstioCanonicalService($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\Service\IstioCanonicalService::class);
+        $this->writeOneof(11, $var);
+
+        return $this;
+    }
+
+    /**
+     * Type used for Cloud Run services.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service.CloudRun cloud_run = 12;</code>
+     * @return \Google\Cloud\Monitoring\V3\Service\CloudRun|null
+     */
+    public function getCloudRun()
+    {
+        return $this->readOneof(12);
+    }
+
+    public function hasCloudRun()
+    {
+        return $this->hasOneof(12);
+    }
+
+    /**
+     * Type used for Cloud Run services.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service.CloudRun cloud_run = 12;</code>
+     * @param \Google\Cloud\Monitoring\V3\Service\CloudRun $var
+     * @return $this
+     */
+    public function setCloudRun($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\Service\CloudRun::class);
+        $this->writeOneof(12, $var);
+
+        return $this;
+    }
+
+    /**
+     * Type used for GKE Namespaces.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service.GkeNamespace gke_namespace = 15;</code>
+     * @return \Google\Cloud\Monitoring\V3\Service\GkeNamespace|null
+     */
+    public function getGkeNamespace()
+    {
+        return $this->readOneof(15);
+    }
+
+    public function hasGkeNamespace()
+    {
+        return $this->hasOneof(15);
+    }
+
+    /**
+     * Type used for GKE Namespaces.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service.GkeNamespace gke_namespace = 15;</code>
+     * @param \Google\Cloud\Monitoring\V3\Service\GkeNamespace $var
+     * @return $this
+     */
+    public function setGkeNamespace($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\Service\GkeNamespace::class);
+        $this->writeOneof(15, $var);
+
+        return $this;
+    }
+
+    /**
+     * Type used for GKE Workloads.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service.GkeWorkload gke_workload = 16;</code>
+     * @return \Google\Cloud\Monitoring\V3\Service\GkeWorkload|null
+     */
+    public function getGkeWorkload()
+    {
+        return $this->readOneof(16);
+    }
+
+    public function hasGkeWorkload()
+    {
+        return $this->hasOneof(16);
+    }
+
+    /**
+     * Type used for GKE Workloads.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service.GkeWorkload gke_workload = 16;</code>
+     * @param \Google\Cloud\Monitoring\V3\Service\GkeWorkload $var
+     * @return $this
+     */
+    public function setGkeWorkload($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\Service\GkeWorkload::class);
+        $this->writeOneof(16, $var);
+
+        return $this;
+    }
+
+    /**
+     * Type used for GKE Services (the Kubernetes concept of a service).
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service.GkeService gke_service = 17;</code>
+     * @return \Google\Cloud\Monitoring\V3\Service\GkeService|null
+     */
+    public function getGkeService()
+    {
+        return $this->readOneof(17);
+    }
+
+    public function hasGkeService()
+    {
+        return $this->hasOneof(17);
+    }
+
+    /**
+     * Type used for GKE Services (the Kubernetes concept of a service).
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service.GkeService gke_service = 17;</code>
+     * @param \Google\Cloud\Monitoring\V3\Service\GkeService $var
+     * @return $this
+     */
+    public function setGkeService($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\Service\GkeService::class);
+        $this->writeOneof(17, $var);
+
+        return $this;
+    }
+
+    /**
+     * Message that contains the service type and service labels of this service
+     * if it is a basic service.
+     * Documentation and examples
+     * [here](https://cloud.google.com/stackdriver/docs/solutions/slo-monitoring/api/api-structures#basic-svc-w-basic-sli).
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service.BasicService basic_service = 19;</code>
+     * @return \Google\Cloud\Monitoring\V3\Service\BasicService|null
+     */
+    public function getBasicService()
+    {
+        return $this->basic_service;
+    }
+
+    public function hasBasicService()
+    {
+        return isset($this->basic_service);
+    }
+
+    public function clearBasicService()
+    {
+        unset($this->basic_service);
+    }
+
+    /**
+     * Message that contains the service type and service labels of this service
+     * if it is a basic service.
+     * Documentation and examples
+     * [here](https://cloud.google.com/stackdriver/docs/solutions/slo-monitoring/api/api-structures#basic-svc-w-basic-sli).
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service.BasicService basic_service = 19;</code>
+     * @param \Google\Cloud\Monitoring\V3\Service\BasicService $var
+     * @return $this
+     */
+    public function setBasicService($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\Service\BasicService::class);
+        $this->basic_service = $var;
+
+        return $this;
+    }
+
+    /**
+     * Configuration for how to query telemetry on a Service.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service.Telemetry telemetry = 13;</code>
+     * @return \Google\Cloud\Monitoring\V3\Service\Telemetry|null
+     */
+    public function getTelemetry()
+    {
+        return $this->telemetry;
+    }
+
+    public function hasTelemetry()
+    {
+        return isset($this->telemetry);
+    }
+
+    public function clearTelemetry()
+    {
+        unset($this->telemetry);
+    }
+
+    /**
+     * Configuration for how to query telemetry on a Service.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service.Telemetry telemetry = 13;</code>
+     * @param \Google\Cloud\Monitoring\V3\Service\Telemetry $var
+     * @return $this
+     */
+    public function setTelemetry($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\Service\Telemetry::class);
+        $this->telemetry = $var;
+
+        return $this;
+    }
+
+    /**
+     * Labels which have been used to annotate the service. Label keys must start
+     * with a letter. Label keys and values may contain lowercase letters,
+     * numbers, underscores, and dashes. Label keys and values have a maximum
+     * length of 63 characters, and must be less than 128 bytes in size. Up to 64
+     * label entries may be stored. For labels which do not have a semantic value,
+     * the empty string may be supplied for the label value.
+     *
+     * Generated from protobuf field <code>map<string, string> user_labels = 14;</code>
+     * @return \Google\Protobuf\Internal\MapField
+     */
+    public function getUserLabels()
+    {
+        return $this->user_labels;
+    }
+
+    /**
+     * Labels which have been used to annotate the service. Label keys must start
+     * with a letter. Label keys and values may contain lowercase letters,
+     * numbers, underscores, and dashes. Label keys and values have a maximum
+     * length of 63 characters, and must be less than 128 bytes in size. Up to 64
+     * label entries may be stored. For labels which do not have a semantic value,
+     * the empty string may be supplied for the label value.
+     *
+     * Generated from protobuf field <code>map<string, string> user_labels = 14;</code>
+     * @param array|\Google\Protobuf\Internal\MapField $var
+     * @return $this
+     */
+    public function setUserLabels($var)
+    {
+        $arr = GPBUtil::checkMapField($var, \Google\Protobuf\Internal\GPBType::STRING, \Google\Protobuf\Internal\GPBType::STRING);
+        $this->user_labels = $arr;
+
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getIdentifier()
+    {
+        return $this->whichOneof("identifier");
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/AppEngine.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/AppEngine.php
new file mode 100644
index 000000000000..7dd90e27a87e
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/AppEngine.php
@@ -0,0 +1,78 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service.proto
+
+namespace Google\Cloud\Monitoring\V3\Service;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * App Engine service. Learn more at https://cloud.google.com/appengine.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.Service.AppEngine</code>
+ */
+class AppEngine extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The ID of the App Engine module underlying this service. Corresponds to
+     * the `module_id` resource label in the [`gae_app` monitored
+     * resource](https://cloud.google.com/monitoring/api/resources#tag_gae_app).
+     *
+     * Generated from protobuf field <code>string module_id = 1;</code>
+     */
+    protected $module_id = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $module_id
+     *           The ID of the App Engine module underlying this service. Corresponds to
+     *           the `module_id` resource label in the [`gae_app` monitored
+     *           resource](https://cloud.google.com/monitoring/api/resources#tag_gae_app).
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Service::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The ID of the App Engine module underlying this service. Corresponds to
+     * the `module_id` resource label in the [`gae_app` monitored
+     * resource](https://cloud.google.com/monitoring/api/resources#tag_gae_app).
+     *
+     * Generated from protobuf field <code>string module_id = 1;</code>
+     * @return string
+     */
+    public function getModuleId()
+    {
+        return $this->module_id;
+    }
+
+    /**
+     * The ID of the App Engine module underlying this service. Corresponds to
+     * the `module_id` resource label in the [`gae_app` monitored
+     * resource](https://cloud.google.com/monitoring/api/resources#tag_gae_app).
+     *
+     * Generated from protobuf field <code>string module_id = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setModuleId($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->module_id = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(AppEngine::class, \Google\Cloud\Monitoring\V3\Service_AppEngine::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/BasicService.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/BasicService.php
new file mode 100644
index 000000000000..5efe00c1cda5
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/BasicService.php
@@ -0,0 +1,130 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service.proto
+
+namespace Google\Cloud\Monitoring\V3\Service;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A well-known service type, defined by its service type and service labels.
+ * Documentation and examples
+ * [here](https://cloud.google.com/stackdriver/docs/solutions/slo-monitoring/api/api-structures#basic-svc-w-basic-sli).
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.Service.BasicService</code>
+ */
+class BasicService extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The type of service that this basic service defines, e.g.
+     * APP_ENGINE service type.
+     * Documentation and valid values
+     * [here](https://cloud.google.com/stackdriver/docs/solutions/slo-monitoring/api/api-structures#basic-svc-w-basic-sli).
+     *
+     * Generated from protobuf field <code>string service_type = 1;</code>
+     */
+    protected $service_type = '';
+    /**
+     * Labels that specify the resource that emits the monitoring data which
+     * is used for SLO reporting of this `Service`.
+     * Documentation and valid values for given service types
+     * [here](https://cloud.google.com/stackdriver/docs/solutions/slo-monitoring/api/api-structures#basic-svc-w-basic-sli).
+     *
+     * Generated from protobuf field <code>map<string, string> service_labels = 2;</code>
+     */
+    private $service_labels;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $service_type
+     *           The type of service that this basic service defines, e.g.
+     *           APP_ENGINE service type.
+     *           Documentation and valid values
+     *           [here](https://cloud.google.com/stackdriver/docs/solutions/slo-monitoring/api/api-structures#basic-svc-w-basic-sli).
+     *     @type array|\Google\Protobuf\Internal\MapField $service_labels
+     *           Labels that specify the resource that emits the monitoring data which
+     *           is used for SLO reporting of this `Service`.
+     *           Documentation and valid values for given service types
+     *           [here](https://cloud.google.com/stackdriver/docs/solutions/slo-monitoring/api/api-structures#basic-svc-w-basic-sli).
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Service::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The type of service that this basic service defines, e.g.
+     * APP_ENGINE service type.
+     * Documentation and valid values
+     * [here](https://cloud.google.com/stackdriver/docs/solutions/slo-monitoring/api/api-structures#basic-svc-w-basic-sli).
+     *
+     * Generated from protobuf field <code>string service_type = 1;</code>
+     * @return string
+     */
+    public function getServiceType()
+    {
+        return $this->service_type;
+    }
+
+    /**
+     * The type of service that this basic service defines, e.g.
+     * APP_ENGINE service type.
+     * Documentation and valid values
+     * [here](https://cloud.google.com/stackdriver/docs/solutions/slo-monitoring/api/api-structures#basic-svc-w-basic-sli).
+     *
+     * Generated from protobuf field <code>string service_type = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setServiceType($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->service_type = $var;
+
+        return $this;
+    }
+
+    /**
+     * Labels that specify the resource that emits the monitoring data which
+     * is used for SLO reporting of this `Service`.
+     * Documentation and valid values for given service types
+     * [here](https://cloud.google.com/stackdriver/docs/solutions/slo-monitoring/api/api-structures#basic-svc-w-basic-sli).
+     *
+     * Generated from protobuf field <code>map<string, string> service_labels = 2;</code>
+     * @return \Google\Protobuf\Internal\MapField
+     */
+    public function getServiceLabels()
+    {
+        return $this->service_labels;
+    }
+
+    /**
+     * Labels that specify the resource that emits the monitoring data which
+     * is used for SLO reporting of this `Service`.
+     * Documentation and valid values for given service types
+     * [here](https://cloud.google.com/stackdriver/docs/solutions/slo-monitoring/api/api-structures#basic-svc-w-basic-sli).
+     *
+     * Generated from protobuf field <code>map<string, string> service_labels = 2;</code>
+     * @param array|\Google\Protobuf\Internal\MapField $var
+     * @return $this
+     */
+    public function setServiceLabels($var)
+    {
+        $arr = GPBUtil::checkMapField($var, \Google\Protobuf\Internal\GPBType::STRING, \Google\Protobuf\Internal\GPBType::STRING);
+        $this->service_labels = $arr;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(BasicService::class, \Google\Cloud\Monitoring\V3\Service_BasicService::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/CloudEndpoints.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/CloudEndpoints.php
new file mode 100644
index 000000000000..6560ccb0626d
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/CloudEndpoints.php
@@ -0,0 +1,78 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service.proto
+
+namespace Google\Cloud\Monitoring\V3\Service;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Cloud Endpoints service. Learn more at https://cloud.google.com/endpoints.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.Service.CloudEndpoints</code>
+ */
+class CloudEndpoints extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The name of the Cloud Endpoints service underlying this service.
+     * Corresponds to the `service` resource label in the [`api` monitored
+     * resource](https://cloud.google.com/monitoring/api/resources#tag_api).
+     *
+     * Generated from protobuf field <code>string service = 1;</code>
+     */
+    protected $service = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $service
+     *           The name of the Cloud Endpoints service underlying this service.
+     *           Corresponds to the `service` resource label in the [`api` monitored
+     *           resource](https://cloud.google.com/monitoring/api/resources#tag_api).
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Service::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The name of the Cloud Endpoints service underlying this service.
+     * Corresponds to the `service` resource label in the [`api` monitored
+     * resource](https://cloud.google.com/monitoring/api/resources#tag_api).
+     *
+     * Generated from protobuf field <code>string service = 1;</code>
+     * @return string
+     */
+    public function getService()
+    {
+        return $this->service;
+    }
+
+    /**
+     * The name of the Cloud Endpoints service underlying this service.
+     * Corresponds to the `service` resource label in the [`api` monitored
+     * resource](https://cloud.google.com/monitoring/api/resources#tag_api).
+     *
+     * Generated from protobuf field <code>string service = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setService($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->service = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(CloudEndpoints::class, \Google\Cloud\Monitoring\V3\Service_CloudEndpoints::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/CloudRun.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/CloudRun.php
new file mode 100644
index 000000000000..05dd1da04bf8
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/CloudRun.php
@@ -0,0 +1,120 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service.proto
+
+namespace Google\Cloud\Monitoring\V3\Service;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Cloud Run service. Learn more at https://cloud.google.com/run.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.Service.CloudRun</code>
+ */
+class CloudRun extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The name of the Cloud Run service. Corresponds to the `service_name`
+     * resource label in the [`cloud_run_revision` monitored
+     * resource](https://cloud.google.com/monitoring/api/resources#tag_cloud_run_revision).
+     *
+     * Generated from protobuf field <code>string service_name = 1;</code>
+     */
+    protected $service_name = '';
+    /**
+     * The location the service is run. Corresponds to the `location`
+     * resource label in the [`cloud_run_revision` monitored
+     * resource](https://cloud.google.com/monitoring/api/resources#tag_cloud_run_revision).
+     *
+     * Generated from protobuf field <code>string location = 2;</code>
+     */
+    protected $location = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $service_name
+     *           The name of the Cloud Run service. Corresponds to the `service_name`
+     *           resource label in the [`cloud_run_revision` monitored
+     *           resource](https://cloud.google.com/monitoring/api/resources#tag_cloud_run_revision).
+     *     @type string $location
+     *           The location the service is run. Corresponds to the `location`
+     *           resource label in the [`cloud_run_revision` monitored
+     *           resource](https://cloud.google.com/monitoring/api/resources#tag_cloud_run_revision).
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Service::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The name of the Cloud Run service. Corresponds to the `service_name`
+     * resource label in the [`cloud_run_revision` monitored
+     * resource](https://cloud.google.com/monitoring/api/resources#tag_cloud_run_revision).
+     *
+     * Generated from protobuf field <code>string service_name = 1;</code>
+     * @return string
+     */
+    public function getServiceName()
+    {
+        return $this->service_name;
+    }
+
+    /**
+     * The name of the Cloud Run service. Corresponds to the `service_name`
+     * resource label in the [`cloud_run_revision` monitored
+     * resource](https://cloud.google.com/monitoring/api/resources#tag_cloud_run_revision).
+     *
+     * Generated from protobuf field <code>string service_name = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setServiceName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->service_name = $var;
+
+        return $this;
+    }
+
+    /**
+     * The location the service is run. Corresponds to the `location`
+     * resource label in the [`cloud_run_revision` monitored
+     * resource](https://cloud.google.com/monitoring/api/resources#tag_cloud_run_revision).
+     *
+     * Generated from protobuf field <code>string location = 2;</code>
+     * @return string
+     */
+    public function getLocation()
+    {
+        return $this->location;
+    }
+
+    /**
+     * The location the service is run. Corresponds to the `location`
+     * resource label in the [`cloud_run_revision` monitored
+     * resource](https://cloud.google.com/monitoring/api/resources#tag_cloud_run_revision).
+     *
+     * Generated from protobuf field <code>string location = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setLocation($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->location = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(CloudRun::class, \Google\Cloud\Monitoring\V3\Service_CloudRun::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/ClusterIstio.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/ClusterIstio.php
new file mode 100644
index 000000000000..bcbab5c1818c
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/ClusterIstio.php
@@ -0,0 +1,198 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service.proto
+
+namespace Google\Cloud\Monitoring\V3\Service;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Istio service scoped to a single Kubernetes cluster. Learn more at
+ * https://istio.io. Clusters running OSS Istio will have their services
+ * ingested as this type.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.Service.ClusterIstio</code>
+ */
+class ClusterIstio extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The location of the Kubernetes cluster in which this Istio service is
+     * defined. Corresponds to the `location` resource label in `k8s_cluster`
+     * resources.
+     *
+     * Generated from protobuf field <code>string location = 1;</code>
+     */
+    protected $location = '';
+    /**
+     * The name of the Kubernetes cluster in which this Istio service is
+     * defined. Corresponds to the `cluster_name` resource label in
+     * `k8s_cluster` resources.
+     *
+     * Generated from protobuf field <code>string cluster_name = 2;</code>
+     */
+    protected $cluster_name = '';
+    /**
+     * The namespace of the Istio service underlying this service. Corresponds
+     * to the `destination_service_namespace` metric label in Istio metrics.
+     *
+     * Generated from protobuf field <code>string service_namespace = 3;</code>
+     */
+    protected $service_namespace = '';
+    /**
+     * The name of the Istio service underlying this service. Corresponds to the
+     * `destination_service_name` metric label in Istio metrics.
+     *
+     * Generated from protobuf field <code>string service_name = 4;</code>
+     */
+    protected $service_name = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $location
+     *           The location of the Kubernetes cluster in which this Istio service is
+     *           defined. Corresponds to the `location` resource label in `k8s_cluster`
+     *           resources.
+     *     @type string $cluster_name
+     *           The name of the Kubernetes cluster in which this Istio service is
+     *           defined. Corresponds to the `cluster_name` resource label in
+     *           `k8s_cluster` resources.
+     *     @type string $service_namespace
+     *           The namespace of the Istio service underlying this service. Corresponds
+     *           to the `destination_service_namespace` metric label in Istio metrics.
+     *     @type string $service_name
+     *           The name of the Istio service underlying this service. Corresponds to the
+     *           `destination_service_name` metric label in Istio metrics.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Service::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The location of the Kubernetes cluster in which this Istio service is
+     * defined. Corresponds to the `location` resource label in `k8s_cluster`
+     * resources.
+     *
+     * Generated from protobuf field <code>string location = 1;</code>
+     * @return string
+     */
+    public function getLocation()
+    {
+        return $this->location;
+    }
+
+    /**
+     * The location of the Kubernetes cluster in which this Istio service is
+     * defined. Corresponds to the `location` resource label in `k8s_cluster`
+     * resources.
+     *
+     * Generated from protobuf field <code>string location = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setLocation($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->location = $var;
+
+        return $this;
+    }
+
+    /**
+     * The name of the Kubernetes cluster in which this Istio service is
+     * defined. Corresponds to the `cluster_name` resource label in
+     * `k8s_cluster` resources.
+     *
+     * Generated from protobuf field <code>string cluster_name = 2;</code>
+     * @return string
+     */
+    public function getClusterName()
+    {
+        return $this->cluster_name;
+    }
+
+    /**
+     * The name of the Kubernetes cluster in which this Istio service is
+     * defined. Corresponds to the `cluster_name` resource label in
+     * `k8s_cluster` resources.
+     *
+     * Generated from protobuf field <code>string cluster_name = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setClusterName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->cluster_name = $var;
+
+        return $this;
+    }
+
+    /**
+     * The namespace of the Istio service underlying this service. Corresponds
+     * to the `destination_service_namespace` metric label in Istio metrics.
+     *
+     * Generated from protobuf field <code>string service_namespace = 3;</code>
+     * @return string
+     */
+    public function getServiceNamespace()
+    {
+        return $this->service_namespace;
+    }
+
+    /**
+     * The namespace of the Istio service underlying this service. Corresponds
+     * to the `destination_service_namespace` metric label in Istio metrics.
+     *
+     * Generated from protobuf field <code>string service_namespace = 3;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setServiceNamespace($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->service_namespace = $var;
+
+        return $this;
+    }
+
+    /**
+     * The name of the Istio service underlying this service. Corresponds to the
+     * `destination_service_name` metric label in Istio metrics.
+     *
+     * Generated from protobuf field <code>string service_name = 4;</code>
+     * @return string
+     */
+    public function getServiceName()
+    {
+        return $this->service_name;
+    }
+
+    /**
+     * The name of the Istio service underlying this service. Corresponds to the
+     * `destination_service_name` metric label in Istio metrics.
+     *
+     * Generated from protobuf field <code>string service_name = 4;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setServiceName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->service_name = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(ClusterIstio::class, \Google\Cloud\Monitoring\V3\Service_ClusterIstio::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/Custom.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/Custom.php
new file mode 100644
index 000000000000..03fb8595f374
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/Custom.php
@@ -0,0 +1,38 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service.proto
+
+namespace Google\Cloud\Monitoring\V3\Service;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Use a custom service to designate a service that you want to monitor
+ * when none of the other service types (like App Engine, Cloud Run, or
+ * a GKE type) matches your intended service.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.Service.Custom</code>
+ */
+class Custom extends \Google\Protobuf\Internal\Message
+{
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Service::initOnce();
+        parent::__construct($data);
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(Custom::class, \Google\Cloud\Monitoring\V3\Service_Custom::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/GkeNamespace.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/GkeNamespace.php
new file mode 100644
index 000000000000..65c6e82d342d
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/GkeNamespace.php
@@ -0,0 +1,182 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service.proto
+
+namespace Google\Cloud\Monitoring\V3\Service;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * GKE Namespace. The field names correspond to the resource metadata labels
+ * on monitored resources that fall under a namespace (for example,
+ * `k8s_container` or `k8s_pod`).
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.Service.GkeNamespace</code>
+ */
+class GkeNamespace extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Output only. The project this resource lives in. For legacy services
+     * migrated from the `Custom` type, this may be a distinct project from the
+     * one parenting the service itself.
+     *
+     * Generated from protobuf field <code>string project_id = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    protected $project_id = '';
+    /**
+     * The location of the parent cluster. This may be a zone or region.
+     *
+     * Generated from protobuf field <code>string location = 2;</code>
+     */
+    protected $location = '';
+    /**
+     * The name of the parent cluster.
+     *
+     * Generated from protobuf field <code>string cluster_name = 3;</code>
+     */
+    protected $cluster_name = '';
+    /**
+     * The name of this namespace.
+     *
+     * Generated from protobuf field <code>string namespace_name = 4;</code>
+     */
+    protected $namespace_name = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $project_id
+     *           Output only. The project this resource lives in. For legacy services
+     *           migrated from the `Custom` type, this may be a distinct project from the
+     *           one parenting the service itself.
+     *     @type string $location
+     *           The location of the parent cluster. This may be a zone or region.
+     *     @type string $cluster_name
+     *           The name of the parent cluster.
+     *     @type string $namespace_name
+     *           The name of this namespace.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Service::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Output only. The project this resource lives in. For legacy services
+     * migrated from the `Custom` type, this may be a distinct project from the
+     * one parenting the service itself.
+     *
+     * Generated from protobuf field <code>string project_id = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return string
+     */
+    public function getProjectId()
+    {
+        return $this->project_id;
+    }
+
+    /**
+     * Output only. The project this resource lives in. For legacy services
+     * migrated from the `Custom` type, this may be a distinct project from the
+     * one parenting the service itself.
+     *
+     * Generated from protobuf field <code>string project_id = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setProjectId($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->project_id = $var;
+
+        return $this;
+    }
+
+    /**
+     * The location of the parent cluster. This may be a zone or region.
+     *
+     * Generated from protobuf field <code>string location = 2;</code>
+     * @return string
+     */
+    public function getLocation()
+    {
+        return $this->location;
+    }
+
+    /**
+     * The location of the parent cluster. This may be a zone or region.
+     *
+     * Generated from protobuf field <code>string location = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setLocation($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->location = $var;
+
+        return $this;
+    }
+
+    /**
+     * The name of the parent cluster.
+     *
+     * Generated from protobuf field <code>string cluster_name = 3;</code>
+     * @return string
+     */
+    public function getClusterName()
+    {
+        return $this->cluster_name;
+    }
+
+    /**
+     * The name of the parent cluster.
+     *
+     * Generated from protobuf field <code>string cluster_name = 3;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setClusterName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->cluster_name = $var;
+
+        return $this;
+    }
+
+    /**
+     * The name of this namespace.
+     *
+     * Generated from protobuf field <code>string namespace_name = 4;</code>
+     * @return string
+     */
+    public function getNamespaceName()
+    {
+        return $this->namespace_name;
+    }
+
+    /**
+     * The name of this namespace.
+     *
+     * Generated from protobuf field <code>string namespace_name = 4;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setNamespaceName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->namespace_name = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(GkeNamespace::class, \Google\Cloud\Monitoring\V3\Service_GkeNamespace::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/GkeService.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/GkeService.php
new file mode 100644
index 000000000000..4b9bbf7606d7
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/GkeService.php
@@ -0,0 +1,219 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service.proto
+
+namespace Google\Cloud\Monitoring\V3\Service;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * GKE Service. The "service" here represents a
+ * [Kubernetes service
+ * object](https://kubernetes.io/docs/concepts/services-networking/service).
+ * The field names correspond to the resource labels on [`k8s_service`
+ * monitored
+ * resources](https://cloud.google.com/monitoring/api/resources#tag_k8s_service).
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.Service.GkeService</code>
+ */
+class GkeService extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Output only. The project this resource lives in. For legacy services
+     * migrated from the `Custom` type, this may be a distinct project from the
+     * one parenting the service itself.
+     *
+     * Generated from protobuf field <code>string project_id = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    protected $project_id = '';
+    /**
+     * The location of the parent cluster. This may be a zone or region.
+     *
+     * Generated from protobuf field <code>string location = 2;</code>
+     */
+    protected $location = '';
+    /**
+     * The name of the parent cluster.
+     *
+     * Generated from protobuf field <code>string cluster_name = 3;</code>
+     */
+    protected $cluster_name = '';
+    /**
+     * The name of the parent namespace.
+     *
+     * Generated from protobuf field <code>string namespace_name = 4;</code>
+     */
+    protected $namespace_name = '';
+    /**
+     * The name of this service.
+     *
+     * Generated from protobuf field <code>string service_name = 5;</code>
+     */
+    protected $service_name = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $project_id
+     *           Output only. The project this resource lives in. For legacy services
+     *           migrated from the `Custom` type, this may be a distinct project from the
+     *           one parenting the service itself.
+     *     @type string $location
+     *           The location of the parent cluster. This may be a zone or region.
+     *     @type string $cluster_name
+     *           The name of the parent cluster.
+     *     @type string $namespace_name
+     *           The name of the parent namespace.
+     *     @type string $service_name
+     *           The name of this service.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Service::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Output only. The project this resource lives in. For legacy services
+     * migrated from the `Custom` type, this may be a distinct project from the
+     * one parenting the service itself.
+     *
+     * Generated from protobuf field <code>string project_id = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return string
+     */
+    public function getProjectId()
+    {
+        return $this->project_id;
+    }
+
+    /**
+     * Output only. The project this resource lives in. For legacy services
+     * migrated from the `Custom` type, this may be a distinct project from the
+     * one parenting the service itself.
+     *
+     * Generated from protobuf field <code>string project_id = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setProjectId($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->project_id = $var;
+
+        return $this;
+    }
+
+    /**
+     * The location of the parent cluster. This may be a zone or region.
+     *
+     * Generated from protobuf field <code>string location = 2;</code>
+     * @return string
+     */
+    public function getLocation()
+    {
+        return $this->location;
+    }
+
+    /**
+     * The location of the parent cluster. This may be a zone or region.
+     *
+     * Generated from protobuf field <code>string location = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setLocation($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->location = $var;
+
+        return $this;
+    }
+
+    /**
+     * The name of the parent cluster.
+     *
+     * Generated from protobuf field <code>string cluster_name = 3;</code>
+     * @return string
+     */
+    public function getClusterName()
+    {
+        return $this->cluster_name;
+    }
+
+    /**
+     * The name of the parent cluster.
+     *
+     * Generated from protobuf field <code>string cluster_name = 3;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setClusterName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->cluster_name = $var;
+
+        return $this;
+    }
+
+    /**
+     * The name of the parent namespace.
+     *
+     * Generated from protobuf field <code>string namespace_name = 4;</code>
+     * @return string
+     */
+    public function getNamespaceName()
+    {
+        return $this->namespace_name;
+    }
+
+    /**
+     * The name of the parent namespace.
+     *
+     * Generated from protobuf field <code>string namespace_name = 4;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setNamespaceName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->namespace_name = $var;
+
+        return $this;
+    }
+
+    /**
+     * The name of this service.
+     *
+     * Generated from protobuf field <code>string service_name = 5;</code>
+     * @return string
+     */
+    public function getServiceName()
+    {
+        return $this->service_name;
+    }
+
+    /**
+     * The name of this service.
+     *
+     * Generated from protobuf field <code>string service_name = 5;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setServiceName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->service_name = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(GkeService::class, \Google\Cloud\Monitoring\V3\Service_GkeService::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/GkeWorkload.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/GkeWorkload.php
new file mode 100644
index 000000000000..7ec62cebfe7a
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/GkeWorkload.php
@@ -0,0 +1,250 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service.proto
+
+namespace Google\Cloud\Monitoring\V3\Service;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A GKE Workload (Deployment, StatefulSet, etc). The field names correspond
+ * to the metadata labels on monitored resources that fall under a workload
+ * (for example, `k8s_container` or `k8s_pod`).
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.Service.GkeWorkload</code>
+ */
+class GkeWorkload extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Output only. The project this resource lives in. For legacy services
+     * migrated from the `Custom` type, this may be a distinct project from the
+     * one parenting the service itself.
+     *
+     * Generated from protobuf field <code>string project_id = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    protected $project_id = '';
+    /**
+     * The location of the parent cluster. This may be a zone or region.
+     *
+     * Generated from protobuf field <code>string location = 2;</code>
+     */
+    protected $location = '';
+    /**
+     * The name of the parent cluster.
+     *
+     * Generated from protobuf field <code>string cluster_name = 3;</code>
+     */
+    protected $cluster_name = '';
+    /**
+     * The name of the parent namespace.
+     *
+     * Generated from protobuf field <code>string namespace_name = 4;</code>
+     */
+    protected $namespace_name = '';
+    /**
+     * The type of this workload (for example, "Deployment" or "DaemonSet")
+     *
+     * Generated from protobuf field <code>string top_level_controller_type = 5;</code>
+     */
+    protected $top_level_controller_type = '';
+    /**
+     * The name of this workload.
+     *
+     * Generated from protobuf field <code>string top_level_controller_name = 6;</code>
+     */
+    protected $top_level_controller_name = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $project_id
+     *           Output only. The project this resource lives in. For legacy services
+     *           migrated from the `Custom` type, this may be a distinct project from the
+     *           one parenting the service itself.
+     *     @type string $location
+     *           The location of the parent cluster. This may be a zone or region.
+     *     @type string $cluster_name
+     *           The name of the parent cluster.
+     *     @type string $namespace_name
+     *           The name of the parent namespace.
+     *     @type string $top_level_controller_type
+     *           The type of this workload (for example, "Deployment" or "DaemonSet")
+     *     @type string $top_level_controller_name
+     *           The name of this workload.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Service::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Output only. The project this resource lives in. For legacy services
+     * migrated from the `Custom` type, this may be a distinct project from the
+     * one parenting the service itself.
+     *
+     * Generated from protobuf field <code>string project_id = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return string
+     */
+    public function getProjectId()
+    {
+        return $this->project_id;
+    }
+
+    /**
+     * Output only. The project this resource lives in. For legacy services
+     * migrated from the `Custom` type, this may be a distinct project from the
+     * one parenting the service itself.
+     *
+     * Generated from protobuf field <code>string project_id = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setProjectId($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->project_id = $var;
+
+        return $this;
+    }
+
+    /**
+     * The location of the parent cluster. This may be a zone or region.
+     *
+     * Generated from protobuf field <code>string location = 2;</code>
+     * @return string
+     */
+    public function getLocation()
+    {
+        return $this->location;
+    }
+
+    /**
+     * The location of the parent cluster. This may be a zone or region.
+     *
+     * Generated from protobuf field <code>string location = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setLocation($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->location = $var;
+
+        return $this;
+    }
+
+    /**
+     * The name of the parent cluster.
+     *
+     * Generated from protobuf field <code>string cluster_name = 3;</code>
+     * @return string
+     */
+    public function getClusterName()
+    {
+        return $this->cluster_name;
+    }
+
+    /**
+     * The name of the parent cluster.
+     *
+     * Generated from protobuf field <code>string cluster_name = 3;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setClusterName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->cluster_name = $var;
+
+        return $this;
+    }
+
+    /**
+     * The name of the parent namespace.
+     *
+     * Generated from protobuf field <code>string namespace_name = 4;</code>
+     * @return string
+     */
+    public function getNamespaceName()
+    {
+        return $this->namespace_name;
+    }
+
+    /**
+     * The name of the parent namespace.
+     *
+     * Generated from protobuf field <code>string namespace_name = 4;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setNamespaceName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->namespace_name = $var;
+
+        return $this;
+    }
+
+    /**
+     * The type of this workload (for example, "Deployment" or "DaemonSet")
+     *
+     * Generated from protobuf field <code>string top_level_controller_type = 5;</code>
+     * @return string
+     */
+    public function getTopLevelControllerType()
+    {
+        return $this->top_level_controller_type;
+    }
+
+    /**
+     * The type of this workload (for example, "Deployment" or "DaemonSet")
+     *
+     * Generated from protobuf field <code>string top_level_controller_type = 5;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setTopLevelControllerType($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->top_level_controller_type = $var;
+
+        return $this;
+    }
+
+    /**
+     * The name of this workload.
+     *
+     * Generated from protobuf field <code>string top_level_controller_name = 6;</code>
+     * @return string
+     */
+    public function getTopLevelControllerName()
+    {
+        return $this->top_level_controller_name;
+    }
+
+    /**
+     * The name of this workload.
+     *
+     * Generated from protobuf field <code>string top_level_controller_name = 6;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setTopLevelControllerName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->top_level_controller_name = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(GkeWorkload::class, \Google\Cloud\Monitoring\V3\Service_GkeWorkload::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/IstioCanonicalService.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/IstioCanonicalService.php
new file mode 100644
index 000000000000..0feb3f3aaa8c
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/IstioCanonicalService.php
@@ -0,0 +1,171 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service.proto
+
+namespace Google\Cloud\Monitoring\V3\Service;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Canonical service scoped to an Istio mesh. Anthos clusters running ASM >=
+ * 1.6.8 will have their services ingested as this type.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.Service.IstioCanonicalService</code>
+ */
+class IstioCanonicalService extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Identifier for the Istio mesh in which this canonical service is defined.
+     * Corresponds to the `mesh_uid` metric label in
+     * [Istio metrics](https://cloud.google.com/monitoring/api/metrics_istio).
+     *
+     * Generated from protobuf field <code>string mesh_uid = 1;</code>
+     */
+    protected $mesh_uid = '';
+    /**
+     * The namespace of the canonical service underlying this service.
+     * Corresponds to the `destination_canonical_service_namespace` metric
+     * label in [Istio
+     * metrics](https://cloud.google.com/monitoring/api/metrics_istio).
+     *
+     * Generated from protobuf field <code>string canonical_service_namespace = 3;</code>
+     */
+    protected $canonical_service_namespace = '';
+    /**
+     * The name of the canonical service underlying this service.
+     * Corresponds to the `destination_canonical_service_name` metric label in
+     * label in [Istio
+     * metrics](https://cloud.google.com/monitoring/api/metrics_istio).
+     *
+     * Generated from protobuf field <code>string canonical_service = 4;</code>
+     */
+    protected $canonical_service = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $mesh_uid
+     *           Identifier for the Istio mesh in which this canonical service is defined.
+     *           Corresponds to the `mesh_uid` metric label in
+     *           [Istio metrics](https://cloud.google.com/monitoring/api/metrics_istio).
+     *     @type string $canonical_service_namespace
+     *           The namespace of the canonical service underlying this service.
+     *           Corresponds to the `destination_canonical_service_namespace` metric
+     *           label in [Istio
+     *           metrics](https://cloud.google.com/monitoring/api/metrics_istio).
+     *     @type string $canonical_service
+     *           The name of the canonical service underlying this service.
+     *           Corresponds to the `destination_canonical_service_name` metric label in
+     *           label in [Istio
+     *           metrics](https://cloud.google.com/monitoring/api/metrics_istio).
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Service::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Identifier for the Istio mesh in which this canonical service is defined.
+     * Corresponds to the `mesh_uid` metric label in
+     * [Istio metrics](https://cloud.google.com/monitoring/api/metrics_istio).
+     *
+     * Generated from protobuf field <code>string mesh_uid = 1;</code>
+     * @return string
+     */
+    public function getMeshUid()
+    {
+        return $this->mesh_uid;
+    }
+
+    /**
+     * Identifier for the Istio mesh in which this canonical service is defined.
+     * Corresponds to the `mesh_uid` metric label in
+     * [Istio metrics](https://cloud.google.com/monitoring/api/metrics_istio).
+     *
+     * Generated from protobuf field <code>string mesh_uid = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setMeshUid($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->mesh_uid = $var;
+
+        return $this;
+    }
+
+    /**
+     * The namespace of the canonical service underlying this service.
+     * Corresponds to the `destination_canonical_service_namespace` metric
+     * label in [Istio
+     * metrics](https://cloud.google.com/monitoring/api/metrics_istio).
+     *
+     * Generated from protobuf field <code>string canonical_service_namespace = 3;</code>
+     * @return string
+     */
+    public function getCanonicalServiceNamespace()
+    {
+        return $this->canonical_service_namespace;
+    }
+
+    /**
+     * The namespace of the canonical service underlying this service.
+     * Corresponds to the `destination_canonical_service_namespace` metric
+     * label in [Istio
+     * metrics](https://cloud.google.com/monitoring/api/metrics_istio).
+     *
+     * Generated from protobuf field <code>string canonical_service_namespace = 3;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setCanonicalServiceNamespace($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->canonical_service_namespace = $var;
+
+        return $this;
+    }
+
+    /**
+     * The name of the canonical service underlying this service.
+     * Corresponds to the `destination_canonical_service_name` metric label in
+     * label in [Istio
+     * metrics](https://cloud.google.com/monitoring/api/metrics_istio).
+     *
+     * Generated from protobuf field <code>string canonical_service = 4;</code>
+     * @return string
+     */
+    public function getCanonicalService()
+    {
+        return $this->canonical_service;
+    }
+
+    /**
+     * The name of the canonical service underlying this service.
+     * Corresponds to the `destination_canonical_service_name` metric label in
+     * label in [Istio
+     * metrics](https://cloud.google.com/monitoring/api/metrics_istio).
+     *
+     * Generated from protobuf field <code>string canonical_service = 4;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setCanonicalService($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->canonical_service = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(IstioCanonicalService::class, \Google\Cloud\Monitoring\V3\Service_IstioCanonicalService::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/MeshIstio.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/MeshIstio.php
new file mode 100644
index 000000000000..e90ac6f8b63a
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/MeshIstio.php
@@ -0,0 +1,151 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service.proto
+
+namespace Google\Cloud\Monitoring\V3\Service;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Istio service scoped to an Istio mesh. Anthos clusters running ASM < 1.6.8
+ * will have their services ingested as this type.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.Service.MeshIstio</code>
+ */
+class MeshIstio extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Identifier for the mesh in which this Istio service is defined.
+     * Corresponds to the `mesh_uid` metric label in Istio metrics.
+     *
+     * Generated from protobuf field <code>string mesh_uid = 1;</code>
+     */
+    protected $mesh_uid = '';
+    /**
+     * The namespace of the Istio service underlying this service. Corresponds
+     * to the `destination_service_namespace` metric label in Istio metrics.
+     *
+     * Generated from protobuf field <code>string service_namespace = 3;</code>
+     */
+    protected $service_namespace = '';
+    /**
+     * The name of the Istio service underlying this service. Corresponds to the
+     * `destination_service_name` metric label in Istio metrics.
+     *
+     * Generated from protobuf field <code>string service_name = 4;</code>
+     */
+    protected $service_name = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $mesh_uid
+     *           Identifier for the mesh in which this Istio service is defined.
+     *           Corresponds to the `mesh_uid` metric label in Istio metrics.
+     *     @type string $service_namespace
+     *           The namespace of the Istio service underlying this service. Corresponds
+     *           to the `destination_service_namespace` metric label in Istio metrics.
+     *     @type string $service_name
+     *           The name of the Istio service underlying this service. Corresponds to the
+     *           `destination_service_name` metric label in Istio metrics.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Service::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Identifier for the mesh in which this Istio service is defined.
+     * Corresponds to the `mesh_uid` metric label in Istio metrics.
+     *
+     * Generated from protobuf field <code>string mesh_uid = 1;</code>
+     * @return string
+     */
+    public function getMeshUid()
+    {
+        return $this->mesh_uid;
+    }
+
+    /**
+     * Identifier for the mesh in which this Istio service is defined.
+     * Corresponds to the `mesh_uid` metric label in Istio metrics.
+     *
+     * Generated from protobuf field <code>string mesh_uid = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setMeshUid($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->mesh_uid = $var;
+
+        return $this;
+    }
+
+    /**
+     * The namespace of the Istio service underlying this service. Corresponds
+     * to the `destination_service_namespace` metric label in Istio metrics.
+     *
+     * Generated from protobuf field <code>string service_namespace = 3;</code>
+     * @return string
+     */
+    public function getServiceNamespace()
+    {
+        return $this->service_namespace;
+    }
+
+    /**
+     * The namespace of the Istio service underlying this service. Corresponds
+     * to the `destination_service_namespace` metric label in Istio metrics.
+     *
+     * Generated from protobuf field <code>string service_namespace = 3;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setServiceNamespace($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->service_namespace = $var;
+
+        return $this;
+    }
+
+    /**
+     * The name of the Istio service underlying this service. Corresponds to the
+     * `destination_service_name` metric label in Istio metrics.
+     *
+     * Generated from protobuf field <code>string service_name = 4;</code>
+     * @return string
+     */
+    public function getServiceName()
+    {
+        return $this->service_name;
+    }
+
+    /**
+     * The name of the Istio service underlying this service. Corresponds to the
+     * `destination_service_name` metric label in Istio metrics.
+     *
+     * Generated from protobuf field <code>string service_name = 4;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setServiceName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->service_name = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(MeshIstio::class, \Google\Cloud\Monitoring\V3\Service_MeshIstio::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/Telemetry.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/Telemetry.php
new file mode 100644
index 000000000000..6bb4bd890866
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Service/Telemetry.php
@@ -0,0 +1,74 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service.proto
+
+namespace Google\Cloud\Monitoring\V3\Service;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Configuration for how to query telemetry on a Service.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.Service.Telemetry</code>
+ */
+class Telemetry extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The full name of the resource that defines this service. Formatted as
+     * described in https://cloud.google.com/apis/design/resource_names.
+     *
+     * Generated from protobuf field <code>string resource_name = 1;</code>
+     */
+    protected $resource_name = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $resource_name
+     *           The full name of the resource that defines this service. Formatted as
+     *           described in https://cloud.google.com/apis/design/resource_names.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Service::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The full name of the resource that defines this service. Formatted as
+     * described in https://cloud.google.com/apis/design/resource_names.
+     *
+     * Generated from protobuf field <code>string resource_name = 1;</code>
+     * @return string
+     */
+    public function getResourceName()
+    {
+        return $this->resource_name;
+    }
+
+    /**
+     * The full name of the resource that defines this service. Formatted as
+     * described in https://cloud.google.com/apis/design/resource_names.
+     *
+     * Generated from protobuf field <code>string resource_name = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setResourceName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->resource_name = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(Telemetry::class, \Google\Cloud\Monitoring\V3\Service_Telemetry::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ServiceLevelIndicator.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ServiceLevelIndicator.php
new file mode 100644
index 000000000000..a1d08a4e348f
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ServiceLevelIndicator.php
@@ -0,0 +1,153 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A Service-Level Indicator (SLI) describes the "performance" of a service. For
+ * some services, the SLI is well-defined. In such cases, the SLI can be
+ * described easily by referencing the well-known SLI and providing the needed
+ * parameters. Alternatively, a "custom" SLI can be defined with a query to the
+ * underlying metric store. An SLI is defined to be `good_service /
+ * total_service` over any queried time interval. The value of performance
+ * always falls into the range `0 <= performance <= 1`. A custom SLI describes
+ * how to compute this ratio, whether this is by dividing values from a pair of
+ * time series, cutting a `Distribution` into good and bad counts, or counting
+ * time windows in which the service complies with a criterion. For separation
+ * of concerns, a single Service-Level Indicator measures performance for only
+ * one aspect of service quality, such as fraction of successful queries or
+ * fast-enough queries.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ServiceLevelIndicator</code>
+ */
+class ServiceLevelIndicator extends \Google\Protobuf\Internal\Message
+{
+    protected $type;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type \Google\Cloud\Monitoring\V3\BasicSli $basic_sli
+     *           Basic SLI on a well-known service type.
+     *     @type \Google\Cloud\Monitoring\V3\RequestBasedSli $request_based
+     *           Request-based SLIs
+     *     @type \Google\Cloud\Monitoring\V3\WindowsBasedSli $windows_based
+     *           Windows-based SLIs
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Service::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Basic SLI on a well-known service type.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.BasicSli basic_sli = 4;</code>
+     * @return \Google\Cloud\Monitoring\V3\BasicSli|null
+     */
+    public function getBasicSli()
+    {
+        return $this->readOneof(4);
+    }
+
+    public function hasBasicSli()
+    {
+        return $this->hasOneof(4);
+    }
+
+    /**
+     * Basic SLI on a well-known service type.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.BasicSli basic_sli = 4;</code>
+     * @param \Google\Cloud\Monitoring\V3\BasicSli $var
+     * @return $this
+     */
+    public function setBasicSli($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\BasicSli::class);
+        $this->writeOneof(4, $var);
+
+        return $this;
+    }
+
+    /**
+     * Request-based SLIs
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.RequestBasedSli request_based = 1;</code>
+     * @return \Google\Cloud\Monitoring\V3\RequestBasedSli|null
+     */
+    public function getRequestBased()
+    {
+        return $this->readOneof(1);
+    }
+
+    public function hasRequestBased()
+    {
+        return $this->hasOneof(1);
+    }
+
+    /**
+     * Request-based SLIs
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.RequestBasedSli request_based = 1;</code>
+     * @param \Google\Cloud\Monitoring\V3\RequestBasedSli $var
+     * @return $this
+     */
+    public function setRequestBased($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\RequestBasedSli::class);
+        $this->writeOneof(1, $var);
+
+        return $this;
+    }
+
+    /**
+     * Windows-based SLIs
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.WindowsBasedSli windows_based = 2;</code>
+     * @return \Google\Cloud\Monitoring\V3\WindowsBasedSli|null
+     */
+    public function getWindowsBased()
+    {
+        return $this->readOneof(2);
+    }
+
+    public function hasWindowsBased()
+    {
+        return $this->hasOneof(2);
+    }
+
+    /**
+     * Windows-based SLIs
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.WindowsBasedSli windows_based = 2;</code>
+     * @param \Google\Cloud\Monitoring\V3\WindowsBasedSli $var
+     * @return $this
+     */
+    public function setWindowsBased($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\WindowsBasedSli::class);
+        $this->writeOneof(2, $var);
+
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getType()
+    {
+        return $this->whichOneof("type");
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ServiceLevelObjective.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ServiceLevelObjective.php
new file mode 100644
index 000000000000..fa9e65f4985c
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ServiceLevelObjective.php
@@ -0,0 +1,338 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A Service-Level Objective (SLO) describes a level of desired good service. It
+ * consists of a service-level indicator (SLI), a performance goal, and a period
+ * over which the objective is to be evaluated against that goal. The SLO can
+ * use SLIs defined in a number of different manners. Typical SLOs might include
+ * "99% of requests in each rolling week have latency below 200 milliseconds" or
+ * "99.5% of requests in each calendar month return successfully."
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.ServiceLevelObjective</code>
+ */
+class ServiceLevelObjective extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Identifier. Resource name for this `ServiceLevelObjective`. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]/serviceLevelObjectives/[SLO_NAME]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = IDENTIFIER];</code>
+     */
+    protected $name = '';
+    /**
+     * Name used for UI elements listing this SLO.
+     *
+     * Generated from protobuf field <code>string display_name = 11;</code>
+     */
+    protected $display_name = '';
+    /**
+     * The definition of good service, used to measure and calculate the quality
+     * of the `Service`'s performance with respect to a single aspect of service
+     * quality.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.ServiceLevelIndicator service_level_indicator = 3;</code>
+     */
+    protected $service_level_indicator = null;
+    /**
+     * The fraction of service that must be good in order for this objective to be
+     * met. `0 < goal <= 0.9999`.
+     *
+     * Generated from protobuf field <code>double goal = 4;</code>
+     */
+    protected $goal = 0.0;
+    /**
+     * Labels which have been used to annotate the service-level objective. Label
+     * keys must start with a letter. Label keys and values may contain lowercase
+     * letters, numbers, underscores, and dashes. Label keys and values have a
+     * maximum length of 63 characters, and must be less than 128 bytes in size.
+     * Up to 64 label entries may be stored. For labels which do not have a
+     * semantic value, the empty string may be supplied for the label value.
+     *
+     * Generated from protobuf field <code>map<string, string> user_labels = 12;</code>
+     */
+    private $user_labels;
+    protected $period;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Identifier. Resource name for this `ServiceLevelObjective`. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]/serviceLevelObjectives/[SLO_NAME]
+     *     @type string $display_name
+     *           Name used for UI elements listing this SLO.
+     *     @type \Google\Cloud\Monitoring\V3\ServiceLevelIndicator $service_level_indicator
+     *           The definition of good service, used to measure and calculate the quality
+     *           of the `Service`'s performance with respect to a single aspect of service
+     *           quality.
+     *     @type float $goal
+     *           The fraction of service that must be good in order for this objective to be
+     *           met. `0 < goal <= 0.9999`.
+     *     @type \Google\Protobuf\Duration $rolling_period
+     *           A rolling time period, semantically "in the past `<rolling_period>`".
+     *           Must be an integer multiple of 1 day no larger than 30 days.
+     *     @type int $calendar_period
+     *           A calendar period, semantically "since the start of the current
+     *           `<calendar_period>`". At this time, only `DAY`, `WEEK`, `FORTNIGHT`, and
+     *           `MONTH` are supported.
+     *     @type array|\Google\Protobuf\Internal\MapField $user_labels
+     *           Labels which have been used to annotate the service-level objective. Label
+     *           keys must start with a letter. Label keys and values may contain lowercase
+     *           letters, numbers, underscores, and dashes. Label keys and values have a
+     *           maximum length of 63 characters, and must be less than 128 bytes in size.
+     *           Up to 64 label entries may be stored. For labels which do not have a
+     *           semantic value, the empty string may be supplied for the label value.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Service::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Identifier. Resource name for this `ServiceLevelObjective`. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]/serviceLevelObjectives/[SLO_NAME]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = IDENTIFIER];</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Identifier. Resource name for this `ServiceLevelObjective`. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]/serviceLevelObjectives/[SLO_NAME]
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = IDENTIFIER];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * Name used for UI elements listing this SLO.
+     *
+     * Generated from protobuf field <code>string display_name = 11;</code>
+     * @return string
+     */
+    public function getDisplayName()
+    {
+        return $this->display_name;
+    }
+
+    /**
+     * Name used for UI elements listing this SLO.
+     *
+     * Generated from protobuf field <code>string display_name = 11;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setDisplayName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->display_name = $var;
+
+        return $this;
+    }
+
+    /**
+     * The definition of good service, used to measure and calculate the quality
+     * of the `Service`'s performance with respect to a single aspect of service
+     * quality.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.ServiceLevelIndicator service_level_indicator = 3;</code>
+     * @return \Google\Cloud\Monitoring\V3\ServiceLevelIndicator|null
+     */
+    public function getServiceLevelIndicator()
+    {
+        return $this->service_level_indicator;
+    }
+
+    public function hasServiceLevelIndicator()
+    {
+        return isset($this->service_level_indicator);
+    }
+
+    public function clearServiceLevelIndicator()
+    {
+        unset($this->service_level_indicator);
+    }
+
+    /**
+     * The definition of good service, used to measure and calculate the quality
+     * of the `Service`'s performance with respect to a single aspect of service
+     * quality.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.ServiceLevelIndicator service_level_indicator = 3;</code>
+     * @param \Google\Cloud\Monitoring\V3\ServiceLevelIndicator $var
+     * @return $this
+     */
+    public function setServiceLevelIndicator($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\ServiceLevelIndicator::class);
+        $this->service_level_indicator = $var;
+
+        return $this;
+    }
+
+    /**
+     * The fraction of service that must be good in order for this objective to be
+     * met. `0 < goal <= 0.9999`.
+     *
+     * Generated from protobuf field <code>double goal = 4;</code>
+     * @return float
+     */
+    public function getGoal()
+    {
+        return $this->goal;
+    }
+
+    /**
+     * The fraction of service that must be good in order for this objective to be
+     * met. `0 < goal <= 0.9999`.
+     *
+     * Generated from protobuf field <code>double goal = 4;</code>
+     * @param float $var
+     * @return $this
+     */
+    public function setGoal($var)
+    {
+        GPBUtil::checkDouble($var);
+        $this->goal = $var;
+
+        return $this;
+    }
+
+    /**
+     * A rolling time period, semantically "in the past `<rolling_period>`".
+     * Must be an integer multiple of 1 day no larger than 30 days.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration rolling_period = 5;</code>
+     * @return \Google\Protobuf\Duration|null
+     */
+    public function getRollingPeriod()
+    {
+        return $this->readOneof(5);
+    }
+
+    public function hasRollingPeriod()
+    {
+        return $this->hasOneof(5);
+    }
+
+    /**
+     * A rolling time period, semantically "in the past `<rolling_period>`".
+     * Must be an integer multiple of 1 day no larger than 30 days.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration rolling_period = 5;</code>
+     * @param \Google\Protobuf\Duration $var
+     * @return $this
+     */
+    public function setRollingPeriod($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\Duration::class);
+        $this->writeOneof(5, $var);
+
+        return $this;
+    }
+
+    /**
+     * A calendar period, semantically "since the start of the current
+     * `<calendar_period>`". At this time, only `DAY`, `WEEK`, `FORTNIGHT`, and
+     * `MONTH` are supported.
+     *
+     * Generated from protobuf field <code>.google.type.CalendarPeriod calendar_period = 6;</code>
+     * @return int
+     */
+    public function getCalendarPeriod()
+    {
+        return $this->readOneof(6);
+    }
+
+    public function hasCalendarPeriod()
+    {
+        return $this->hasOneof(6);
+    }
+
+    /**
+     * A calendar period, semantically "since the start of the current
+     * `<calendar_period>`". At this time, only `DAY`, `WEEK`, `FORTNIGHT`, and
+     * `MONTH` are supported.
+     *
+     * Generated from protobuf field <code>.google.type.CalendarPeriod calendar_period = 6;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setCalendarPeriod($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Type\CalendarPeriod::class);
+        $this->writeOneof(6, $var);
+
+        return $this;
+    }
+
+    /**
+     * Labels which have been used to annotate the service-level objective. Label
+     * keys must start with a letter. Label keys and values may contain lowercase
+     * letters, numbers, underscores, and dashes. Label keys and values have a
+     * maximum length of 63 characters, and must be less than 128 bytes in size.
+     * Up to 64 label entries may be stored. For labels which do not have a
+     * semantic value, the empty string may be supplied for the label value.
+     *
+     * Generated from protobuf field <code>map<string, string> user_labels = 12;</code>
+     * @return \Google\Protobuf\Internal\MapField
+     */
+    public function getUserLabels()
+    {
+        return $this->user_labels;
+    }
+
+    /**
+     * Labels which have been used to annotate the service-level objective. Label
+     * keys must start with a letter. Label keys and values may contain lowercase
+     * letters, numbers, underscores, and dashes. Label keys and values have a
+     * maximum length of 63 characters, and must be less than 128 bytes in size.
+     * Up to 64 label entries may be stored. For labels which do not have a
+     * semantic value, the empty string may be supplied for the label value.
+     *
+     * Generated from protobuf field <code>map<string, string> user_labels = 12;</code>
+     * @param array|\Google\Protobuf\Internal\MapField $var
+     * @return $this
+     */
+    public function setUserLabels($var)
+    {
+        $arr = GPBUtil::checkMapField($var, \Google\Protobuf\Internal\GPBType::STRING, \Google\Protobuf\Internal\GPBType::STRING);
+        $this->user_labels = $arr;
+
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getPeriod()
+    {
+        return $this->whichOneof("period");
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ServiceLevelObjective/View.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ServiceLevelObjective/View.php
new file mode 100644
index 000000000000..a21fbcb25964
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ServiceLevelObjective/View.php
@@ -0,0 +1,71 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service.proto
+
+namespace Google\Cloud\Monitoring\V3\ServiceLevelObjective;
+
+use UnexpectedValueException;
+
+/**
+ * `ServiceLevelObjective.View` determines what form of
+ * `ServiceLevelObjective` is returned from `GetServiceLevelObjective`,
+ * `ListServiceLevelObjectives`, and `ListServiceLevelObjectiveVersions` RPCs.
+ *
+ * Protobuf type <code>google.monitoring.v3.ServiceLevelObjective.View</code>
+ */
+class View
+{
+    /**
+     * Same as FULL.
+     *
+     * Generated from protobuf enum <code>VIEW_UNSPECIFIED = 0;</code>
+     */
+    const VIEW_UNSPECIFIED = 0;
+    /**
+     * Return the embedded `ServiceLevelIndicator` in the form in which it was
+     * defined. If it was defined using a `BasicSli`, return that `BasicSli`.
+     *
+     * Generated from protobuf enum <code>FULL = 2;</code>
+     */
+    const FULL = 2;
+    /**
+     * For `ServiceLevelIndicator`s using `BasicSli` articulation, instead
+     * return the `ServiceLevelIndicator` with its mode of computation fully
+     * spelled out as a `RequestBasedSli`. For `ServiceLevelIndicator`s using
+     * `RequestBasedSli` or `WindowsBasedSli`, return the
+     * `ServiceLevelIndicator` as it was provided.
+     *
+     * Generated from protobuf enum <code>EXPLICIT = 1;</code>
+     */
+    const EXPLICIT = 1;
+
+    private static $valueToName = [
+        self::VIEW_UNSPECIFIED => 'VIEW_UNSPECIFIED',
+        self::FULL => 'FULL',
+        self::EXPLICIT => 'EXPLICIT',
+    ];
+
+    public static function name($value)
+    {
+        if (!isset(self::$valueToName[$value])) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no name defined for value %s', __CLASS__, $value));
+        }
+        return self::$valueToName[$value];
+    }
+
+
+    public static function value($name)
+    {
+        $const = __CLASS__ . '::' . strtoupper($name);
+        if (!defined($const)) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no value defined for name %s', __CLASS__, $name));
+        }
+        return constant($const);
+    }
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(View::class, \Google\Cloud\Monitoring\V3\ServiceLevelObjective_View::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ServiceTier.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ServiceTier.php
new file mode 100644
index 000000000000..906682308486
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/ServiceTier.php
@@ -0,0 +1,74 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/common.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use UnexpectedValueException;
+
+/**
+ * @deprecated
+ * The tier of service for a Metrics Scope. Please see the
+ * [service tiers
+ * documentation](https://cloud.google.com/monitoring/workspaces/tiers) for more
+ * details.
+ *
+ * Protobuf type <code>google.monitoring.v3.ServiceTier</code>
+ */
+class ServiceTier
+{
+    /**
+     * An invalid sentinel value, used to indicate that a tier has not
+     * been provided explicitly.
+     *
+     * Generated from protobuf enum <code>SERVICE_TIER_UNSPECIFIED = 0;</code>
+     */
+    const SERVICE_TIER_UNSPECIFIED = 0;
+    /**
+     * The Cloud Monitoring Basic tier, a free tier of service that provides basic
+     * features, a moderate allotment of logs, and access to built-in metrics.
+     * A number of features are not available in this tier. For more details,
+     * see [the service tiers
+     * documentation](https://cloud.google.com/monitoring/workspaces/tiers).
+     *
+     * Generated from protobuf enum <code>SERVICE_TIER_BASIC = 1;</code>
+     */
+    const SERVICE_TIER_BASIC = 1;
+    /**
+     * The Cloud Monitoring Premium tier, a higher, more expensive tier of service
+     * that provides access to all Cloud Monitoring features, lets you use Cloud
+     * Monitoring with AWS accounts, and has a larger allotments for logs and
+     * metrics. For more details, see [the service tiers
+     * documentation](https://cloud.google.com/monitoring/workspaces/tiers).
+     *
+     * Generated from protobuf enum <code>SERVICE_TIER_PREMIUM = 2;</code>
+     */
+    const SERVICE_TIER_PREMIUM = 2;
+
+    private static $valueToName = [
+        self::SERVICE_TIER_UNSPECIFIED => 'SERVICE_TIER_UNSPECIFIED',
+        self::SERVICE_TIER_BASIC => 'SERVICE_TIER_BASIC',
+        self::SERVICE_TIER_PREMIUM => 'SERVICE_TIER_PREMIUM',
+    ];
+
+    public static function name($value)
+    {
+        if (!isset(self::$valueToName[$value])) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no name defined for value %s', __CLASS__, $value));
+        }
+        return self::$valueToName[$value];
+    }
+
+
+    public static function value($name)
+    {
+        $const = __CLASS__ . '::' . strtoupper($name);
+        if (!defined($const)) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no value defined for name %s', __CLASS__, $name));
+        }
+        return constant($const);
+    }
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Snooze.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Snooze.php
new file mode 100644
index 000000000000..c5f17a47719f
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Snooze.php
@@ -0,0 +1,224 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/snooze.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A `Snooze` will prevent any alerts from being opened, and close any that
+ * are already open. The `Snooze` will work on alerts that match the
+ * criteria defined in the `Snooze`. The `Snooze` will be active from
+ * `interval.start_time` through `interval.end_time`.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.Snooze</code>
+ */
+class Snooze extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. Identifier. The name of the `Snooze`. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/snoozes/[SNOOZE_ID]
+     * The ID of the `Snooze` will be generated by the system.
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = IDENTIFIER];</code>
+     */
+    protected $name = '';
+    /**
+     * Required. This defines the criteria for applying the `Snooze`. See
+     * `Criteria` for more information.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Snooze.Criteria criteria = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $criteria = null;
+    /**
+     * Required. The `Snooze` will be active from `interval.start_time` through
+     * `interval.end_time`.
+     * `interval.start_time` cannot be in the past. There is a 15 second clock
+     * skew to account for the time it takes for a request to reach the API from
+     * the UI.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TimeInterval interval = 4 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $interval = null;
+    /**
+     * Required. A display name for the `Snooze`. This can be, at most, 512
+     * unicode characters.
+     *
+     * Generated from protobuf field <code>string display_name = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $display_name = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. Identifier. The name of the `Snooze`. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/snoozes/[SNOOZE_ID]
+     *           The ID of the `Snooze` will be generated by the system.
+     *     @type \Google\Cloud\Monitoring\V3\Snooze\Criteria $criteria
+     *           Required. This defines the criteria for applying the `Snooze`. See
+     *           `Criteria` for more information.
+     *     @type \Google\Cloud\Monitoring\V3\TimeInterval $interval
+     *           Required. The `Snooze` will be active from `interval.start_time` through
+     *           `interval.end_time`.
+     *           `interval.start_time` cannot be in the past. There is a 15 second clock
+     *           skew to account for the time it takes for a request to reach the API from
+     *           the UI.
+     *     @type string $display_name
+     *           Required. A display name for the `Snooze`. This can be, at most, 512
+     *           unicode characters.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Snooze::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. Identifier. The name of the `Snooze`. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/snoozes/[SNOOZE_ID]
+     * The ID of the `Snooze` will be generated by the system.
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = IDENTIFIER];</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. Identifier. The name of the `Snooze`. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/snoozes/[SNOOZE_ID]
+     * The ID of the `Snooze` will be generated by the system.
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = IDENTIFIER];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * Required. This defines the criteria for applying the `Snooze`. See
+     * `Criteria` for more information.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Snooze.Criteria criteria = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return \Google\Cloud\Monitoring\V3\Snooze\Criteria|null
+     */
+    public function getCriteria()
+    {
+        return $this->criteria;
+    }
+
+    public function hasCriteria()
+    {
+        return isset($this->criteria);
+    }
+
+    public function clearCriteria()
+    {
+        unset($this->criteria);
+    }
+
+    /**
+     * Required. This defines the criteria for applying the `Snooze`. See
+     * `Criteria` for more information.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Snooze.Criteria criteria = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param \Google\Cloud\Monitoring\V3\Snooze\Criteria $var
+     * @return $this
+     */
+    public function setCriteria($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\Snooze\Criteria::class);
+        $this->criteria = $var;
+
+        return $this;
+    }
+
+    /**
+     * Required. The `Snooze` will be active from `interval.start_time` through
+     * `interval.end_time`.
+     * `interval.start_time` cannot be in the past. There is a 15 second clock
+     * skew to account for the time it takes for a request to reach the API from
+     * the UI.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TimeInterval interval = 4 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return \Google\Cloud\Monitoring\V3\TimeInterval|null
+     */
+    public function getInterval()
+    {
+        return $this->interval;
+    }
+
+    public function hasInterval()
+    {
+        return isset($this->interval);
+    }
+
+    public function clearInterval()
+    {
+        unset($this->interval);
+    }
+
+    /**
+     * Required. The `Snooze` will be active from `interval.start_time` through
+     * `interval.end_time`.
+     * `interval.start_time` cannot be in the past. There is a 15 second clock
+     * skew to account for the time it takes for a request to reach the API from
+     * the UI.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TimeInterval interval = 4 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param \Google\Cloud\Monitoring\V3\TimeInterval $var
+     * @return $this
+     */
+    public function setInterval($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\TimeInterval::class);
+        $this->interval = $var;
+
+        return $this;
+    }
+
+    /**
+     * Required. A display name for the `Snooze`. This can be, at most, 512
+     * unicode characters.
+     *
+     * Generated from protobuf field <code>string display_name = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return string
+     */
+    public function getDisplayName()
+    {
+        return $this->display_name;
+    }
+
+    /**
+     * Required. A display name for the `Snooze`. This can be, at most, 512
+     * unicode characters.
+     *
+     * Generated from protobuf field <code>string display_name = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setDisplayName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->display_name = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Snooze/Criteria.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Snooze/Criteria.php
new file mode 100644
index 000000000000..13e62c6c1855
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/Snooze/Criteria.php
@@ -0,0 +1,88 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/snooze.proto
+
+namespace Google\Cloud\Monitoring\V3\Snooze;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Criteria specific to the `AlertPolicy`s that this `Snooze` applies to. The
+ * `Snooze` will suppress alerts that come from one of the `AlertPolicy`s
+ * whose names are supplied.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.Snooze.Criteria</code>
+ */
+class Criteria extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The specific `AlertPolicy` names for the alert that should be snoozed.
+     * The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/alertPolicies/[POLICY_ID]
+     * There is a limit of 16 policies per snooze. This limit is checked during
+     * snooze creation.
+     *
+     * Generated from protobuf field <code>repeated string policies = 1 [(.google.api.resource_reference) = {</code>
+     */
+    private $policies;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type array<string>|\Google\Protobuf\Internal\RepeatedField $policies
+     *           The specific `AlertPolicy` names for the alert that should be snoozed.
+     *           The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/alertPolicies/[POLICY_ID]
+     *           There is a limit of 16 policies per snooze. This limit is checked during
+     *           snooze creation.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Snooze::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The specific `AlertPolicy` names for the alert that should be snoozed.
+     * The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/alertPolicies/[POLICY_ID]
+     * There is a limit of 16 policies per snooze. This limit is checked during
+     * snooze creation.
+     *
+     * Generated from protobuf field <code>repeated string policies = 1 [(.google.api.resource_reference) = {</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getPolicies()
+    {
+        return $this->policies;
+    }
+
+    /**
+     * The specific `AlertPolicy` names for the alert that should be snoozed.
+     * The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/alertPolicies/[POLICY_ID]
+     * There is a limit of 16 policies per snooze. This limit is checked during
+     * snooze creation.
+     *
+     * Generated from protobuf field <code>repeated string policies = 1 [(.google.api.resource_reference) = {</code>
+     * @param array<string>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setPolicies($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::STRING);
+        $this->policies = $arr;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(Criteria::class, \Google\Cloud\Monitoring\V3\Snooze_Criteria::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/SpanContext.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/SpanContext.php
new file mode 100644
index 000000000000..cfeb31ba8340
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/SpanContext.php
@@ -0,0 +1,91 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/span_context.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The context of a span. This is attached to an
+ * [Exemplar][google.api.Distribution.Exemplar]
+ * in [Distribution][google.api.Distribution] values during aggregation.
+ * It contains the name of a span with format:
+ *     projects/[PROJECT_ID_OR_NUMBER]/traces/[TRACE_ID]/spans/[SPAN_ID]
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.SpanContext</code>
+ */
+class SpanContext extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The resource name of the span. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/traces/[TRACE_ID]/spans/[SPAN_ID]
+     * `[TRACE_ID]` is a unique identifier for a trace within a project;
+     * it is a 32-character hexadecimal encoding of a 16-byte array.
+     * `[SPAN_ID]` is a unique identifier for a span within a trace; it
+     * is a 16-character hexadecimal encoding of an 8-byte array.
+     *
+     * Generated from protobuf field <code>string span_name = 1;</code>
+     */
+    protected $span_name = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $span_name
+     *           The resource name of the span. The format is:
+     *               projects/[PROJECT_ID_OR_NUMBER]/traces/[TRACE_ID]/spans/[SPAN_ID]
+     *           `[TRACE_ID]` is a unique identifier for a trace within a project;
+     *           it is a 32-character hexadecimal encoding of a 16-byte array.
+     *           `[SPAN_ID]` is a unique identifier for a span within a trace; it
+     *           is a 16-character hexadecimal encoding of an 8-byte array.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\SpanContext::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The resource name of the span. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/traces/[TRACE_ID]/spans/[SPAN_ID]
+     * `[TRACE_ID]` is a unique identifier for a trace within a project;
+     * it is a 32-character hexadecimal encoding of a 16-byte array.
+     * `[SPAN_ID]` is a unique identifier for a span within a trace; it
+     * is a 16-character hexadecimal encoding of an 8-byte array.
+     *
+     * Generated from protobuf field <code>string span_name = 1;</code>
+     * @return string
+     */
+    public function getSpanName()
+    {
+        return $this->span_name;
+    }
+
+    /**
+     * The resource name of the span. The format is:
+     *     projects/[PROJECT_ID_OR_NUMBER]/traces/[TRACE_ID]/spans/[SPAN_ID]
+     * `[TRACE_ID]` is a unique identifier for a trace within a project;
+     * it is a 32-character hexadecimal encoding of a 16-byte array.
+     * `[SPAN_ID]` is a unique identifier for a span within a trace; it
+     * is a 16-character hexadecimal encoding of an 8-byte array.
+     *
+     * Generated from protobuf field <code>string span_name = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setSpanName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->span_name = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/SyntheticMonitorTarget.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/SyntheticMonitorTarget.php
new file mode 100644
index 000000000000..8bbfac0f1098
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/SyntheticMonitorTarget.php
@@ -0,0 +1,75 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Describes a Synthetic Monitor to be invoked by Uptime.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.SyntheticMonitorTarget</code>
+ */
+class SyntheticMonitorTarget extends \Google\Protobuf\Internal\Message
+{
+    protected $target;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type \Google\Cloud\Monitoring\V3\SyntheticMonitorTarget\CloudFunctionV2Target $cloud_function_v2
+     *           Target a Synthetic Monitor GCFv2 instance.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Uptime::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Target a Synthetic Monitor GCFv2 instance.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.SyntheticMonitorTarget.CloudFunctionV2Target cloud_function_v2 = 1;</code>
+     * @return \Google\Cloud\Monitoring\V3\SyntheticMonitorTarget\CloudFunctionV2Target|null
+     */
+    public function getCloudFunctionV2()
+    {
+        return $this->readOneof(1);
+    }
+
+    public function hasCloudFunctionV2()
+    {
+        return $this->hasOneof(1);
+    }
+
+    /**
+     * Target a Synthetic Monitor GCFv2 instance.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.SyntheticMonitorTarget.CloudFunctionV2Target cloud_function_v2 = 1;</code>
+     * @param \Google\Cloud\Monitoring\V3\SyntheticMonitorTarget\CloudFunctionV2Target $var
+     * @return $this
+     */
+    public function setCloudFunctionV2($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\SyntheticMonitorTarget\CloudFunctionV2Target::class);
+        $this->writeOneof(1, $var);
+
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getTarget()
+    {
+        return $this->whichOneof("target");
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/SyntheticMonitorTarget/CloudFunctionV2Target.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/SyntheticMonitorTarget/CloudFunctionV2Target.php
new file mode 100644
index 000000000000..1f9b8d546857
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/SyntheticMonitorTarget/CloudFunctionV2Target.php
@@ -0,0 +1,134 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime.proto
+
+namespace Google\Cloud\Monitoring\V3\SyntheticMonitorTarget;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A Synthetic Monitor deployed to a Cloud Functions V2 instance.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.SyntheticMonitorTarget.CloudFunctionV2Target</code>
+ */
+class CloudFunctionV2Target extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. Fully qualified GCFv2 resource name
+     * i.e. `projects/{project}/locations/{location}/functions/{function}`
+     * Required.
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+    /**
+     * Output only. The `cloud_run_revision` Monitored Resource associated with
+     * the GCFv2. The Synthetic Monitor execution results (metrics, logs, and
+     * spans) are reported against this Monitored Resource. This field is output
+     * only.
+     *
+     * Generated from protobuf field <code>.google.api.MonitoredResource cloud_run_revision = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    protected $cloud_run_revision = null;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. Fully qualified GCFv2 resource name
+     *           i.e. `projects/{project}/locations/{location}/functions/{function}`
+     *           Required.
+     *     @type \Google\Api\MonitoredResource $cloud_run_revision
+     *           Output only. The `cloud_run_revision` Monitored Resource associated with
+     *           the GCFv2. The Synthetic Monitor execution results (metrics, logs, and
+     *           spans) are reported against this Monitored Resource. This field is output
+     *           only.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Uptime::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. Fully qualified GCFv2 resource name
+     * i.e. `projects/{project}/locations/{location}/functions/{function}`
+     * Required.
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. Fully qualified GCFv2 resource name
+     * i.e. `projects/{project}/locations/{location}/functions/{function}`
+     * Required.
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * Output only. The `cloud_run_revision` Monitored Resource associated with
+     * the GCFv2. The Synthetic Monitor execution results (metrics, logs, and
+     * spans) are reported against this Monitored Resource. This field is output
+     * only.
+     *
+     * Generated from protobuf field <code>.google.api.MonitoredResource cloud_run_revision = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return \Google\Api\MonitoredResource|null
+     */
+    public function getCloudRunRevision()
+    {
+        return $this->cloud_run_revision;
+    }
+
+    public function hasCloudRunRevision()
+    {
+        return isset($this->cloud_run_revision);
+    }
+
+    public function clearCloudRunRevision()
+    {
+        unset($this->cloud_run_revision);
+    }
+
+    /**
+     * Output only. The `cloud_run_revision` Monitored Resource associated with
+     * the GCFv2. The Synthetic Monitor execution results (metrics, logs, and
+     * spans) are reported against this Monitored Resource. This field is output
+     * only.
+     *
+     * Generated from protobuf field <code>.google.api.MonitoredResource cloud_run_revision = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @param \Google\Api\MonitoredResource $var
+     * @return $this
+     */
+    public function setCloudRunRevision($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Api\MonitoredResource::class);
+        $this->cloud_run_revision = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(CloudFunctionV2Target::class, \Google\Cloud\Monitoring\V3\SyntheticMonitorTarget_CloudFunctionV2Target::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TextLocator.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TextLocator.php
new file mode 100644
index 000000000000..6c6c82460c63
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TextLocator.php
@@ -0,0 +1,303 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A locator for text. Indicates a particular part of the text of a request or
+ * of an object referenced in the request.
+ * For example, suppose the request field `text` contains:
+ *   text: "The quick brown fox jumps over the lazy dog."
+ * Then the locator:
+ *   source: "text"
+ *   start_position {
+ *     line: 1
+ *     column: 17
+ *   }
+ *   end_position {
+ *     line: 1
+ *     column: 19
+ *   }
+ * refers to the part of the text: "fox".
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.TextLocator</code>
+ */
+class TextLocator extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The source of the text. The source may be a field in the request, in which
+     * case its format is the format of the
+     * google.rpc.BadRequest.FieldViolation.field field in
+     * https://cloud.google.com/apis/design/errors#error_details. It may also be
+     * be a source other than the request field (e.g. a macro definition
+     * referenced in the text of the query), in which case this is the name of
+     * the source (e.g. the macro name).
+     *
+     * Generated from protobuf field <code>string source = 1;</code>
+     */
+    protected $source = '';
+    /**
+     * The position of the first byte within the text.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TextLocator.Position start_position = 2;</code>
+     */
+    protected $start_position = null;
+    /**
+     * The position of the last byte within the text.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TextLocator.Position end_position = 3;</code>
+     */
+    protected $end_position = null;
+    /**
+     * If `source`, `start_position`, and `end_position` describe a call on
+     * some object (e.g. a macro in the time series query language text) and a
+     * location is to be designated in that object's text, `nested_locator`
+     * identifies the location within that object.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TextLocator nested_locator = 4;</code>
+     */
+    protected $nested_locator = null;
+    /**
+     * When `nested_locator` is set, this field gives the reason for the nesting.
+     * Usually, the reason is a macro invocation. In that case, the macro name
+     * (including the leading '&#64;') signals the location of the macro call
+     * in the text and a macro argument name (including the leading '$') signals
+     * the location of the macro argument inside the macro body that got
+     * substituted away.
+     *
+     * Generated from protobuf field <code>string nesting_reason = 5;</code>
+     */
+    protected $nesting_reason = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $source
+     *           The source of the text. The source may be a field in the request, in which
+     *           case its format is the format of the
+     *           google.rpc.BadRequest.FieldViolation.field field in
+     *           https://cloud.google.com/apis/design/errors#error_details. It may also be
+     *           be a source other than the request field (e.g. a macro definition
+     *           referenced in the text of the query), in which case this is the name of
+     *           the source (e.g. the macro name).
+     *     @type \Google\Cloud\Monitoring\V3\TextLocator\Position $start_position
+     *           The position of the first byte within the text.
+     *     @type \Google\Cloud\Monitoring\V3\TextLocator\Position $end_position
+     *           The position of the last byte within the text.
+     *     @type \Google\Cloud\Monitoring\V3\TextLocator $nested_locator
+     *           If `source`, `start_position`, and `end_position` describe a call on
+     *           some object (e.g. a macro in the time series query language text) and a
+     *           location is to be designated in that object's text, `nested_locator`
+     *           identifies the location within that object.
+     *     @type string $nesting_reason
+     *           When `nested_locator` is set, this field gives the reason for the nesting.
+     *           Usually, the reason is a macro invocation. In that case, the macro name
+     *           (including the leading '&#64;') signals the location of the macro call
+     *           in the text and a macro argument name (including the leading '$') signals
+     *           the location of the macro argument inside the macro body that got
+     *           substituted away.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Metric::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The source of the text. The source may be a field in the request, in which
+     * case its format is the format of the
+     * google.rpc.BadRequest.FieldViolation.field field in
+     * https://cloud.google.com/apis/design/errors#error_details. It may also be
+     * be a source other than the request field (e.g. a macro definition
+     * referenced in the text of the query), in which case this is the name of
+     * the source (e.g. the macro name).
+     *
+     * Generated from protobuf field <code>string source = 1;</code>
+     * @return string
+     */
+    public function getSource()
+    {
+        return $this->source;
+    }
+
+    /**
+     * The source of the text. The source may be a field in the request, in which
+     * case its format is the format of the
+     * google.rpc.BadRequest.FieldViolation.field field in
+     * https://cloud.google.com/apis/design/errors#error_details. It may also be
+     * be a source other than the request field (e.g. a macro definition
+     * referenced in the text of the query), in which case this is the name of
+     * the source (e.g. the macro name).
+     *
+     * Generated from protobuf field <code>string source = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setSource($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->source = $var;
+
+        return $this;
+    }
+
+    /**
+     * The position of the first byte within the text.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TextLocator.Position start_position = 2;</code>
+     * @return \Google\Cloud\Monitoring\V3\TextLocator\Position|null
+     */
+    public function getStartPosition()
+    {
+        return $this->start_position;
+    }
+
+    public function hasStartPosition()
+    {
+        return isset($this->start_position);
+    }
+
+    public function clearStartPosition()
+    {
+        unset($this->start_position);
+    }
+
+    /**
+     * The position of the first byte within the text.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TextLocator.Position start_position = 2;</code>
+     * @param \Google\Cloud\Monitoring\V3\TextLocator\Position $var
+     * @return $this
+     */
+    public function setStartPosition($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\TextLocator\Position::class);
+        $this->start_position = $var;
+
+        return $this;
+    }
+
+    /**
+     * The position of the last byte within the text.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TextLocator.Position end_position = 3;</code>
+     * @return \Google\Cloud\Monitoring\V3\TextLocator\Position|null
+     */
+    public function getEndPosition()
+    {
+        return $this->end_position;
+    }
+
+    public function hasEndPosition()
+    {
+        return isset($this->end_position);
+    }
+
+    public function clearEndPosition()
+    {
+        unset($this->end_position);
+    }
+
+    /**
+     * The position of the last byte within the text.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TextLocator.Position end_position = 3;</code>
+     * @param \Google\Cloud\Monitoring\V3\TextLocator\Position $var
+     * @return $this
+     */
+    public function setEndPosition($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\TextLocator\Position::class);
+        $this->end_position = $var;
+
+        return $this;
+    }
+
+    /**
+     * If `source`, `start_position`, and `end_position` describe a call on
+     * some object (e.g. a macro in the time series query language text) and a
+     * location is to be designated in that object's text, `nested_locator`
+     * identifies the location within that object.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TextLocator nested_locator = 4;</code>
+     * @return \Google\Cloud\Monitoring\V3\TextLocator|null
+     */
+    public function getNestedLocator()
+    {
+        return $this->nested_locator;
+    }
+
+    public function hasNestedLocator()
+    {
+        return isset($this->nested_locator);
+    }
+
+    public function clearNestedLocator()
+    {
+        unset($this->nested_locator);
+    }
+
+    /**
+     * If `source`, `start_position`, and `end_position` describe a call on
+     * some object (e.g. a macro in the time series query language text) and a
+     * location is to be designated in that object's text, `nested_locator`
+     * identifies the location within that object.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TextLocator nested_locator = 4;</code>
+     * @param \Google\Cloud\Monitoring\V3\TextLocator $var
+     * @return $this
+     */
+    public function setNestedLocator($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\TextLocator::class);
+        $this->nested_locator = $var;
+
+        return $this;
+    }
+
+    /**
+     * When `nested_locator` is set, this field gives the reason for the nesting.
+     * Usually, the reason is a macro invocation. In that case, the macro name
+     * (including the leading '&#64;') signals the location of the macro call
+     * in the text and a macro argument name (including the leading '$') signals
+     * the location of the macro argument inside the macro body that got
+     * substituted away.
+     *
+     * Generated from protobuf field <code>string nesting_reason = 5;</code>
+     * @return string
+     */
+    public function getNestingReason()
+    {
+        return $this->nesting_reason;
+    }
+
+    /**
+     * When `nested_locator` is set, this field gives the reason for the nesting.
+     * Usually, the reason is a macro invocation. In that case, the macro name
+     * (including the leading '&#64;') signals the location of the macro call
+     * in the text and a macro argument name (including the leading '$') signals
+     * the location of the macro argument inside the macro body that got
+     * substituted away.
+     *
+     * Generated from protobuf field <code>string nesting_reason = 5;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setNestingReason($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->nesting_reason = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TextLocator/Position.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TextLocator/Position.php
new file mode 100644
index 000000000000..bd81e7bff71b
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TextLocator/Position.php
@@ -0,0 +1,108 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric.proto
+
+namespace Google\Cloud\Monitoring\V3\TextLocator;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The position of a byte within the text.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.TextLocator.Position</code>
+ */
+class Position extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The line, starting with 1, where the byte is positioned.
+     *
+     * Generated from protobuf field <code>int32 line = 1;</code>
+     */
+    protected $line = 0;
+    /**
+     * The column within the line, starting with 1, where the byte is
+     * positioned. This is a byte index even though the text is UTF-8.
+     *
+     * Generated from protobuf field <code>int32 column = 2;</code>
+     */
+    protected $column = 0;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type int $line
+     *           The line, starting with 1, where the byte is positioned.
+     *     @type int $column
+     *           The column within the line, starting with 1, where the byte is
+     *           positioned. This is a byte index even though the text is UTF-8.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Metric::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The line, starting with 1, where the byte is positioned.
+     *
+     * Generated from protobuf field <code>int32 line = 1;</code>
+     * @return int
+     */
+    public function getLine()
+    {
+        return $this->line;
+    }
+
+    /**
+     * The line, starting with 1, where the byte is positioned.
+     *
+     * Generated from protobuf field <code>int32 line = 1;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setLine($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->line = $var;
+
+        return $this;
+    }
+
+    /**
+     * The column within the line, starting with 1, where the byte is
+     * positioned. This is a byte index even though the text is UTF-8.
+     *
+     * Generated from protobuf field <code>int32 column = 2;</code>
+     * @return int
+     */
+    public function getColumn()
+    {
+        return $this->column;
+    }
+
+    /**
+     * The column within the line, starting with 1, where the byte is
+     * positioned. This is a byte index even though the text is UTF-8.
+     *
+     * Generated from protobuf field <code>int32 column = 2;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setColumn($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->column = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(Position::class, \Google\Cloud\Monitoring\V3\TextLocator_Position::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TimeInterval.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TimeInterval.php
new file mode 100644
index 000000000000..1869cd41c8a9
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TimeInterval.php
@@ -0,0 +1,165 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/common.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Describes a time interval:
+ *   * Reads: A half-open time interval. It includes the end time but
+ *     excludes the start time: `(startTime, endTime]`. The start time
+ *     must be specified, must be earlier than the end time, and should be
+ *     no older than the data retention period for the metric.
+ *   * Writes: A closed time interval. It extends from the start time to the end
+ *   time,
+ *     and includes both: `[startTime, endTime]`. Valid time intervals
+ *     depend on the
+ *     [`MetricKind`](https://cloud.google.com/monitoring/api/ref_v3/rest/v3/projects.metricDescriptors#MetricKind)
+ *     of the metric value. The end time must not be earlier than the start
+ *     time, and the end time must not be more than 25 hours in the past or more
+ *     than five minutes in the future.
+ *     * For `GAUGE` metrics, the `startTime` value is technically optional; if
+ *       no value is specified, the start time defaults to the value of the
+ *       end time, and the interval represents a single point in time. If both
+ *       start and end times are specified, they must be identical. Such an
+ *       interval is valid only for `GAUGE` metrics, which are point-in-time
+ *       measurements. The end time of a new interval must be at least a
+ *       millisecond after the end time of the previous interval.
+ *     * For `DELTA` metrics, the start time and end time must specify a
+ *       non-zero interval, with subsequent points specifying contiguous and
+ *       non-overlapping intervals. For `DELTA` metrics, the start time of
+ *       the next interval must be at least a millisecond after the end time
+ *       of the previous interval.
+ *     * For `CUMULATIVE` metrics, the start time and end time must specify a
+ *       non-zero interval, with subsequent points specifying the same
+ *       start time and increasing end times, until an event resets the
+ *       cumulative value to zero and sets a new start time for the following
+ *       points. The new start time must be at least a millisecond after the
+ *       end time of the previous interval.
+ *     * The start time of a new interval must be at least a millisecond after
+ *     the
+ *       end time of the previous interval because intervals are closed. If the
+ *       start time of a new interval is the same as the end time of the
+ *       previous interval, then data written at the new start time could
+ *       overwrite data written at the previous end time.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.TimeInterval</code>
+ */
+class TimeInterval extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The end of the time interval.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Timestamp end_time = 2;</code>
+     */
+    protected $end_time = null;
+    /**
+     * Optional. The beginning of the time interval.  The default value
+     * for the start time is the end time. The start time must not be
+     * later than the end time.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Timestamp start_time = 1;</code>
+     */
+    protected $start_time = null;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type \Google\Protobuf\Timestamp $end_time
+     *           Required. The end of the time interval.
+     *     @type \Google\Protobuf\Timestamp $start_time
+     *           Optional. The beginning of the time interval.  The default value
+     *           for the start time is the end time. The start time must not be
+     *           later than the end time.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Common::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The end of the time interval.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Timestamp end_time = 2;</code>
+     * @return \Google\Protobuf\Timestamp|null
+     */
+    public function getEndTime()
+    {
+        return $this->end_time;
+    }
+
+    public function hasEndTime()
+    {
+        return isset($this->end_time);
+    }
+
+    public function clearEndTime()
+    {
+        unset($this->end_time);
+    }
+
+    /**
+     * Required. The end of the time interval.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Timestamp end_time = 2;</code>
+     * @param \Google\Protobuf\Timestamp $var
+     * @return $this
+     */
+    public function setEndTime($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\Timestamp::class);
+        $this->end_time = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional. The beginning of the time interval.  The default value
+     * for the start time is the end time. The start time must not be
+     * later than the end time.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Timestamp start_time = 1;</code>
+     * @return \Google\Protobuf\Timestamp|null
+     */
+    public function getStartTime()
+    {
+        return $this->start_time;
+    }
+
+    public function hasStartTime()
+    {
+        return isset($this->start_time);
+    }
+
+    public function clearStartTime()
+    {
+        unset($this->start_time);
+    }
+
+    /**
+     * Optional. The beginning of the time interval.  The default value
+     * for the start time is the end time. The start time must not be
+     * later than the end time.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Timestamp start_time = 1;</code>
+     * @param \Google\Protobuf\Timestamp $var
+     * @return $this
+     */
+    public function setStartTime($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\Timestamp::class);
+        $this->start_time = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TimeSeries.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TimeSeries.php
new file mode 100644
index 000000000000..0e327025f0d8
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TimeSeries.php
@@ -0,0 +1,454 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A collection of data points that describes the time-varying values
+ * of a metric. A time series is identified by a combination of a
+ * fully-specified monitored resource and a fully-specified metric.
+ * This type is used for both listing and creating time series.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.TimeSeries</code>
+ */
+class TimeSeries extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The associated metric. A fully-specified metric used to identify the time
+     * series.
+     *
+     * Generated from protobuf field <code>.google.api.Metric metric = 1;</code>
+     */
+    protected $metric = null;
+    /**
+     * The associated monitored resource.  Custom metrics can use only certain
+     * monitored resource types in their time series data. For more information,
+     * see [Monitored resources for custom
+     * metrics](https://cloud.google.com/monitoring/custom-metrics/creating-metrics#custom-metric-resources).
+     *
+     * Generated from protobuf field <code>.google.api.MonitoredResource resource = 2;</code>
+     */
+    protected $resource = null;
+    /**
+     * Output only. The associated monitored resource metadata. When reading a
+     * time series, this field will include metadata labels that are explicitly
+     * named in the reduction. When creating a time series, this field is ignored.
+     *
+     * Generated from protobuf field <code>.google.api.MonitoredResourceMetadata metadata = 7;</code>
+     */
+    protected $metadata = null;
+    /**
+     * The metric kind of the time series. When listing time series, this metric
+     * kind might be different from the metric kind of the associated metric if
+     * this time series is an alignment or reduction of other time series.
+     * When creating a time series, this field is optional. If present, it must be
+     * the same as the metric kind of the associated metric. If the associated
+     * metric's descriptor must be auto-created, then this field specifies the
+     * metric kind of the new descriptor and must be either `GAUGE` (the default)
+     * or `CUMULATIVE`.
+     *
+     * Generated from protobuf field <code>.google.api.MetricDescriptor.MetricKind metric_kind = 3;</code>
+     */
+    protected $metric_kind = 0;
+    /**
+     * The value type of the time series. When listing time series, this value
+     * type might be different from the value type of the associated metric if
+     * this time series is an alignment or reduction of other time series.
+     * When creating a time series, this field is optional. If present, it must be
+     * the same as the type of the data in the `points` field.
+     *
+     * Generated from protobuf field <code>.google.api.MetricDescriptor.ValueType value_type = 4;</code>
+     */
+    protected $value_type = 0;
+    /**
+     * The data points of this time series. When listing time series, points are
+     * returned in reverse time order.
+     * When creating a time series, this field must contain exactly one point and
+     * the point's type must be the same as the value type of the associated
+     * metric. If the associated metric's descriptor must be auto-created, then
+     * the value type of the descriptor is determined by the point's type, which
+     * must be `BOOL`, `INT64`, `DOUBLE`, or `DISTRIBUTION`.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.Point points = 5;</code>
+     */
+    private $points;
+    /**
+     * The units in which the metric value is reported. It is only applicable
+     * if the `value_type` is `INT64`, `DOUBLE`, or `DISTRIBUTION`. The `unit`
+     * defines the representation of the stored metric values. This field can only
+     * be changed through CreateTimeSeries when it is empty.
+     *
+     * Generated from protobuf field <code>string unit = 8;</code>
+     */
+    protected $unit = '';
+    /**
+     * Input only. A detailed description of the time series that will be
+     * associated with the
+     * [google.api.MetricDescriptor][google.api.MetricDescriptor] for the metric.
+     * Once set, this field cannot be changed through CreateTimeSeries.
+     *
+     * Generated from protobuf field <code>string description = 9;</code>
+     */
+    protected $description = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type \Google\Api\Metric $metric
+     *           The associated metric. A fully-specified metric used to identify the time
+     *           series.
+     *     @type \Google\Api\MonitoredResource $resource
+     *           The associated monitored resource.  Custom metrics can use only certain
+     *           monitored resource types in their time series data. For more information,
+     *           see [Monitored resources for custom
+     *           metrics](https://cloud.google.com/monitoring/custom-metrics/creating-metrics#custom-metric-resources).
+     *     @type \Google\Api\MonitoredResourceMetadata $metadata
+     *           Output only. The associated monitored resource metadata. When reading a
+     *           time series, this field will include metadata labels that are explicitly
+     *           named in the reduction. When creating a time series, this field is ignored.
+     *     @type int $metric_kind
+     *           The metric kind of the time series. When listing time series, this metric
+     *           kind might be different from the metric kind of the associated metric if
+     *           this time series is an alignment or reduction of other time series.
+     *           When creating a time series, this field is optional. If present, it must be
+     *           the same as the metric kind of the associated metric. If the associated
+     *           metric's descriptor must be auto-created, then this field specifies the
+     *           metric kind of the new descriptor and must be either `GAUGE` (the default)
+     *           or `CUMULATIVE`.
+     *     @type int $value_type
+     *           The value type of the time series. When listing time series, this value
+     *           type might be different from the value type of the associated metric if
+     *           this time series is an alignment or reduction of other time series.
+     *           When creating a time series, this field is optional. If present, it must be
+     *           the same as the type of the data in the `points` field.
+     *     @type array<\Google\Cloud\Monitoring\V3\Point>|\Google\Protobuf\Internal\RepeatedField $points
+     *           The data points of this time series. When listing time series, points are
+     *           returned in reverse time order.
+     *           When creating a time series, this field must contain exactly one point and
+     *           the point's type must be the same as the value type of the associated
+     *           metric. If the associated metric's descriptor must be auto-created, then
+     *           the value type of the descriptor is determined by the point's type, which
+     *           must be `BOOL`, `INT64`, `DOUBLE`, or `DISTRIBUTION`.
+     *     @type string $unit
+     *           The units in which the metric value is reported. It is only applicable
+     *           if the `value_type` is `INT64`, `DOUBLE`, or `DISTRIBUTION`. The `unit`
+     *           defines the representation of the stored metric values. This field can only
+     *           be changed through CreateTimeSeries when it is empty.
+     *     @type string $description
+     *           Input only. A detailed description of the time series that will be
+     *           associated with the
+     *           [google.api.MetricDescriptor][google.api.MetricDescriptor] for the metric.
+     *           Once set, this field cannot be changed through CreateTimeSeries.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Metric::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The associated metric. A fully-specified metric used to identify the time
+     * series.
+     *
+     * Generated from protobuf field <code>.google.api.Metric metric = 1;</code>
+     * @return \Google\Api\Metric|null
+     */
+    public function getMetric()
+    {
+        return $this->metric;
+    }
+
+    public function hasMetric()
+    {
+        return isset($this->metric);
+    }
+
+    public function clearMetric()
+    {
+        unset($this->metric);
+    }
+
+    /**
+     * The associated metric. A fully-specified metric used to identify the time
+     * series.
+     *
+     * Generated from protobuf field <code>.google.api.Metric metric = 1;</code>
+     * @param \Google\Api\Metric $var
+     * @return $this
+     */
+    public function setMetric($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Api\Metric::class);
+        $this->metric = $var;
+
+        return $this;
+    }
+
+    /**
+     * The associated monitored resource.  Custom metrics can use only certain
+     * monitored resource types in their time series data. For more information,
+     * see [Monitored resources for custom
+     * metrics](https://cloud.google.com/monitoring/custom-metrics/creating-metrics#custom-metric-resources).
+     *
+     * Generated from protobuf field <code>.google.api.MonitoredResource resource = 2;</code>
+     * @return \Google\Api\MonitoredResource|null
+     */
+    public function getResource()
+    {
+        return $this->resource;
+    }
+
+    public function hasResource()
+    {
+        return isset($this->resource);
+    }
+
+    public function clearResource()
+    {
+        unset($this->resource);
+    }
+
+    /**
+     * The associated monitored resource.  Custom metrics can use only certain
+     * monitored resource types in their time series data. For more information,
+     * see [Monitored resources for custom
+     * metrics](https://cloud.google.com/monitoring/custom-metrics/creating-metrics#custom-metric-resources).
+     *
+     * Generated from protobuf field <code>.google.api.MonitoredResource resource = 2;</code>
+     * @param \Google\Api\MonitoredResource $var
+     * @return $this
+     */
+    public function setResource($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Api\MonitoredResource::class);
+        $this->resource = $var;
+
+        return $this;
+    }
+
+    /**
+     * Output only. The associated monitored resource metadata. When reading a
+     * time series, this field will include metadata labels that are explicitly
+     * named in the reduction. When creating a time series, this field is ignored.
+     *
+     * Generated from protobuf field <code>.google.api.MonitoredResourceMetadata metadata = 7;</code>
+     * @return \Google\Api\MonitoredResourceMetadata|null
+     */
+    public function getMetadata()
+    {
+        return $this->metadata;
+    }
+
+    public function hasMetadata()
+    {
+        return isset($this->metadata);
+    }
+
+    public function clearMetadata()
+    {
+        unset($this->metadata);
+    }
+
+    /**
+     * Output only. The associated monitored resource metadata. When reading a
+     * time series, this field will include metadata labels that are explicitly
+     * named in the reduction. When creating a time series, this field is ignored.
+     *
+     * Generated from protobuf field <code>.google.api.MonitoredResourceMetadata metadata = 7;</code>
+     * @param \Google\Api\MonitoredResourceMetadata $var
+     * @return $this
+     */
+    public function setMetadata($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Api\MonitoredResourceMetadata::class);
+        $this->metadata = $var;
+
+        return $this;
+    }
+
+    /**
+     * The metric kind of the time series. When listing time series, this metric
+     * kind might be different from the metric kind of the associated metric if
+     * this time series is an alignment or reduction of other time series.
+     * When creating a time series, this field is optional. If present, it must be
+     * the same as the metric kind of the associated metric. If the associated
+     * metric's descriptor must be auto-created, then this field specifies the
+     * metric kind of the new descriptor and must be either `GAUGE` (the default)
+     * or `CUMULATIVE`.
+     *
+     * Generated from protobuf field <code>.google.api.MetricDescriptor.MetricKind metric_kind = 3;</code>
+     * @return int
+     */
+    public function getMetricKind()
+    {
+        return $this->metric_kind;
+    }
+
+    /**
+     * The metric kind of the time series. When listing time series, this metric
+     * kind might be different from the metric kind of the associated metric if
+     * this time series is an alignment or reduction of other time series.
+     * When creating a time series, this field is optional. If present, it must be
+     * the same as the metric kind of the associated metric. If the associated
+     * metric's descriptor must be auto-created, then this field specifies the
+     * metric kind of the new descriptor and must be either `GAUGE` (the default)
+     * or `CUMULATIVE`.
+     *
+     * Generated from protobuf field <code>.google.api.MetricDescriptor.MetricKind metric_kind = 3;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setMetricKind($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Api\MetricDescriptor\MetricKind::class);
+        $this->metric_kind = $var;
+
+        return $this;
+    }
+
+    /**
+     * The value type of the time series. When listing time series, this value
+     * type might be different from the value type of the associated metric if
+     * this time series is an alignment or reduction of other time series.
+     * When creating a time series, this field is optional. If present, it must be
+     * the same as the type of the data in the `points` field.
+     *
+     * Generated from protobuf field <code>.google.api.MetricDescriptor.ValueType value_type = 4;</code>
+     * @return int
+     */
+    public function getValueType()
+    {
+        return $this->value_type;
+    }
+
+    /**
+     * The value type of the time series. When listing time series, this value
+     * type might be different from the value type of the associated metric if
+     * this time series is an alignment or reduction of other time series.
+     * When creating a time series, this field is optional. If present, it must be
+     * the same as the type of the data in the `points` field.
+     *
+     * Generated from protobuf field <code>.google.api.MetricDescriptor.ValueType value_type = 4;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setValueType($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Api\MetricDescriptor\ValueType::class);
+        $this->value_type = $var;
+
+        return $this;
+    }
+
+    /**
+     * The data points of this time series. When listing time series, points are
+     * returned in reverse time order.
+     * When creating a time series, this field must contain exactly one point and
+     * the point's type must be the same as the value type of the associated
+     * metric. If the associated metric's descriptor must be auto-created, then
+     * the value type of the descriptor is determined by the point's type, which
+     * must be `BOOL`, `INT64`, `DOUBLE`, or `DISTRIBUTION`.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.Point points = 5;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getPoints()
+    {
+        return $this->points;
+    }
+
+    /**
+     * The data points of this time series. When listing time series, points are
+     * returned in reverse time order.
+     * When creating a time series, this field must contain exactly one point and
+     * the point's type must be the same as the value type of the associated
+     * metric. If the associated metric's descriptor must be auto-created, then
+     * the value type of the descriptor is determined by the point's type, which
+     * must be `BOOL`, `INT64`, `DOUBLE`, or `DISTRIBUTION`.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.Point points = 5;</code>
+     * @param array<\Google\Cloud\Monitoring\V3\Point>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setPoints($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\Point::class);
+        $this->points = $arr;
+
+        return $this;
+    }
+
+    /**
+     * The units in which the metric value is reported. It is only applicable
+     * if the `value_type` is `INT64`, `DOUBLE`, or `DISTRIBUTION`. The `unit`
+     * defines the representation of the stored metric values. This field can only
+     * be changed through CreateTimeSeries when it is empty.
+     *
+     * Generated from protobuf field <code>string unit = 8;</code>
+     * @return string
+     */
+    public function getUnit()
+    {
+        return $this->unit;
+    }
+
+    /**
+     * The units in which the metric value is reported. It is only applicable
+     * if the `value_type` is `INT64`, `DOUBLE`, or `DISTRIBUTION`. The `unit`
+     * defines the representation of the stored metric values. This field can only
+     * be changed through CreateTimeSeries when it is empty.
+     *
+     * Generated from protobuf field <code>string unit = 8;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setUnit($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->unit = $var;
+
+        return $this;
+    }
+
+    /**
+     * Input only. A detailed description of the time series that will be
+     * associated with the
+     * [google.api.MetricDescriptor][google.api.MetricDescriptor] for the metric.
+     * Once set, this field cannot be changed through CreateTimeSeries.
+     *
+     * Generated from protobuf field <code>string description = 9;</code>
+     * @return string
+     */
+    public function getDescription()
+    {
+        return $this->description;
+    }
+
+    /**
+     * Input only. A detailed description of the time series that will be
+     * associated with the
+     * [google.api.MetricDescriptor][google.api.MetricDescriptor] for the metric.
+     * Once set, this field cannot be changed through CreateTimeSeries.
+     *
+     * Generated from protobuf field <code>string description = 9;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setDescription($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->description = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TimeSeriesData.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TimeSeriesData.php
new file mode 100644
index 000000000000..4c91cd6c80ab
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TimeSeriesData.php
@@ -0,0 +1,114 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Represents the values of a time series associated with a
+ * TimeSeriesDescriptor.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.TimeSeriesData</code>
+ */
+class TimeSeriesData extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The values of the labels in the time series identifier, given in the same
+     * order as the `label_descriptors` field of the TimeSeriesDescriptor
+     * associated with this object. Each value must have a value of the type
+     * given in the corresponding entry of `label_descriptors`.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.LabelValue label_values = 1;</code>
+     */
+    private $label_values;
+    /**
+     * The points in the time series.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.TimeSeriesData.PointData point_data = 2;</code>
+     */
+    private $point_data;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type array<\Google\Cloud\Monitoring\V3\LabelValue>|\Google\Protobuf\Internal\RepeatedField $label_values
+     *           The values of the labels in the time series identifier, given in the same
+     *           order as the `label_descriptors` field of the TimeSeriesDescriptor
+     *           associated with this object. Each value must have a value of the type
+     *           given in the corresponding entry of `label_descriptors`.
+     *     @type array<\Google\Cloud\Monitoring\V3\TimeSeriesData\PointData>|\Google\Protobuf\Internal\RepeatedField $point_data
+     *           The points in the time series.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Metric::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The values of the labels in the time series identifier, given in the same
+     * order as the `label_descriptors` field of the TimeSeriesDescriptor
+     * associated with this object. Each value must have a value of the type
+     * given in the corresponding entry of `label_descriptors`.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.LabelValue label_values = 1;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getLabelValues()
+    {
+        return $this->label_values;
+    }
+
+    /**
+     * The values of the labels in the time series identifier, given in the same
+     * order as the `label_descriptors` field of the TimeSeriesDescriptor
+     * associated with this object. Each value must have a value of the type
+     * given in the corresponding entry of `label_descriptors`.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.LabelValue label_values = 1;</code>
+     * @param array<\Google\Cloud\Monitoring\V3\LabelValue>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setLabelValues($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\LabelValue::class);
+        $this->label_values = $arr;
+
+        return $this;
+    }
+
+    /**
+     * The points in the time series.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.TimeSeriesData.PointData point_data = 2;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getPointData()
+    {
+        return $this->point_data;
+    }
+
+    /**
+     * The points in the time series.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.TimeSeriesData.PointData point_data = 2;</code>
+     * @param array<\Google\Cloud\Monitoring\V3\TimeSeriesData\PointData>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setPointData($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\TimeSeriesData\PointData::class);
+        $this->point_data = $arr;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TimeSeriesData/PointData.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TimeSeriesData/PointData.php
new file mode 100644
index 000000000000..9aa86421aa77
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TimeSeriesData/PointData.php
@@ -0,0 +1,116 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric.proto
+
+namespace Google\Cloud\Monitoring\V3\TimeSeriesData;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A point's value columns and time interval. Each point has one or more
+ * point values corresponding to the entries in `point_descriptors` field in
+ * the TimeSeriesDescriptor associated with this object.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.TimeSeriesData.PointData</code>
+ */
+class PointData extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The values that make up the point.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.TypedValue values = 1;</code>
+     */
+    private $values;
+    /**
+     * The time interval associated with the point.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TimeInterval time_interval = 2;</code>
+     */
+    protected $time_interval = null;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type array<\Google\Cloud\Monitoring\V3\TypedValue>|\Google\Protobuf\Internal\RepeatedField $values
+     *           The values that make up the point.
+     *     @type \Google\Cloud\Monitoring\V3\TimeInterval $time_interval
+     *           The time interval associated with the point.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Metric::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The values that make up the point.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.TypedValue values = 1;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getValues()
+    {
+        return $this->values;
+    }
+
+    /**
+     * The values that make up the point.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.TypedValue values = 1;</code>
+     * @param array<\Google\Cloud\Monitoring\V3\TypedValue>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setValues($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\TypedValue::class);
+        $this->values = $arr;
+
+        return $this;
+    }
+
+    /**
+     * The time interval associated with the point.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TimeInterval time_interval = 2;</code>
+     * @return \Google\Cloud\Monitoring\V3\TimeInterval|null
+     */
+    public function getTimeInterval()
+    {
+        return $this->time_interval;
+    }
+
+    public function hasTimeInterval()
+    {
+        return isset($this->time_interval);
+    }
+
+    public function clearTimeInterval()
+    {
+        unset($this->time_interval);
+    }
+
+    /**
+     * The time interval associated with the point.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.TimeInterval time_interval = 2;</code>
+     * @param \Google\Cloud\Monitoring\V3\TimeInterval $var
+     * @return $this
+     */
+    public function setTimeInterval($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\TimeInterval::class);
+        $this->time_interval = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(PointData::class, \Google\Cloud\Monitoring\V3\TimeSeriesData_PointData::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TimeSeriesDescriptor.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TimeSeriesDescriptor.php
new file mode 100644
index 000000000000..ec714c4abc24
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TimeSeriesDescriptor.php
@@ -0,0 +1,101 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A descriptor for the labels and points in a time series.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.TimeSeriesDescriptor</code>
+ */
+class TimeSeriesDescriptor extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Descriptors for the labels.
+     *
+     * Generated from protobuf field <code>repeated .google.api.LabelDescriptor label_descriptors = 1;</code>
+     */
+    private $label_descriptors;
+    /**
+     * Descriptors for the point data value columns.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.TimeSeriesDescriptor.ValueDescriptor point_descriptors = 5;</code>
+     */
+    private $point_descriptors;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type array<\Google\Api\LabelDescriptor>|\Google\Protobuf\Internal\RepeatedField $label_descriptors
+     *           Descriptors for the labels.
+     *     @type array<\Google\Cloud\Monitoring\V3\TimeSeriesDescriptor\ValueDescriptor>|\Google\Protobuf\Internal\RepeatedField $point_descriptors
+     *           Descriptors for the point data value columns.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Metric::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Descriptors for the labels.
+     *
+     * Generated from protobuf field <code>repeated .google.api.LabelDescriptor label_descriptors = 1;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getLabelDescriptors()
+    {
+        return $this->label_descriptors;
+    }
+
+    /**
+     * Descriptors for the labels.
+     *
+     * Generated from protobuf field <code>repeated .google.api.LabelDescriptor label_descriptors = 1;</code>
+     * @param array<\Google\Api\LabelDescriptor>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setLabelDescriptors($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Api\LabelDescriptor::class);
+        $this->label_descriptors = $arr;
+
+        return $this;
+    }
+
+    /**
+     * Descriptors for the point data value columns.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.TimeSeriesDescriptor.ValueDescriptor point_descriptors = 5;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getPointDescriptors()
+    {
+        return $this->point_descriptors;
+    }
+
+    /**
+     * Descriptors for the point data value columns.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.TimeSeriesDescriptor.ValueDescriptor point_descriptors = 5;</code>
+     * @param array<\Google\Cloud\Monitoring\V3\TimeSeriesDescriptor\ValueDescriptor>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setPointDescriptors($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\TimeSeriesDescriptor\ValueDescriptor::class);
+        $this->point_descriptors = $arr;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TimeSeriesDescriptor/ValueDescriptor.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TimeSeriesDescriptor/ValueDescriptor.php
new file mode 100644
index 000000000000..ac5dbc3a79e6
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TimeSeriesDescriptor/ValueDescriptor.php
@@ -0,0 +1,184 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/metric.proto
+
+namespace Google\Cloud\Monitoring\V3\TimeSeriesDescriptor;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A descriptor for the value columns in a data point.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.TimeSeriesDescriptor.ValueDescriptor</code>
+ */
+class ValueDescriptor extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The value key.
+     *
+     * Generated from protobuf field <code>string key = 1;</code>
+     */
+    protected $key = '';
+    /**
+     * The value type.
+     *
+     * Generated from protobuf field <code>.google.api.MetricDescriptor.ValueType value_type = 2;</code>
+     */
+    protected $value_type = 0;
+    /**
+     * The value stream kind.
+     *
+     * Generated from protobuf field <code>.google.api.MetricDescriptor.MetricKind metric_kind = 3;</code>
+     */
+    protected $metric_kind = 0;
+    /**
+     * The unit in which `time_series` point values are reported. `unit`
+     * follows the UCUM format for units as seen in
+     * https://unitsofmeasure.org/ucum.html.
+     * `unit` is only valid if `value_type` is INTEGER, DOUBLE, DISTRIBUTION.
+     *
+     * Generated from protobuf field <code>string unit = 4;</code>
+     */
+    protected $unit = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $key
+     *           The value key.
+     *     @type int $value_type
+     *           The value type.
+     *     @type int $metric_kind
+     *           The value stream kind.
+     *     @type string $unit
+     *           The unit in which `time_series` point values are reported. `unit`
+     *           follows the UCUM format for units as seen in
+     *           https://unitsofmeasure.org/ucum.html.
+     *           `unit` is only valid if `value_type` is INTEGER, DOUBLE, DISTRIBUTION.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Metric::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The value key.
+     *
+     * Generated from protobuf field <code>string key = 1;</code>
+     * @return string
+     */
+    public function getKey()
+    {
+        return $this->key;
+    }
+
+    /**
+     * The value key.
+     *
+     * Generated from protobuf field <code>string key = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setKey($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->key = $var;
+
+        return $this;
+    }
+
+    /**
+     * The value type.
+     *
+     * Generated from protobuf field <code>.google.api.MetricDescriptor.ValueType value_type = 2;</code>
+     * @return int
+     */
+    public function getValueType()
+    {
+        return $this->value_type;
+    }
+
+    /**
+     * The value type.
+     *
+     * Generated from protobuf field <code>.google.api.MetricDescriptor.ValueType value_type = 2;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setValueType($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Api\MetricDescriptor\ValueType::class);
+        $this->value_type = $var;
+
+        return $this;
+    }
+
+    /**
+     * The value stream kind.
+     *
+     * Generated from protobuf field <code>.google.api.MetricDescriptor.MetricKind metric_kind = 3;</code>
+     * @return int
+     */
+    public function getMetricKind()
+    {
+        return $this->metric_kind;
+    }
+
+    /**
+     * The value stream kind.
+     *
+     * Generated from protobuf field <code>.google.api.MetricDescriptor.MetricKind metric_kind = 3;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setMetricKind($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Api\MetricDescriptor\MetricKind::class);
+        $this->metric_kind = $var;
+
+        return $this;
+    }
+
+    /**
+     * The unit in which `time_series` point values are reported. `unit`
+     * follows the UCUM format for units as seen in
+     * https://unitsofmeasure.org/ucum.html.
+     * `unit` is only valid if `value_type` is INTEGER, DOUBLE, DISTRIBUTION.
+     *
+     * Generated from protobuf field <code>string unit = 4;</code>
+     * @return string
+     */
+    public function getUnit()
+    {
+        return $this->unit;
+    }
+
+    /**
+     * The unit in which `time_series` point values are reported. `unit`
+     * follows the UCUM format for units as seen in
+     * https://unitsofmeasure.org/ucum.html.
+     * `unit` is only valid if `value_type` is INTEGER, DOUBLE, DISTRIBUTION.
+     *
+     * Generated from protobuf field <code>string unit = 4;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setUnit($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->unit = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(ValueDescriptor::class, \Google\Cloud\Monitoring\V3\TimeSeriesDescriptor_ValueDescriptor::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TimeSeriesRatio.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TimeSeriesRatio.php
new file mode 100644
index 000000000000..bbd4edb9bac9
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TimeSeriesRatio.php
@@ -0,0 +1,180 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A `TimeSeriesRatio` specifies two `TimeSeries` to use for computing the
+ * `good_service / total_service` ratio. The specified `TimeSeries` must have
+ * `ValueType = DOUBLE` or `ValueType = INT64` and must have `MetricKind =
+ * DELTA` or `MetricKind = CUMULATIVE`. The `TimeSeriesRatio` must specify
+ * exactly two of good, bad, and total, and the relationship `good_service +
+ * bad_service = total_service` will be assumed.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.TimeSeriesRatio</code>
+ */
+class TimeSeriesRatio extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * A [monitoring filter](https://cloud.google.com/monitoring/api/v3/filters)
+     * specifying a `TimeSeries` quantifying good service provided. Must have
+     * `ValueType = DOUBLE` or `ValueType = INT64` and must have `MetricKind =
+     * DELTA` or `MetricKind = CUMULATIVE`.
+     *
+     * Generated from protobuf field <code>string good_service_filter = 4;</code>
+     */
+    protected $good_service_filter = '';
+    /**
+     * A [monitoring filter](https://cloud.google.com/monitoring/api/v3/filters)
+     * specifying a `TimeSeries` quantifying bad service, either demanded service
+     * that was not provided or demanded service that was of inadequate quality.
+     * Must have `ValueType = DOUBLE` or `ValueType = INT64` and must have
+     * `MetricKind = DELTA` or `MetricKind = CUMULATIVE`.
+     *
+     * Generated from protobuf field <code>string bad_service_filter = 5;</code>
+     */
+    protected $bad_service_filter = '';
+    /**
+     * A [monitoring filter](https://cloud.google.com/monitoring/api/v3/filters)
+     * specifying a `TimeSeries` quantifying total demanded service. Must have
+     * `ValueType = DOUBLE` or `ValueType = INT64` and must have `MetricKind =
+     * DELTA` or `MetricKind = CUMULATIVE`.
+     *
+     * Generated from protobuf field <code>string total_service_filter = 6;</code>
+     */
+    protected $total_service_filter = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $good_service_filter
+     *           A [monitoring filter](https://cloud.google.com/monitoring/api/v3/filters)
+     *           specifying a `TimeSeries` quantifying good service provided. Must have
+     *           `ValueType = DOUBLE` or `ValueType = INT64` and must have `MetricKind =
+     *           DELTA` or `MetricKind = CUMULATIVE`.
+     *     @type string $bad_service_filter
+     *           A [monitoring filter](https://cloud.google.com/monitoring/api/v3/filters)
+     *           specifying a `TimeSeries` quantifying bad service, either demanded service
+     *           that was not provided or demanded service that was of inadequate quality.
+     *           Must have `ValueType = DOUBLE` or `ValueType = INT64` and must have
+     *           `MetricKind = DELTA` or `MetricKind = CUMULATIVE`.
+     *     @type string $total_service_filter
+     *           A [monitoring filter](https://cloud.google.com/monitoring/api/v3/filters)
+     *           specifying a `TimeSeries` quantifying total demanded service. Must have
+     *           `ValueType = DOUBLE` or `ValueType = INT64` and must have `MetricKind =
+     *           DELTA` or `MetricKind = CUMULATIVE`.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Service::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * A [monitoring filter](https://cloud.google.com/monitoring/api/v3/filters)
+     * specifying a `TimeSeries` quantifying good service provided. Must have
+     * `ValueType = DOUBLE` or `ValueType = INT64` and must have `MetricKind =
+     * DELTA` or `MetricKind = CUMULATIVE`.
+     *
+     * Generated from protobuf field <code>string good_service_filter = 4;</code>
+     * @return string
+     */
+    public function getGoodServiceFilter()
+    {
+        return $this->good_service_filter;
+    }
+
+    /**
+     * A [monitoring filter](https://cloud.google.com/monitoring/api/v3/filters)
+     * specifying a `TimeSeries` quantifying good service provided. Must have
+     * `ValueType = DOUBLE` or `ValueType = INT64` and must have `MetricKind =
+     * DELTA` or `MetricKind = CUMULATIVE`.
+     *
+     * Generated from protobuf field <code>string good_service_filter = 4;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setGoodServiceFilter($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->good_service_filter = $var;
+
+        return $this;
+    }
+
+    /**
+     * A [monitoring filter](https://cloud.google.com/monitoring/api/v3/filters)
+     * specifying a `TimeSeries` quantifying bad service, either demanded service
+     * that was not provided or demanded service that was of inadequate quality.
+     * Must have `ValueType = DOUBLE` or `ValueType = INT64` and must have
+     * `MetricKind = DELTA` or `MetricKind = CUMULATIVE`.
+     *
+     * Generated from protobuf field <code>string bad_service_filter = 5;</code>
+     * @return string
+     */
+    public function getBadServiceFilter()
+    {
+        return $this->bad_service_filter;
+    }
+
+    /**
+     * A [monitoring filter](https://cloud.google.com/monitoring/api/v3/filters)
+     * specifying a `TimeSeries` quantifying bad service, either demanded service
+     * that was not provided or demanded service that was of inadequate quality.
+     * Must have `ValueType = DOUBLE` or `ValueType = INT64` and must have
+     * `MetricKind = DELTA` or `MetricKind = CUMULATIVE`.
+     *
+     * Generated from protobuf field <code>string bad_service_filter = 5;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setBadServiceFilter($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->bad_service_filter = $var;
+
+        return $this;
+    }
+
+    /**
+     * A [monitoring filter](https://cloud.google.com/monitoring/api/v3/filters)
+     * specifying a `TimeSeries` quantifying total demanded service. Must have
+     * `ValueType = DOUBLE` or `ValueType = INT64` and must have `MetricKind =
+     * DELTA` or `MetricKind = CUMULATIVE`.
+     *
+     * Generated from protobuf field <code>string total_service_filter = 6;</code>
+     * @return string
+     */
+    public function getTotalServiceFilter()
+    {
+        return $this->total_service_filter;
+    }
+
+    /**
+     * A [monitoring filter](https://cloud.google.com/monitoring/api/v3/filters)
+     * specifying a `TimeSeries` quantifying total demanded service. Must have
+     * `ValueType = DOUBLE` or `ValueType = INT64` and must have `MetricKind =
+     * DELTA` or `MetricKind = CUMULATIVE`.
+     *
+     * Generated from protobuf field <code>string total_service_filter = 6;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setTotalServiceFilter($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->total_service_filter = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TypedValue.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TypedValue.php
new file mode 100644
index 000000000000..866bd8da0167
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/TypedValue.php
@@ -0,0 +1,213 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/common.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A single strongly-typed value.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.TypedValue</code>
+ */
+class TypedValue extends \Google\Protobuf\Internal\Message
+{
+    protected $value;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type bool $bool_value
+     *           A Boolean value: `true` or `false`.
+     *     @type int|string $int64_value
+     *           A 64-bit integer. Its range is approximately &plusmn;9.2x10<sup>18</sup>.
+     *     @type float $double_value
+     *           A 64-bit double-precision floating-point number. Its magnitude
+     *           is approximately &plusmn;10<sup>&plusmn;300</sup> and it has 16
+     *           significant digits of precision.
+     *     @type string $string_value
+     *           A variable-length string value.
+     *     @type \Google\Api\Distribution $distribution_value
+     *           A distribution value.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Common::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * A Boolean value: `true` or `false`.
+     *
+     * Generated from protobuf field <code>bool bool_value = 1;</code>
+     * @return bool
+     */
+    public function getBoolValue()
+    {
+        return $this->readOneof(1);
+    }
+
+    public function hasBoolValue()
+    {
+        return $this->hasOneof(1);
+    }
+
+    /**
+     * A Boolean value: `true` or `false`.
+     *
+     * Generated from protobuf field <code>bool bool_value = 1;</code>
+     * @param bool $var
+     * @return $this
+     */
+    public function setBoolValue($var)
+    {
+        GPBUtil::checkBool($var);
+        $this->writeOneof(1, $var);
+
+        return $this;
+    }
+
+    /**
+     * A 64-bit integer. Its range is approximately &plusmn;9.2x10<sup>18</sup>.
+     *
+     * Generated from protobuf field <code>int64 int64_value = 2;</code>
+     * @return int|string
+     */
+    public function getInt64Value()
+    {
+        return $this->readOneof(2);
+    }
+
+    public function hasInt64Value()
+    {
+        return $this->hasOneof(2);
+    }
+
+    /**
+     * A 64-bit integer. Its range is approximately &plusmn;9.2x10<sup>18</sup>.
+     *
+     * Generated from protobuf field <code>int64 int64_value = 2;</code>
+     * @param int|string $var
+     * @return $this
+     */
+    public function setInt64Value($var)
+    {
+        GPBUtil::checkInt64($var);
+        $this->writeOneof(2, $var);
+
+        return $this;
+    }
+
+    /**
+     * A 64-bit double-precision floating-point number. Its magnitude
+     * is approximately &plusmn;10<sup>&plusmn;300</sup> and it has 16
+     * significant digits of precision.
+     *
+     * Generated from protobuf field <code>double double_value = 3;</code>
+     * @return float
+     */
+    public function getDoubleValue()
+    {
+        return $this->readOneof(3);
+    }
+
+    public function hasDoubleValue()
+    {
+        return $this->hasOneof(3);
+    }
+
+    /**
+     * A 64-bit double-precision floating-point number. Its magnitude
+     * is approximately &plusmn;10<sup>&plusmn;300</sup> and it has 16
+     * significant digits of precision.
+     *
+     * Generated from protobuf field <code>double double_value = 3;</code>
+     * @param float $var
+     * @return $this
+     */
+    public function setDoubleValue($var)
+    {
+        GPBUtil::checkDouble($var);
+        $this->writeOneof(3, $var);
+
+        return $this;
+    }
+
+    /**
+     * A variable-length string value.
+     *
+     * Generated from protobuf field <code>string string_value = 4;</code>
+     * @return string
+     */
+    public function getStringValue()
+    {
+        return $this->readOneof(4);
+    }
+
+    public function hasStringValue()
+    {
+        return $this->hasOneof(4);
+    }
+
+    /**
+     * A variable-length string value.
+     *
+     * Generated from protobuf field <code>string string_value = 4;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setStringValue($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->writeOneof(4, $var);
+
+        return $this;
+    }
+
+    /**
+     * A distribution value.
+     *
+     * Generated from protobuf field <code>.google.api.Distribution distribution_value = 5;</code>
+     * @return \Google\Api\Distribution|null
+     */
+    public function getDistributionValue()
+    {
+        return $this->readOneof(5);
+    }
+
+    public function hasDistributionValue()
+    {
+        return $this->hasOneof(5);
+    }
+
+    /**
+     * A distribution value.
+     *
+     * Generated from protobuf field <code>.google.api.Distribution distribution_value = 5;</code>
+     * @param \Google\Api\Distribution $var
+     * @return $this
+     */
+    public function setDistributionValue($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Api\Distribution::class);
+        $this->writeOneof(5, $var);
+
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getValue()
+    {
+        return $this->whichOneof("value");
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UpdateAlertPolicyRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UpdateAlertPolicyRequest.php
new file mode 100644
index 000000000000..4891765d0252
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UpdateAlertPolicyRequest.php
@@ -0,0 +1,239 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/alert_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The protocol for the `UpdateAlertPolicy` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.UpdateAlertPolicyRequest</code>
+ */
+class UpdateAlertPolicyRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Optional. A list of alerting policy field names. If this field is not
+     * empty, each listed field in the existing alerting policy is set to the
+     * value of the corresponding field in the supplied policy (`alert_policy`),
+     * or to the field's default value if the field is not in the supplied
+     * alerting policy.  Fields not listed retain their previous value.
+     * Examples of valid field masks include `display_name`, `documentation`,
+     * `documentation.content`, `documentation.mime_type`, `user_labels`,
+     * `user_label.nameofkey`, `enabled`, `conditions`, `combiner`, etc.
+     * If this field is empty, then the supplied alerting policy replaces the
+     * existing policy. It is the same as deleting the existing policy and
+     * adding the supplied policy, except for the following:
+     * +   The new policy will have the same `[ALERT_POLICY_ID]` as the former
+     *     policy. This gives you continuity with the former policy in your
+     *     notifications and incidents.
+     * +   Conditions in the new policy will keep their former `[CONDITION_ID]` if
+     *     the supplied condition includes the `name` field with that
+     *     `[CONDITION_ID]`. If the supplied condition omits the `name` field,
+     *     then a new `[CONDITION_ID]` is created.
+     *
+     * Generated from protobuf field <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    protected $update_mask = null;
+    /**
+     * Required. The updated alerting policy or the updated values for the
+     * fields listed in `update_mask`.
+     * If `update_mask` is not empty, any fields in this policy that are
+     * not in `update_mask` are ignored.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy alert_policy = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $alert_policy = null;
+
+    /**
+     * @param \Google\Protobuf\FieldMask              $updateMask  Optional. A list of alerting policy field names. If this field is not
+     *                                                             empty, each listed field in the existing alerting policy is set to the
+     *                                                             value of the corresponding field in the supplied policy (`alert_policy`),
+     *                                                             or to the field's default value if the field is not in the supplied
+     *                                                             alerting policy.  Fields not listed retain their previous value.
+     *
+     *                                                             Examples of valid field masks include `display_name`, `documentation`,
+     *                                                             `documentation.content`, `documentation.mime_type`, `user_labels`,
+     *                                                             `user_label.nameofkey`, `enabled`, `conditions`, `combiner`, etc.
+     *
+     *                                                             If this field is empty, then the supplied alerting policy replaces the
+     *                                                             existing policy. It is the same as deleting the existing policy and
+     *                                                             adding the supplied policy, except for the following:
+     *
+     *                                                             +   The new policy will have the same `[ALERT_POLICY_ID]` as the former
+     *                                                             policy. This gives you continuity with the former policy in your
+     *                                                             notifications and incidents.
+     *                                                             +   Conditions in the new policy will keep their former `[CONDITION_ID]` if
+     *                                                             the supplied condition includes the `name` field with that
+     *                                                             `[CONDITION_ID]`. If the supplied condition omits the `name` field,
+     *                                                             then a new `[CONDITION_ID]` is created.
+     * @param \Google\Cloud\Monitoring\V3\AlertPolicy $alertPolicy Required. The updated alerting policy or the updated values for the
+     *                                                             fields listed in `update_mask`.
+     *                                                             If `update_mask` is not empty, any fields in this policy that are
+     *                                                             not in `update_mask` are ignored.
+     *
+     * @return \Google\Cloud\Monitoring\V3\UpdateAlertPolicyRequest
+     *
+     * @experimental
+     */
+    public static function build(\Google\Protobuf\FieldMask $updateMask, \Google\Cloud\Monitoring\V3\AlertPolicy $alertPolicy): self
+    {
+        return (new self())
+            ->setUpdateMask($updateMask)
+            ->setAlertPolicy($alertPolicy);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type \Google\Protobuf\FieldMask $update_mask
+     *           Optional. A list of alerting policy field names. If this field is not
+     *           empty, each listed field in the existing alerting policy is set to the
+     *           value of the corresponding field in the supplied policy (`alert_policy`),
+     *           or to the field's default value if the field is not in the supplied
+     *           alerting policy.  Fields not listed retain their previous value.
+     *           Examples of valid field masks include `display_name`, `documentation`,
+     *           `documentation.content`, `documentation.mime_type`, `user_labels`,
+     *           `user_label.nameofkey`, `enabled`, `conditions`, `combiner`, etc.
+     *           If this field is empty, then the supplied alerting policy replaces the
+     *           existing policy. It is the same as deleting the existing policy and
+     *           adding the supplied policy, except for the following:
+     *           +   The new policy will have the same `[ALERT_POLICY_ID]` as the former
+     *               policy. This gives you continuity with the former policy in your
+     *               notifications and incidents.
+     *           +   Conditions in the new policy will keep their former `[CONDITION_ID]` if
+     *               the supplied condition includes the `name` field with that
+     *               `[CONDITION_ID]`. If the supplied condition omits the `name` field,
+     *               then a new `[CONDITION_ID]` is created.
+     *     @type \Google\Cloud\Monitoring\V3\AlertPolicy $alert_policy
+     *           Required. The updated alerting policy or the updated values for the
+     *           fields listed in `update_mask`.
+     *           If `update_mask` is not empty, any fields in this policy that are
+     *           not in `update_mask` are ignored.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\AlertService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Optional. A list of alerting policy field names. If this field is not
+     * empty, each listed field in the existing alerting policy is set to the
+     * value of the corresponding field in the supplied policy (`alert_policy`),
+     * or to the field's default value if the field is not in the supplied
+     * alerting policy.  Fields not listed retain their previous value.
+     * Examples of valid field masks include `display_name`, `documentation`,
+     * `documentation.content`, `documentation.mime_type`, `user_labels`,
+     * `user_label.nameofkey`, `enabled`, `conditions`, `combiner`, etc.
+     * If this field is empty, then the supplied alerting policy replaces the
+     * existing policy. It is the same as deleting the existing policy and
+     * adding the supplied policy, except for the following:
+     * +   The new policy will have the same `[ALERT_POLICY_ID]` as the former
+     *     policy. This gives you continuity with the former policy in your
+     *     notifications and incidents.
+     * +   Conditions in the new policy will keep their former `[CONDITION_ID]` if
+     *     the supplied condition includes the `name` field with that
+     *     `[CONDITION_ID]`. If the supplied condition omits the `name` field,
+     *     then a new `[CONDITION_ID]` is created.
+     *
+     * Generated from protobuf field <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return \Google\Protobuf\FieldMask|null
+     */
+    public function getUpdateMask()
+    {
+        return $this->update_mask;
+    }
+
+    public function hasUpdateMask()
+    {
+        return isset($this->update_mask);
+    }
+
+    public function clearUpdateMask()
+    {
+        unset($this->update_mask);
+    }
+
+    /**
+     * Optional. A list of alerting policy field names. If this field is not
+     * empty, each listed field in the existing alerting policy is set to the
+     * value of the corresponding field in the supplied policy (`alert_policy`),
+     * or to the field's default value if the field is not in the supplied
+     * alerting policy.  Fields not listed retain their previous value.
+     * Examples of valid field masks include `display_name`, `documentation`,
+     * `documentation.content`, `documentation.mime_type`, `user_labels`,
+     * `user_label.nameofkey`, `enabled`, `conditions`, `combiner`, etc.
+     * If this field is empty, then the supplied alerting policy replaces the
+     * existing policy. It is the same as deleting the existing policy and
+     * adding the supplied policy, except for the following:
+     * +   The new policy will have the same `[ALERT_POLICY_ID]` as the former
+     *     policy. This gives you continuity with the former policy in your
+     *     notifications and incidents.
+     * +   Conditions in the new policy will keep their former `[CONDITION_ID]` if
+     *     the supplied condition includes the `name` field with that
+     *     `[CONDITION_ID]`. If the supplied condition omits the `name` field,
+     *     then a new `[CONDITION_ID]` is created.
+     *
+     * Generated from protobuf field <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param \Google\Protobuf\FieldMask $var
+     * @return $this
+     */
+    public function setUpdateMask($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\FieldMask::class);
+        $this->update_mask = $var;
+
+        return $this;
+    }
+
+    /**
+     * Required. The updated alerting policy or the updated values for the
+     * fields listed in `update_mask`.
+     * If `update_mask` is not empty, any fields in this policy that are
+     * not in `update_mask` are ignored.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy alert_policy = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return \Google\Cloud\Monitoring\V3\AlertPolicy|null
+     */
+    public function getAlertPolicy()
+    {
+        return $this->alert_policy;
+    }
+
+    public function hasAlertPolicy()
+    {
+        return isset($this->alert_policy);
+    }
+
+    public function clearAlertPolicy()
+    {
+        unset($this->alert_policy);
+    }
+
+    /**
+     * Required. The updated alerting policy or the updated values for the
+     * fields listed in `update_mask`.
+     * If `update_mask` is not empty, any fields in this policy that are
+     * not in `update_mask` are ignored.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.AlertPolicy alert_policy = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param \Google\Cloud\Monitoring\V3\AlertPolicy $var
+     * @return $this
+     */
+    public function setAlertPolicy($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\AlertPolicy::class);
+        $this->alert_policy = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UpdateGroupRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UpdateGroupRequest.php
new file mode 100644
index 000000000000..1acaca5a69df
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UpdateGroupRequest.php
@@ -0,0 +1,134 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/group_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `UpdateGroup` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.UpdateGroupRequest</code>
+ */
+class UpdateGroupRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The new definition of the group.  All fields of the existing
+     * group, excepting `name`, are replaced with the corresponding fields of this
+     * group.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Group group = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $group = null;
+    /**
+     * If true, validate this request but do not update the existing group.
+     *
+     * Generated from protobuf field <code>bool validate_only = 3;</code>
+     */
+    protected $validate_only = false;
+
+    /**
+     * @param \Google\Cloud\Monitoring\V3\Group $group Required. The new definition of the group.  All fields of the existing
+     *                                                 group, excepting `name`, are replaced with the corresponding fields of this
+     *                                                 group.
+     *
+     * @return \Google\Cloud\Monitoring\V3\UpdateGroupRequest
+     *
+     * @experimental
+     */
+    public static function build(\Google\Cloud\Monitoring\V3\Group $group): self
+    {
+        return (new self())
+            ->setGroup($group);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type \Google\Cloud\Monitoring\V3\Group $group
+     *           Required. The new definition of the group.  All fields of the existing
+     *           group, excepting `name`, are replaced with the corresponding fields of this
+     *           group.
+     *     @type bool $validate_only
+     *           If true, validate this request but do not update the existing group.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\GroupService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The new definition of the group.  All fields of the existing
+     * group, excepting `name`, are replaced with the corresponding fields of this
+     * group.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Group group = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return \Google\Cloud\Monitoring\V3\Group|null
+     */
+    public function getGroup()
+    {
+        return $this->group;
+    }
+
+    public function hasGroup()
+    {
+        return isset($this->group);
+    }
+
+    public function clearGroup()
+    {
+        unset($this->group);
+    }
+
+    /**
+     * Required. The new definition of the group.  All fields of the existing
+     * group, excepting `name`, are replaced with the corresponding fields of this
+     * group.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Group group = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param \Google\Cloud\Monitoring\V3\Group $var
+     * @return $this
+     */
+    public function setGroup($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\Group::class);
+        $this->group = $var;
+
+        return $this;
+    }
+
+    /**
+     * If true, validate this request but do not update the existing group.
+     *
+     * Generated from protobuf field <code>bool validate_only = 3;</code>
+     * @return bool
+     */
+    public function getValidateOnly()
+    {
+        return $this->validate_only;
+    }
+
+    /**
+     * If true, validate this request but do not update the existing group.
+     *
+     * Generated from protobuf field <code>bool validate_only = 3;</code>
+     * @param bool $var
+     * @return $this
+     */
+    public function setValidateOnly($var)
+    {
+        GPBUtil::checkBool($var);
+        $this->validate_only = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UpdateNotificationChannelRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UpdateNotificationChannelRequest.php
new file mode 100644
index 000000000000..d66db070896e
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UpdateNotificationChannelRequest.php
@@ -0,0 +1,151 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/notification_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `UpdateNotificationChannel` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.UpdateNotificationChannelRequest</code>
+ */
+class UpdateNotificationChannelRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Optional. The fields to update.
+     *
+     * Generated from protobuf field <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    protected $update_mask = null;
+    /**
+     * Required. A description of the changes to be applied to the specified
+     * notification channel. The description must provide a definition for
+     * fields to be updated; the names of these fields should also be
+     * included in the `update_mask`.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.NotificationChannel notification_channel = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $notification_channel = null;
+
+    /**
+     * @param \Google\Protobuf\FieldMask                      $updateMask          Optional. The fields to update.
+     * @param \Google\Cloud\Monitoring\V3\NotificationChannel $notificationChannel Required. A description of the changes to be applied to the specified
+     *                                                                             notification channel. The description must provide a definition for
+     *                                                                             fields to be updated; the names of these fields should also be
+     *                                                                             included in the `update_mask`.
+     *
+     * @return \Google\Cloud\Monitoring\V3\UpdateNotificationChannelRequest
+     *
+     * @experimental
+     */
+    public static function build(\Google\Protobuf\FieldMask $updateMask, \Google\Cloud\Monitoring\V3\NotificationChannel $notificationChannel): self
+    {
+        return (new self())
+            ->setUpdateMask($updateMask)
+            ->setNotificationChannel($notificationChannel);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type \Google\Protobuf\FieldMask $update_mask
+     *           Optional. The fields to update.
+     *     @type \Google\Cloud\Monitoring\V3\NotificationChannel $notification_channel
+     *           Required. A description of the changes to be applied to the specified
+     *           notification channel. The description must provide a definition for
+     *           fields to be updated; the names of these fields should also be
+     *           included in the `update_mask`.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\NotificationService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Optional. The fields to update.
+     *
+     * Generated from protobuf field <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return \Google\Protobuf\FieldMask|null
+     */
+    public function getUpdateMask()
+    {
+        return $this->update_mask;
+    }
+
+    public function hasUpdateMask()
+    {
+        return isset($this->update_mask);
+    }
+
+    public function clearUpdateMask()
+    {
+        unset($this->update_mask);
+    }
+
+    /**
+     * Optional. The fields to update.
+     *
+     * Generated from protobuf field <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param \Google\Protobuf\FieldMask $var
+     * @return $this
+     */
+    public function setUpdateMask($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\FieldMask::class);
+        $this->update_mask = $var;
+
+        return $this;
+    }
+
+    /**
+     * Required. A description of the changes to be applied to the specified
+     * notification channel. The description must provide a definition for
+     * fields to be updated; the names of these fields should also be
+     * included in the `update_mask`.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.NotificationChannel notification_channel = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return \Google\Cloud\Monitoring\V3\NotificationChannel|null
+     */
+    public function getNotificationChannel()
+    {
+        return $this->notification_channel;
+    }
+
+    public function hasNotificationChannel()
+    {
+        return isset($this->notification_channel);
+    }
+
+    public function clearNotificationChannel()
+    {
+        unset($this->notification_channel);
+    }
+
+    /**
+     * Required. A description of the changes to be applied to the specified
+     * notification channel. The description must provide a definition for
+     * fields to be updated; the names of these fields should also be
+     * included in the `update_mask`.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.NotificationChannel notification_channel = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param \Google\Cloud\Monitoring\V3\NotificationChannel $var
+     * @return $this
+     */
+    public function setNotificationChannel($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\NotificationChannel::class);
+        $this->notification_channel = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UpdateServiceLevelObjectiveRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UpdateServiceLevelObjectiveRequest.php
new file mode 100644
index 000000000000..c6521c3f2a33
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UpdateServiceLevelObjectiveRequest.php
@@ -0,0 +1,139 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `UpdateServiceLevelObjective` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.UpdateServiceLevelObjectiveRequest</code>
+ */
+class UpdateServiceLevelObjectiveRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The `ServiceLevelObjective` to draw updates from.
+     * The given `name` specifies the resource to update.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.ServiceLevelObjective service_level_objective = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $service_level_objective = null;
+    /**
+     * A set of field paths defining which fields to use for the update.
+     *
+     * Generated from protobuf field <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    protected $update_mask = null;
+
+    /**
+     * @param \Google\Cloud\Monitoring\V3\ServiceLevelObjective $serviceLevelObjective Required. The `ServiceLevelObjective` to draw updates from.
+     *                                                                                 The given `name` specifies the resource to update.
+     *
+     * @return \Google\Cloud\Monitoring\V3\UpdateServiceLevelObjectiveRequest
+     *
+     * @experimental
+     */
+    public static function build(\Google\Cloud\Monitoring\V3\ServiceLevelObjective $serviceLevelObjective): self
+    {
+        return (new self())
+            ->setServiceLevelObjective($serviceLevelObjective);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type \Google\Cloud\Monitoring\V3\ServiceLevelObjective $service_level_objective
+     *           Required. The `ServiceLevelObjective` to draw updates from.
+     *           The given `name` specifies the resource to update.
+     *     @type \Google\Protobuf\FieldMask $update_mask
+     *           A set of field paths defining which fields to use for the update.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\ServiceService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The `ServiceLevelObjective` to draw updates from.
+     * The given `name` specifies the resource to update.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.ServiceLevelObjective service_level_objective = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return \Google\Cloud\Monitoring\V3\ServiceLevelObjective|null
+     */
+    public function getServiceLevelObjective()
+    {
+        return $this->service_level_objective;
+    }
+
+    public function hasServiceLevelObjective()
+    {
+        return isset($this->service_level_objective);
+    }
+
+    public function clearServiceLevelObjective()
+    {
+        unset($this->service_level_objective);
+    }
+
+    /**
+     * Required. The `ServiceLevelObjective` to draw updates from.
+     * The given `name` specifies the resource to update.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.ServiceLevelObjective service_level_objective = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param \Google\Cloud\Monitoring\V3\ServiceLevelObjective $var
+     * @return $this
+     */
+    public function setServiceLevelObjective($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\ServiceLevelObjective::class);
+        $this->service_level_objective = $var;
+
+        return $this;
+    }
+
+    /**
+     * A set of field paths defining which fields to use for the update.
+     *
+     * Generated from protobuf field <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     * @return \Google\Protobuf\FieldMask|null
+     */
+    public function getUpdateMask()
+    {
+        return $this->update_mask;
+    }
+
+    public function hasUpdateMask()
+    {
+        return isset($this->update_mask);
+    }
+
+    public function clearUpdateMask()
+    {
+        unset($this->update_mask);
+    }
+
+    /**
+     * A set of field paths defining which fields to use for the update.
+     *
+     * Generated from protobuf field <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     * @param \Google\Protobuf\FieldMask $var
+     * @return $this
+     */
+    public function setUpdateMask($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\FieldMask::class);
+        $this->update_mask = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UpdateServiceRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UpdateServiceRequest.php
new file mode 100644
index 000000000000..c672ae081a8d
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UpdateServiceRequest.php
@@ -0,0 +1,139 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `UpdateService` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.UpdateServiceRequest</code>
+ */
+class UpdateServiceRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The `Service` to draw updates from.
+     * The given `name` specifies the resource to update.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service service = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $service = null;
+    /**
+     * A set of field paths defining which fields to use for the update.
+     *
+     * Generated from protobuf field <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    protected $update_mask = null;
+
+    /**
+     * @param \Google\Cloud\Monitoring\V3\Service $service Required. The `Service` to draw updates from.
+     *                                                     The given `name` specifies the resource to update.
+     *
+     * @return \Google\Cloud\Monitoring\V3\UpdateServiceRequest
+     *
+     * @experimental
+     */
+    public static function build(\Google\Cloud\Monitoring\V3\Service $service): self
+    {
+        return (new self())
+            ->setService($service);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type \Google\Cloud\Monitoring\V3\Service $service
+     *           Required. The `Service` to draw updates from.
+     *           The given `name` specifies the resource to update.
+     *     @type \Google\Protobuf\FieldMask $update_mask
+     *           A set of field paths defining which fields to use for the update.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\ServiceService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The `Service` to draw updates from.
+     * The given `name` specifies the resource to update.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service service = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return \Google\Cloud\Monitoring\V3\Service|null
+     */
+    public function getService()
+    {
+        return $this->service;
+    }
+
+    public function hasService()
+    {
+        return isset($this->service);
+    }
+
+    public function clearService()
+    {
+        unset($this->service);
+    }
+
+    /**
+     * Required. The `Service` to draw updates from.
+     * The given `name` specifies the resource to update.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Service service = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param \Google\Cloud\Monitoring\V3\Service $var
+     * @return $this
+     */
+    public function setService($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\Service::class);
+        $this->service = $var;
+
+        return $this;
+    }
+
+    /**
+     * A set of field paths defining which fields to use for the update.
+     *
+     * Generated from protobuf field <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     * @return \Google\Protobuf\FieldMask|null
+     */
+    public function getUpdateMask()
+    {
+        return $this->update_mask;
+    }
+
+    public function hasUpdateMask()
+    {
+        return isset($this->update_mask);
+    }
+
+    public function clearUpdateMask()
+    {
+        unset($this->update_mask);
+    }
+
+    /**
+     * A set of field paths defining which fields to use for the update.
+     *
+     * Generated from protobuf field <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     * @param \Google\Protobuf\FieldMask $var
+     * @return $this
+     */
+    public function setUpdateMask($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\FieldMask::class);
+        $this->update_mask = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UpdateSnoozeRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UpdateSnoozeRequest.php
new file mode 100644
index 000000000000..d3091d8bda9b
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UpdateSnoozeRequest.php
@@ -0,0 +1,227 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/snooze_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The message definition for updating a `Snooze`. The field, `snooze.name`
+ * identifies the `Snooze` to be updated. The remainder of `snooze` gives the
+ * content the `Snooze` in question will be assigned.
+ * What fields can be updated depends on the start time and end time of the
+ * `Snooze`.
+ *   * end time is in the past: These `Snooze`s are considered
+ *     read-only and cannot be updated.
+ *   * start time is in the past and end time is in the future: `display_name`
+ *     and `interval.end_time` can be updated.
+ *   * start time is in the future: `display_name`, `interval.start_time` and
+ *     `interval.end_time` can be updated.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.UpdateSnoozeRequest</code>
+ */
+class UpdateSnoozeRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The `Snooze` to update. Must have the name field present.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Snooze snooze = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $snooze = null;
+    /**
+     * Required. The fields to update.
+     * For each field listed in `update_mask`:
+     *   * If the `Snooze` object supplied in the `UpdateSnoozeRequest` has a
+     *     value for that field, the value of the field in the existing `Snooze`
+     *     will be set to the value of the field in the supplied `Snooze`.
+     *   * If the field does not have a value in the supplied `Snooze`, the field
+     *     in the existing `Snooze` is set to its default value.
+     * Fields not listed retain their existing value.
+     * The following are the field names that are accepted in `update_mask`:
+     *   * `display_name`
+     *   * `interval.start_time`
+     *   * `interval.end_time`
+     * That said, the start time and end time of the `Snooze` determines which
+     * fields can legally be updated. Before attempting an update, users should
+     * consult the documentation for `UpdateSnoozeRequest`, which talks about
+     * which fields can be updated.
+     *
+     * Generated from protobuf field <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $update_mask = null;
+
+    /**
+     * @param \Google\Cloud\Monitoring\V3\Snooze $snooze     Required. The `Snooze` to update. Must have the name field present.
+     * @param \Google\Protobuf\FieldMask         $updateMask Required. The fields to update.
+     *
+     *                                                       For each field listed in `update_mask`:
+     *
+     *                                                       * If the `Snooze` object supplied in the `UpdateSnoozeRequest` has a
+     *                                                       value for that field, the value of the field in the existing `Snooze`
+     *                                                       will be set to the value of the field in the supplied `Snooze`.
+     *                                                       * If the field does not have a value in the supplied `Snooze`, the field
+     *                                                       in the existing `Snooze` is set to its default value.
+     *
+     *                                                       Fields not listed retain their existing value.
+     *
+     *                                                       The following are the field names that are accepted in `update_mask`:
+     *
+     *                                                       * `display_name`
+     *                                                       * `interval.start_time`
+     *                                                       * `interval.end_time`
+     *
+     *                                                       That said, the start time and end time of the `Snooze` determines which
+     *                                                       fields can legally be updated. Before attempting an update, users should
+     *                                                       consult the documentation for `UpdateSnoozeRequest`, which talks about
+     *                                                       which fields can be updated.
+     *
+     * @return \Google\Cloud\Monitoring\V3\UpdateSnoozeRequest
+     *
+     * @experimental
+     */
+    public static function build(\Google\Cloud\Monitoring\V3\Snooze $snooze, \Google\Protobuf\FieldMask $updateMask): self
+    {
+        return (new self())
+            ->setSnooze($snooze)
+            ->setUpdateMask($updateMask);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type \Google\Cloud\Monitoring\V3\Snooze $snooze
+     *           Required. The `Snooze` to update. Must have the name field present.
+     *     @type \Google\Protobuf\FieldMask $update_mask
+     *           Required. The fields to update.
+     *           For each field listed in `update_mask`:
+     *             * If the `Snooze` object supplied in the `UpdateSnoozeRequest` has a
+     *               value for that field, the value of the field in the existing `Snooze`
+     *               will be set to the value of the field in the supplied `Snooze`.
+     *             * If the field does not have a value in the supplied `Snooze`, the field
+     *               in the existing `Snooze` is set to its default value.
+     *           Fields not listed retain their existing value.
+     *           The following are the field names that are accepted in `update_mask`:
+     *             * `display_name`
+     *             * `interval.start_time`
+     *             * `interval.end_time`
+     *           That said, the start time and end time of the `Snooze` determines which
+     *           fields can legally be updated. Before attempting an update, users should
+     *           consult the documentation for `UpdateSnoozeRequest`, which talks about
+     *           which fields can be updated.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\SnoozeService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The `Snooze` to update. Must have the name field present.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Snooze snooze = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return \Google\Cloud\Monitoring\V3\Snooze|null
+     */
+    public function getSnooze()
+    {
+        return $this->snooze;
+    }
+
+    public function hasSnooze()
+    {
+        return isset($this->snooze);
+    }
+
+    public function clearSnooze()
+    {
+        unset($this->snooze);
+    }
+
+    /**
+     * Required. The `Snooze` to update. Must have the name field present.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Snooze snooze = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param \Google\Cloud\Monitoring\V3\Snooze $var
+     * @return $this
+     */
+    public function setSnooze($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\Snooze::class);
+        $this->snooze = $var;
+
+        return $this;
+    }
+
+    /**
+     * Required. The fields to update.
+     * For each field listed in `update_mask`:
+     *   * If the `Snooze` object supplied in the `UpdateSnoozeRequest` has a
+     *     value for that field, the value of the field in the existing `Snooze`
+     *     will be set to the value of the field in the supplied `Snooze`.
+     *   * If the field does not have a value in the supplied `Snooze`, the field
+     *     in the existing `Snooze` is set to its default value.
+     * Fields not listed retain their existing value.
+     * The following are the field names that are accepted in `update_mask`:
+     *   * `display_name`
+     *   * `interval.start_time`
+     *   * `interval.end_time`
+     * That said, the start time and end time of the `Snooze` determines which
+     * fields can legally be updated. Before attempting an update, users should
+     * consult the documentation for `UpdateSnoozeRequest`, which talks about
+     * which fields can be updated.
+     *
+     * Generated from protobuf field <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return \Google\Protobuf\FieldMask|null
+     */
+    public function getUpdateMask()
+    {
+        return $this->update_mask;
+    }
+
+    public function hasUpdateMask()
+    {
+        return isset($this->update_mask);
+    }
+
+    public function clearUpdateMask()
+    {
+        unset($this->update_mask);
+    }
+
+    /**
+     * Required. The fields to update.
+     * For each field listed in `update_mask`:
+     *   * If the `Snooze` object supplied in the `UpdateSnoozeRequest` has a
+     *     value for that field, the value of the field in the existing `Snooze`
+     *     will be set to the value of the field in the supplied `Snooze`.
+     *   * If the field does not have a value in the supplied `Snooze`, the field
+     *     in the existing `Snooze` is set to its default value.
+     * Fields not listed retain their existing value.
+     * The following are the field names that are accepted in `update_mask`:
+     *   * `display_name`
+     *   * `interval.start_time`
+     *   * `interval.end_time`
+     * That said, the start time and end time of the `Snooze` determines which
+     * fields can legally be updated. Before attempting an update, users should
+     * consult the documentation for `UpdateSnoozeRequest`, which talks about
+     * which fields can be updated.
+     *
+     * Generated from protobuf field <code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param \Google\Protobuf\FieldMask $var
+     * @return $this
+     */
+    public function setUpdateMask($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\FieldMask::class);
+        $this->update_mask = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UpdateUptimeCheckConfigRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UpdateUptimeCheckConfigRequest.php
new file mode 100644
index 000000000000..151f44869152
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UpdateUptimeCheckConfigRequest.php
@@ -0,0 +1,192 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The protocol for the `UpdateUptimeCheckConfig` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.UpdateUptimeCheckConfigRequest</code>
+ */
+class UpdateUptimeCheckConfigRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Optional. If present, only the listed fields in the current Uptime check
+     * configuration are updated with values from the new configuration. If this
+     * field is empty, then the current configuration is completely replaced with
+     * the new configuration.
+     *
+     * Generated from protobuf field <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     */
+    protected $update_mask = null;
+    /**
+     * Required. If an `updateMask` has been specified, this field gives
+     * the values for the set of fields mentioned in the `updateMask`. If an
+     * `updateMask` has not been given, this Uptime check configuration replaces
+     * the current configuration. If a field is mentioned in `updateMask` but
+     * the corresponding field is omitted in this partial Uptime check
+     * configuration, it has the effect of deleting/clearing the field from the
+     * configuration on the server.
+     * The following fields can be updated: `display_name`,
+     * `http_check`, `tcp_check`, `timeout`, `content_matchers`, and
+     * `selected_regions`.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig uptime_check_config = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $uptime_check_config = null;
+
+    /**
+     * @param \Google\Cloud\Monitoring\V3\UptimeCheckConfig $uptimeCheckConfig Required. If an `updateMask` has been specified, this field gives
+     *                                                                         the values for the set of fields mentioned in the `updateMask`. If an
+     *                                                                         `updateMask` has not been given, this Uptime check configuration replaces
+     *                                                                         the current configuration. If a field is mentioned in `updateMask` but
+     *                                                                         the corresponding field is omitted in this partial Uptime check
+     *                                                                         configuration, it has the effect of deleting/clearing the field from the
+     *                                                                         configuration on the server.
+     *
+     *                                                                         The following fields can be updated: `display_name`,
+     *                                                                         `http_check`, `tcp_check`, `timeout`, `content_matchers`, and
+     *                                                                         `selected_regions`.
+     *
+     * @return \Google\Cloud\Monitoring\V3\UpdateUptimeCheckConfigRequest
+     *
+     * @experimental
+     */
+    public static function build(\Google\Cloud\Monitoring\V3\UptimeCheckConfig $uptimeCheckConfig): self
+    {
+        return (new self())
+            ->setUptimeCheckConfig($uptimeCheckConfig);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type \Google\Protobuf\FieldMask $update_mask
+     *           Optional. If present, only the listed fields in the current Uptime check
+     *           configuration are updated with values from the new configuration. If this
+     *           field is empty, then the current configuration is completely replaced with
+     *           the new configuration.
+     *     @type \Google\Cloud\Monitoring\V3\UptimeCheckConfig $uptime_check_config
+     *           Required. If an `updateMask` has been specified, this field gives
+     *           the values for the set of fields mentioned in the `updateMask`. If an
+     *           `updateMask` has not been given, this Uptime check configuration replaces
+     *           the current configuration. If a field is mentioned in `updateMask` but
+     *           the corresponding field is omitted in this partial Uptime check
+     *           configuration, it has the effect of deleting/clearing the field from the
+     *           configuration on the server.
+     *           The following fields can be updated: `display_name`,
+     *           `http_check`, `tcp_check`, `timeout`, `content_matchers`, and
+     *           `selected_regions`.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\UptimeService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Optional. If present, only the listed fields in the current Uptime check
+     * configuration are updated with values from the new configuration. If this
+     * field is empty, then the current configuration is completely replaced with
+     * the new configuration.
+     *
+     * Generated from protobuf field <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     * @return \Google\Protobuf\FieldMask|null
+     */
+    public function getUpdateMask()
+    {
+        return $this->update_mask;
+    }
+
+    public function hasUpdateMask()
+    {
+        return isset($this->update_mask);
+    }
+
+    public function clearUpdateMask()
+    {
+        unset($this->update_mask);
+    }
+
+    /**
+     * Optional. If present, only the listed fields in the current Uptime check
+     * configuration are updated with values from the new configuration. If this
+     * field is empty, then the current configuration is completely replaced with
+     * the new configuration.
+     *
+     * Generated from protobuf field <code>.google.protobuf.FieldMask update_mask = 2;</code>
+     * @param \Google\Protobuf\FieldMask $var
+     * @return $this
+     */
+    public function setUpdateMask($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\FieldMask::class);
+        $this->update_mask = $var;
+
+        return $this;
+    }
+
+    /**
+     * Required. If an `updateMask` has been specified, this field gives
+     * the values for the set of fields mentioned in the `updateMask`. If an
+     * `updateMask` has not been given, this Uptime check configuration replaces
+     * the current configuration. If a field is mentioned in `updateMask` but
+     * the corresponding field is omitted in this partial Uptime check
+     * configuration, it has the effect of deleting/clearing the field from the
+     * configuration on the server.
+     * The following fields can be updated: `display_name`,
+     * `http_check`, `tcp_check`, `timeout`, `content_matchers`, and
+     * `selected_regions`.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig uptime_check_config = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return \Google\Cloud\Monitoring\V3\UptimeCheckConfig|null
+     */
+    public function getUptimeCheckConfig()
+    {
+        return $this->uptime_check_config;
+    }
+
+    public function hasUptimeCheckConfig()
+    {
+        return isset($this->uptime_check_config);
+    }
+
+    public function clearUptimeCheckConfig()
+    {
+        unset($this->uptime_check_config);
+    }
+
+    /**
+     * Required. If an `updateMask` has been specified, this field gives
+     * the values for the set of fields mentioned in the `updateMask`. If an
+     * `updateMask` has not been given, this Uptime check configuration replaces
+     * the current configuration. If a field is mentioned in `updateMask` but
+     * the corresponding field is omitted in this partial Uptime check
+     * configuration, it has the effect of deleting/clearing the field from the
+     * configuration on the server.
+     * The following fields can be updated: `display_name`,
+     * `http_check`, `tcp_check`, `timeout`, `content_matchers`, and
+     * `selected_regions`.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig uptime_check_config = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param \Google\Cloud\Monitoring\V3\UptimeCheckConfig $var
+     * @return $this
+     */
+    public function setUptimeCheckConfig($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\UptimeCheckConfig::class);
+        $this->uptime_check_config = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig.php
new file mode 100644
index 000000000000..8823604b32cb
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig.php
@@ -0,0 +1,748 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * This message configures which resources and services to monitor for
+ * availability.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.UptimeCheckConfig</code>
+ */
+class UptimeCheckConfig extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Identifier. A unique resource name for this Uptime check configuration. The
+     * format is:
+     *      projects/[PROJECT_ID_OR_NUMBER]/uptimeCheckConfigs/[UPTIME_CHECK_ID]
+     * `[PROJECT_ID_OR_NUMBER]` is the Workspace host project associated with the
+     * Uptime check.
+     * This field should be omitted when creating the Uptime check configuration;
+     * on create, the resource name is assigned by the server and included in the
+     * response.
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = IDENTIFIER];</code>
+     */
+    protected $name = '';
+    /**
+     * A human-friendly name for the Uptime check configuration. The display name
+     * should be unique within a Cloud Monitoring Workspace in order to make it
+     * easier to identify; however, uniqueness is not enforced. Required.
+     *
+     * Generated from protobuf field <code>string display_name = 2;</code>
+     */
+    protected $display_name = '';
+    /**
+     * How often, in seconds, the Uptime check is performed.
+     * Currently, the only supported values are `60s` (1 minute), `300s`
+     * (5 minutes), `600s` (10 minutes), and `900s` (15 minutes). Optional,
+     * defaults to `60s`.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration period = 7;</code>
+     */
+    protected $period = null;
+    /**
+     * The maximum amount of time to wait for the request to complete (must be
+     * between 1 and 60 seconds). Required.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration timeout = 8;</code>
+     */
+    protected $timeout = null;
+    /**
+     * The content that is expected to appear in the data returned by the target
+     * server against which the check is run.  Currently, only the first entry
+     * in the `content_matchers` list is supported, and additional entries will
+     * be ignored. This field is optional and should only be specified if a
+     * content match is required as part of the/ Uptime check.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.UptimeCheckConfig.ContentMatcher content_matchers = 9;</code>
+     */
+    private $content_matchers;
+    /**
+     * The type of checkers to use to execute the Uptime check.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.CheckerType checker_type = 17;</code>
+     */
+    protected $checker_type = 0;
+    /**
+     * The list of regions from which the check will be run.
+     * Some regions contain one location, and others contain more than one.
+     * If this field is specified, enough regions must be provided to include a
+     * minimum of 3 locations.  Not specifying this field will result in Uptime
+     * checks running from all available regions.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.UptimeCheckRegion selected_regions = 10;</code>
+     */
+    private $selected_regions;
+    /**
+     * If this is `true`, then checks are made only from the 'internal_checkers'.
+     * If it is `false`, then checks are made only from the 'selected_regions'.
+     * It is an error to provide 'selected_regions' when is_internal is `true`,
+     * or to provide 'internal_checkers' when is_internal is `false`.
+     *
+     * Generated from protobuf field <code>bool is_internal = 15 [deprecated = true];</code>
+     * @deprecated
+     */
+    protected $is_internal = false;
+    /**
+     * The internal checkers that this check will egress from. If `is_internal` is
+     * `true` and this list is empty, the check will egress from all the
+     * InternalCheckers configured for the project that owns this
+     * `UptimeCheckConfig`.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.InternalChecker internal_checkers = 14 [deprecated = true];</code>
+     * @deprecated
+     */
+    private $internal_checkers;
+    /**
+     * User-supplied key/value data to be used for organizing and
+     * identifying the `UptimeCheckConfig` objects.
+     * The field can contain up to 64 entries. Each key and value is limited to
+     * 63 Unicode characters or 128 bytes, whichever is smaller. Labels and
+     * values can contain only lowercase letters, numerals, underscores, and
+     * dashes. Keys must begin with a letter.
+     *
+     * Generated from protobuf field <code>map<string, string> user_labels = 20;</code>
+     */
+    private $user_labels;
+    protected $resource;
+    protected $check_request_type;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Identifier. A unique resource name for this Uptime check configuration. The
+     *           format is:
+     *                projects/[PROJECT_ID_OR_NUMBER]/uptimeCheckConfigs/[UPTIME_CHECK_ID]
+     *           `[PROJECT_ID_OR_NUMBER]` is the Workspace host project associated with the
+     *           Uptime check.
+     *           This field should be omitted when creating the Uptime check configuration;
+     *           on create, the resource name is assigned by the server and included in the
+     *           response.
+     *     @type string $display_name
+     *           A human-friendly name for the Uptime check configuration. The display name
+     *           should be unique within a Cloud Monitoring Workspace in order to make it
+     *           easier to identify; however, uniqueness is not enforced. Required.
+     *     @type \Google\Api\MonitoredResource $monitored_resource
+     *           The [monitored
+     *           resource](https://cloud.google.com/monitoring/api/resources) associated
+     *           with the configuration.
+     *           The following monitored resource types are valid for this field:
+     *             `uptime_url`,
+     *             `gce_instance`,
+     *             `gae_app`,
+     *             `aws_ec2_instance`,
+     *             `aws_elb_load_balancer`
+     *             `k8s_service`
+     *             `servicedirectory_service`
+     *             `cloud_run_revision`
+     *     @type \Google\Cloud\Monitoring\V3\UptimeCheckConfig\ResourceGroup $resource_group
+     *           The group resource associated with the configuration.
+     *     @type \Google\Cloud\Monitoring\V3\SyntheticMonitorTarget $synthetic_monitor
+     *           Specifies a Synthetic Monitor to invoke.
+     *     @type \Google\Cloud\Monitoring\V3\UptimeCheckConfig\HttpCheck $http_check
+     *           Contains information needed to make an HTTP or HTTPS check.
+     *     @type \Google\Cloud\Monitoring\V3\UptimeCheckConfig\TcpCheck $tcp_check
+     *           Contains information needed to make a TCP check.
+     *     @type \Google\Protobuf\Duration $period
+     *           How often, in seconds, the Uptime check is performed.
+     *           Currently, the only supported values are `60s` (1 minute), `300s`
+     *           (5 minutes), `600s` (10 minutes), and `900s` (15 minutes). Optional,
+     *           defaults to `60s`.
+     *     @type \Google\Protobuf\Duration $timeout
+     *           The maximum amount of time to wait for the request to complete (must be
+     *           between 1 and 60 seconds). Required.
+     *     @type array<\Google\Cloud\Monitoring\V3\UptimeCheckConfig\ContentMatcher>|\Google\Protobuf\Internal\RepeatedField $content_matchers
+     *           The content that is expected to appear in the data returned by the target
+     *           server against which the check is run.  Currently, only the first entry
+     *           in the `content_matchers` list is supported, and additional entries will
+     *           be ignored. This field is optional and should only be specified if a
+     *           content match is required as part of the/ Uptime check.
+     *     @type int $checker_type
+     *           The type of checkers to use to execute the Uptime check.
+     *     @type array<int>|\Google\Protobuf\Internal\RepeatedField $selected_regions
+     *           The list of regions from which the check will be run.
+     *           Some regions contain one location, and others contain more than one.
+     *           If this field is specified, enough regions must be provided to include a
+     *           minimum of 3 locations.  Not specifying this field will result in Uptime
+     *           checks running from all available regions.
+     *     @type bool $is_internal
+     *           If this is `true`, then checks are made only from the 'internal_checkers'.
+     *           If it is `false`, then checks are made only from the 'selected_regions'.
+     *           It is an error to provide 'selected_regions' when is_internal is `true`,
+     *           or to provide 'internal_checkers' when is_internal is `false`.
+     *     @type array<\Google\Cloud\Monitoring\V3\InternalChecker>|\Google\Protobuf\Internal\RepeatedField $internal_checkers
+     *           The internal checkers that this check will egress from. If `is_internal` is
+     *           `true` and this list is empty, the check will egress from all the
+     *           InternalCheckers configured for the project that owns this
+     *           `UptimeCheckConfig`.
+     *     @type array|\Google\Protobuf\Internal\MapField $user_labels
+     *           User-supplied key/value data to be used for organizing and
+     *           identifying the `UptimeCheckConfig` objects.
+     *           The field can contain up to 64 entries. Each key and value is limited to
+     *           63 Unicode characters or 128 bytes, whichever is smaller. Labels and
+     *           values can contain only lowercase letters, numerals, underscores, and
+     *           dashes. Keys must begin with a letter.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Uptime::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Identifier. A unique resource name for this Uptime check configuration. The
+     * format is:
+     *      projects/[PROJECT_ID_OR_NUMBER]/uptimeCheckConfigs/[UPTIME_CHECK_ID]
+     * `[PROJECT_ID_OR_NUMBER]` is the Workspace host project associated with the
+     * Uptime check.
+     * This field should be omitted when creating the Uptime check configuration;
+     * on create, the resource name is assigned by the server and included in the
+     * response.
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = IDENTIFIER];</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Identifier. A unique resource name for this Uptime check configuration. The
+     * format is:
+     *      projects/[PROJECT_ID_OR_NUMBER]/uptimeCheckConfigs/[UPTIME_CHECK_ID]
+     * `[PROJECT_ID_OR_NUMBER]` is the Workspace host project associated with the
+     * Uptime check.
+     * This field should be omitted when creating the Uptime check configuration;
+     * on create, the resource name is assigned by the server and included in the
+     * response.
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = IDENTIFIER];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * A human-friendly name for the Uptime check configuration. The display name
+     * should be unique within a Cloud Monitoring Workspace in order to make it
+     * easier to identify; however, uniqueness is not enforced. Required.
+     *
+     * Generated from protobuf field <code>string display_name = 2;</code>
+     * @return string
+     */
+    public function getDisplayName()
+    {
+        return $this->display_name;
+    }
+
+    /**
+     * A human-friendly name for the Uptime check configuration. The display name
+     * should be unique within a Cloud Monitoring Workspace in order to make it
+     * easier to identify; however, uniqueness is not enforced. Required.
+     *
+     * Generated from protobuf field <code>string display_name = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setDisplayName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->display_name = $var;
+
+        return $this;
+    }
+
+    /**
+     * The [monitored
+     * resource](https://cloud.google.com/monitoring/api/resources) associated
+     * with the configuration.
+     * The following monitored resource types are valid for this field:
+     *   `uptime_url`,
+     *   `gce_instance`,
+     *   `gae_app`,
+     *   `aws_ec2_instance`,
+     *   `aws_elb_load_balancer`
+     *   `k8s_service`
+     *   `servicedirectory_service`
+     *   `cloud_run_revision`
+     *
+     * Generated from protobuf field <code>.google.api.MonitoredResource monitored_resource = 3;</code>
+     * @return \Google\Api\MonitoredResource|null
+     */
+    public function getMonitoredResource()
+    {
+        return $this->readOneof(3);
+    }
+
+    public function hasMonitoredResource()
+    {
+        return $this->hasOneof(3);
+    }
+
+    /**
+     * The [monitored
+     * resource](https://cloud.google.com/monitoring/api/resources) associated
+     * with the configuration.
+     * The following monitored resource types are valid for this field:
+     *   `uptime_url`,
+     *   `gce_instance`,
+     *   `gae_app`,
+     *   `aws_ec2_instance`,
+     *   `aws_elb_load_balancer`
+     *   `k8s_service`
+     *   `servicedirectory_service`
+     *   `cloud_run_revision`
+     *
+     * Generated from protobuf field <code>.google.api.MonitoredResource monitored_resource = 3;</code>
+     * @param \Google\Api\MonitoredResource $var
+     * @return $this
+     */
+    public function setMonitoredResource($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Api\MonitoredResource::class);
+        $this->writeOneof(3, $var);
+
+        return $this;
+    }
+
+    /**
+     * The group resource associated with the configuration.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.ResourceGroup resource_group = 4;</code>
+     * @return \Google\Cloud\Monitoring\V3\UptimeCheckConfig\ResourceGroup|null
+     */
+    public function getResourceGroup()
+    {
+        return $this->readOneof(4);
+    }
+
+    public function hasResourceGroup()
+    {
+        return $this->hasOneof(4);
+    }
+
+    /**
+     * The group resource associated with the configuration.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.ResourceGroup resource_group = 4;</code>
+     * @param \Google\Cloud\Monitoring\V3\UptimeCheckConfig\ResourceGroup $var
+     * @return $this
+     */
+    public function setResourceGroup($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\UptimeCheckConfig\ResourceGroup::class);
+        $this->writeOneof(4, $var);
+
+        return $this;
+    }
+
+    /**
+     * Specifies a Synthetic Monitor to invoke.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.SyntheticMonitorTarget synthetic_monitor = 21;</code>
+     * @return \Google\Cloud\Monitoring\V3\SyntheticMonitorTarget|null
+     */
+    public function getSyntheticMonitor()
+    {
+        return $this->readOneof(21);
+    }
+
+    public function hasSyntheticMonitor()
+    {
+        return $this->hasOneof(21);
+    }
+
+    /**
+     * Specifies a Synthetic Monitor to invoke.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.SyntheticMonitorTarget synthetic_monitor = 21;</code>
+     * @param \Google\Cloud\Monitoring\V3\SyntheticMonitorTarget $var
+     * @return $this
+     */
+    public function setSyntheticMonitor($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\SyntheticMonitorTarget::class);
+        $this->writeOneof(21, $var);
+
+        return $this;
+    }
+
+    /**
+     * Contains information needed to make an HTTP or HTTPS check.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.HttpCheck http_check = 5;</code>
+     * @return \Google\Cloud\Monitoring\V3\UptimeCheckConfig\HttpCheck|null
+     */
+    public function getHttpCheck()
+    {
+        return $this->readOneof(5);
+    }
+
+    public function hasHttpCheck()
+    {
+        return $this->hasOneof(5);
+    }
+
+    /**
+     * Contains information needed to make an HTTP or HTTPS check.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.HttpCheck http_check = 5;</code>
+     * @param \Google\Cloud\Monitoring\V3\UptimeCheckConfig\HttpCheck $var
+     * @return $this
+     */
+    public function setHttpCheck($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\UptimeCheckConfig\HttpCheck::class);
+        $this->writeOneof(5, $var);
+
+        return $this;
+    }
+
+    /**
+     * Contains information needed to make a TCP check.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.TcpCheck tcp_check = 6;</code>
+     * @return \Google\Cloud\Monitoring\V3\UptimeCheckConfig\TcpCheck|null
+     */
+    public function getTcpCheck()
+    {
+        return $this->readOneof(6);
+    }
+
+    public function hasTcpCheck()
+    {
+        return $this->hasOneof(6);
+    }
+
+    /**
+     * Contains information needed to make a TCP check.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.TcpCheck tcp_check = 6;</code>
+     * @param \Google\Cloud\Monitoring\V3\UptimeCheckConfig\TcpCheck $var
+     * @return $this
+     */
+    public function setTcpCheck($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\UptimeCheckConfig\TcpCheck::class);
+        $this->writeOneof(6, $var);
+
+        return $this;
+    }
+
+    /**
+     * How often, in seconds, the Uptime check is performed.
+     * Currently, the only supported values are `60s` (1 minute), `300s`
+     * (5 minutes), `600s` (10 minutes), and `900s` (15 minutes). Optional,
+     * defaults to `60s`.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration period = 7;</code>
+     * @return \Google\Protobuf\Duration|null
+     */
+    public function getPeriod()
+    {
+        return $this->period;
+    }
+
+    public function hasPeriod()
+    {
+        return isset($this->period);
+    }
+
+    public function clearPeriod()
+    {
+        unset($this->period);
+    }
+
+    /**
+     * How often, in seconds, the Uptime check is performed.
+     * Currently, the only supported values are `60s` (1 minute), `300s`
+     * (5 minutes), `600s` (10 minutes), and `900s` (15 minutes). Optional,
+     * defaults to `60s`.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration period = 7;</code>
+     * @param \Google\Protobuf\Duration $var
+     * @return $this
+     */
+    public function setPeriod($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\Duration::class);
+        $this->period = $var;
+
+        return $this;
+    }
+
+    /**
+     * The maximum amount of time to wait for the request to complete (must be
+     * between 1 and 60 seconds). Required.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration timeout = 8;</code>
+     * @return \Google\Protobuf\Duration|null
+     */
+    public function getTimeout()
+    {
+        return $this->timeout;
+    }
+
+    public function hasTimeout()
+    {
+        return isset($this->timeout);
+    }
+
+    public function clearTimeout()
+    {
+        unset($this->timeout);
+    }
+
+    /**
+     * The maximum amount of time to wait for the request to complete (must be
+     * between 1 and 60 seconds). Required.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration timeout = 8;</code>
+     * @param \Google\Protobuf\Duration $var
+     * @return $this
+     */
+    public function setTimeout($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\Duration::class);
+        $this->timeout = $var;
+
+        return $this;
+    }
+
+    /**
+     * The content that is expected to appear in the data returned by the target
+     * server against which the check is run.  Currently, only the first entry
+     * in the `content_matchers` list is supported, and additional entries will
+     * be ignored. This field is optional and should only be specified if a
+     * content match is required as part of the/ Uptime check.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.UptimeCheckConfig.ContentMatcher content_matchers = 9;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getContentMatchers()
+    {
+        return $this->content_matchers;
+    }
+
+    /**
+     * The content that is expected to appear in the data returned by the target
+     * server against which the check is run.  Currently, only the first entry
+     * in the `content_matchers` list is supported, and additional entries will
+     * be ignored. This field is optional and should only be specified if a
+     * content match is required as part of the/ Uptime check.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.UptimeCheckConfig.ContentMatcher content_matchers = 9;</code>
+     * @param array<\Google\Cloud\Monitoring\V3\UptimeCheckConfig\ContentMatcher>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setContentMatchers($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\UptimeCheckConfig\ContentMatcher::class);
+        $this->content_matchers = $arr;
+
+        return $this;
+    }
+
+    /**
+     * The type of checkers to use to execute the Uptime check.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.CheckerType checker_type = 17;</code>
+     * @return int
+     */
+    public function getCheckerType()
+    {
+        return $this->checker_type;
+    }
+
+    /**
+     * The type of checkers to use to execute the Uptime check.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.CheckerType checker_type = 17;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setCheckerType($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Cloud\Monitoring\V3\UptimeCheckConfig\CheckerType::class);
+        $this->checker_type = $var;
+
+        return $this;
+    }
+
+    /**
+     * The list of regions from which the check will be run.
+     * Some regions contain one location, and others contain more than one.
+     * If this field is specified, enough regions must be provided to include a
+     * minimum of 3 locations.  Not specifying this field will result in Uptime
+     * checks running from all available regions.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.UptimeCheckRegion selected_regions = 10;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getSelectedRegions()
+    {
+        return $this->selected_regions;
+    }
+
+    /**
+     * The list of regions from which the check will be run.
+     * Some regions contain one location, and others contain more than one.
+     * If this field is specified, enough regions must be provided to include a
+     * minimum of 3 locations.  Not specifying this field will result in Uptime
+     * checks running from all available regions.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.UptimeCheckRegion selected_regions = 10;</code>
+     * @param array<int>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setSelectedRegions($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::ENUM, \Google\Cloud\Monitoring\V3\UptimeCheckRegion::class);
+        $this->selected_regions = $arr;
+
+        return $this;
+    }
+
+    /**
+     * If this is `true`, then checks are made only from the 'internal_checkers'.
+     * If it is `false`, then checks are made only from the 'selected_regions'.
+     * It is an error to provide 'selected_regions' when is_internal is `true`,
+     * or to provide 'internal_checkers' when is_internal is `false`.
+     *
+     * Generated from protobuf field <code>bool is_internal = 15 [deprecated = true];</code>
+     * @return bool
+     * @deprecated
+     */
+    public function getIsInternal()
+    {
+        @trigger_error('is_internal is deprecated.', E_USER_DEPRECATED);
+        return $this->is_internal;
+    }
+
+    /**
+     * If this is `true`, then checks are made only from the 'internal_checkers'.
+     * If it is `false`, then checks are made only from the 'selected_regions'.
+     * It is an error to provide 'selected_regions' when is_internal is `true`,
+     * or to provide 'internal_checkers' when is_internal is `false`.
+     *
+     * Generated from protobuf field <code>bool is_internal = 15 [deprecated = true];</code>
+     * @param bool $var
+     * @return $this
+     * @deprecated
+     */
+    public function setIsInternal($var)
+    {
+        @trigger_error('is_internal is deprecated.', E_USER_DEPRECATED);
+        GPBUtil::checkBool($var);
+        $this->is_internal = $var;
+
+        return $this;
+    }
+
+    /**
+     * The internal checkers that this check will egress from. If `is_internal` is
+     * `true` and this list is empty, the check will egress from all the
+     * InternalCheckers configured for the project that owns this
+     * `UptimeCheckConfig`.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.InternalChecker internal_checkers = 14 [deprecated = true];</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     * @deprecated
+     */
+    public function getInternalCheckers()
+    {
+        @trigger_error('internal_checkers is deprecated.', E_USER_DEPRECATED);
+        return $this->internal_checkers;
+    }
+
+    /**
+     * The internal checkers that this check will egress from. If `is_internal` is
+     * `true` and this list is empty, the check will egress from all the
+     * InternalCheckers configured for the project that owns this
+     * `UptimeCheckConfig`.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.InternalChecker internal_checkers = 14 [deprecated = true];</code>
+     * @param array<\Google\Cloud\Monitoring\V3\InternalChecker>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     * @deprecated
+     */
+    public function setInternalCheckers($var)
+    {
+        @trigger_error('internal_checkers is deprecated.', E_USER_DEPRECATED);
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\InternalChecker::class);
+        $this->internal_checkers = $arr;
+
+        return $this;
+    }
+
+    /**
+     * User-supplied key/value data to be used for organizing and
+     * identifying the `UptimeCheckConfig` objects.
+     * The field can contain up to 64 entries. Each key and value is limited to
+     * 63 Unicode characters or 128 bytes, whichever is smaller. Labels and
+     * values can contain only lowercase letters, numerals, underscores, and
+     * dashes. Keys must begin with a letter.
+     *
+     * Generated from protobuf field <code>map<string, string> user_labels = 20;</code>
+     * @return \Google\Protobuf\Internal\MapField
+     */
+    public function getUserLabels()
+    {
+        return $this->user_labels;
+    }
+
+    /**
+     * User-supplied key/value data to be used for organizing and
+     * identifying the `UptimeCheckConfig` objects.
+     * The field can contain up to 64 entries. Each key and value is limited to
+     * 63 Unicode characters or 128 bytes, whichever is smaller. Labels and
+     * values can contain only lowercase letters, numerals, underscores, and
+     * dashes. Keys must begin with a letter.
+     *
+     * Generated from protobuf field <code>map<string, string> user_labels = 20;</code>
+     * @param array|\Google\Protobuf\Internal\MapField $var
+     * @return $this
+     */
+    public function setUserLabels($var)
+    {
+        $arr = GPBUtil::checkMapField($var, \Google\Protobuf\Internal\GPBType::STRING, \Google\Protobuf\Internal\GPBType::STRING);
+        $this->user_labels = $arr;
+
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getResource()
+    {
+        return $this->whichOneof("resource");
+    }
+
+    /**
+     * @return string
+     */
+    public function getCheckRequestType()
+    {
+        return $this->whichOneof("check_request_type");
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/CheckerType.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/CheckerType.php
new file mode 100644
index 000000000000..e97a33453e22
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/CheckerType.php
@@ -0,0 +1,69 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime.proto
+
+namespace Google\Cloud\Monitoring\V3\UptimeCheckConfig;
+
+use UnexpectedValueException;
+
+/**
+ * What kind of checkers are available to be used by the check.
+ *
+ * Protobuf type <code>google.monitoring.v3.UptimeCheckConfig.CheckerType</code>
+ */
+class CheckerType
+{
+    /**
+     * The default checker type. Currently converted to `STATIC_IP_CHECKERS`
+     * on creation, the default conversion behavior may change in the future.
+     *
+     * Generated from protobuf enum <code>CHECKER_TYPE_UNSPECIFIED = 0;</code>
+     */
+    const CHECKER_TYPE_UNSPECIFIED = 0;
+    /**
+     * `STATIC_IP_CHECKERS` are used for uptime checks that perform egress
+     * across the public internet. `STATIC_IP_CHECKERS` use the static IP
+     * addresses returned by `ListUptimeCheckIps`.
+     *
+     * Generated from protobuf enum <code>STATIC_IP_CHECKERS = 1;</code>
+     */
+    const STATIC_IP_CHECKERS = 1;
+    /**
+     * `VPC_CHECKERS` are used for uptime checks that perform egress using
+     * Service Directory and private network access. When using `VPC_CHECKERS`,
+     * the monitored resource type must be `servicedirectory_service`.
+     *
+     * Generated from protobuf enum <code>VPC_CHECKERS = 3;</code>
+     */
+    const VPC_CHECKERS = 3;
+
+    private static $valueToName = [
+        self::CHECKER_TYPE_UNSPECIFIED => 'CHECKER_TYPE_UNSPECIFIED',
+        self::STATIC_IP_CHECKERS => 'STATIC_IP_CHECKERS',
+        self::VPC_CHECKERS => 'VPC_CHECKERS',
+    ];
+
+    public static function name($value)
+    {
+        if (!isset(self::$valueToName[$value])) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no name defined for value %s', __CLASS__, $value));
+        }
+        return self::$valueToName[$value];
+    }
+
+
+    public static function value($name)
+    {
+        $const = __CLASS__ . '::' . strtoupper($name);
+        if (!defined($const)) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no value defined for name %s', __CLASS__, $name));
+        }
+        return constant($const);
+    }
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(CheckerType::class, \Google\Cloud\Monitoring\V3\UptimeCheckConfig_CheckerType::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/ContentMatcher.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/ContentMatcher.php
new file mode 100644
index 000000000000..6c5646dbef86
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/ContentMatcher.php
@@ -0,0 +1,158 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime.proto
+
+namespace Google\Cloud\Monitoring\V3\UptimeCheckConfig;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Optional. Used to perform content matching. This allows matching based on
+ * substrings and regular expressions, together with their negations. Only the
+ * first 4&nbsp;MB of an HTTP or HTTPS check's response (and the first
+ * 1&nbsp;MB of a TCP check's response) are examined for purposes of content
+ * matching.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.UptimeCheckConfig.ContentMatcher</code>
+ */
+class ContentMatcher extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * String, regex or JSON content to match. Maximum 1024 bytes. An empty
+     * `content` string indicates no content matching is to be performed.
+     *
+     * Generated from protobuf field <code>string content = 1;</code>
+     */
+    protected $content = '';
+    /**
+     * The type of content matcher that will be applied to the server output,
+     * compared to the `content` string when the check is run.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.ContentMatcher.ContentMatcherOption matcher = 2;</code>
+     */
+    protected $matcher = 0;
+    protected $additional_matcher_info;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $content
+     *           String, regex or JSON content to match. Maximum 1024 bytes. An empty
+     *           `content` string indicates no content matching is to be performed.
+     *     @type int $matcher
+     *           The type of content matcher that will be applied to the server output,
+     *           compared to the `content` string when the check is run.
+     *     @type \Google\Cloud\Monitoring\V3\UptimeCheckConfig\ContentMatcher\JsonPathMatcher $json_path_matcher
+     *           Matcher information for `MATCHES_JSON_PATH` and `NOT_MATCHES_JSON_PATH`
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Uptime::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * String, regex or JSON content to match. Maximum 1024 bytes. An empty
+     * `content` string indicates no content matching is to be performed.
+     *
+     * Generated from protobuf field <code>string content = 1;</code>
+     * @return string
+     */
+    public function getContent()
+    {
+        return $this->content;
+    }
+
+    /**
+     * String, regex or JSON content to match. Maximum 1024 bytes. An empty
+     * `content` string indicates no content matching is to be performed.
+     *
+     * Generated from protobuf field <code>string content = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setContent($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->content = $var;
+
+        return $this;
+    }
+
+    /**
+     * The type of content matcher that will be applied to the server output,
+     * compared to the `content` string when the check is run.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.ContentMatcher.ContentMatcherOption matcher = 2;</code>
+     * @return int
+     */
+    public function getMatcher()
+    {
+        return $this->matcher;
+    }
+
+    /**
+     * The type of content matcher that will be applied to the server output,
+     * compared to the `content` string when the check is run.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.ContentMatcher.ContentMatcherOption matcher = 2;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setMatcher($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Cloud\Monitoring\V3\UptimeCheckConfig\ContentMatcher\ContentMatcherOption::class);
+        $this->matcher = $var;
+
+        return $this;
+    }
+
+    /**
+     * Matcher information for `MATCHES_JSON_PATH` and `NOT_MATCHES_JSON_PATH`
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.ContentMatcher.JsonPathMatcher json_path_matcher = 3;</code>
+     * @return \Google\Cloud\Monitoring\V3\UptimeCheckConfig\ContentMatcher\JsonPathMatcher|null
+     */
+    public function getJsonPathMatcher()
+    {
+        return $this->readOneof(3);
+    }
+
+    public function hasJsonPathMatcher()
+    {
+        return $this->hasOneof(3);
+    }
+
+    /**
+     * Matcher information for `MATCHES_JSON_PATH` and `NOT_MATCHES_JSON_PATH`
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.ContentMatcher.JsonPathMatcher json_path_matcher = 3;</code>
+     * @param \Google\Cloud\Monitoring\V3\UptimeCheckConfig\ContentMatcher\JsonPathMatcher $var
+     * @return $this
+     */
+    public function setJsonPathMatcher($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\UptimeCheckConfig\ContentMatcher\JsonPathMatcher::class);
+        $this->writeOneof(3, $var);
+
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getAdditionalMatcherInfo()
+    {
+        return $this->whichOneof("additional_matcher_info");
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(ContentMatcher::class, \Google\Cloud\Monitoring\V3\UptimeCheckConfig_ContentMatcher::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/ContentMatcher/ContentMatcherOption.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/ContentMatcher/ContentMatcherOption.php
new file mode 100644
index 000000000000..3dffeaa7586f
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/ContentMatcher/ContentMatcherOption.php
@@ -0,0 +1,107 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime.proto
+
+namespace Google\Cloud\Monitoring\V3\UptimeCheckConfig\ContentMatcher;
+
+use UnexpectedValueException;
+
+/**
+ * Options to perform content matching.
+ *
+ * Protobuf type <code>google.monitoring.v3.UptimeCheckConfig.ContentMatcher.ContentMatcherOption</code>
+ */
+class ContentMatcherOption
+{
+    /**
+     * No content matcher type specified (maintained for backward
+     * compatibility, but deprecated for future use).
+     * Treated as `CONTAINS_STRING`.
+     *
+     * Generated from protobuf enum <code>CONTENT_MATCHER_OPTION_UNSPECIFIED = 0;</code>
+     */
+    const CONTENT_MATCHER_OPTION_UNSPECIFIED = 0;
+    /**
+     * Selects substring matching. The match succeeds if the output contains
+     * the `content` string.  This is the default value for checks without
+     * a `matcher` option, or where the value of `matcher` is
+     * `CONTENT_MATCHER_OPTION_UNSPECIFIED`.
+     *
+     * Generated from protobuf enum <code>CONTAINS_STRING = 1;</code>
+     */
+    const CONTAINS_STRING = 1;
+    /**
+     * Selects negation of substring matching. The match succeeds if the
+     * output does _NOT_ contain the `content` string.
+     *
+     * Generated from protobuf enum <code>NOT_CONTAINS_STRING = 2;</code>
+     */
+    const NOT_CONTAINS_STRING = 2;
+    /**
+     * Selects regular-expression matching. The match succeeds if the output
+     * matches the regular expression specified in the `content` string.
+     * Regex matching is only supported for HTTP/HTTPS checks.
+     *
+     * Generated from protobuf enum <code>MATCHES_REGEX = 3;</code>
+     */
+    const MATCHES_REGEX = 3;
+    /**
+     * Selects negation of regular-expression matching. The match succeeds if
+     * the output does _NOT_ match the regular expression specified in the
+     * `content` string. Regex matching is only supported for HTTP/HTTPS
+     * checks.
+     *
+     * Generated from protobuf enum <code>NOT_MATCHES_REGEX = 4;</code>
+     */
+    const NOT_MATCHES_REGEX = 4;
+    /**
+     * Selects JSONPath matching. See `JsonPathMatcher` for details on when
+     * the match succeeds. JSONPath matching is only supported for HTTP/HTTPS
+     * checks.
+     *
+     * Generated from protobuf enum <code>MATCHES_JSON_PATH = 5;</code>
+     */
+    const MATCHES_JSON_PATH = 5;
+    /**
+     * Selects JSONPath matching. See `JsonPathMatcher` for details on when
+     * the match succeeds. Succeeds when output does _NOT_ match as specified.
+     * JSONPath is only supported for HTTP/HTTPS checks.
+     *
+     * Generated from protobuf enum <code>NOT_MATCHES_JSON_PATH = 6;</code>
+     */
+    const NOT_MATCHES_JSON_PATH = 6;
+
+    private static $valueToName = [
+        self::CONTENT_MATCHER_OPTION_UNSPECIFIED => 'CONTENT_MATCHER_OPTION_UNSPECIFIED',
+        self::CONTAINS_STRING => 'CONTAINS_STRING',
+        self::NOT_CONTAINS_STRING => 'NOT_CONTAINS_STRING',
+        self::MATCHES_REGEX => 'MATCHES_REGEX',
+        self::NOT_MATCHES_REGEX => 'NOT_MATCHES_REGEX',
+        self::MATCHES_JSON_PATH => 'MATCHES_JSON_PATH',
+        self::NOT_MATCHES_JSON_PATH => 'NOT_MATCHES_JSON_PATH',
+    ];
+
+    public static function name($value)
+    {
+        if (!isset(self::$valueToName[$value])) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no name defined for value %s', __CLASS__, $value));
+        }
+        return self::$valueToName[$value];
+    }
+
+
+    public static function value($name)
+    {
+        $const = __CLASS__ . '::' . strtoupper($name);
+        if (!defined($const)) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no value defined for name %s', __CLASS__, $name));
+        }
+        return constant($const);
+    }
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(ContentMatcherOption::class, \Google\Cloud\Monitoring\V3\UptimeCheckConfig_ContentMatcher_ContentMatcherOption::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/ContentMatcher/JsonPathMatcher.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/ContentMatcher/JsonPathMatcher.php
new file mode 100644
index 000000000000..04e6f363bfab
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/ContentMatcher/JsonPathMatcher.php
@@ -0,0 +1,114 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime.proto
+
+namespace Google\Cloud\Monitoring\V3\UptimeCheckConfig\ContentMatcher;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Information needed to perform a JSONPath content match.
+ * Used for `ContentMatcherOption::MATCHES_JSON_PATH` and
+ * `ContentMatcherOption::NOT_MATCHES_JSON_PATH`.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.UptimeCheckConfig.ContentMatcher.JsonPathMatcher</code>
+ */
+class JsonPathMatcher extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * JSONPath within the response output pointing to the expected
+     * `ContentMatcher::content` to match against.
+     *
+     * Generated from protobuf field <code>string json_path = 1;</code>
+     */
+    protected $json_path = '';
+    /**
+     * The type of JSONPath match that will be applied to the JSON output
+     * (`ContentMatcher.content`)
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.ContentMatcher.JsonPathMatcher.JsonPathMatcherOption json_matcher = 2;</code>
+     */
+    protected $json_matcher = 0;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $json_path
+     *           JSONPath within the response output pointing to the expected
+     *           `ContentMatcher::content` to match against.
+     *     @type int $json_matcher
+     *           The type of JSONPath match that will be applied to the JSON output
+     *           (`ContentMatcher.content`)
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Uptime::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * JSONPath within the response output pointing to the expected
+     * `ContentMatcher::content` to match against.
+     *
+     * Generated from protobuf field <code>string json_path = 1;</code>
+     * @return string
+     */
+    public function getJsonPath()
+    {
+        return $this->json_path;
+    }
+
+    /**
+     * JSONPath within the response output pointing to the expected
+     * `ContentMatcher::content` to match against.
+     *
+     * Generated from protobuf field <code>string json_path = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setJsonPath($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->json_path = $var;
+
+        return $this;
+    }
+
+    /**
+     * The type of JSONPath match that will be applied to the JSON output
+     * (`ContentMatcher.content`)
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.ContentMatcher.JsonPathMatcher.JsonPathMatcherOption json_matcher = 2;</code>
+     * @return int
+     */
+    public function getJsonMatcher()
+    {
+        return $this->json_matcher;
+    }
+
+    /**
+     * The type of JSONPath match that will be applied to the JSON output
+     * (`ContentMatcher.content`)
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.ContentMatcher.JsonPathMatcher.JsonPathMatcherOption json_matcher = 2;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setJsonMatcher($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Cloud\Monitoring\V3\UptimeCheckConfig\ContentMatcher\JsonPathMatcher\JsonPathMatcherOption::class);
+        $this->json_matcher = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(JsonPathMatcher::class, \Google\Cloud\Monitoring\V3\UptimeCheckConfig_ContentMatcher_JsonPathMatcher::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/ContentMatcher/JsonPathMatcher/JsonPathMatcherOption.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/ContentMatcher/JsonPathMatcher/JsonPathMatcherOption.php
new file mode 100644
index 000000000000..965725688ee1
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/ContentMatcher/JsonPathMatcher/JsonPathMatcherOption.php
@@ -0,0 +1,68 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime.proto
+
+namespace Google\Cloud\Monitoring\V3\UptimeCheckConfig\ContentMatcher\JsonPathMatcher;
+
+use UnexpectedValueException;
+
+/**
+ * Options to perform JSONPath content matching.
+ *
+ * Protobuf type <code>google.monitoring.v3.UptimeCheckConfig.ContentMatcher.JsonPathMatcher.JsonPathMatcherOption</code>
+ */
+class JsonPathMatcherOption
+{
+    /**
+     * No JSONPath matcher type specified (not valid).
+     *
+     * Generated from protobuf enum <code>JSON_PATH_MATCHER_OPTION_UNSPECIFIED = 0;</code>
+     */
+    const JSON_PATH_MATCHER_OPTION_UNSPECIFIED = 0;
+    /**
+     * Selects 'exact string' matching. The match succeeds if the content at
+     * the `json_path` within the output is exactly the same as the
+     * `content` string.
+     *
+     * Generated from protobuf enum <code>EXACT_MATCH = 1;</code>
+     */
+    const EXACT_MATCH = 1;
+    /**
+     * Selects regular-expression matching. The match succeeds if the
+     * content at the `json_path` within the output matches the regular
+     * expression specified in the `content` string.
+     *
+     * Generated from protobuf enum <code>REGEX_MATCH = 2;</code>
+     */
+    const REGEX_MATCH = 2;
+
+    private static $valueToName = [
+        self::JSON_PATH_MATCHER_OPTION_UNSPECIFIED => 'JSON_PATH_MATCHER_OPTION_UNSPECIFIED',
+        self::EXACT_MATCH => 'EXACT_MATCH',
+        self::REGEX_MATCH => 'REGEX_MATCH',
+    ];
+
+    public static function name($value)
+    {
+        if (!isset(self::$valueToName[$value])) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no name defined for value %s', __CLASS__, $value));
+        }
+        return self::$valueToName[$value];
+    }
+
+
+    public static function value($name)
+    {
+        $const = __CLASS__ . '::' . strtoupper($name);
+        if (!defined($const)) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no value defined for name %s', __CLASS__, $name));
+        }
+        return constant($const);
+    }
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(JsonPathMatcherOption::class, \Google\Cloud\Monitoring\V3\UptimeCheckConfig_ContentMatcher_JsonPathMatcher_JsonPathMatcherOption::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/HttpCheck.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/HttpCheck.php
new file mode 100644
index 000000000000..0c3ff2d2ed8d
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/HttpCheck.php
@@ -0,0 +1,730 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime.proto
+
+namespace Google\Cloud\Monitoring\V3\UptimeCheckConfig;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Information involved in an HTTP/HTTPS Uptime check request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.UptimeCheckConfig.HttpCheck</code>
+ */
+class HttpCheck extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The HTTP request method to use for the check. If set to
+     * `METHOD_UNSPECIFIED` then `request_method` defaults to `GET`.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.HttpCheck.RequestMethod request_method = 8;</code>
+     */
+    protected $request_method = 0;
+    /**
+     * If `true`, use HTTPS instead of HTTP to run the check.
+     *
+     * Generated from protobuf field <code>bool use_ssl = 1;</code>
+     */
+    protected $use_ssl = false;
+    /**
+     * Optional (defaults to "/"). The path to the page against which to run
+     * the check. Will be combined with the `host` (specified within the
+     * `monitored_resource`) and `port` to construct the full URL. If the
+     * provided path does not begin with "/", a "/" will be prepended
+     * automatically.
+     *
+     * Generated from protobuf field <code>string path = 2;</code>
+     */
+    protected $path = '';
+    /**
+     * Optional (defaults to 80 when `use_ssl` is `false`, and 443 when
+     * `use_ssl` is `true`). The TCP port on the HTTP server against which to
+     * run the check. Will be combined with host (specified within the
+     * `monitored_resource`) and `path` to construct the full URL.
+     *
+     * Generated from protobuf field <code>int32 port = 3;</code>
+     */
+    protected $port = 0;
+    /**
+     * The authentication information. Optional when creating an HTTP check;
+     * defaults to empty.
+     * Do not set both `auth_method` and `auth_info`.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.HttpCheck.BasicAuthentication auth_info = 4;</code>
+     */
+    protected $auth_info = null;
+    /**
+     * Boolean specifying whether to encrypt the header information.
+     * Encryption should be specified for any headers related to authentication
+     * that you do not wish to be seen when retrieving the configuration. The
+     * server will be responsible for encrypting the headers.
+     * On Get/List calls, if `mask_headers` is set to `true` then the headers
+     * will be obscured with `******.`
+     *
+     * Generated from protobuf field <code>bool mask_headers = 5;</code>
+     */
+    protected $mask_headers = false;
+    /**
+     * The list of headers to send as part of the Uptime check request.
+     * If two headers have the same key and different values, they should
+     * be entered as a single header, with the value being a comma-separated
+     * list of all the desired values as described at
+     * https://www.w3.org/Protocols/rfc2616/rfc2616.txt (page 31).
+     * Entering two separate headers with the same key in a Create call will
+     * cause the first to be overwritten by the second.
+     * The maximum number of headers allowed is 100.
+     *
+     * Generated from protobuf field <code>map<string, string> headers = 6;</code>
+     */
+    private $headers;
+    /**
+     * The content type header to use for the check. The following
+     * configurations result in errors:
+     * 1. Content type is specified in both the `headers` field and the
+     * `content_type` field.
+     * 2. Request method is `GET` and `content_type` is not `TYPE_UNSPECIFIED`
+     * 3. Request method is `POST` and `content_type` is `TYPE_UNSPECIFIED`.
+     * 4. Request method is `POST` and a "Content-Type" header is provided via
+     * `headers` field. The `content_type` field should be used instead.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.HttpCheck.ContentType content_type = 9;</code>
+     */
+    protected $content_type = 0;
+    /**
+     * A user provided content type header to use for the check. The invalid
+     * configurations outlined in the `content_type` field apply to
+     * `custom_content_type`, as well as the following:
+     * 1. `content_type` is `URL_ENCODED` and `custom_content_type` is set.
+     * 2. `content_type` is `USER_PROVIDED` and `custom_content_type` is not
+     * set.
+     *
+     * Generated from protobuf field <code>string custom_content_type = 13;</code>
+     */
+    protected $custom_content_type = '';
+    /**
+     * Boolean specifying whether to include SSL certificate validation as a
+     * part of the Uptime check. Only applies to checks where
+     * `monitored_resource` is set to `uptime_url`. If `use_ssl` is `false`,
+     * setting `validate_ssl` to `true` has no effect.
+     *
+     * Generated from protobuf field <code>bool validate_ssl = 7;</code>
+     */
+    protected $validate_ssl = false;
+    /**
+     * The request body associated with the HTTP POST request. If `content_type`
+     * is `URL_ENCODED`, the body passed in must be URL-encoded. Users can
+     * provide a `Content-Length` header via the `headers` field or the API will
+     * do so. If the `request_method` is `GET` and `body` is not empty, the API
+     * will return an error. The maximum byte size is 1 megabyte.
+     * Note: If client libraries aren't used (which performs the conversion
+     * automatically) base64 encode your `body` data since the field is of
+     * `bytes` type.
+     *
+     * Generated from protobuf field <code>bytes body = 10;</code>
+     */
+    protected $body = '';
+    /**
+     * If present, the check will only pass if the HTTP response status code is
+     * in this set of status codes. If empty, the HTTP status code will only
+     * pass if the HTTP status code is 200-299.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.UptimeCheckConfig.HttpCheck.ResponseStatusCode accepted_response_status_codes = 11;</code>
+     */
+    private $accepted_response_status_codes;
+    /**
+     * Contains information needed to add pings to an HTTP check.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.PingConfig ping_config = 12;</code>
+     */
+    protected $ping_config = null;
+    protected $auth_method;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type int $request_method
+     *           The HTTP request method to use for the check. If set to
+     *           `METHOD_UNSPECIFIED` then `request_method` defaults to `GET`.
+     *     @type bool $use_ssl
+     *           If `true`, use HTTPS instead of HTTP to run the check.
+     *     @type string $path
+     *           Optional (defaults to "/"). The path to the page against which to run
+     *           the check. Will be combined with the `host` (specified within the
+     *           `monitored_resource`) and `port` to construct the full URL. If the
+     *           provided path does not begin with "/", a "/" will be prepended
+     *           automatically.
+     *     @type int $port
+     *           Optional (defaults to 80 when `use_ssl` is `false`, and 443 when
+     *           `use_ssl` is `true`). The TCP port on the HTTP server against which to
+     *           run the check. Will be combined with host (specified within the
+     *           `monitored_resource`) and `path` to construct the full URL.
+     *     @type \Google\Cloud\Monitoring\V3\UptimeCheckConfig\HttpCheck\BasicAuthentication $auth_info
+     *           The authentication information. Optional when creating an HTTP check;
+     *           defaults to empty.
+     *           Do not set both `auth_method` and `auth_info`.
+     *     @type bool $mask_headers
+     *           Boolean specifying whether to encrypt the header information.
+     *           Encryption should be specified for any headers related to authentication
+     *           that you do not wish to be seen when retrieving the configuration. The
+     *           server will be responsible for encrypting the headers.
+     *           On Get/List calls, if `mask_headers` is set to `true` then the headers
+     *           will be obscured with `******.`
+     *     @type array|\Google\Protobuf\Internal\MapField $headers
+     *           The list of headers to send as part of the Uptime check request.
+     *           If two headers have the same key and different values, they should
+     *           be entered as a single header, with the value being a comma-separated
+     *           list of all the desired values as described at
+     *           https://www.w3.org/Protocols/rfc2616/rfc2616.txt (page 31).
+     *           Entering two separate headers with the same key in a Create call will
+     *           cause the first to be overwritten by the second.
+     *           The maximum number of headers allowed is 100.
+     *     @type int $content_type
+     *           The content type header to use for the check. The following
+     *           configurations result in errors:
+     *           1. Content type is specified in both the `headers` field and the
+     *           `content_type` field.
+     *           2. Request method is `GET` and `content_type` is not `TYPE_UNSPECIFIED`
+     *           3. Request method is `POST` and `content_type` is `TYPE_UNSPECIFIED`.
+     *           4. Request method is `POST` and a "Content-Type" header is provided via
+     *           `headers` field. The `content_type` field should be used instead.
+     *     @type string $custom_content_type
+     *           A user provided content type header to use for the check. The invalid
+     *           configurations outlined in the `content_type` field apply to
+     *           `custom_content_type`, as well as the following:
+     *           1. `content_type` is `URL_ENCODED` and `custom_content_type` is set.
+     *           2. `content_type` is `USER_PROVIDED` and `custom_content_type` is not
+     *           set.
+     *     @type bool $validate_ssl
+     *           Boolean specifying whether to include SSL certificate validation as a
+     *           part of the Uptime check. Only applies to checks where
+     *           `monitored_resource` is set to `uptime_url`. If `use_ssl` is `false`,
+     *           setting `validate_ssl` to `true` has no effect.
+     *     @type string $body
+     *           The request body associated with the HTTP POST request. If `content_type`
+     *           is `URL_ENCODED`, the body passed in must be URL-encoded. Users can
+     *           provide a `Content-Length` header via the `headers` field or the API will
+     *           do so. If the `request_method` is `GET` and `body` is not empty, the API
+     *           will return an error. The maximum byte size is 1 megabyte.
+     *           Note: If client libraries aren't used (which performs the conversion
+     *           automatically) base64 encode your `body` data since the field is of
+     *           `bytes` type.
+     *     @type array<\Google\Cloud\Monitoring\V3\UptimeCheckConfig\HttpCheck\ResponseStatusCode>|\Google\Protobuf\Internal\RepeatedField $accepted_response_status_codes
+     *           If present, the check will only pass if the HTTP response status code is
+     *           in this set of status codes. If empty, the HTTP status code will only
+     *           pass if the HTTP status code is 200-299.
+     *     @type \Google\Cloud\Monitoring\V3\UptimeCheckConfig\PingConfig $ping_config
+     *           Contains information needed to add pings to an HTTP check.
+     *     @type \Google\Cloud\Monitoring\V3\UptimeCheckConfig\HttpCheck\ServiceAgentAuthentication $service_agent_authentication
+     *           If specified, Uptime will generate and attach an OIDC JWT token for the
+     *           Monitoring service agent service account as an `Authorization` header
+     *           in the HTTP request when probing.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Uptime::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The HTTP request method to use for the check. If set to
+     * `METHOD_UNSPECIFIED` then `request_method` defaults to `GET`.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.HttpCheck.RequestMethod request_method = 8;</code>
+     * @return int
+     */
+    public function getRequestMethod()
+    {
+        return $this->request_method;
+    }
+
+    /**
+     * The HTTP request method to use for the check. If set to
+     * `METHOD_UNSPECIFIED` then `request_method` defaults to `GET`.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.HttpCheck.RequestMethod request_method = 8;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setRequestMethod($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Cloud\Monitoring\V3\UptimeCheckConfig\HttpCheck\RequestMethod::class);
+        $this->request_method = $var;
+
+        return $this;
+    }
+
+    /**
+     * If `true`, use HTTPS instead of HTTP to run the check.
+     *
+     * Generated from protobuf field <code>bool use_ssl = 1;</code>
+     * @return bool
+     */
+    public function getUseSsl()
+    {
+        return $this->use_ssl;
+    }
+
+    /**
+     * If `true`, use HTTPS instead of HTTP to run the check.
+     *
+     * Generated from protobuf field <code>bool use_ssl = 1;</code>
+     * @param bool $var
+     * @return $this
+     */
+    public function setUseSsl($var)
+    {
+        GPBUtil::checkBool($var);
+        $this->use_ssl = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional (defaults to "/"). The path to the page against which to run
+     * the check. Will be combined with the `host` (specified within the
+     * `monitored_resource`) and `port` to construct the full URL. If the
+     * provided path does not begin with "/", a "/" will be prepended
+     * automatically.
+     *
+     * Generated from protobuf field <code>string path = 2;</code>
+     * @return string
+     */
+    public function getPath()
+    {
+        return $this->path;
+    }
+
+    /**
+     * Optional (defaults to "/"). The path to the page against which to run
+     * the check. Will be combined with the `host` (specified within the
+     * `monitored_resource`) and `port` to construct the full URL. If the
+     * provided path does not begin with "/", a "/" will be prepended
+     * automatically.
+     *
+     * Generated from protobuf field <code>string path = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setPath($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->path = $var;
+
+        return $this;
+    }
+
+    /**
+     * Optional (defaults to 80 when `use_ssl` is `false`, and 443 when
+     * `use_ssl` is `true`). The TCP port on the HTTP server against which to
+     * run the check. Will be combined with host (specified within the
+     * `monitored_resource`) and `path` to construct the full URL.
+     *
+     * Generated from protobuf field <code>int32 port = 3;</code>
+     * @return int
+     */
+    public function getPort()
+    {
+        return $this->port;
+    }
+
+    /**
+     * Optional (defaults to 80 when `use_ssl` is `false`, and 443 when
+     * `use_ssl` is `true`). The TCP port on the HTTP server against which to
+     * run the check. Will be combined with host (specified within the
+     * `monitored_resource`) and `path` to construct the full URL.
+     *
+     * Generated from protobuf field <code>int32 port = 3;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setPort($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->port = $var;
+
+        return $this;
+    }
+
+    /**
+     * The authentication information. Optional when creating an HTTP check;
+     * defaults to empty.
+     * Do not set both `auth_method` and `auth_info`.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.HttpCheck.BasicAuthentication auth_info = 4;</code>
+     * @return \Google\Cloud\Monitoring\V3\UptimeCheckConfig\HttpCheck\BasicAuthentication|null
+     */
+    public function getAuthInfo()
+    {
+        return $this->auth_info;
+    }
+
+    public function hasAuthInfo()
+    {
+        return isset($this->auth_info);
+    }
+
+    public function clearAuthInfo()
+    {
+        unset($this->auth_info);
+    }
+
+    /**
+     * The authentication information. Optional when creating an HTTP check;
+     * defaults to empty.
+     * Do not set both `auth_method` and `auth_info`.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.HttpCheck.BasicAuthentication auth_info = 4;</code>
+     * @param \Google\Cloud\Monitoring\V3\UptimeCheckConfig\HttpCheck\BasicAuthentication $var
+     * @return $this
+     */
+    public function setAuthInfo($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\UptimeCheckConfig\HttpCheck\BasicAuthentication::class);
+        $this->auth_info = $var;
+
+        return $this;
+    }
+
+    /**
+     * Boolean specifying whether to encrypt the header information.
+     * Encryption should be specified for any headers related to authentication
+     * that you do not wish to be seen when retrieving the configuration. The
+     * server will be responsible for encrypting the headers.
+     * On Get/List calls, if `mask_headers` is set to `true` then the headers
+     * will be obscured with `******.`
+     *
+     * Generated from protobuf field <code>bool mask_headers = 5;</code>
+     * @return bool
+     */
+    public function getMaskHeaders()
+    {
+        return $this->mask_headers;
+    }
+
+    /**
+     * Boolean specifying whether to encrypt the header information.
+     * Encryption should be specified for any headers related to authentication
+     * that you do not wish to be seen when retrieving the configuration. The
+     * server will be responsible for encrypting the headers.
+     * On Get/List calls, if `mask_headers` is set to `true` then the headers
+     * will be obscured with `******.`
+     *
+     * Generated from protobuf field <code>bool mask_headers = 5;</code>
+     * @param bool $var
+     * @return $this
+     */
+    public function setMaskHeaders($var)
+    {
+        GPBUtil::checkBool($var);
+        $this->mask_headers = $var;
+
+        return $this;
+    }
+
+    /**
+     * The list of headers to send as part of the Uptime check request.
+     * If two headers have the same key and different values, they should
+     * be entered as a single header, with the value being a comma-separated
+     * list of all the desired values as described at
+     * https://www.w3.org/Protocols/rfc2616/rfc2616.txt (page 31).
+     * Entering two separate headers with the same key in a Create call will
+     * cause the first to be overwritten by the second.
+     * The maximum number of headers allowed is 100.
+     *
+     * Generated from protobuf field <code>map<string, string> headers = 6;</code>
+     * @return \Google\Protobuf\Internal\MapField
+     */
+    public function getHeaders()
+    {
+        return $this->headers;
+    }
+
+    /**
+     * The list of headers to send as part of the Uptime check request.
+     * If two headers have the same key and different values, they should
+     * be entered as a single header, with the value being a comma-separated
+     * list of all the desired values as described at
+     * https://www.w3.org/Protocols/rfc2616/rfc2616.txt (page 31).
+     * Entering two separate headers with the same key in a Create call will
+     * cause the first to be overwritten by the second.
+     * The maximum number of headers allowed is 100.
+     *
+     * Generated from protobuf field <code>map<string, string> headers = 6;</code>
+     * @param array|\Google\Protobuf\Internal\MapField $var
+     * @return $this
+     */
+    public function setHeaders($var)
+    {
+        $arr = GPBUtil::checkMapField($var, \Google\Protobuf\Internal\GPBType::STRING, \Google\Protobuf\Internal\GPBType::STRING);
+        $this->headers = $arr;
+
+        return $this;
+    }
+
+    /**
+     * The content type header to use for the check. The following
+     * configurations result in errors:
+     * 1. Content type is specified in both the `headers` field and the
+     * `content_type` field.
+     * 2. Request method is `GET` and `content_type` is not `TYPE_UNSPECIFIED`
+     * 3. Request method is `POST` and `content_type` is `TYPE_UNSPECIFIED`.
+     * 4. Request method is `POST` and a "Content-Type" header is provided via
+     * `headers` field. The `content_type` field should be used instead.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.HttpCheck.ContentType content_type = 9;</code>
+     * @return int
+     */
+    public function getContentType()
+    {
+        return $this->content_type;
+    }
+
+    /**
+     * The content type header to use for the check. The following
+     * configurations result in errors:
+     * 1. Content type is specified in both the `headers` field and the
+     * `content_type` field.
+     * 2. Request method is `GET` and `content_type` is not `TYPE_UNSPECIFIED`
+     * 3. Request method is `POST` and `content_type` is `TYPE_UNSPECIFIED`.
+     * 4. Request method is `POST` and a "Content-Type" header is provided via
+     * `headers` field. The `content_type` field should be used instead.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.HttpCheck.ContentType content_type = 9;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setContentType($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Cloud\Monitoring\V3\UptimeCheckConfig\HttpCheck\ContentType::class);
+        $this->content_type = $var;
+
+        return $this;
+    }
+
+    /**
+     * A user provided content type header to use for the check. The invalid
+     * configurations outlined in the `content_type` field apply to
+     * `custom_content_type`, as well as the following:
+     * 1. `content_type` is `URL_ENCODED` and `custom_content_type` is set.
+     * 2. `content_type` is `USER_PROVIDED` and `custom_content_type` is not
+     * set.
+     *
+     * Generated from protobuf field <code>string custom_content_type = 13;</code>
+     * @return string
+     */
+    public function getCustomContentType()
+    {
+        return $this->custom_content_type;
+    }
+
+    /**
+     * A user provided content type header to use for the check. The invalid
+     * configurations outlined in the `content_type` field apply to
+     * `custom_content_type`, as well as the following:
+     * 1. `content_type` is `URL_ENCODED` and `custom_content_type` is set.
+     * 2. `content_type` is `USER_PROVIDED` and `custom_content_type` is not
+     * set.
+     *
+     * Generated from protobuf field <code>string custom_content_type = 13;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setCustomContentType($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->custom_content_type = $var;
+
+        return $this;
+    }
+
+    /**
+     * Boolean specifying whether to include SSL certificate validation as a
+     * part of the Uptime check. Only applies to checks where
+     * `monitored_resource` is set to `uptime_url`. If `use_ssl` is `false`,
+     * setting `validate_ssl` to `true` has no effect.
+     *
+     * Generated from protobuf field <code>bool validate_ssl = 7;</code>
+     * @return bool
+     */
+    public function getValidateSsl()
+    {
+        return $this->validate_ssl;
+    }
+
+    /**
+     * Boolean specifying whether to include SSL certificate validation as a
+     * part of the Uptime check. Only applies to checks where
+     * `monitored_resource` is set to `uptime_url`. If `use_ssl` is `false`,
+     * setting `validate_ssl` to `true` has no effect.
+     *
+     * Generated from protobuf field <code>bool validate_ssl = 7;</code>
+     * @param bool $var
+     * @return $this
+     */
+    public function setValidateSsl($var)
+    {
+        GPBUtil::checkBool($var);
+        $this->validate_ssl = $var;
+
+        return $this;
+    }
+
+    /**
+     * The request body associated with the HTTP POST request. If `content_type`
+     * is `URL_ENCODED`, the body passed in must be URL-encoded. Users can
+     * provide a `Content-Length` header via the `headers` field or the API will
+     * do so. If the `request_method` is `GET` and `body` is not empty, the API
+     * will return an error. The maximum byte size is 1 megabyte.
+     * Note: If client libraries aren't used (which performs the conversion
+     * automatically) base64 encode your `body` data since the field is of
+     * `bytes` type.
+     *
+     * Generated from protobuf field <code>bytes body = 10;</code>
+     * @return string
+     */
+    public function getBody()
+    {
+        return $this->body;
+    }
+
+    /**
+     * The request body associated with the HTTP POST request. If `content_type`
+     * is `URL_ENCODED`, the body passed in must be URL-encoded. Users can
+     * provide a `Content-Length` header via the `headers` field or the API will
+     * do so. If the `request_method` is `GET` and `body` is not empty, the API
+     * will return an error. The maximum byte size is 1 megabyte.
+     * Note: If client libraries aren't used (which performs the conversion
+     * automatically) base64 encode your `body` data since the field is of
+     * `bytes` type.
+     *
+     * Generated from protobuf field <code>bytes body = 10;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setBody($var)
+    {
+        GPBUtil::checkString($var, False);
+        $this->body = $var;
+
+        return $this;
+    }
+
+    /**
+     * If present, the check will only pass if the HTTP response status code is
+     * in this set of status codes. If empty, the HTTP status code will only
+     * pass if the HTTP status code is 200-299.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.UptimeCheckConfig.HttpCheck.ResponseStatusCode accepted_response_status_codes = 11;</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getAcceptedResponseStatusCodes()
+    {
+        return $this->accepted_response_status_codes;
+    }
+
+    /**
+     * If present, the check will only pass if the HTTP response status code is
+     * in this set of status codes. If empty, the HTTP status code will only
+     * pass if the HTTP status code is 200-299.
+     *
+     * Generated from protobuf field <code>repeated .google.monitoring.v3.UptimeCheckConfig.HttpCheck.ResponseStatusCode accepted_response_status_codes = 11;</code>
+     * @param array<\Google\Cloud\Monitoring\V3\UptimeCheckConfig\HttpCheck\ResponseStatusCode>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setAcceptedResponseStatusCodes($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Monitoring\V3\UptimeCheckConfig\HttpCheck\ResponseStatusCode::class);
+        $this->accepted_response_status_codes = $arr;
+
+        return $this;
+    }
+
+    /**
+     * Contains information needed to add pings to an HTTP check.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.PingConfig ping_config = 12;</code>
+     * @return \Google\Cloud\Monitoring\V3\UptimeCheckConfig\PingConfig|null
+     */
+    public function getPingConfig()
+    {
+        return $this->ping_config;
+    }
+
+    public function hasPingConfig()
+    {
+        return isset($this->ping_config);
+    }
+
+    public function clearPingConfig()
+    {
+        unset($this->ping_config);
+    }
+
+    /**
+     * Contains information needed to add pings to an HTTP check.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.PingConfig ping_config = 12;</code>
+     * @param \Google\Cloud\Monitoring\V3\UptimeCheckConfig\PingConfig $var
+     * @return $this
+     */
+    public function setPingConfig($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\UptimeCheckConfig\PingConfig::class);
+        $this->ping_config = $var;
+
+        return $this;
+    }
+
+    /**
+     * If specified, Uptime will generate and attach an OIDC JWT token for the
+     * Monitoring service agent service account as an `Authorization` header
+     * in the HTTP request when probing.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.HttpCheck.ServiceAgentAuthentication service_agent_authentication = 14;</code>
+     * @return \Google\Cloud\Monitoring\V3\UptimeCheckConfig\HttpCheck\ServiceAgentAuthentication|null
+     */
+    public function getServiceAgentAuthentication()
+    {
+        return $this->readOneof(14);
+    }
+
+    public function hasServiceAgentAuthentication()
+    {
+        return $this->hasOneof(14);
+    }
+
+    /**
+     * If specified, Uptime will generate and attach an OIDC JWT token for the
+     * Monitoring service agent service account as an `Authorization` header
+     * in the HTTP request when probing.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.HttpCheck.ServiceAgentAuthentication service_agent_authentication = 14;</code>
+     * @param \Google\Cloud\Monitoring\V3\UptimeCheckConfig\HttpCheck\ServiceAgentAuthentication $var
+     * @return $this
+     */
+    public function setServiceAgentAuthentication($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\UptimeCheckConfig\HttpCheck\ServiceAgentAuthentication::class);
+        $this->writeOneof(14, $var);
+
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getAuthMethod()
+    {
+        return $this->whichOneof("auth_method");
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(HttpCheck::class, \Google\Cloud\Monitoring\V3\UptimeCheckConfig_HttpCheck::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/HttpCheck/BasicAuthentication.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/HttpCheck/BasicAuthentication.php
new file mode 100644
index 000000000000..d193ecd51c76
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/HttpCheck/BasicAuthentication.php
@@ -0,0 +1,107 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime.proto
+
+namespace Google\Cloud\Monitoring\V3\UptimeCheckConfig\HttpCheck;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The authentication parameters to provide to the specified resource or
+ * URL that requires a username and password. Currently, only
+ * [Basic HTTP authentication](https://tools.ietf.org/html/rfc7617) is
+ * supported in Uptime checks.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.UptimeCheckConfig.HttpCheck.BasicAuthentication</code>
+ */
+class BasicAuthentication extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The username to use when authenticating with the HTTP server.
+     *
+     * Generated from protobuf field <code>string username = 1;</code>
+     */
+    protected $username = '';
+    /**
+     * The password to use when authenticating with the HTTP server.
+     *
+     * Generated from protobuf field <code>string password = 2;</code>
+     */
+    protected $password = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $username
+     *           The username to use when authenticating with the HTTP server.
+     *     @type string $password
+     *           The password to use when authenticating with the HTTP server.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Uptime::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The username to use when authenticating with the HTTP server.
+     *
+     * Generated from protobuf field <code>string username = 1;</code>
+     * @return string
+     */
+    public function getUsername()
+    {
+        return $this->username;
+    }
+
+    /**
+     * The username to use when authenticating with the HTTP server.
+     *
+     * Generated from protobuf field <code>string username = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setUsername($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->username = $var;
+
+        return $this;
+    }
+
+    /**
+     * The password to use when authenticating with the HTTP server.
+     *
+     * Generated from protobuf field <code>string password = 2;</code>
+     * @return string
+     */
+    public function getPassword()
+    {
+        return $this->password;
+    }
+
+    /**
+     * The password to use when authenticating with the HTTP server.
+     *
+     * Generated from protobuf field <code>string password = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setPassword($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->password = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(BasicAuthentication::class, \Google\Cloud\Monitoring\V3\UptimeCheckConfig_HttpCheck_BasicAuthentication::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/HttpCheck/ContentType.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/HttpCheck/ContentType.php
new file mode 100644
index 000000000000..7eeb5f3ad046
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/HttpCheck/ContentType.php
@@ -0,0 +1,67 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime.proto
+
+namespace Google\Cloud\Monitoring\V3\UptimeCheckConfig\HttpCheck;
+
+use UnexpectedValueException;
+
+/**
+ * Header options corresponding to the content type of a HTTP request body.
+ *
+ * Protobuf type <code>google.monitoring.v3.UptimeCheckConfig.HttpCheck.ContentType</code>
+ */
+class ContentType
+{
+    /**
+     * No content type specified.
+     *
+     * Generated from protobuf enum <code>TYPE_UNSPECIFIED = 0;</code>
+     */
+    const TYPE_UNSPECIFIED = 0;
+    /**
+     * `body` is in URL-encoded form. Equivalent to setting the `Content-Type`
+     * to `application/x-www-form-urlencoded` in the HTTP request.
+     *
+     * Generated from protobuf enum <code>URL_ENCODED = 1;</code>
+     */
+    const URL_ENCODED = 1;
+    /**
+     * `body` is in `custom_content_type` form. Equivalent to setting the
+     * `Content-Type` to the contents of `custom_content_type` in the HTTP
+     * request.
+     *
+     * Generated from protobuf enum <code>USER_PROVIDED = 2;</code>
+     */
+    const USER_PROVIDED = 2;
+
+    private static $valueToName = [
+        self::TYPE_UNSPECIFIED => 'TYPE_UNSPECIFIED',
+        self::URL_ENCODED => 'URL_ENCODED',
+        self::USER_PROVIDED => 'USER_PROVIDED',
+    ];
+
+    public static function name($value)
+    {
+        if (!isset(self::$valueToName[$value])) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no name defined for value %s', __CLASS__, $value));
+        }
+        return self::$valueToName[$value];
+    }
+
+
+    public static function value($name)
+    {
+        $const = __CLASS__ . '::' . strtoupper($name);
+        if (!defined($const)) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no value defined for name %s', __CLASS__, $name));
+        }
+        return constant($const);
+    }
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(ContentType::class, \Google\Cloud\Monitoring\V3\UptimeCheckConfig_HttpCheck_ContentType::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/HttpCheck/RequestMethod.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/HttpCheck/RequestMethod.php
new file mode 100644
index 000000000000..981e2cbc3729
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/HttpCheck/RequestMethod.php
@@ -0,0 +1,64 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime.proto
+
+namespace Google\Cloud\Monitoring\V3\UptimeCheckConfig\HttpCheck;
+
+use UnexpectedValueException;
+
+/**
+ * The HTTP request method options.
+ *
+ * Protobuf type <code>google.monitoring.v3.UptimeCheckConfig.HttpCheck.RequestMethod</code>
+ */
+class RequestMethod
+{
+    /**
+     * No request method specified.
+     *
+     * Generated from protobuf enum <code>METHOD_UNSPECIFIED = 0;</code>
+     */
+    const METHOD_UNSPECIFIED = 0;
+    /**
+     * GET request.
+     *
+     * Generated from protobuf enum <code>GET = 1;</code>
+     */
+    const GET = 1;
+    /**
+     * POST request.
+     *
+     * Generated from protobuf enum <code>POST = 2;</code>
+     */
+    const POST = 2;
+
+    private static $valueToName = [
+        self::METHOD_UNSPECIFIED => 'METHOD_UNSPECIFIED',
+        self::GET => 'GET',
+        self::POST => 'POST',
+    ];
+
+    public static function name($value)
+    {
+        if (!isset(self::$valueToName[$value])) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no name defined for value %s', __CLASS__, $value));
+        }
+        return self::$valueToName[$value];
+    }
+
+
+    public static function value($name)
+    {
+        $const = __CLASS__ . '::' . strtoupper($name);
+        if (!defined($const)) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no value defined for name %s', __CLASS__, $name));
+        }
+        return constant($const);
+    }
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(RequestMethod::class, \Google\Cloud\Monitoring\V3\UptimeCheckConfig_HttpCheck_RequestMethod::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/HttpCheck/ResponseStatusCode.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/HttpCheck/ResponseStatusCode.php
new file mode 100644
index 000000000000..61fe31c3dabc
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/HttpCheck/ResponseStatusCode.php
@@ -0,0 +1,112 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime.proto
+
+namespace Google\Cloud\Monitoring\V3\UptimeCheckConfig\HttpCheck;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A status to accept. Either a status code class like "2xx", or an integer
+ * status code like "200".
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.UptimeCheckConfig.HttpCheck.ResponseStatusCode</code>
+ */
+class ResponseStatusCode extends \Google\Protobuf\Internal\Message
+{
+    protected $status_code;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type int $status_value
+     *           A status code to accept.
+     *     @type int $status_class
+     *           A class of status codes to accept.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Uptime::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * A status code to accept.
+     *
+     * Generated from protobuf field <code>int32 status_value = 1;</code>
+     * @return int
+     */
+    public function getStatusValue()
+    {
+        return $this->readOneof(1);
+    }
+
+    public function hasStatusValue()
+    {
+        return $this->hasOneof(1);
+    }
+
+    /**
+     * A status code to accept.
+     *
+     * Generated from protobuf field <code>int32 status_value = 1;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setStatusValue($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->writeOneof(1, $var);
+
+        return $this;
+    }
+
+    /**
+     * A class of status codes to accept.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.HttpCheck.ResponseStatusCode.StatusClass status_class = 2;</code>
+     * @return int
+     */
+    public function getStatusClass()
+    {
+        return $this->readOneof(2);
+    }
+
+    public function hasStatusClass()
+    {
+        return $this->hasOneof(2);
+    }
+
+    /**
+     * A class of status codes to accept.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.HttpCheck.ResponseStatusCode.StatusClass status_class = 2;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setStatusClass($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Cloud\Monitoring\V3\UptimeCheckConfig\HttpCheck\ResponseStatusCode\StatusClass::class);
+        $this->writeOneof(2, $var);
+
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getStatusCode()
+    {
+        return $this->whichOneof("status_code");
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(ResponseStatusCode::class, \Google\Cloud\Monitoring\V3\UptimeCheckConfig_HttpCheck_ResponseStatusCode::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/HttpCheck/ResponseStatusCode/StatusClass.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/HttpCheck/ResponseStatusCode/StatusClass.php
new file mode 100644
index 000000000000..ec9ccc03c042
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/HttpCheck/ResponseStatusCode/StatusClass.php
@@ -0,0 +1,92 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime.proto
+
+namespace Google\Cloud\Monitoring\V3\UptimeCheckConfig\HttpCheck\ResponseStatusCode;
+
+use UnexpectedValueException;
+
+/**
+ * An HTTP status code class.
+ *
+ * Protobuf type <code>google.monitoring.v3.UptimeCheckConfig.HttpCheck.ResponseStatusCode.StatusClass</code>
+ */
+class StatusClass
+{
+    /**
+     * Default value that matches no status codes.
+     *
+     * Generated from protobuf enum <code>STATUS_CLASS_UNSPECIFIED = 0;</code>
+     */
+    const STATUS_CLASS_UNSPECIFIED = 0;
+    /**
+     * The class of status codes between 100 and 199.
+     *
+     * Generated from protobuf enum <code>STATUS_CLASS_1XX = 100;</code>
+     */
+    const STATUS_CLASS_1XX = 100;
+    /**
+     * The class of status codes between 200 and 299.
+     *
+     * Generated from protobuf enum <code>STATUS_CLASS_2XX = 200;</code>
+     */
+    const STATUS_CLASS_2XX = 200;
+    /**
+     * The class of status codes between 300 and 399.
+     *
+     * Generated from protobuf enum <code>STATUS_CLASS_3XX = 300;</code>
+     */
+    const STATUS_CLASS_3XX = 300;
+    /**
+     * The class of status codes between 400 and 499.
+     *
+     * Generated from protobuf enum <code>STATUS_CLASS_4XX = 400;</code>
+     */
+    const STATUS_CLASS_4XX = 400;
+    /**
+     * The class of status codes between 500 and 599.
+     *
+     * Generated from protobuf enum <code>STATUS_CLASS_5XX = 500;</code>
+     */
+    const STATUS_CLASS_5XX = 500;
+    /**
+     * The class of all status codes.
+     *
+     * Generated from protobuf enum <code>STATUS_CLASS_ANY = 1000;</code>
+     */
+    const STATUS_CLASS_ANY = 1000;
+
+    private static $valueToName = [
+        self::STATUS_CLASS_UNSPECIFIED => 'STATUS_CLASS_UNSPECIFIED',
+        self::STATUS_CLASS_1XX => 'STATUS_CLASS_1XX',
+        self::STATUS_CLASS_2XX => 'STATUS_CLASS_2XX',
+        self::STATUS_CLASS_3XX => 'STATUS_CLASS_3XX',
+        self::STATUS_CLASS_4XX => 'STATUS_CLASS_4XX',
+        self::STATUS_CLASS_5XX => 'STATUS_CLASS_5XX',
+        self::STATUS_CLASS_ANY => 'STATUS_CLASS_ANY',
+    ];
+
+    public static function name($value)
+    {
+        if (!isset(self::$valueToName[$value])) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no name defined for value %s', __CLASS__, $value));
+        }
+        return self::$valueToName[$value];
+    }
+
+
+    public static function value($name)
+    {
+        $const = __CLASS__ . '::' . strtoupper($name);
+        if (!defined($const)) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no value defined for name %s', __CLASS__, $name));
+        }
+        return constant($const);
+    }
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(StatusClass::class, \Google\Cloud\Monitoring\V3\UptimeCheckConfig_HttpCheck_ResponseStatusCode_StatusClass::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/HttpCheck/ServiceAgentAuthentication.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/HttpCheck/ServiceAgentAuthentication.php
new file mode 100644
index 000000000000..52ef8fe4903a
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/HttpCheck/ServiceAgentAuthentication.php
@@ -0,0 +1,75 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime.proto
+
+namespace Google\Cloud\Monitoring\V3\UptimeCheckConfig\HttpCheck;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Contains information needed for generating either an
+ * [OpenID Connect
+ * token](https://developers.google.com/identity/protocols/OpenIDConnect) or
+ * [OAuth token](https://developers.google.com/identity/protocols/oauth2).
+ * The token will be generated for the Monitoring service agent service
+ * account.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.UptimeCheckConfig.HttpCheck.ServiceAgentAuthentication</code>
+ */
+class ServiceAgentAuthentication extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Type of authentication.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.HttpCheck.ServiceAgentAuthentication.ServiceAgentAuthenticationType type = 1;</code>
+     */
+    protected $type = 0;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type int $type
+     *           Type of authentication.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Uptime::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Type of authentication.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.HttpCheck.ServiceAgentAuthentication.ServiceAgentAuthenticationType type = 1;</code>
+     * @return int
+     */
+    public function getType()
+    {
+        return $this->type;
+    }
+
+    /**
+     * Type of authentication.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.HttpCheck.ServiceAgentAuthentication.ServiceAgentAuthenticationType type = 1;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setType($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Cloud\Monitoring\V3\UptimeCheckConfig\HttpCheck\ServiceAgentAuthentication\ServiceAgentAuthenticationType::class);
+        $this->type = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(ServiceAgentAuthentication::class, \Google\Cloud\Monitoring\V3\UptimeCheckConfig_HttpCheck_ServiceAgentAuthentication::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/HttpCheck/ServiceAgentAuthentication/ServiceAgentAuthenticationType.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/HttpCheck/ServiceAgentAuthentication/ServiceAgentAuthenticationType.php
new file mode 100644
index 000000000000..8b14271b462a
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/HttpCheck/ServiceAgentAuthentication/ServiceAgentAuthenticationType.php
@@ -0,0 +1,57 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime.proto
+
+namespace Google\Cloud\Monitoring\V3\UptimeCheckConfig\HttpCheck\ServiceAgentAuthentication;
+
+use UnexpectedValueException;
+
+/**
+ * Type of authentication.
+ *
+ * Protobuf type <code>google.monitoring.v3.UptimeCheckConfig.HttpCheck.ServiceAgentAuthentication.ServiceAgentAuthenticationType</code>
+ */
+class ServiceAgentAuthenticationType
+{
+    /**
+     * Default value, will result in OIDC Authentication.
+     *
+     * Generated from protobuf enum <code>SERVICE_AGENT_AUTHENTICATION_TYPE_UNSPECIFIED = 0;</code>
+     */
+    const SERVICE_AGENT_AUTHENTICATION_TYPE_UNSPECIFIED = 0;
+    /**
+     * OIDC Authentication
+     *
+     * Generated from protobuf enum <code>OIDC_TOKEN = 1;</code>
+     */
+    const OIDC_TOKEN = 1;
+
+    private static $valueToName = [
+        self::SERVICE_AGENT_AUTHENTICATION_TYPE_UNSPECIFIED => 'SERVICE_AGENT_AUTHENTICATION_TYPE_UNSPECIFIED',
+        self::OIDC_TOKEN => 'OIDC_TOKEN',
+    ];
+
+    public static function name($value)
+    {
+        if (!isset(self::$valueToName[$value])) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no name defined for value %s', __CLASS__, $value));
+        }
+        return self::$valueToName[$value];
+    }
+
+
+    public static function value($name)
+    {
+        $const = __CLASS__ . '::' . strtoupper($name);
+        if (!defined($const)) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no value defined for name %s', __CLASS__, $name));
+        }
+        return constant($const);
+    }
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(ServiceAgentAuthenticationType::class, \Google\Cloud\Monitoring\V3\UptimeCheckConfig_HttpCheck_ServiceAgentAuthentication_ServiceAgentAuthenticationType::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/PingConfig.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/PingConfig.php
new file mode 100644
index 000000000000..ae85d7f10477
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/PingConfig.php
@@ -0,0 +1,72 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime.proto
+
+namespace Google\Cloud\Monitoring\V3\UptimeCheckConfig;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Information involved in sending ICMP pings alongside public HTTP/TCP
+ * checks. For HTTP, the pings are performed for each part of the redirect
+ * chain.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.UptimeCheckConfig.PingConfig</code>
+ */
+class PingConfig extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Number of ICMP pings. A maximum of 3 ICMP pings is currently supported.
+     *
+     * Generated from protobuf field <code>int32 pings_count = 1;</code>
+     */
+    protected $pings_count = 0;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type int $pings_count
+     *           Number of ICMP pings. A maximum of 3 ICMP pings is currently supported.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Uptime::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Number of ICMP pings. A maximum of 3 ICMP pings is currently supported.
+     *
+     * Generated from protobuf field <code>int32 pings_count = 1;</code>
+     * @return int
+     */
+    public function getPingsCount()
+    {
+        return $this->pings_count;
+    }
+
+    /**
+     * Number of ICMP pings. A maximum of 3 ICMP pings is currently supported.
+     *
+     * Generated from protobuf field <code>int32 pings_count = 1;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setPingsCount($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->pings_count = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(PingConfig::class, \Google\Cloud\Monitoring\V3\UptimeCheckConfig_PingConfig::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/ResourceGroup.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/ResourceGroup.php
new file mode 100644
index 000000000000..25ef6cb80c61
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/ResourceGroup.php
@@ -0,0 +1,113 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime.proto
+
+namespace Google\Cloud\Monitoring\V3\UptimeCheckConfig;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The resource submessage for group checks. It can be used instead of a
+ * monitored resource, when multiple resources are being monitored.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.UptimeCheckConfig.ResourceGroup</code>
+ */
+class ResourceGroup extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The group of resources being monitored. Should be only the `[GROUP_ID]`,
+     * and not the full-path
+     * `projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]`.
+     *
+     * Generated from protobuf field <code>string group_id = 1;</code>
+     */
+    protected $group_id = '';
+    /**
+     * The resource type of the group members.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.GroupResourceType resource_type = 2;</code>
+     */
+    protected $resource_type = 0;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $group_id
+     *           The group of resources being monitored. Should be only the `[GROUP_ID]`,
+     *           and not the full-path
+     *           `projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]`.
+     *     @type int $resource_type
+     *           The resource type of the group members.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Uptime::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The group of resources being monitored. Should be only the `[GROUP_ID]`,
+     * and not the full-path
+     * `projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]`.
+     *
+     * Generated from protobuf field <code>string group_id = 1;</code>
+     * @return string
+     */
+    public function getGroupId()
+    {
+        return $this->group_id;
+    }
+
+    /**
+     * The group of resources being monitored. Should be only the `[GROUP_ID]`,
+     * and not the full-path
+     * `projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]`.
+     *
+     * Generated from protobuf field <code>string group_id = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setGroupId($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->group_id = $var;
+
+        return $this;
+    }
+
+    /**
+     * The resource type of the group members.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.GroupResourceType resource_type = 2;</code>
+     * @return int
+     */
+    public function getResourceType()
+    {
+        return $this->resource_type;
+    }
+
+    /**
+     * The resource type of the group members.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.GroupResourceType resource_type = 2;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setResourceType($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Cloud\Monitoring\V3\GroupResourceType::class);
+        $this->resource_type = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(ResourceGroup::class, \Google\Cloud\Monitoring\V3\UptimeCheckConfig_ResourceGroup::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/TcpCheck.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/TcpCheck.php
new file mode 100644
index 000000000000..09c0668c3b3b
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckConfig/TcpCheck.php
@@ -0,0 +1,122 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime.proto
+
+namespace Google\Cloud\Monitoring\V3\UptimeCheckConfig;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Information required for a TCP Uptime check request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.UptimeCheckConfig.TcpCheck</code>
+ */
+class TcpCheck extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * The TCP port on the server against which to run the check. Will be
+     * combined with host (specified within the `monitored_resource`) to
+     * construct the full URL. Required.
+     *
+     * Generated from protobuf field <code>int32 port = 1;</code>
+     */
+    protected $port = 0;
+    /**
+     * Contains information needed to add pings to a TCP check.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.PingConfig ping_config = 2;</code>
+     */
+    protected $ping_config = null;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type int $port
+     *           The TCP port on the server against which to run the check. Will be
+     *           combined with host (specified within the `monitored_resource`) to
+     *           construct the full URL. Required.
+     *     @type \Google\Cloud\Monitoring\V3\UptimeCheckConfig\PingConfig $ping_config
+     *           Contains information needed to add pings to a TCP check.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Uptime::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * The TCP port on the server against which to run the check. Will be
+     * combined with host (specified within the `monitored_resource`) to
+     * construct the full URL. Required.
+     *
+     * Generated from protobuf field <code>int32 port = 1;</code>
+     * @return int
+     */
+    public function getPort()
+    {
+        return $this->port;
+    }
+
+    /**
+     * The TCP port on the server against which to run the check. Will be
+     * combined with host (specified within the `monitored_resource`) to
+     * construct the full URL. Required.
+     *
+     * Generated from protobuf field <code>int32 port = 1;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setPort($var)
+    {
+        GPBUtil::checkInt32($var);
+        $this->port = $var;
+
+        return $this;
+    }
+
+    /**
+     * Contains information needed to add pings to a TCP check.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.PingConfig ping_config = 2;</code>
+     * @return \Google\Cloud\Monitoring\V3\UptimeCheckConfig\PingConfig|null
+     */
+    public function getPingConfig()
+    {
+        return $this->ping_config;
+    }
+
+    public function hasPingConfig()
+    {
+        return isset($this->ping_config);
+    }
+
+    public function clearPingConfig()
+    {
+        unset($this->ping_config);
+    }
+
+    /**
+     * Contains information needed to add pings to a TCP check.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckConfig.PingConfig ping_config = 2;</code>
+     * @param \Google\Cloud\Monitoring\V3\UptimeCheckConfig\PingConfig $var
+     * @return $this
+     */
+    public function setPingConfig($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\UptimeCheckConfig\PingConfig::class);
+        $this->ping_config = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(TcpCheck::class, \Google\Cloud\Monitoring\V3\UptimeCheckConfig_TcpCheck::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckIp.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckIp.php
new file mode 100644
index 000000000000..8eb3b2a696b7
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckIp.php
@@ -0,0 +1,160 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * Contains the region, location, and list of IP
+ * addresses where checkers in the location run from.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.UptimeCheckIp</code>
+ */
+class UptimeCheckIp extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * A broad region category in which the IP address is located.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckRegion region = 1;</code>
+     */
+    protected $region = 0;
+    /**
+     * A more specific location within the region that typically encodes
+     * a particular city/town/metro (and its containing state/province or country)
+     * within the broader umbrella region category.
+     *
+     * Generated from protobuf field <code>string location = 2;</code>
+     */
+    protected $location = '';
+    /**
+     * The IP address from which the Uptime check originates. This is a fully
+     * specified IP address (not an IP address range). Most IP addresses, as of
+     * this publication, are in IPv4 format; however, one should not rely on the
+     * IP addresses being in IPv4 format indefinitely, and should support
+     * interpreting this field in either IPv4 or IPv6 format.
+     *
+     * Generated from protobuf field <code>string ip_address = 3;</code>
+     */
+    protected $ip_address = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type int $region
+     *           A broad region category in which the IP address is located.
+     *     @type string $location
+     *           A more specific location within the region that typically encodes
+     *           a particular city/town/metro (and its containing state/province or country)
+     *           within the broader umbrella region category.
+     *     @type string $ip_address
+     *           The IP address from which the Uptime check originates. This is a fully
+     *           specified IP address (not an IP address range). Most IP addresses, as of
+     *           this publication, are in IPv4 format; however, one should not rely on the
+     *           IP addresses being in IPv4 format indefinitely, and should support
+     *           interpreting this field in either IPv4 or IPv6 format.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Uptime::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * A broad region category in which the IP address is located.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckRegion region = 1;</code>
+     * @return int
+     */
+    public function getRegion()
+    {
+        return $this->region;
+    }
+
+    /**
+     * A broad region category in which the IP address is located.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.UptimeCheckRegion region = 1;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setRegion($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Cloud\Monitoring\V3\UptimeCheckRegion::class);
+        $this->region = $var;
+
+        return $this;
+    }
+
+    /**
+     * A more specific location within the region that typically encodes
+     * a particular city/town/metro (and its containing state/province or country)
+     * within the broader umbrella region category.
+     *
+     * Generated from protobuf field <code>string location = 2;</code>
+     * @return string
+     */
+    public function getLocation()
+    {
+        return $this->location;
+    }
+
+    /**
+     * A more specific location within the region that typically encodes
+     * a particular city/town/metro (and its containing state/province or country)
+     * within the broader umbrella region category.
+     *
+     * Generated from protobuf field <code>string location = 2;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setLocation($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->location = $var;
+
+        return $this;
+    }
+
+    /**
+     * The IP address from which the Uptime check originates. This is a fully
+     * specified IP address (not an IP address range). Most IP addresses, as of
+     * this publication, are in IPv4 format; however, one should not rely on the
+     * IP addresses being in IPv4 format indefinitely, and should support
+     * interpreting this field in either IPv4 or IPv6 format.
+     *
+     * Generated from protobuf field <code>string ip_address = 3;</code>
+     * @return string
+     */
+    public function getIpAddress()
+    {
+        return $this->ip_address;
+    }
+
+    /**
+     * The IP address from which the Uptime check originates. This is a fully
+     * specified IP address (not an IP address range). Most IP addresses, as of
+     * this publication, are in IPv4 format; however, one should not rely on the
+     * IP addresses being in IPv4 format indefinitely, and should support
+     * interpreting this field in either IPv4 or IPv6 format.
+     *
+     * Generated from protobuf field <code>string ip_address = 3;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setIpAddress($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->ip_address = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckRegion.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckRegion.php
new file mode 100644
index 000000000000..8524b68cf0f7
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/UptimeCheckRegion.php
@@ -0,0 +1,102 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/uptime.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use UnexpectedValueException;
+
+/**
+ * The regions from which an Uptime check can be run.
+ *
+ * Protobuf type <code>google.monitoring.v3.UptimeCheckRegion</code>
+ */
+class UptimeCheckRegion
+{
+    /**
+     * Default value if no region is specified. Will result in Uptime checks
+     * running from all regions.
+     *
+     * Generated from protobuf enum <code>REGION_UNSPECIFIED = 0;</code>
+     */
+    const REGION_UNSPECIFIED = 0;
+    /**
+     * Allows checks to run from locations within the United States of America.
+     *
+     * Generated from protobuf enum <code>USA = 1;</code>
+     */
+    const USA = 1;
+    /**
+     * Allows checks to run from locations within the continent of Europe.
+     *
+     * Generated from protobuf enum <code>EUROPE = 2;</code>
+     */
+    const EUROPE = 2;
+    /**
+     * Allows checks to run from locations within the continent of South
+     * America.
+     *
+     * Generated from protobuf enum <code>SOUTH_AMERICA = 3;</code>
+     */
+    const SOUTH_AMERICA = 3;
+    /**
+     * Allows checks to run from locations within the Asia Pacific area (ex:
+     * Singapore).
+     *
+     * Generated from protobuf enum <code>ASIA_PACIFIC = 4;</code>
+     */
+    const ASIA_PACIFIC = 4;
+    /**
+     * Allows checks to run from locations within the western United States of
+     * America
+     *
+     * Generated from protobuf enum <code>USA_OREGON = 5;</code>
+     */
+    const USA_OREGON = 5;
+    /**
+     * Allows checks to run from locations within the central United States of
+     * America
+     *
+     * Generated from protobuf enum <code>USA_IOWA = 6;</code>
+     */
+    const USA_IOWA = 6;
+    /**
+     * Allows checks to run from locations within the eastern United States of
+     * America
+     *
+     * Generated from protobuf enum <code>USA_VIRGINIA = 7;</code>
+     */
+    const USA_VIRGINIA = 7;
+
+    private static $valueToName = [
+        self::REGION_UNSPECIFIED => 'REGION_UNSPECIFIED',
+        self::USA => 'USA',
+        self::EUROPE => 'EUROPE',
+        self::SOUTH_AMERICA => 'SOUTH_AMERICA',
+        self::ASIA_PACIFIC => 'ASIA_PACIFIC',
+        self::USA_OREGON => 'USA_OREGON',
+        self::USA_IOWA => 'USA_IOWA',
+        self::USA_VIRGINIA => 'USA_VIRGINIA',
+    ];
+
+    public static function name($value)
+    {
+        if (!isset(self::$valueToName[$value])) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no name defined for value %s', __CLASS__, $value));
+        }
+        return self::$valueToName[$value];
+    }
+
+
+    public static function value($name)
+    {
+        $const = __CLASS__ . '::' . strtoupper($name);
+        if (!defined($const)) {
+            throw new UnexpectedValueException(sprintf(
+                    'Enum %s has no value defined for name %s', __CLASS__, $name));
+        }
+        return constant($const);
+    }
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/VerifyNotificationChannelRequest.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/VerifyNotificationChannelRequest.php
new file mode 100644
index 000000000000..95410209d065
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/VerifyNotificationChannelRequest.php
@@ -0,0 +1,147 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/notification_service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The `VerifyNotificationChannel` request.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.VerifyNotificationChannelRequest</code>
+ */
+class VerifyNotificationChannelRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Required. The notification channel to verify.
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     */
+    protected $name = '';
+    /**
+     * Required. The verification code that was delivered to the channel as
+     * a result of invoking the `SendNotificationChannelVerificationCode` API
+     * method or that was retrieved from a verified channel via
+     * `GetNotificationChannelVerificationCode`. For example, one might have
+     * "G-123456" or "TKNZGhhd2EyN3I1MnRnMjRv" (in general, one is only
+     * guaranteed that the code is valid UTF-8; one should not
+     * make any assumptions regarding the structure or format of the code).
+     *
+     * Generated from protobuf field <code>string code = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    protected $code = '';
+
+    /**
+     * @param string $name Required. The notification channel to verify. Please see
+     *                     {@see NotificationChannelServiceClient::notificationChannelName()} for help formatting this field.
+     * @param string $code Required. The verification code that was delivered to the channel as
+     *                     a result of invoking the `SendNotificationChannelVerificationCode` API
+     *                     method or that was retrieved from a verified channel via
+     *                     `GetNotificationChannelVerificationCode`. For example, one might have
+     *                     "G-123456" or "TKNZGhhd2EyN3I1MnRnMjRv" (in general, one is only
+     *                     guaranteed that the code is valid UTF-8; one should not
+     *                     make any assumptions regarding the structure or format of the code).
+     *
+     * @return \Google\Cloud\Monitoring\V3\VerifyNotificationChannelRequest
+     *
+     * @experimental
+     */
+    public static function build(string $name, string $code): self
+    {
+        return (new self())
+            ->setName($name)
+            ->setCode($code);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     *           Required. The notification channel to verify.
+     *     @type string $code
+     *           Required. The verification code that was delivered to the channel as
+     *           a result of invoking the `SendNotificationChannelVerificationCode` API
+     *           method or that was retrieved from a verified channel via
+     *           `GetNotificationChannelVerificationCode`. For example, one might have
+     *           "G-123456" or "TKNZGhhd2EyN3I1MnRnMjRv" (in general, one is only
+     *           guaranteed that the code is valid UTF-8; one should not
+     *           make any assumptions regarding the structure or format of the code).
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\NotificationService::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Required. The notification channel to verify.
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Required. The notification channel to verify.
+     *
+     * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+    /**
+     * Required. The verification code that was delivered to the channel as
+     * a result of invoking the `SendNotificationChannelVerificationCode` API
+     * method or that was retrieved from a verified channel via
+     * `GetNotificationChannelVerificationCode`. For example, one might have
+     * "G-123456" or "TKNZGhhd2EyN3I1MnRnMjRv" (in general, one is only
+     * guaranteed that the code is valid UTF-8; one should not
+     * make any assumptions regarding the structure or format of the code).
+     *
+     * Generated from protobuf field <code>string code = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return string
+     */
+    public function getCode()
+    {
+        return $this->code;
+    }
+
+    /**
+     * Required. The verification code that was delivered to the channel as
+     * a result of invoking the `SendNotificationChannelVerificationCode` API
+     * method or that was retrieved from a verified channel via
+     * `GetNotificationChannelVerificationCode`. For example, one might have
+     * "G-123456" or "TKNZGhhd2EyN3I1MnRnMjRv" (in general, one is only
+     * guaranteed that the code is valid UTF-8; one should not
+     * make any assumptions regarding the structure or format of the code).
+     *
+     * Generated from protobuf field <code>string code = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setCode($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->code = $var;
+
+        return $this;
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/WindowsBasedSli.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/WindowsBasedSli.php
new file mode 100644
index 000000000000..f049ead8c434
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/WindowsBasedSli.php
@@ -0,0 +1,236 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service.proto
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A `WindowsBasedSli` defines `good_service` as the count of time windows for
+ * which the provided service was of good quality. Criteria for determining
+ * if service was good are embedded in the `window_criterion`.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.WindowsBasedSli</code>
+ */
+class WindowsBasedSli extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Duration over which window quality is evaluated. Must be an integer
+     * fraction of a day and at least `60s`.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration window_period = 4;</code>
+     */
+    protected $window_period = null;
+    protected $window_criterion;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $good_bad_metric_filter
+     *           A [monitoring filter](https://cloud.google.com/monitoring/api/v3/filters)
+     *           specifying a `TimeSeries` with `ValueType = BOOL`. The window is good if
+     *           any `true` values appear in the window.
+     *     @type \Google\Cloud\Monitoring\V3\WindowsBasedSli\PerformanceThreshold $good_total_ratio_threshold
+     *           A window is good if its `performance` is high enough.
+     *     @type \Google\Cloud\Monitoring\V3\WindowsBasedSli\MetricRange $metric_mean_in_range
+     *           A window is good if the metric's value is in a good range, averaged
+     *           across returned streams.
+     *     @type \Google\Cloud\Monitoring\V3\WindowsBasedSli\MetricRange $metric_sum_in_range
+     *           A window is good if the metric's value is in a good range, summed across
+     *           returned streams.
+     *     @type \Google\Protobuf\Duration $window_period
+     *           Duration over which window quality is evaluated. Must be an integer
+     *           fraction of a day and at least `60s`.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Service::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * A [monitoring filter](https://cloud.google.com/monitoring/api/v3/filters)
+     * specifying a `TimeSeries` with `ValueType = BOOL`. The window is good if
+     * any `true` values appear in the window.
+     *
+     * Generated from protobuf field <code>string good_bad_metric_filter = 5;</code>
+     * @return string
+     */
+    public function getGoodBadMetricFilter()
+    {
+        return $this->readOneof(5);
+    }
+
+    public function hasGoodBadMetricFilter()
+    {
+        return $this->hasOneof(5);
+    }
+
+    /**
+     * A [monitoring filter](https://cloud.google.com/monitoring/api/v3/filters)
+     * specifying a `TimeSeries` with `ValueType = BOOL`. The window is good if
+     * any `true` values appear in the window.
+     *
+     * Generated from protobuf field <code>string good_bad_metric_filter = 5;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setGoodBadMetricFilter($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->writeOneof(5, $var);
+
+        return $this;
+    }
+
+    /**
+     * A window is good if its `performance` is high enough.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.WindowsBasedSli.PerformanceThreshold good_total_ratio_threshold = 2;</code>
+     * @return \Google\Cloud\Monitoring\V3\WindowsBasedSli\PerformanceThreshold|null
+     */
+    public function getGoodTotalRatioThreshold()
+    {
+        return $this->readOneof(2);
+    }
+
+    public function hasGoodTotalRatioThreshold()
+    {
+        return $this->hasOneof(2);
+    }
+
+    /**
+     * A window is good if its `performance` is high enough.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.WindowsBasedSli.PerformanceThreshold good_total_ratio_threshold = 2;</code>
+     * @param \Google\Cloud\Monitoring\V3\WindowsBasedSli\PerformanceThreshold $var
+     * @return $this
+     */
+    public function setGoodTotalRatioThreshold($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\WindowsBasedSli\PerformanceThreshold::class);
+        $this->writeOneof(2, $var);
+
+        return $this;
+    }
+
+    /**
+     * A window is good if the metric's value is in a good range, averaged
+     * across returned streams.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.WindowsBasedSli.MetricRange metric_mean_in_range = 6;</code>
+     * @return \Google\Cloud\Monitoring\V3\WindowsBasedSli\MetricRange|null
+     */
+    public function getMetricMeanInRange()
+    {
+        return $this->readOneof(6);
+    }
+
+    public function hasMetricMeanInRange()
+    {
+        return $this->hasOneof(6);
+    }
+
+    /**
+     * A window is good if the metric's value is in a good range, averaged
+     * across returned streams.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.WindowsBasedSli.MetricRange metric_mean_in_range = 6;</code>
+     * @param \Google\Cloud\Monitoring\V3\WindowsBasedSli\MetricRange $var
+     * @return $this
+     */
+    public function setMetricMeanInRange($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\WindowsBasedSli\MetricRange::class);
+        $this->writeOneof(6, $var);
+
+        return $this;
+    }
+
+    /**
+     * A window is good if the metric's value is in a good range, summed across
+     * returned streams.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.WindowsBasedSli.MetricRange metric_sum_in_range = 7;</code>
+     * @return \Google\Cloud\Monitoring\V3\WindowsBasedSli\MetricRange|null
+     */
+    public function getMetricSumInRange()
+    {
+        return $this->readOneof(7);
+    }
+
+    public function hasMetricSumInRange()
+    {
+        return $this->hasOneof(7);
+    }
+
+    /**
+     * A window is good if the metric's value is in a good range, summed across
+     * returned streams.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.WindowsBasedSli.MetricRange metric_sum_in_range = 7;</code>
+     * @param \Google\Cloud\Monitoring\V3\WindowsBasedSli\MetricRange $var
+     * @return $this
+     */
+    public function setMetricSumInRange($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\WindowsBasedSli\MetricRange::class);
+        $this->writeOneof(7, $var);
+
+        return $this;
+    }
+
+    /**
+     * Duration over which window quality is evaluated. Must be an integer
+     * fraction of a day and at least `60s`.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration window_period = 4;</code>
+     * @return \Google\Protobuf\Duration|null
+     */
+    public function getWindowPeriod()
+    {
+        return $this->window_period;
+    }
+
+    public function hasWindowPeriod()
+    {
+        return isset($this->window_period);
+    }
+
+    public function clearWindowPeriod()
+    {
+        unset($this->window_period);
+    }
+
+    /**
+     * Duration over which window quality is evaluated. Must be an integer
+     * fraction of a day and at least `60s`.
+     *
+     * Generated from protobuf field <code>.google.protobuf.Duration window_period = 4;</code>
+     * @param \Google\Protobuf\Duration $var
+     * @return $this
+     */
+    public function setWindowPeriod($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Protobuf\Duration::class);
+        $this->window_period = $var;
+
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getWindowCriterion()
+    {
+        return $this->whichOneof("window_criterion");
+    }
+
+}
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/WindowsBasedSli/MetricRange.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/WindowsBasedSli/MetricRange.php
new file mode 100644
index 000000000000..2a86a24e4eab
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/WindowsBasedSli/MetricRange.php
@@ -0,0 +1,125 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service.proto
+
+namespace Google\Cloud\Monitoring\V3\WindowsBasedSli;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A `MetricRange` is used when each window is good when the value x of a
+ * single `TimeSeries` satisfies `range.min <= x <= range.max`. The provided
+ * `TimeSeries` must have `ValueType = INT64` or `ValueType = DOUBLE` and
+ * `MetricKind = GAUGE`.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.WindowsBasedSli.MetricRange</code>
+ */
+class MetricRange extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * A [monitoring filter](https://cloud.google.com/monitoring/api/v3/filters)
+     * specifying the `TimeSeries` to use for evaluating window quality.
+     *
+     * Generated from protobuf field <code>string time_series = 1;</code>
+     */
+    protected $time_series = '';
+    /**
+     * Range of values considered "good." For a one-sided range, set one bound
+     * to an infinite value.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Range range = 4;</code>
+     */
+    protected $range = null;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $time_series
+     *           A [monitoring filter](https://cloud.google.com/monitoring/api/v3/filters)
+     *           specifying the `TimeSeries` to use for evaluating window quality.
+     *     @type \Google\Cloud\Monitoring\V3\Range $range
+     *           Range of values considered "good." For a one-sided range, set one bound
+     *           to an infinite value.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Service::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * A [monitoring filter](https://cloud.google.com/monitoring/api/v3/filters)
+     * specifying the `TimeSeries` to use for evaluating window quality.
+     *
+     * Generated from protobuf field <code>string time_series = 1;</code>
+     * @return string
+     */
+    public function getTimeSeries()
+    {
+        return $this->time_series;
+    }
+
+    /**
+     * A [monitoring filter](https://cloud.google.com/monitoring/api/v3/filters)
+     * specifying the `TimeSeries` to use for evaluating window quality.
+     *
+     * Generated from protobuf field <code>string time_series = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setTimeSeries($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->time_series = $var;
+
+        return $this;
+    }
+
+    /**
+     * Range of values considered "good." For a one-sided range, set one bound
+     * to an infinite value.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Range range = 4;</code>
+     * @return \Google\Cloud\Monitoring\V3\Range|null
+     */
+    public function getRange()
+    {
+        return $this->range;
+    }
+
+    public function hasRange()
+    {
+        return isset($this->range);
+    }
+
+    public function clearRange()
+    {
+        unset($this->range);
+    }
+
+    /**
+     * Range of values considered "good." For a one-sided range, set one bound
+     * to an infinite value.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.Range range = 4;</code>
+     * @param \Google\Cloud\Monitoring\V3\Range $var
+     * @return $this
+     */
+    public function setRange($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\Range::class);
+        $this->range = $var;
+
+        return $this;
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(MetricRange::class, \Google\Cloud\Monitoring\V3\WindowsBasedSli_MetricRange::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/WindowsBasedSli/PerformanceThreshold.php b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/WindowsBasedSli/PerformanceThreshold.php
new file mode 100644
index 000000000000..7ff22f3a6770
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/proto/src/Google/Cloud/Monitoring/V3/WindowsBasedSli/PerformanceThreshold.php
@@ -0,0 +1,146 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/monitoring/v3/service.proto
+
+namespace Google\Cloud\Monitoring\V3\WindowsBasedSli;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * A `PerformanceThreshold` is used when each window is good when that window
+ * has a sufficiently high `performance`.
+ *
+ * Generated from protobuf message <code>google.monitoring.v3.WindowsBasedSli.PerformanceThreshold</code>
+ */
+class PerformanceThreshold extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * If window `performance >= threshold`, the window is counted as good.
+     *
+     * Generated from protobuf field <code>double threshold = 2;</code>
+     */
+    protected $threshold = 0.0;
+    protected $type;
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type \Google\Cloud\Monitoring\V3\RequestBasedSli $performance
+     *           `RequestBasedSli` to evaluate to judge window quality.
+     *     @type \Google\Cloud\Monitoring\V3\BasicSli $basic_sli_performance
+     *           `BasicSli` to evaluate to judge window quality.
+     *     @type float $threshold
+     *           If window `performance >= threshold`, the window is counted as good.
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Monitoring\V3\Service::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * `RequestBasedSli` to evaluate to judge window quality.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.RequestBasedSli performance = 1;</code>
+     * @return \Google\Cloud\Monitoring\V3\RequestBasedSli|null
+     */
+    public function getPerformance()
+    {
+        return $this->readOneof(1);
+    }
+
+    public function hasPerformance()
+    {
+        return $this->hasOneof(1);
+    }
+
+    /**
+     * `RequestBasedSli` to evaluate to judge window quality.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.RequestBasedSli performance = 1;</code>
+     * @param \Google\Cloud\Monitoring\V3\RequestBasedSli $var
+     * @return $this
+     */
+    public function setPerformance($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\RequestBasedSli::class);
+        $this->writeOneof(1, $var);
+
+        return $this;
+    }
+
+    /**
+     * `BasicSli` to evaluate to judge window quality.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.BasicSli basic_sli_performance = 3;</code>
+     * @return \Google\Cloud\Monitoring\V3\BasicSli|null
+     */
+    public function getBasicSliPerformance()
+    {
+        return $this->readOneof(3);
+    }
+
+    public function hasBasicSliPerformance()
+    {
+        return $this->hasOneof(3);
+    }
+
+    /**
+     * `BasicSli` to evaluate to judge window quality.
+     *
+     * Generated from protobuf field <code>.google.monitoring.v3.BasicSli basic_sli_performance = 3;</code>
+     * @param \Google\Cloud\Monitoring\V3\BasicSli $var
+     * @return $this
+     */
+    public function setBasicSliPerformance($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Monitoring\V3\BasicSli::class);
+        $this->writeOneof(3, $var);
+
+        return $this;
+    }
+
+    /**
+     * If window `performance >= threshold`, the window is counted as good.
+     *
+     * Generated from protobuf field <code>double threshold = 2;</code>
+     * @return float
+     */
+    public function getThreshold()
+    {
+        return $this->threshold;
+    }
+
+    /**
+     * If window `performance >= threshold`, the window is counted as good.
+     *
+     * Generated from protobuf field <code>double threshold = 2;</code>
+     * @param float $var
+     * @return $this
+     */
+    public function setThreshold($var)
+    {
+        GPBUtil::checkDouble($var);
+        $this->threshold = $var;
+
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getType()
+    {
+        return $this->whichOneof("type");
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(PerformanceThreshold::class, \Google\Cloud\Monitoring\V3\WindowsBasedSli_PerformanceThreshold::class);
+
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/AlertPolicyServiceClient/create_alert_policy.php b/owl-bot-staging/Monitoring/v3/samples/V3/AlertPolicyServiceClient/create_alert_policy.php
new file mode 100644
index 000000000000..8da94f5c6a84
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/AlertPolicyServiceClient/create_alert_policy.php
@@ -0,0 +1,88 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_AlertPolicyService_CreateAlertPolicy_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\AlertPolicy;
+use Google\Cloud\Monitoring\V3\Client\AlertPolicyServiceClient;
+use Google\Cloud\Monitoring\V3\CreateAlertPolicyRequest;
+
+/**
+ * Creates a new alerting policy.
+ *
+ * Design your application to single-thread API calls that modify the state of
+ * alerting policies in a single project. This includes calls to
+ * CreateAlertPolicy, DeleteAlertPolicy and UpdateAlertPolicy.
+ *
+ * @param string $name The
+ *                     [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+ *                     to create the alerting policy. The format is:
+ *
+ *                     projects/[PROJECT_ID_OR_NUMBER]
+ *
+ *                     Note that this field names the parent container in which the alerting
+ *                     policy will be written, not the name of the created policy. |name| must be
+ *                     a host project of a Metrics Scope, otherwise INVALID_ARGUMENT error will
+ *                     return. The alerting policy that is returned will have a name that contains
+ *                     a normalized representation of this name as a prefix but adds a suffix of
+ *                     the form `/alertPolicies/[ALERT_POLICY_ID]`, identifying the policy in the
+ *                     container.
+ */
+function create_alert_policy_sample(string $name): void
+{
+    // Create a client.
+    $alertPolicyServiceClient = new AlertPolicyServiceClient();
+
+    // Prepare the request message.
+    $alertPolicy = new AlertPolicy();
+    $request = (new CreateAlertPolicyRequest())
+        ->setName($name)
+        ->setAlertPolicy($alertPolicy);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var AlertPolicy $response */
+        $response = $alertPolicyServiceClient->createAlertPolicy($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $name = '[NAME]';
+
+    create_alert_policy_sample($name);
+}
+// [END monitoring_v3_generated_AlertPolicyService_CreateAlertPolicy_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/AlertPolicyServiceClient/delete_alert_policy.php b/owl-bot-staging/Monitoring/v3/samples/V3/AlertPolicyServiceClient/delete_alert_policy.php
new file mode 100644
index 000000000000..20341bb9cedc
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/AlertPolicyServiceClient/delete_alert_policy.php
@@ -0,0 +1,77 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_AlertPolicyService_DeleteAlertPolicy_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\AlertPolicyServiceClient;
+use Google\Cloud\Monitoring\V3\DeleteAlertPolicyRequest;
+
+/**
+ * Deletes an alerting policy.
+ *
+ * Design your application to single-thread API calls that modify the state of
+ * alerting policies in a single project. This includes calls to
+ * CreateAlertPolicy, DeleteAlertPolicy and UpdateAlertPolicy.
+ *
+ * @param string $formattedName The alerting policy to delete. The format is:
+ *
+ *                              projects/[PROJECT_ID_OR_NUMBER]/alertPolicies/[ALERT_POLICY_ID]
+ *
+ *                              For more information, see [AlertPolicy][google.monitoring.v3.AlertPolicy]. Please see
+ *                              {@see AlertPolicyServiceClient::alertPolicyName()} for help formatting this field.
+ */
+function delete_alert_policy_sample(string $formattedName): void
+{
+    // Create a client.
+    $alertPolicyServiceClient = new AlertPolicyServiceClient();
+
+    // Prepare the request message.
+    $request = (new DeleteAlertPolicyRequest())
+        ->setName($formattedName);
+
+    // Call the API and handle any network failures.
+    try {
+        $alertPolicyServiceClient->deleteAlertPolicy($request);
+        printf('Call completed successfully.' . PHP_EOL);
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedName = AlertPolicyServiceClient::alertPolicyName('[PROJECT]', '[ALERT_POLICY]');
+
+    delete_alert_policy_sample($formattedName);
+}
+// [END monitoring_v3_generated_AlertPolicyService_DeleteAlertPolicy_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/AlertPolicyServiceClient/get_alert_policy.php b/owl-bot-staging/Monitoring/v3/samples/V3/AlertPolicyServiceClient/get_alert_policy.php
new file mode 100644
index 000000000000..a6b8ef21ad66
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/AlertPolicyServiceClient/get_alert_policy.php
@@ -0,0 +1,73 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_AlertPolicyService_GetAlertPolicy_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\AlertPolicy;
+use Google\Cloud\Monitoring\V3\Client\AlertPolicyServiceClient;
+use Google\Cloud\Monitoring\V3\GetAlertPolicyRequest;
+
+/**
+ * Gets a single alerting policy.
+ *
+ * @param string $formattedName The alerting policy to retrieve. The format is:
+ *
+ *                              projects/[PROJECT_ID_OR_NUMBER]/alertPolicies/[ALERT_POLICY_ID]
+ *                              Please see {@see AlertPolicyServiceClient::alertPolicyName()} for help formatting this field.
+ */
+function get_alert_policy_sample(string $formattedName): void
+{
+    // Create a client.
+    $alertPolicyServiceClient = new AlertPolicyServiceClient();
+
+    // Prepare the request message.
+    $request = (new GetAlertPolicyRequest())
+        ->setName($formattedName);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var AlertPolicy $response */
+        $response = $alertPolicyServiceClient->getAlertPolicy($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedName = AlertPolicyServiceClient::alertPolicyName('[PROJECT]', '[ALERT_POLICY]');
+
+    get_alert_policy_sample($formattedName);
+}
+// [END monitoring_v3_generated_AlertPolicyService_GetAlertPolicy_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/AlertPolicyServiceClient/list_alert_policies.php b/owl-bot-staging/Monitoring/v3/samples/V3/AlertPolicyServiceClient/list_alert_policies.php
new file mode 100644
index 000000000000..dc60fddad14f
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/AlertPolicyServiceClient/list_alert_policies.php
@@ -0,0 +1,85 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_AlertPolicyService_ListAlertPolicies_sync]
+use Google\ApiCore\ApiException;
+use Google\ApiCore\PagedListResponse;
+use Google\Cloud\Monitoring\V3\AlertPolicy;
+use Google\Cloud\Monitoring\V3\Client\AlertPolicyServiceClient;
+use Google\Cloud\Monitoring\V3\ListAlertPoliciesRequest;
+
+/**
+ * Lists the existing alerting policies for the workspace.
+ *
+ * @param string $name The
+ *                     [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+ *                     alert policies are to be listed. The format is:
+ *
+ *                     projects/[PROJECT_ID_OR_NUMBER]
+ *
+ *                     Note that this field names the parent container in which the alerting
+ *                     policies to be listed are stored. To retrieve a single alerting policy
+ *                     by name, use the
+ *                     [GetAlertPolicy][google.monitoring.v3.AlertPolicyService.GetAlertPolicy]
+ *                     operation, instead.
+ */
+function list_alert_policies_sample(string $name): void
+{
+    // Create a client.
+    $alertPolicyServiceClient = new AlertPolicyServiceClient();
+
+    // Prepare the request message.
+    $request = (new ListAlertPoliciesRequest())
+        ->setName($name);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var PagedListResponse $response */
+        $response = $alertPolicyServiceClient->listAlertPolicies($request);
+
+        /** @var AlertPolicy $element */
+        foreach ($response as $element) {
+            printf('Element data: %s' . PHP_EOL, $element->serializeToJsonString());
+        }
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $name = '[NAME]';
+
+    list_alert_policies_sample($name);
+}
+// [END monitoring_v3_generated_AlertPolicyService_ListAlertPolicies_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/AlertPolicyServiceClient/update_alert_policy.php b/owl-bot-staging/Monitoring/v3/samples/V3/AlertPolicyServiceClient/update_alert_policy.php
new file mode 100644
index 000000000000..d4f9c5060ec7
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/AlertPolicyServiceClient/update_alert_policy.php
@@ -0,0 +1,66 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_AlertPolicyService_UpdateAlertPolicy_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\AlertPolicy;
+use Google\Cloud\Monitoring\V3\Client\AlertPolicyServiceClient;
+use Google\Cloud\Monitoring\V3\UpdateAlertPolicyRequest;
+
+/**
+ * Updates an alerting policy. You can either replace the entire policy with
+ * a new one or replace only certain fields in the current alerting policy by
+ * specifying the fields to be updated via `updateMask`. Returns the
+ * updated alerting policy.
+ *
+ * Design your application to single-thread API calls that modify the state of
+ * alerting policies in a single project. This includes calls to
+ * CreateAlertPolicy, DeleteAlertPolicy and UpdateAlertPolicy.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function update_alert_policy_sample(): void
+{
+    // Create a client.
+    $alertPolicyServiceClient = new AlertPolicyServiceClient();
+
+    // Prepare the request message.
+    $alertPolicy = new AlertPolicy();
+    $request = (new UpdateAlertPolicyRequest())
+        ->setAlertPolicy($alertPolicy);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var AlertPolicy $response */
+        $response = $alertPolicyServiceClient->updateAlertPolicy($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+// [END monitoring_v3_generated_AlertPolicyService_UpdateAlertPolicy_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/GroupServiceClient/create_group.php b/owl-bot-staging/Monitoring/v3/samples/V3/GroupServiceClient/create_group.php
new file mode 100644
index 000000000000..5662f185f72e
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/GroupServiceClient/create_group.php
@@ -0,0 +1,76 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_GroupService_CreateGroup_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\GroupServiceClient;
+use Google\Cloud\Monitoring\V3\CreateGroupRequest;
+use Google\Cloud\Monitoring\V3\Group;
+
+/**
+ * Creates a new group.
+ *
+ * @param string $name The
+ *                     [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+ *                     to create the group. The format is:
+ *
+ *                     projects/[PROJECT_ID_OR_NUMBER]
+ */
+function create_group_sample(string $name): void
+{
+    // Create a client.
+    $groupServiceClient = new GroupServiceClient();
+
+    // Prepare the request message.
+    $group = new Group();
+    $request = (new CreateGroupRequest())
+        ->setName($name)
+        ->setGroup($group);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var Group $response */
+        $response = $groupServiceClient->createGroup($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $name = '[NAME]';
+
+    create_group_sample($name);
+}
+// [END monitoring_v3_generated_GroupService_CreateGroup_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/GroupServiceClient/delete_group.php b/owl-bot-staging/Monitoring/v3/samples/V3/GroupServiceClient/delete_group.php
new file mode 100644
index 000000000000..2b0b5d393b35
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/GroupServiceClient/delete_group.php
@@ -0,0 +1,71 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_GroupService_DeleteGroup_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\GroupServiceClient;
+use Google\Cloud\Monitoring\V3\DeleteGroupRequest;
+
+/**
+ * Deletes an existing group.
+ *
+ * @param string $formattedName The group to delete. The format is:
+ *
+ *                              projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+ *                              Please see {@see GroupServiceClient::groupName()} for help formatting this field.
+ */
+function delete_group_sample(string $formattedName): void
+{
+    // Create a client.
+    $groupServiceClient = new GroupServiceClient();
+
+    // Prepare the request message.
+    $request = (new DeleteGroupRequest())
+        ->setName($formattedName);
+
+    // Call the API and handle any network failures.
+    try {
+        $groupServiceClient->deleteGroup($request);
+        printf('Call completed successfully.' . PHP_EOL);
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedName = GroupServiceClient::groupName('[PROJECT]', '[GROUP]');
+
+    delete_group_sample($formattedName);
+}
+// [END monitoring_v3_generated_GroupService_DeleteGroup_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/GroupServiceClient/get_group.php b/owl-bot-staging/Monitoring/v3/samples/V3/GroupServiceClient/get_group.php
new file mode 100644
index 000000000000..59d00116484a
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/GroupServiceClient/get_group.php
@@ -0,0 +1,73 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_GroupService_GetGroup_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\GroupServiceClient;
+use Google\Cloud\Monitoring\V3\GetGroupRequest;
+use Google\Cloud\Monitoring\V3\Group;
+
+/**
+ * Gets a single group.
+ *
+ * @param string $formattedName The group to retrieve. The format is:
+ *
+ *                              projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+ *                              Please see {@see GroupServiceClient::groupName()} for help formatting this field.
+ */
+function get_group_sample(string $formattedName): void
+{
+    // Create a client.
+    $groupServiceClient = new GroupServiceClient();
+
+    // Prepare the request message.
+    $request = (new GetGroupRequest())
+        ->setName($formattedName);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var Group $response */
+        $response = $groupServiceClient->getGroup($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedName = GroupServiceClient::groupName('[PROJECT]', '[GROUP]');
+
+    get_group_sample($formattedName);
+}
+// [END monitoring_v3_generated_GroupService_GetGroup_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/GroupServiceClient/list_group_members.php b/owl-bot-staging/Monitoring/v3/samples/V3/GroupServiceClient/list_group_members.php
new file mode 100644
index 000000000000..810ef1fb51ce
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/GroupServiceClient/list_group_members.php
@@ -0,0 +1,78 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_GroupService_ListGroupMembers_sync]
+use Google\ApiCore\ApiException;
+use Google\ApiCore\PagedListResponse;
+use Google\Api\MonitoredResource;
+use Google\Cloud\Monitoring\V3\Client\GroupServiceClient;
+use Google\Cloud\Monitoring\V3\ListGroupMembersRequest;
+
+/**
+ * Lists the monitored resources that are members of a group.
+ *
+ * @param string $formattedName The group whose members are listed. The format is:
+ *
+ *                              projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+ *                              Please see {@see GroupServiceClient::groupName()} for help formatting this field.
+ */
+function list_group_members_sample(string $formattedName): void
+{
+    // Create a client.
+    $groupServiceClient = new GroupServiceClient();
+
+    // Prepare the request message.
+    $request = (new ListGroupMembersRequest())
+        ->setName($formattedName);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var PagedListResponse $response */
+        $response = $groupServiceClient->listGroupMembers($request);
+
+        /** @var MonitoredResource $element */
+        foreach ($response as $element) {
+            printf('Element data: %s' . PHP_EOL, $element->serializeToJsonString());
+        }
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedName = GroupServiceClient::groupName('[PROJECT]', '[GROUP]');
+
+    list_group_members_sample($formattedName);
+}
+// [END monitoring_v3_generated_GroupService_ListGroupMembers_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/GroupServiceClient/list_groups.php b/owl-bot-staging/Monitoring/v3/samples/V3/GroupServiceClient/list_groups.php
new file mode 100644
index 000000000000..073f54a6f17e
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/GroupServiceClient/list_groups.php
@@ -0,0 +1,79 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_GroupService_ListGroups_sync]
+use Google\ApiCore\ApiException;
+use Google\ApiCore\PagedListResponse;
+use Google\Cloud\Monitoring\V3\Client\GroupServiceClient;
+use Google\Cloud\Monitoring\V3\Group;
+use Google\Cloud\Monitoring\V3\ListGroupsRequest;
+
+/**
+ * Lists the existing groups.
+ *
+ * @param string $name The
+ *                     [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+ *                     groups are to be listed. The format is:
+ *
+ *                     projects/[PROJECT_ID_OR_NUMBER]
+ */
+function list_groups_sample(string $name): void
+{
+    // Create a client.
+    $groupServiceClient = new GroupServiceClient();
+
+    // Prepare the request message.
+    $request = (new ListGroupsRequest())
+        ->setName($name);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var PagedListResponse $response */
+        $response = $groupServiceClient->listGroups($request);
+
+        /** @var Group $element */
+        foreach ($response as $element) {
+            printf('Element data: %s' . PHP_EOL, $element->serializeToJsonString());
+        }
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $name = '[NAME]';
+
+    list_groups_sample($name);
+}
+// [END monitoring_v3_generated_GroupService_ListGroups_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/GroupServiceClient/update_group.php b/owl-bot-staging/Monitoring/v3/samples/V3/GroupServiceClient/update_group.php
new file mode 100644
index 000000000000..58d8ed1e52b3
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/GroupServiceClient/update_group.php
@@ -0,0 +1,60 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_GroupService_UpdateGroup_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\GroupServiceClient;
+use Google\Cloud\Monitoring\V3\Group;
+use Google\Cloud\Monitoring\V3\UpdateGroupRequest;
+
+/**
+ * Updates an existing group.
+ * You can change any group attributes except `name`.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function update_group_sample(): void
+{
+    // Create a client.
+    $groupServiceClient = new GroupServiceClient();
+
+    // Prepare the request message.
+    $group = new Group();
+    $request = (new UpdateGroupRequest())
+        ->setGroup($group);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var Group $response */
+        $response = $groupServiceClient->updateGroup($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+// [END monitoring_v3_generated_GroupService_UpdateGroup_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/create_metric_descriptor.php b/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/create_metric_descriptor.php
new file mode 100644
index 000000000000..c54f10ba5a8b
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/create_metric_descriptor.php
@@ -0,0 +1,81 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_MetricService_CreateMetricDescriptor_sync]
+use Google\ApiCore\ApiException;
+use Google\Api\MetricDescriptor;
+use Google\Cloud\Monitoring\V3\Client\MetricServiceClient;
+use Google\Cloud\Monitoring\V3\CreateMetricDescriptorRequest;
+
+/**
+ * Creates a new metric descriptor.
+ * The creation is executed asynchronously.
+ * User-created metric descriptors define
+ * [custom metrics](https://cloud.google.com/monitoring/custom-metrics).
+ * The metric descriptor is updated if it already exists,
+ * except that metric labels are never removed.
+ *
+ * @param string $name The
+ *                     [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+ *                     to execute the request. The format is:
+ *                     4
+ *                     projects/[PROJECT_ID_OR_NUMBER]
+ */
+function create_metric_descriptor_sample(string $name): void
+{
+    // Create a client.
+    $metricServiceClient = new MetricServiceClient();
+
+    // Prepare the request message.
+    $metricDescriptor = new MetricDescriptor();
+    $request = (new CreateMetricDescriptorRequest())
+        ->setName($name)
+        ->setMetricDescriptor($metricDescriptor);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var MetricDescriptor $response */
+        $response = $metricServiceClient->createMetricDescriptor($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $name = '[NAME]';
+
+    create_metric_descriptor_sample($name);
+}
+// [END monitoring_v3_generated_MetricService_CreateMetricDescriptor_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/create_service_time_series.php b/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/create_service_time_series.php
new file mode 100644
index 000000000000..3676da8a884a
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/create_service_time_series.php
@@ -0,0 +1,84 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_MetricService_CreateServiceTimeSeries_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\MetricServiceClient;
+use Google\Cloud\Monitoring\V3\CreateTimeSeriesRequest;
+use Google\Cloud\Monitoring\V3\TimeSeries;
+
+/**
+ * Creates or adds data to one or more service time series. A service time
+ * series is a time series for a metric from a Google Cloud service. The
+ * response is empty if all time series in the request were written. If any
+ * time series could not be written, a corresponding failure message is
+ * included in the error response. This endpoint rejects writes to
+ * user-defined metrics.
+ * This method is only for use by Google Cloud services. Use
+ * [projects.timeSeries.create][google.monitoring.v3.MetricService.CreateTimeSeries]
+ * instead.
+ *
+ * @param string $formattedName The
+ *                              [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+ *                              to execute the request. The format is:
+ *
+ *                              projects/[PROJECT_ID_OR_NUMBER]
+ *                              Please see {@see MetricServiceClient::projectName()} for help formatting this field.
+ */
+function create_service_time_series_sample(string $formattedName): void
+{
+    // Create a client.
+    $metricServiceClient = new MetricServiceClient();
+
+    // Prepare the request message.
+    $timeSeries = [new TimeSeries()];
+    $request = (new CreateTimeSeriesRequest())
+        ->setName($formattedName)
+        ->setTimeSeries($timeSeries);
+
+    // Call the API and handle any network failures.
+    try {
+        $metricServiceClient->createServiceTimeSeries($request);
+        printf('Call completed successfully.' . PHP_EOL);
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedName = MetricServiceClient::projectName('[PROJECT]');
+
+    create_service_time_series_sample($formattedName);
+}
+// [END monitoring_v3_generated_MetricService_CreateServiceTimeSeries_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/create_time_series.php b/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/create_time_series.php
new file mode 100644
index 000000000000..943e3d74156e
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/create_time_series.php
@@ -0,0 +1,82 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_MetricService_CreateTimeSeries_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\MetricServiceClient;
+use Google\Cloud\Monitoring\V3\CreateTimeSeriesRequest;
+use Google\Cloud\Monitoring\V3\TimeSeries;
+
+/**
+ * Creates or adds data to one or more time series.
+ * The response is empty if all time series in the request were written.
+ * If any time series could not be written, a corresponding failure message is
+ * included in the error response.
+ * This method does not support
+ * [resource locations constraint of an organization
+ * policy](https://cloud.google.com/resource-manager/docs/organization-policy/defining-locations#setting_the_organization_policy).
+ *
+ * @param string $formattedName The
+ *                              [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+ *                              to execute the request. The format is:
+ *
+ *                              projects/[PROJECT_ID_OR_NUMBER]
+ *                              Please see {@see MetricServiceClient::projectName()} for help formatting this field.
+ */
+function create_time_series_sample(string $formattedName): void
+{
+    // Create a client.
+    $metricServiceClient = new MetricServiceClient();
+
+    // Prepare the request message.
+    $timeSeries = [new TimeSeries()];
+    $request = (new CreateTimeSeriesRequest())
+        ->setName($formattedName)
+        ->setTimeSeries($timeSeries);
+
+    // Call the API and handle any network failures.
+    try {
+        $metricServiceClient->createTimeSeries($request);
+        printf('Call completed successfully.' . PHP_EOL);
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedName = MetricServiceClient::projectName('[PROJECT]');
+
+    create_time_series_sample($formattedName);
+}
+// [END monitoring_v3_generated_MetricService_CreateTimeSeries_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/delete_metric_descriptor.php b/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/delete_metric_descriptor.php
new file mode 100644
index 000000000000..5be71ec658ad
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/delete_metric_descriptor.php
@@ -0,0 +1,77 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_MetricService_DeleteMetricDescriptor_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\MetricServiceClient;
+use Google\Cloud\Monitoring\V3\DeleteMetricDescriptorRequest;
+
+/**
+ * Deletes a metric descriptor. Only user-created
+ * [custom metrics](https://cloud.google.com/monitoring/custom-metrics) can be
+ * deleted.
+ *
+ * @param string $formattedName The metric descriptor on which to execute the request. The format
+ *                              is:
+ *
+ *                              projects/[PROJECT_ID_OR_NUMBER]/metricDescriptors/[METRIC_ID]
+ *
+ *                              An example of `[METRIC_ID]` is:
+ *                              `"custom.googleapis.com/my_test_metric"`. Please see
+ *                              {@see MetricServiceClient::metricDescriptorName()} for help formatting this field.
+ */
+function delete_metric_descriptor_sample(string $formattedName): void
+{
+    // Create a client.
+    $metricServiceClient = new MetricServiceClient();
+
+    // Prepare the request message.
+    $request = (new DeleteMetricDescriptorRequest())
+        ->setName($formattedName);
+
+    // Call the API and handle any network failures.
+    try {
+        $metricServiceClient->deleteMetricDescriptor($request);
+        printf('Call completed successfully.' . PHP_EOL);
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedName = MetricServiceClient::metricDescriptorName('[PROJECT]', '[METRIC_DESCRIPTOR]');
+
+    delete_metric_descriptor_sample($formattedName);
+}
+// [END monitoring_v3_generated_MetricService_DeleteMetricDescriptor_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/get_metric_descriptor.php b/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/get_metric_descriptor.php
new file mode 100644
index 000000000000..f1733d7ebcf3
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/get_metric_descriptor.php
@@ -0,0 +1,77 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_MetricService_GetMetricDescriptor_sync]
+use Google\ApiCore\ApiException;
+use Google\Api\MetricDescriptor;
+use Google\Cloud\Monitoring\V3\Client\MetricServiceClient;
+use Google\Cloud\Monitoring\V3\GetMetricDescriptorRequest;
+
+/**
+ * Gets a single metric descriptor.
+ *
+ * @param string $formattedName The metric descriptor on which to execute the request. The format
+ *                              is:
+ *
+ *                              projects/[PROJECT_ID_OR_NUMBER]/metricDescriptors/[METRIC_ID]
+ *
+ *                              An example value of `[METRIC_ID]` is
+ *                              `"compute.googleapis.com/instance/disk/read_bytes_count"`. Please see
+ *                              {@see MetricServiceClient::metricDescriptorName()} for help formatting this field.
+ */
+function get_metric_descriptor_sample(string $formattedName): void
+{
+    // Create a client.
+    $metricServiceClient = new MetricServiceClient();
+
+    // Prepare the request message.
+    $request = (new GetMetricDescriptorRequest())
+        ->setName($formattedName);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var MetricDescriptor $response */
+        $response = $metricServiceClient->getMetricDescriptor($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedName = MetricServiceClient::metricDescriptorName('[PROJECT]', '[METRIC_DESCRIPTOR]');
+
+    get_metric_descriptor_sample($formattedName);
+}
+// [END monitoring_v3_generated_MetricService_GetMetricDescriptor_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/get_monitored_resource_descriptor.php b/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/get_monitored_resource_descriptor.php
new file mode 100644
index 000000000000..b80928f31d40
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/get_monitored_resource_descriptor.php
@@ -0,0 +1,79 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_MetricService_GetMonitoredResourceDescriptor_sync]
+use Google\ApiCore\ApiException;
+use Google\Api\MonitoredResourceDescriptor;
+use Google\Cloud\Monitoring\V3\Client\MetricServiceClient;
+use Google\Cloud\Monitoring\V3\GetMonitoredResourceDescriptorRequest;
+
+/**
+ * Gets a single monitored resource descriptor.
+ *
+ * @param string $formattedName The monitored resource descriptor to get.  The format is:
+ *
+ *                              projects/[PROJECT_ID_OR_NUMBER]/monitoredResourceDescriptors/[RESOURCE_TYPE]
+ *
+ *                              The `[RESOURCE_TYPE]` is a predefined type, such as
+ *                              `cloudsql_database`. Please see
+ *                              {@see MetricServiceClient::monitoredResourceDescriptorName()} for help formatting this field.
+ */
+function get_monitored_resource_descriptor_sample(string $formattedName): void
+{
+    // Create a client.
+    $metricServiceClient = new MetricServiceClient();
+
+    // Prepare the request message.
+    $request = (new GetMonitoredResourceDescriptorRequest())
+        ->setName($formattedName);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var MonitoredResourceDescriptor $response */
+        $response = $metricServiceClient->getMonitoredResourceDescriptor($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedName = MetricServiceClient::monitoredResourceDescriptorName(
+        '[PROJECT]',
+        '[MONITORED_RESOURCE_DESCRIPTOR]'
+    );
+
+    get_monitored_resource_descriptor_sample($formattedName);
+}
+// [END monitoring_v3_generated_MetricService_GetMonitoredResourceDescriptor_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/list_metric_descriptors.php b/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/list_metric_descriptors.php
new file mode 100644
index 000000000000..2a60d376cdf4
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/list_metric_descriptors.php
@@ -0,0 +1,79 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_MetricService_ListMetricDescriptors_sync]
+use Google\ApiCore\ApiException;
+use Google\ApiCore\PagedListResponse;
+use Google\Api\MetricDescriptor;
+use Google\Cloud\Monitoring\V3\Client\MetricServiceClient;
+use Google\Cloud\Monitoring\V3\ListMetricDescriptorsRequest;
+
+/**
+ * Lists metric descriptors that match a filter.
+ *
+ * @param string $name The
+ *                     [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+ *                     to execute the request. The format is:
+ *
+ *                     projects/[PROJECT_ID_OR_NUMBER]
+ */
+function list_metric_descriptors_sample(string $name): void
+{
+    // Create a client.
+    $metricServiceClient = new MetricServiceClient();
+
+    // Prepare the request message.
+    $request = (new ListMetricDescriptorsRequest())
+        ->setName($name);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var PagedListResponse $response */
+        $response = $metricServiceClient->listMetricDescriptors($request);
+
+        /** @var MetricDescriptor $element */
+        foreach ($response as $element) {
+            printf('Element data: %s' . PHP_EOL, $element->serializeToJsonString());
+        }
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $name = '[NAME]';
+
+    list_metric_descriptors_sample($name);
+}
+// [END monitoring_v3_generated_MetricService_ListMetricDescriptors_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/list_monitored_resource_descriptors.php b/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/list_monitored_resource_descriptors.php
new file mode 100644
index 000000000000..8594af87cfce
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/list_monitored_resource_descriptors.php
@@ -0,0 +1,79 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_MetricService_ListMonitoredResourceDescriptors_sync]
+use Google\ApiCore\ApiException;
+use Google\ApiCore\PagedListResponse;
+use Google\Api\MonitoredResourceDescriptor;
+use Google\Cloud\Monitoring\V3\Client\MetricServiceClient;
+use Google\Cloud\Monitoring\V3\ListMonitoredResourceDescriptorsRequest;
+
+/**
+ * Lists monitored resource descriptors that match a filter.
+ *
+ * @param string $name The
+ *                     [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+ *                     to execute the request. The format is:
+ *
+ *                     projects/[PROJECT_ID_OR_NUMBER]
+ */
+function list_monitored_resource_descriptors_sample(string $name): void
+{
+    // Create a client.
+    $metricServiceClient = new MetricServiceClient();
+
+    // Prepare the request message.
+    $request = (new ListMonitoredResourceDescriptorsRequest())
+        ->setName($name);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var PagedListResponse $response */
+        $response = $metricServiceClient->listMonitoredResourceDescriptors($request);
+
+        /** @var MonitoredResourceDescriptor $element */
+        foreach ($response as $element) {
+            printf('Element data: %s' . PHP_EOL, $element->serializeToJsonString());
+        }
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $name = '[NAME]';
+
+    list_monitored_resource_descriptors_sample($name);
+}
+// [END monitoring_v3_generated_MetricService_ListMonitoredResourceDescriptors_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/list_time_series.php b/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/list_time_series.php
new file mode 100644
index 000000000000..2d408169cc27
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/MetricServiceClient/list_time_series.php
@@ -0,0 +1,99 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_MetricService_ListTimeSeries_sync]
+use Google\ApiCore\ApiException;
+use Google\ApiCore\PagedListResponse;
+use Google\Cloud\Monitoring\V3\Client\MetricServiceClient;
+use Google\Cloud\Monitoring\V3\ListTimeSeriesRequest;
+use Google\Cloud\Monitoring\V3\ListTimeSeriesRequest\TimeSeriesView;
+use Google\Cloud\Monitoring\V3\TimeInterval;
+use Google\Cloud\Monitoring\V3\TimeSeries;
+
+/**
+ * Lists time series that match a filter.
+ *
+ * @param string $formattedName The
+ *                              [project](https://cloud.google.com/monitoring/api/v3#project_name),
+ *                              organization or folder on which to execute the request. The format is:
+ *
+ *                              projects/[PROJECT_ID_OR_NUMBER]
+ *                              organizations/[ORGANIZATION_ID]
+ *                              folders/[FOLDER_ID]
+ *                              Please see {@see MetricServiceClient::workspaceName()} for help formatting this field.
+ * @param string $filter        A [monitoring
+ *                              filter](https://cloud.google.com/monitoring/api/v3/filters) that specifies
+ *                              which time series should be returned.  The filter must specify a single
+ *                              metric type, and can additionally specify metric labels and other
+ *                              information. For example:
+ *
+ *                              metric.type = "compute.googleapis.com/instance/cpu/usage_time" AND
+ *                              metric.labels.instance_name = "my-instance-name"
+ * @param int    $view          Specifies which information is returned about the time series.
+ */
+function list_time_series_sample(string $formattedName, string $filter, int $view): void
+{
+    // Create a client.
+    $metricServiceClient = new MetricServiceClient();
+
+    // Prepare the request message.
+    $interval = new TimeInterval();
+    $request = (new ListTimeSeriesRequest())
+        ->setName($formattedName)
+        ->setFilter($filter)
+        ->setInterval($interval)
+        ->setView($view);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var PagedListResponse $response */
+        $response = $metricServiceClient->listTimeSeries($request);
+
+        /** @var TimeSeries $element */
+        foreach ($response as $element) {
+            printf('Element data: %s' . PHP_EOL, $element->serializeToJsonString());
+        }
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedName = MetricServiceClient::workspaceName('[PROJECT]');
+    $filter = '[FILTER]';
+    $view = TimeSeriesView::FULL;
+
+    list_time_series_sample($formattedName, $filter, $view);
+}
+// [END monitoring_v3_generated_MetricService_ListTimeSeries_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/create_notification_channel.php b/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/create_notification_channel.php
new file mode 100644
index 000000000000..4e2647ee0231
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/create_notification_channel.php
@@ -0,0 +1,87 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_NotificationChannelService_CreateNotificationChannel_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\NotificationChannelServiceClient;
+use Google\Cloud\Monitoring\V3\CreateNotificationChannelRequest;
+use Google\Cloud\Monitoring\V3\NotificationChannel;
+
+/**
+ * Creates a new notification channel, representing a single notification
+ * endpoint such as an email address, SMS number, or PagerDuty service.
+ *
+ * Design your application to single-thread API calls that modify the state of
+ * notification channels in a single project. This includes calls to
+ * CreateNotificationChannel, DeleteNotificationChannel and
+ * UpdateNotificationChannel.
+ *
+ * @param string $name The
+ *                     [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+ *                     to execute the request. The format is:
+ *
+ *                     projects/[PROJECT_ID_OR_NUMBER]
+ *
+ *                     This names the container into which the channel will be
+ *                     written, this does not name the newly created channel. The resulting
+ *                     channel's name will have a normalized version of this field as a prefix,
+ *                     but will add `/notificationChannels/[CHANNEL_ID]` to identify the channel.
+ */
+function create_notification_channel_sample(string $name): void
+{
+    // Create a client.
+    $notificationChannelServiceClient = new NotificationChannelServiceClient();
+
+    // Prepare the request message.
+    $notificationChannel = new NotificationChannel();
+    $request = (new CreateNotificationChannelRequest())
+        ->setName($name)
+        ->setNotificationChannel($notificationChannel);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var NotificationChannel $response */
+        $response = $notificationChannelServiceClient->createNotificationChannel($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $name = '[NAME]';
+
+    create_notification_channel_sample($name);
+}
+// [END monitoring_v3_generated_NotificationChannelService_CreateNotificationChannel_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/delete_notification_channel.php b/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/delete_notification_channel.php
new file mode 100644
index 000000000000..1af1aacc41e0
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/delete_notification_channel.php
@@ -0,0 +1,79 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_NotificationChannelService_DeleteNotificationChannel_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\NotificationChannelServiceClient;
+use Google\Cloud\Monitoring\V3\DeleteNotificationChannelRequest;
+
+/**
+ * Deletes a notification channel.
+ *
+ * Design your application to single-thread API calls that modify the state of
+ * notification channels in a single project. This includes calls to
+ * CreateNotificationChannel, DeleteNotificationChannel and
+ * UpdateNotificationChannel.
+ *
+ * @param string $formattedName The channel for which to execute the request. The format is:
+ *
+ *                              projects/[PROJECT_ID_OR_NUMBER]/notificationChannels/[CHANNEL_ID]
+ *                              Please see {@see NotificationChannelServiceClient::notificationChannelName()} for help formatting this field.
+ */
+function delete_notification_channel_sample(string $formattedName): void
+{
+    // Create a client.
+    $notificationChannelServiceClient = new NotificationChannelServiceClient();
+
+    // Prepare the request message.
+    $request = (new DeleteNotificationChannelRequest())
+        ->setName($formattedName);
+
+    // Call the API and handle any network failures.
+    try {
+        $notificationChannelServiceClient->deleteNotificationChannel($request);
+        printf('Call completed successfully.' . PHP_EOL);
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedName = NotificationChannelServiceClient::notificationChannelName(
+        '[PROJECT]',
+        '[NOTIFICATION_CHANNEL]'
+    );
+
+    delete_notification_channel_sample($formattedName);
+}
+// [END monitoring_v3_generated_NotificationChannelService_DeleteNotificationChannel_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/get_notification_channel.php b/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/get_notification_channel.php
new file mode 100644
index 000000000000..a1efeebeec4a
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/get_notification_channel.php
@@ -0,0 +1,80 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_NotificationChannelService_GetNotificationChannel_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\NotificationChannelServiceClient;
+use Google\Cloud\Monitoring\V3\GetNotificationChannelRequest;
+use Google\Cloud\Monitoring\V3\NotificationChannel;
+
+/**
+ * Gets a single notification channel. The channel includes the relevant
+ * configuration details with which the channel was created. However, the
+ * response may truncate or omit passwords, API keys, or other private key
+ * matter and thus the response may not be 100% identical to the information
+ * that was supplied in the call to the create method.
+ *
+ * @param string $formattedName The channel for which to execute the request. The format is:
+ *
+ *                              projects/[PROJECT_ID_OR_NUMBER]/notificationChannels/[CHANNEL_ID]
+ *                              Please see {@see NotificationChannelServiceClient::notificationChannelName()} for help formatting this field.
+ */
+function get_notification_channel_sample(string $formattedName): void
+{
+    // Create a client.
+    $notificationChannelServiceClient = new NotificationChannelServiceClient();
+
+    // Prepare the request message.
+    $request = (new GetNotificationChannelRequest())
+        ->setName($formattedName);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var NotificationChannel $response */
+        $response = $notificationChannelServiceClient->getNotificationChannel($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedName = NotificationChannelServiceClient::notificationChannelName(
+        '[PROJECT]',
+        '[NOTIFICATION_CHANNEL]'
+    );
+
+    get_notification_channel_sample($formattedName);
+}
+// [END monitoring_v3_generated_NotificationChannelService_GetNotificationChannel_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/get_notification_channel_descriptor.php b/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/get_notification_channel_descriptor.php
new file mode 100644
index 000000000000..3f4bc0a77317
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/get_notification_channel_descriptor.php
@@ -0,0 +1,77 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_NotificationChannelService_GetNotificationChannelDescriptor_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\NotificationChannelServiceClient;
+use Google\Cloud\Monitoring\V3\GetNotificationChannelDescriptorRequest;
+use Google\Cloud\Monitoring\V3\NotificationChannelDescriptor;
+
+/**
+ * Gets a single channel descriptor. The descriptor indicates which fields
+ * are expected / permitted for a notification channel of the given type.
+ *
+ * @param string $formattedName The channel type for which to execute the request. The format is:
+ *
+ *                              projects/[PROJECT_ID_OR_NUMBER]/notificationChannelDescriptors/[CHANNEL_TYPE]
+ *                              Please see {@see NotificationChannelServiceClient::notificationChannelDescriptorName()} for help formatting this field.
+ */
+function get_notification_channel_descriptor_sample(string $formattedName): void
+{
+    // Create a client.
+    $notificationChannelServiceClient = new NotificationChannelServiceClient();
+
+    // Prepare the request message.
+    $request = (new GetNotificationChannelDescriptorRequest())
+        ->setName($formattedName);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var NotificationChannelDescriptor $response */
+        $response = $notificationChannelServiceClient->getNotificationChannelDescriptor($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedName = NotificationChannelServiceClient::notificationChannelDescriptorName(
+        '[PROJECT]',
+        '[CHANNEL_DESCRIPTOR]'
+    );
+
+    get_notification_channel_descriptor_sample($formattedName);
+}
+// [END monitoring_v3_generated_NotificationChannelService_GetNotificationChannelDescriptor_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/get_notification_channel_verification_code.php b/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/get_notification_channel_verification_code.php
new file mode 100644
index 000000000000..a63472001e29
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/get_notification_channel_verification_code.php
@@ -0,0 +1,96 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_NotificationChannelService_GetNotificationChannelVerificationCode_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\NotificationChannelServiceClient;
+use Google\Cloud\Monitoring\V3\GetNotificationChannelVerificationCodeRequest;
+use Google\Cloud\Monitoring\V3\GetNotificationChannelVerificationCodeResponse;
+
+/**
+ * Requests a verification code for an already verified channel that can then
+ * be used in a call to VerifyNotificationChannel() on a different channel
+ * with an equivalent identity in the same or in a different project. This
+ * makes it possible to copy a channel between projects without requiring
+ * manual reverification of the channel. If the channel is not in the
+ * verified state, this method will fail (in other words, this may only be
+ * used if the SendNotificationChannelVerificationCode and
+ * VerifyNotificationChannel paths have already been used to put the given
+ * channel into the verified state).
+ *
+ * There is no guarantee that the verification codes returned by this method
+ * will be of a similar structure or form as the ones that are delivered
+ * to the channel via SendNotificationChannelVerificationCode; while
+ * VerifyNotificationChannel() will recognize both the codes delivered via
+ * SendNotificationChannelVerificationCode() and returned from
+ * GetNotificationChannelVerificationCode(), it is typically the case that
+ * the verification codes delivered via
+ * SendNotificationChannelVerificationCode() will be shorter and also
+ * have a shorter expiration (e.g. codes such as "G-123456") whereas
+ * GetVerificationCode() will typically return a much longer, websafe base
+ * 64 encoded string that has a longer expiration time.
+ *
+ * @param string $formattedName The notification channel for which a verification code is to be
+ *                              generated and retrieved. This must name a channel that is already verified;
+ *                              if the specified channel is not verified, the request will fail. Please see
+ *                              {@see NotificationChannelServiceClient::notificationChannelName()} for help formatting this field.
+ */
+function get_notification_channel_verification_code_sample(string $formattedName): void
+{
+    // Create a client.
+    $notificationChannelServiceClient = new NotificationChannelServiceClient();
+
+    // Prepare the request message.
+    $request = (new GetNotificationChannelVerificationCodeRequest())
+        ->setName($formattedName);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var GetNotificationChannelVerificationCodeResponse $response */
+        $response = $notificationChannelServiceClient->getNotificationChannelVerificationCode($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedName = NotificationChannelServiceClient::notificationChannelName(
+        '[PROJECT]',
+        '[NOTIFICATION_CHANNEL]'
+    );
+
+    get_notification_channel_verification_code_sample($formattedName);
+}
+// [END monitoring_v3_generated_NotificationChannelService_GetNotificationChannelVerificationCode_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/list_notification_channel_descriptors.php b/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/list_notification_channel_descriptors.php
new file mode 100644
index 000000000000..0382fad734f1
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/list_notification_channel_descriptors.php
@@ -0,0 +1,86 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_NotificationChannelService_ListNotificationChannelDescriptors_sync]
+use Google\ApiCore\ApiException;
+use Google\ApiCore\PagedListResponse;
+use Google\Cloud\Monitoring\V3\Client\NotificationChannelServiceClient;
+use Google\Cloud\Monitoring\V3\ListNotificationChannelDescriptorsRequest;
+use Google\Cloud\Monitoring\V3\NotificationChannelDescriptor;
+
+/**
+ * Lists the descriptors for supported channel types. The use of descriptors
+ * makes it possible for new channel types to be dynamically added.
+ *
+ * @param string $name The REST resource name of the parent from which to retrieve
+ *                     the notification channel descriptors. The expected syntax is:
+ *
+ *                     projects/[PROJECT_ID_OR_NUMBER]
+ *
+ *                     Note that this
+ *                     [names](https://cloud.google.com/monitoring/api/v3#project_name) the parent
+ *                     container in which to look for the descriptors; to retrieve a single
+ *                     descriptor by name, use the
+ *                     [GetNotificationChannelDescriptor][google.monitoring.v3.NotificationChannelService.GetNotificationChannelDescriptor]
+ *                     operation, instead.
+ */
+function list_notification_channel_descriptors_sample(string $name): void
+{
+    // Create a client.
+    $notificationChannelServiceClient = new NotificationChannelServiceClient();
+
+    // Prepare the request message.
+    $request = (new ListNotificationChannelDescriptorsRequest())
+        ->setName($name);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var PagedListResponse $response */
+        $response = $notificationChannelServiceClient->listNotificationChannelDescriptors($request);
+
+        /** @var NotificationChannelDescriptor $element */
+        foreach ($response as $element) {
+            printf('Element data: %s' . PHP_EOL, $element->serializeToJsonString());
+        }
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $name = '[NAME]';
+
+    list_notification_channel_descriptors_sample($name);
+}
+// [END monitoring_v3_generated_NotificationChannelService_ListNotificationChannelDescriptors_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/list_notification_channels.php b/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/list_notification_channels.php
new file mode 100644
index 000000000000..4a236f89c3ab
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/list_notification_channels.php
@@ -0,0 +1,88 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_NotificationChannelService_ListNotificationChannels_sync]
+use Google\ApiCore\ApiException;
+use Google\ApiCore\PagedListResponse;
+use Google\Cloud\Monitoring\V3\Client\NotificationChannelServiceClient;
+use Google\Cloud\Monitoring\V3\ListNotificationChannelsRequest;
+use Google\Cloud\Monitoring\V3\NotificationChannel;
+
+/**
+ * Lists the notification channels that have been created for the project.
+ * To list the types of notification channels that are supported, use
+ * the `ListNotificationChannelDescriptors` method.
+ *
+ * @param string $name The
+ *                     [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+ *                     to execute the request. The format is:
+ *
+ *                     projects/[PROJECT_ID_OR_NUMBER]
+ *
+ *                     This names the container
+ *                     in which to look for the notification channels; it does not name a
+ *                     specific channel. To query a specific channel by REST resource name, use
+ *                     the
+ *                     [`GetNotificationChannel`][google.monitoring.v3.NotificationChannelService.GetNotificationChannel]
+ *                     operation.
+ */
+function list_notification_channels_sample(string $name): void
+{
+    // Create a client.
+    $notificationChannelServiceClient = new NotificationChannelServiceClient();
+
+    // Prepare the request message.
+    $request = (new ListNotificationChannelsRequest())
+        ->setName($name);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var PagedListResponse $response */
+        $response = $notificationChannelServiceClient->listNotificationChannels($request);
+
+        /** @var NotificationChannel $element */
+        foreach ($response as $element) {
+            printf('Element data: %s' . PHP_EOL, $element->serializeToJsonString());
+        }
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $name = '[NAME]';
+
+    list_notification_channels_sample($name);
+}
+// [END monitoring_v3_generated_NotificationChannelService_ListNotificationChannels_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/send_notification_channel_verification_code.php b/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/send_notification_channel_verification_code.php
new file mode 100644
index 000000000000..b8810b7a3018
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/send_notification_channel_verification_code.php
@@ -0,0 +1,73 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_NotificationChannelService_SendNotificationChannelVerificationCode_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\NotificationChannelServiceClient;
+use Google\Cloud\Monitoring\V3\SendNotificationChannelVerificationCodeRequest;
+
+/**
+ * Causes a verification code to be delivered to the channel. The code
+ * can then be supplied in `VerifyNotificationChannel` to verify the channel.
+ *
+ * @param string $formattedName The notification channel to which to send a verification code. Please see
+ *                              {@see NotificationChannelServiceClient::notificationChannelName()} for help formatting this field.
+ */
+function send_notification_channel_verification_code_sample(string $formattedName): void
+{
+    // Create a client.
+    $notificationChannelServiceClient = new NotificationChannelServiceClient();
+
+    // Prepare the request message.
+    $request = (new SendNotificationChannelVerificationCodeRequest())
+        ->setName($formattedName);
+
+    // Call the API and handle any network failures.
+    try {
+        $notificationChannelServiceClient->sendNotificationChannelVerificationCode($request);
+        printf('Call completed successfully.' . PHP_EOL);
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedName = NotificationChannelServiceClient::notificationChannelName(
+        '[PROJECT]',
+        '[NOTIFICATION_CHANNEL]'
+    );
+
+    send_notification_channel_verification_code_sample($formattedName);
+}
+// [END monitoring_v3_generated_NotificationChannelService_SendNotificationChannelVerificationCode_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/update_notification_channel.php b/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/update_notification_channel.php
new file mode 100644
index 000000000000..ad79286eff6b
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/update_notification_channel.php
@@ -0,0 +1,65 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_NotificationChannelService_UpdateNotificationChannel_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\NotificationChannelServiceClient;
+use Google\Cloud\Monitoring\V3\NotificationChannel;
+use Google\Cloud\Monitoring\V3\UpdateNotificationChannelRequest;
+
+/**
+ * Updates a notification channel. Fields not specified in the field mask
+ * remain unchanged.
+ *
+ * Design your application to single-thread API calls that modify the state of
+ * notification channels in a single project. This includes calls to
+ * CreateNotificationChannel, DeleteNotificationChannel and
+ * UpdateNotificationChannel.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function update_notification_channel_sample(): void
+{
+    // Create a client.
+    $notificationChannelServiceClient = new NotificationChannelServiceClient();
+
+    // Prepare the request message.
+    $notificationChannel = new NotificationChannel();
+    $request = (new UpdateNotificationChannelRequest())
+        ->setNotificationChannel($notificationChannel);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var NotificationChannel $response */
+        $response = $notificationChannelServiceClient->updateNotificationChannel($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+// [END monitoring_v3_generated_NotificationChannelService_UpdateNotificationChannel_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/verify_notification_channel.php b/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/verify_notification_channel.php
new file mode 100644
index 000000000000..7603415aff57
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/NotificationChannelServiceClient/verify_notification_channel.php
@@ -0,0 +1,85 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_NotificationChannelService_VerifyNotificationChannel_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\NotificationChannelServiceClient;
+use Google\Cloud\Monitoring\V3\NotificationChannel;
+use Google\Cloud\Monitoring\V3\VerifyNotificationChannelRequest;
+
+/**
+ * Verifies a `NotificationChannel` by proving receipt of the code
+ * delivered to the channel as a result of calling
+ * `SendNotificationChannelVerificationCode`.
+ *
+ * @param string $formattedName The notification channel to verify. Please see
+ *                              {@see NotificationChannelServiceClient::notificationChannelName()} for help formatting this field.
+ * @param string $code          The verification code that was delivered to the channel as
+ *                              a result of invoking the `SendNotificationChannelVerificationCode` API
+ *                              method or that was retrieved from a verified channel via
+ *                              `GetNotificationChannelVerificationCode`. For example, one might have
+ *                              "G-123456" or "TKNZGhhd2EyN3I1MnRnMjRv" (in general, one is only
+ *                              guaranteed that the code is valid UTF-8; one should not
+ *                              make any assumptions regarding the structure or format of the code).
+ */
+function verify_notification_channel_sample(string $formattedName, string $code): void
+{
+    // Create a client.
+    $notificationChannelServiceClient = new NotificationChannelServiceClient();
+
+    // Prepare the request message.
+    $request = (new VerifyNotificationChannelRequest())
+        ->setName($formattedName)
+        ->setCode($code);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var NotificationChannel $response */
+        $response = $notificationChannelServiceClient->verifyNotificationChannel($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedName = NotificationChannelServiceClient::notificationChannelName(
+        '[PROJECT]',
+        '[NOTIFICATION_CHANNEL]'
+    );
+    $code = '[CODE]';
+
+    verify_notification_channel_sample($formattedName, $code);
+}
+// [END monitoring_v3_generated_NotificationChannelService_VerifyNotificationChannel_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/QueryServiceClient/query_time_series.php b/owl-bot-staging/Monitoring/v3/samples/V3/QueryServiceClient/query_time_series.php
new file mode 100644
index 000000000000..bfd4ca0d6e6c
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/QueryServiceClient/query_time_series.php
@@ -0,0 +1,87 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_QueryService_QueryTimeSeries_sync]
+use Google\ApiCore\ApiException;
+use Google\ApiCore\PagedListResponse;
+use Google\Cloud\Monitoring\V3\Client\QueryServiceClient;
+use Google\Cloud\Monitoring\V3\QueryTimeSeriesRequest;
+use Google\Cloud\Monitoring\V3\TimeSeriesData;
+
+/**
+ * Queries time series by using Monitoring Query Language (MQL). We recommend
+ * using PromQL instead of MQL. For more information about the status of MQL,
+ * see the [MQL deprecation
+ * notice](https://cloud.google.com/stackdriver/docs/deprecations/mql).
+ *
+ * @param string $name  The
+ *                      [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+ *                      to execute the request. The format is:
+ *
+ *                      projects/[PROJECT_ID_OR_NUMBER]
+ * @param string $query The query in the [Monitoring Query
+ *                      Language](https://cloud.google.com/monitoring/mql/reference) format.
+ *                      The default time zone is in UTC.
+ */
+function query_time_series_sample(string $name, string $query): void
+{
+    // Create a client.
+    $queryServiceClient = new QueryServiceClient();
+
+    // Prepare the request message.
+    $request = (new QueryTimeSeriesRequest())
+        ->setName($name)
+        ->setQuery($query);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var PagedListResponse $response */
+        $response = $queryServiceClient->queryTimeSeries($request);
+
+        /** @var TimeSeriesData $element */
+        foreach ($response as $element) {
+            printf('Element data: %s' . PHP_EOL, $element->serializeToJsonString());
+        }
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $name = '[NAME]';
+    $query = '[QUERY]';
+
+    query_time_series_sample($name, $query);
+}
+// [END monitoring_v3_generated_QueryService_QueryTimeSeries_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/create_service.php b/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/create_service.php
new file mode 100644
index 000000000000..f1cd6dae9947
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/create_service.php
@@ -0,0 +1,76 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_ServiceMonitoringService_CreateService_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\ServiceMonitoringServiceClient;
+use Google\Cloud\Monitoring\V3\CreateServiceRequest;
+use Google\Cloud\Monitoring\V3\Service;
+
+/**
+ * Create a `Service`.
+ *
+ * @param string $parent Resource
+ *                       [name](https://cloud.google.com/monitoring/api/v3#project_name) of the
+ *                       parent Metrics Scope. The format is:
+ *
+ *                       projects/[PROJECT_ID_OR_NUMBER]
+ */
+function create_service_sample(string $parent): void
+{
+    // Create a client.
+    $serviceMonitoringServiceClient = new ServiceMonitoringServiceClient();
+
+    // Prepare the request message.
+    $service = new Service();
+    $request = (new CreateServiceRequest())
+        ->setParent($parent)
+        ->setService($service);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var Service $response */
+        $response = $serviceMonitoringServiceClient->createService($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $parent = '[PARENT]';
+
+    create_service_sample($parent);
+}
+// [END monitoring_v3_generated_ServiceMonitoringService_CreateService_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/create_service_level_objective.php b/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/create_service_level_objective.php
new file mode 100644
index 000000000000..2559795e52e7
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/create_service_level_objective.php
@@ -0,0 +1,75 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_ServiceMonitoringService_CreateServiceLevelObjective_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\ServiceMonitoringServiceClient;
+use Google\Cloud\Monitoring\V3\CreateServiceLevelObjectiveRequest;
+use Google\Cloud\Monitoring\V3\ServiceLevelObjective;
+
+/**
+ * Create a `ServiceLevelObjective` for the given `Service`.
+ *
+ * @param string $formattedParent Resource name of the parent `Service`. The format is:
+ *
+ *                                projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+ *                                Please see {@see ServiceMonitoringServiceClient::serviceName()} for help formatting this field.
+ */
+function create_service_level_objective_sample(string $formattedParent): void
+{
+    // Create a client.
+    $serviceMonitoringServiceClient = new ServiceMonitoringServiceClient();
+
+    // Prepare the request message.
+    $serviceLevelObjective = new ServiceLevelObjective();
+    $request = (new CreateServiceLevelObjectiveRequest())
+        ->setParent($formattedParent)
+        ->setServiceLevelObjective($serviceLevelObjective);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var ServiceLevelObjective $response */
+        $response = $serviceMonitoringServiceClient->createServiceLevelObjective($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedParent = ServiceMonitoringServiceClient::serviceName('[PROJECT]', '[SERVICE]');
+
+    create_service_level_objective_sample($formattedParent);
+}
+// [END monitoring_v3_generated_ServiceMonitoringService_CreateServiceLevelObjective_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/delete_service.php b/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/delete_service.php
new file mode 100644
index 000000000000..dd319f9e6108
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/delete_service.php
@@ -0,0 +1,71 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_ServiceMonitoringService_DeleteService_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\ServiceMonitoringServiceClient;
+use Google\Cloud\Monitoring\V3\DeleteServiceRequest;
+
+/**
+ * Soft delete this `Service`.
+ *
+ * @param string $formattedName Resource name of the `Service` to delete. The format is:
+ *
+ *                              projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+ *                              Please see {@see ServiceMonitoringServiceClient::serviceName()} for help formatting this field.
+ */
+function delete_service_sample(string $formattedName): void
+{
+    // Create a client.
+    $serviceMonitoringServiceClient = new ServiceMonitoringServiceClient();
+
+    // Prepare the request message.
+    $request = (new DeleteServiceRequest())
+        ->setName($formattedName);
+
+    // Call the API and handle any network failures.
+    try {
+        $serviceMonitoringServiceClient->deleteService($request);
+        printf('Call completed successfully.' . PHP_EOL);
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedName = ServiceMonitoringServiceClient::serviceName('[PROJECT]', '[SERVICE]');
+
+    delete_service_sample($formattedName);
+}
+// [END monitoring_v3_generated_ServiceMonitoringService_DeleteService_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/delete_service_level_objective.php b/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/delete_service_level_objective.php
new file mode 100644
index 000000000000..ca3c81872464
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/delete_service_level_objective.php
@@ -0,0 +1,76 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_ServiceMonitoringService_DeleteServiceLevelObjective_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\ServiceMonitoringServiceClient;
+use Google\Cloud\Monitoring\V3\DeleteServiceLevelObjectiveRequest;
+
+/**
+ * Delete the given `ServiceLevelObjective`.
+ *
+ * @param string $formattedName Resource name of the `ServiceLevelObjective` to delete. The
+ *                              format is:
+ *
+ *                              projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]/serviceLevelObjectives/[SLO_NAME]
+ *                              Please see {@see ServiceMonitoringServiceClient::serviceLevelObjectiveName()} for help formatting this field.
+ */
+function delete_service_level_objective_sample(string $formattedName): void
+{
+    // Create a client.
+    $serviceMonitoringServiceClient = new ServiceMonitoringServiceClient();
+
+    // Prepare the request message.
+    $request = (new DeleteServiceLevelObjectiveRequest())
+        ->setName($formattedName);
+
+    // Call the API and handle any network failures.
+    try {
+        $serviceMonitoringServiceClient->deleteServiceLevelObjective($request);
+        printf('Call completed successfully.' . PHP_EOL);
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedName = ServiceMonitoringServiceClient::serviceLevelObjectiveName(
+        '[PROJECT]',
+        '[SERVICE]',
+        '[SERVICE_LEVEL_OBJECTIVE]'
+    );
+
+    delete_service_level_objective_sample($formattedName);
+}
+// [END monitoring_v3_generated_ServiceMonitoringService_DeleteServiceLevelObjective_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/get_service.php b/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/get_service.php
new file mode 100644
index 000000000000..cb12b2fcac7f
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/get_service.php
@@ -0,0 +1,73 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_ServiceMonitoringService_GetService_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\ServiceMonitoringServiceClient;
+use Google\Cloud\Monitoring\V3\GetServiceRequest;
+use Google\Cloud\Monitoring\V3\Service;
+
+/**
+ * Get the named `Service`.
+ *
+ * @param string $formattedName Resource name of the `Service`. The format is:
+ *
+ *                              projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+ *                              Please see {@see ServiceMonitoringServiceClient::serviceName()} for help formatting this field.
+ */
+function get_service_sample(string $formattedName): void
+{
+    // Create a client.
+    $serviceMonitoringServiceClient = new ServiceMonitoringServiceClient();
+
+    // Prepare the request message.
+    $request = (new GetServiceRequest())
+        ->setName($formattedName);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var Service $response */
+        $response = $serviceMonitoringServiceClient->getService($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedName = ServiceMonitoringServiceClient::serviceName('[PROJECT]', '[SERVICE]');
+
+    get_service_sample($formattedName);
+}
+// [END monitoring_v3_generated_ServiceMonitoringService_GetService_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/get_service_level_objective.php b/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/get_service_level_objective.php
new file mode 100644
index 000000000000..7bc8c814262f
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/get_service_level_objective.php
@@ -0,0 +1,78 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_ServiceMonitoringService_GetServiceLevelObjective_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\ServiceMonitoringServiceClient;
+use Google\Cloud\Monitoring\V3\GetServiceLevelObjectiveRequest;
+use Google\Cloud\Monitoring\V3\ServiceLevelObjective;
+
+/**
+ * Get a `ServiceLevelObjective` by name.
+ *
+ * @param string $formattedName Resource name of the `ServiceLevelObjective` to get. The format
+ *                              is:
+ *
+ *                              projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]/serviceLevelObjectives/[SLO_NAME]
+ *                              Please see {@see ServiceMonitoringServiceClient::serviceLevelObjectiveName()} for help formatting this field.
+ */
+function get_service_level_objective_sample(string $formattedName): void
+{
+    // Create a client.
+    $serviceMonitoringServiceClient = new ServiceMonitoringServiceClient();
+
+    // Prepare the request message.
+    $request = (new GetServiceLevelObjectiveRequest())
+        ->setName($formattedName);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var ServiceLevelObjective $response */
+        $response = $serviceMonitoringServiceClient->getServiceLevelObjective($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedName = ServiceMonitoringServiceClient::serviceLevelObjectiveName(
+        '[PROJECT]',
+        '[SERVICE]',
+        '[SERVICE_LEVEL_OBJECTIVE]'
+    );
+
+    get_service_level_objective_sample($formattedName);
+}
+// [END monitoring_v3_generated_ServiceMonitoringService_GetServiceLevelObjective_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/list_service_level_objectives.php b/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/list_service_level_objectives.php
new file mode 100644
index 000000000000..4476bfaaafda
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/list_service_level_objectives.php
@@ -0,0 +1,80 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_ServiceMonitoringService_ListServiceLevelObjectives_sync]
+use Google\ApiCore\ApiException;
+use Google\ApiCore\PagedListResponse;
+use Google\Cloud\Monitoring\V3\Client\ServiceMonitoringServiceClient;
+use Google\Cloud\Monitoring\V3\ListServiceLevelObjectivesRequest;
+use Google\Cloud\Monitoring\V3\ServiceLevelObjective;
+
+/**
+ * List the `ServiceLevelObjective`s for the given `Service`.
+ *
+ * @param string $formattedParent Resource name of the parent containing the listed SLOs, either a
+ *                                project or a Monitoring Metrics Scope. The formats are:
+ *
+ *                                projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+ *                                workspaces/[HOST_PROJECT_ID_OR_NUMBER]/services/-
+ *                                Please see {@see ServiceMonitoringServiceClient::serviceName()} for help formatting this field.
+ */
+function list_service_level_objectives_sample(string $formattedParent): void
+{
+    // Create a client.
+    $serviceMonitoringServiceClient = new ServiceMonitoringServiceClient();
+
+    // Prepare the request message.
+    $request = (new ListServiceLevelObjectivesRequest())
+        ->setParent($formattedParent);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var PagedListResponse $response */
+        $response = $serviceMonitoringServiceClient->listServiceLevelObjectives($request);
+
+        /** @var ServiceLevelObjective $element */
+        foreach ($response as $element) {
+            printf('Element data: %s' . PHP_EOL, $element->serializeToJsonString());
+        }
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedParent = ServiceMonitoringServiceClient::serviceName('[PROJECT]', '[SERVICE]');
+
+    list_service_level_objectives_sample($formattedParent);
+}
+// [END monitoring_v3_generated_ServiceMonitoringService_ListServiceLevelObjectives_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/list_services.php b/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/list_services.php
new file mode 100644
index 000000000000..f1495ce77ad6
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/list_services.php
@@ -0,0 +1,80 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_ServiceMonitoringService_ListServices_sync]
+use Google\ApiCore\ApiException;
+use Google\ApiCore\PagedListResponse;
+use Google\Cloud\Monitoring\V3\Client\ServiceMonitoringServiceClient;
+use Google\Cloud\Monitoring\V3\ListServicesRequest;
+use Google\Cloud\Monitoring\V3\Service;
+
+/**
+ * List `Service`s for this Metrics Scope.
+ *
+ * @param string $parent Resource name of the parent containing the listed services,
+ *                       either a [project](https://cloud.google.com/monitoring/api/v3#project_name)
+ *                       or a Monitoring Metrics Scope. The formats are:
+ *
+ *                       projects/[PROJECT_ID_OR_NUMBER]
+ *                       workspaces/[HOST_PROJECT_ID_OR_NUMBER]
+ */
+function list_services_sample(string $parent): void
+{
+    // Create a client.
+    $serviceMonitoringServiceClient = new ServiceMonitoringServiceClient();
+
+    // Prepare the request message.
+    $request = (new ListServicesRequest())
+        ->setParent($parent);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var PagedListResponse $response */
+        $response = $serviceMonitoringServiceClient->listServices($request);
+
+        /** @var Service $element */
+        foreach ($response as $element) {
+            printf('Element data: %s' . PHP_EOL, $element->serializeToJsonString());
+        }
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $parent = '[PARENT]';
+
+    list_services_sample($parent);
+}
+// [END monitoring_v3_generated_ServiceMonitoringService_ListServices_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/update_service.php b/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/update_service.php
new file mode 100644
index 000000000000..1a9fbecdfd95
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/update_service.php
@@ -0,0 +1,59 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_ServiceMonitoringService_UpdateService_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\ServiceMonitoringServiceClient;
+use Google\Cloud\Monitoring\V3\Service;
+use Google\Cloud\Monitoring\V3\UpdateServiceRequest;
+
+/**
+ * Update this `Service`.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function update_service_sample(): void
+{
+    // Create a client.
+    $serviceMonitoringServiceClient = new ServiceMonitoringServiceClient();
+
+    // Prepare the request message.
+    $service = new Service();
+    $request = (new UpdateServiceRequest())
+        ->setService($service);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var Service $response */
+        $response = $serviceMonitoringServiceClient->updateService($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+// [END monitoring_v3_generated_ServiceMonitoringService_UpdateService_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/update_service_level_objective.php b/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/update_service_level_objective.php
new file mode 100644
index 000000000000..30611bd57c1b
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/ServiceMonitoringServiceClient/update_service_level_objective.php
@@ -0,0 +1,59 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_ServiceMonitoringService_UpdateServiceLevelObjective_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\ServiceMonitoringServiceClient;
+use Google\Cloud\Monitoring\V3\ServiceLevelObjective;
+use Google\Cloud\Monitoring\V3\UpdateServiceLevelObjectiveRequest;
+
+/**
+ * Update the given `ServiceLevelObjective`.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function update_service_level_objective_sample(): void
+{
+    // Create a client.
+    $serviceMonitoringServiceClient = new ServiceMonitoringServiceClient();
+
+    // Prepare the request message.
+    $serviceLevelObjective = new ServiceLevelObjective();
+    $request = (new UpdateServiceLevelObjectiveRequest())
+        ->setServiceLevelObjective($serviceLevelObjective);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var ServiceLevelObjective $response */
+        $response = $serviceMonitoringServiceClient->updateServiceLevelObjective($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+// [END monitoring_v3_generated_ServiceMonitoringService_UpdateServiceLevelObjective_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/SnoozeServiceClient/create_snooze.php b/owl-bot-staging/Monitoring/v3/samples/V3/SnoozeServiceClient/create_snooze.php
new file mode 100644
index 000000000000..ee2cdecb18fb
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/SnoozeServiceClient/create_snooze.php
@@ -0,0 +1,89 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_SnoozeService_CreateSnooze_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\SnoozeServiceClient;
+use Google\Cloud\Monitoring\V3\CreateSnoozeRequest;
+use Google\Cloud\Monitoring\V3\Snooze;
+use Google\Cloud\Monitoring\V3\Snooze\Criteria;
+use Google\Cloud\Monitoring\V3\TimeInterval;
+
+/**
+ * Creates a `Snooze` that will prevent alerts, which match the provided
+ * criteria, from being opened. The `Snooze` applies for a specific time
+ * interval.
+ *
+ * @param string $formattedParent   The
+ *                                  [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+ *                                  a `Snooze` should be created. The format is:
+ *
+ *                                  projects/[PROJECT_ID_OR_NUMBER]
+ *                                  Please see {@see SnoozeServiceClient::workspaceName()} for help formatting this field.
+ * @param string $snoozeDisplayName A display name for the `Snooze`. This can be, at most, 512
+ *                                  unicode characters.
+ */
+function create_snooze_sample(string $formattedParent, string $snoozeDisplayName): void
+{
+    // Create a client.
+    $snoozeServiceClient = new SnoozeServiceClient();
+
+    // Prepare the request message.
+    $snoozeCriteria = new Criteria();
+    $snoozeInterval = new TimeInterval();
+    $snooze = (new Snooze())
+        ->setCriteria($snoozeCriteria)
+        ->setInterval($snoozeInterval)
+        ->setDisplayName($snoozeDisplayName);
+    $request = (new CreateSnoozeRequest())
+        ->setParent($formattedParent)
+        ->setSnooze($snooze);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var Snooze $response */
+        $response = $snoozeServiceClient->createSnooze($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedParent = SnoozeServiceClient::workspaceName('[PROJECT]');
+    $snoozeDisplayName = '[DISPLAY_NAME]';
+
+    create_snooze_sample($formattedParent, $snoozeDisplayName);
+}
+// [END monitoring_v3_generated_SnoozeService_CreateSnooze_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/SnoozeServiceClient/get_snooze.php b/owl-bot-staging/Monitoring/v3/samples/V3/SnoozeServiceClient/get_snooze.php
new file mode 100644
index 000000000000..cf467e5c3c3d
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/SnoozeServiceClient/get_snooze.php
@@ -0,0 +1,73 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_SnoozeService_GetSnooze_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\SnoozeServiceClient;
+use Google\Cloud\Monitoring\V3\GetSnoozeRequest;
+use Google\Cloud\Monitoring\V3\Snooze;
+
+/**
+ * Retrieves a `Snooze` by `name`.
+ *
+ * @param string $formattedName The ID of the `Snooze` to retrieve. The format is:
+ *
+ *                              projects/[PROJECT_ID_OR_NUMBER]/snoozes/[SNOOZE_ID]
+ *                              Please see {@see SnoozeServiceClient::snoozeName()} for help formatting this field.
+ */
+function get_snooze_sample(string $formattedName): void
+{
+    // Create a client.
+    $snoozeServiceClient = new SnoozeServiceClient();
+
+    // Prepare the request message.
+    $request = (new GetSnoozeRequest())
+        ->setName($formattedName);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var Snooze $response */
+        $response = $snoozeServiceClient->getSnooze($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedName = SnoozeServiceClient::snoozeName('[PROJECT]', '[SNOOZE]');
+
+    get_snooze_sample($formattedName);
+}
+// [END monitoring_v3_generated_SnoozeService_GetSnooze_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/SnoozeServiceClient/list_snoozes.php b/owl-bot-staging/Monitoring/v3/samples/V3/SnoozeServiceClient/list_snoozes.php
new file mode 100644
index 000000000000..f0fb94d66018
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/SnoozeServiceClient/list_snoozes.php
@@ -0,0 +1,81 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_SnoozeService_ListSnoozes_sync]
+use Google\ApiCore\ApiException;
+use Google\ApiCore\PagedListResponse;
+use Google\Cloud\Monitoring\V3\Client\SnoozeServiceClient;
+use Google\Cloud\Monitoring\V3\ListSnoozesRequest;
+use Google\Cloud\Monitoring\V3\Snooze;
+
+/**
+ * Lists the `Snooze`s associated with a project. Can optionally pass in
+ * `filter`, which specifies predicates to match `Snooze`s.
+ *
+ * @param string $formattedParent The
+ *                                [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+ *                                `Snooze`s should be listed. The format is:
+ *
+ *                                projects/[PROJECT_ID_OR_NUMBER]
+ *                                Please see {@see SnoozeServiceClient::workspaceName()} for help formatting this field.
+ */
+function list_snoozes_sample(string $formattedParent): void
+{
+    // Create a client.
+    $snoozeServiceClient = new SnoozeServiceClient();
+
+    // Prepare the request message.
+    $request = (new ListSnoozesRequest())
+        ->setParent($formattedParent);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var PagedListResponse $response */
+        $response = $snoozeServiceClient->listSnoozes($request);
+
+        /** @var Snooze $element */
+        foreach ($response as $element) {
+            printf('Element data: %s' . PHP_EOL, $element->serializeToJsonString());
+        }
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedParent = SnoozeServiceClient::workspaceName('[PROJECT]');
+
+    list_snoozes_sample($formattedParent);
+}
+// [END monitoring_v3_generated_SnoozeService_ListSnoozes_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/SnoozeServiceClient/update_snooze.php b/owl-bot-staging/Monitoring/v3/samples/V3/SnoozeServiceClient/update_snooze.php
new file mode 100644
index 000000000000..923e1a90c280
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/SnoozeServiceClient/update_snooze.php
@@ -0,0 +1,83 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_SnoozeService_UpdateSnooze_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\SnoozeServiceClient;
+use Google\Cloud\Monitoring\V3\Snooze;
+use Google\Cloud\Monitoring\V3\Snooze\Criteria;
+use Google\Cloud\Monitoring\V3\TimeInterval;
+use Google\Cloud\Monitoring\V3\UpdateSnoozeRequest;
+use Google\Protobuf\FieldMask;
+
+/**
+ * Updates a `Snooze`, identified by its `name`, with the parameters in the
+ * given `Snooze` object.
+ *
+ * @param string $snoozeDisplayName A display name for the `Snooze`. This can be, at most, 512
+ *                                  unicode characters.
+ */
+function update_snooze_sample(string $snoozeDisplayName): void
+{
+    // Create a client.
+    $snoozeServiceClient = new SnoozeServiceClient();
+
+    // Prepare the request message.
+    $snoozeCriteria = new Criteria();
+    $snoozeInterval = new TimeInterval();
+    $snooze = (new Snooze())
+        ->setCriteria($snoozeCriteria)
+        ->setInterval($snoozeInterval)
+        ->setDisplayName($snoozeDisplayName);
+    $updateMask = new FieldMask();
+    $request = (new UpdateSnoozeRequest())
+        ->setSnooze($snooze)
+        ->setUpdateMask($updateMask);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var Snooze $response */
+        $response = $snoozeServiceClient->updateSnooze($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $snoozeDisplayName = '[DISPLAY_NAME]';
+
+    update_snooze_sample($snoozeDisplayName);
+}
+// [END monitoring_v3_generated_SnoozeService_UpdateSnooze_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/UptimeCheckServiceClient/create_uptime_check_config.php b/owl-bot-staging/Monitoring/v3/samples/V3/UptimeCheckServiceClient/create_uptime_check_config.php
new file mode 100644
index 000000000000..6ad37bedcda5
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/UptimeCheckServiceClient/create_uptime_check_config.php
@@ -0,0 +1,76 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_UptimeCheckService_CreateUptimeCheckConfig_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\UptimeCheckServiceClient;
+use Google\Cloud\Monitoring\V3\CreateUptimeCheckConfigRequest;
+use Google\Cloud\Monitoring\V3\UptimeCheckConfig;
+
+/**
+ * Creates a new Uptime check configuration.
+ *
+ * @param string $parent The
+ *                       [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+ *                       to create the Uptime check. The format is:
+ *
+ *                       projects/[PROJECT_ID_OR_NUMBER]
+ */
+function create_uptime_check_config_sample(string $parent): void
+{
+    // Create a client.
+    $uptimeCheckServiceClient = new UptimeCheckServiceClient();
+
+    // Prepare the request message.
+    $uptimeCheckConfig = new UptimeCheckConfig();
+    $request = (new CreateUptimeCheckConfigRequest())
+        ->setParent($parent)
+        ->setUptimeCheckConfig($uptimeCheckConfig);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var UptimeCheckConfig $response */
+        $response = $uptimeCheckServiceClient->createUptimeCheckConfig($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $parent = '[PARENT]';
+
+    create_uptime_check_config_sample($parent);
+}
+// [END monitoring_v3_generated_UptimeCheckService_CreateUptimeCheckConfig_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/UptimeCheckServiceClient/delete_uptime_check_config.php b/owl-bot-staging/Monitoring/v3/samples/V3/UptimeCheckServiceClient/delete_uptime_check_config.php
new file mode 100644
index 000000000000..d33f28aec3ef
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/UptimeCheckServiceClient/delete_uptime_check_config.php
@@ -0,0 +1,76 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_UptimeCheckService_DeleteUptimeCheckConfig_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\UptimeCheckServiceClient;
+use Google\Cloud\Monitoring\V3\DeleteUptimeCheckConfigRequest;
+
+/**
+ * Deletes an Uptime check configuration. Note that this method will fail
+ * if the Uptime check configuration is referenced by an alert policy or
+ * other dependent configs that would be rendered invalid by the deletion.
+ *
+ * @param string $formattedName The Uptime check configuration to delete. The format is:
+ *
+ *                              projects/[PROJECT_ID_OR_NUMBER]/uptimeCheckConfigs/[UPTIME_CHECK_ID]
+ *                              Please see {@see UptimeCheckServiceClient::uptimeCheckConfigName()} for help formatting this field.
+ */
+function delete_uptime_check_config_sample(string $formattedName): void
+{
+    // Create a client.
+    $uptimeCheckServiceClient = new UptimeCheckServiceClient();
+
+    // Prepare the request message.
+    $request = (new DeleteUptimeCheckConfigRequest())
+        ->setName($formattedName);
+
+    // Call the API and handle any network failures.
+    try {
+        $uptimeCheckServiceClient->deleteUptimeCheckConfig($request);
+        printf('Call completed successfully.' . PHP_EOL);
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedName = UptimeCheckServiceClient::uptimeCheckConfigName(
+        '[PROJECT]',
+        '[UPTIME_CHECK_CONFIG]'
+    );
+
+    delete_uptime_check_config_sample($formattedName);
+}
+// [END monitoring_v3_generated_UptimeCheckService_DeleteUptimeCheckConfig_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/UptimeCheckServiceClient/get_uptime_check_config.php b/owl-bot-staging/Monitoring/v3/samples/V3/UptimeCheckServiceClient/get_uptime_check_config.php
new file mode 100644
index 000000000000..a3dbc0e2c419
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/UptimeCheckServiceClient/get_uptime_check_config.php
@@ -0,0 +1,76 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_UptimeCheckService_GetUptimeCheckConfig_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\UptimeCheckServiceClient;
+use Google\Cloud\Monitoring\V3\GetUptimeCheckConfigRequest;
+use Google\Cloud\Monitoring\V3\UptimeCheckConfig;
+
+/**
+ * Gets a single Uptime check configuration.
+ *
+ * @param string $formattedName The Uptime check configuration to retrieve. The format is:
+ *
+ *                              projects/[PROJECT_ID_OR_NUMBER]/uptimeCheckConfigs/[UPTIME_CHECK_ID]
+ *                              Please see {@see UptimeCheckServiceClient::uptimeCheckConfigName()} for help formatting this field.
+ */
+function get_uptime_check_config_sample(string $formattedName): void
+{
+    // Create a client.
+    $uptimeCheckServiceClient = new UptimeCheckServiceClient();
+
+    // Prepare the request message.
+    $request = (new GetUptimeCheckConfigRequest())
+        ->setName($formattedName);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var UptimeCheckConfig $response */
+        $response = $uptimeCheckServiceClient->getUptimeCheckConfig($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $formattedName = UptimeCheckServiceClient::uptimeCheckConfigName(
+        '[PROJECT]',
+        '[UPTIME_CHECK_CONFIG]'
+    );
+
+    get_uptime_check_config_sample($formattedName);
+}
+// [END monitoring_v3_generated_UptimeCheckService_GetUptimeCheckConfig_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/UptimeCheckServiceClient/list_uptime_check_configs.php b/owl-bot-staging/Monitoring/v3/samples/V3/UptimeCheckServiceClient/list_uptime_check_configs.php
new file mode 100644
index 000000000000..7a681db45273
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/UptimeCheckServiceClient/list_uptime_check_configs.php
@@ -0,0 +1,80 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_UptimeCheckService_ListUptimeCheckConfigs_sync]
+use Google\ApiCore\ApiException;
+use Google\ApiCore\PagedListResponse;
+use Google\Cloud\Monitoring\V3\Client\UptimeCheckServiceClient;
+use Google\Cloud\Monitoring\V3\ListUptimeCheckConfigsRequest;
+use Google\Cloud\Monitoring\V3\UptimeCheckConfig;
+
+/**
+ * Lists the existing valid Uptime check configurations for the project
+ * (leaving out any invalid configurations).
+ *
+ * @param string $parent The
+ *                       [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+ *                       Uptime check configurations are listed. The format is:
+ *
+ *                       projects/[PROJECT_ID_OR_NUMBER]
+ */
+function list_uptime_check_configs_sample(string $parent): void
+{
+    // Create a client.
+    $uptimeCheckServiceClient = new UptimeCheckServiceClient();
+
+    // Prepare the request message.
+    $request = (new ListUptimeCheckConfigsRequest())
+        ->setParent($parent);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var PagedListResponse $response */
+        $response = $uptimeCheckServiceClient->listUptimeCheckConfigs($request);
+
+        /** @var UptimeCheckConfig $element */
+        foreach ($response as $element) {
+            printf('Element data: %s' . PHP_EOL, $element->serializeToJsonString());
+        }
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+
+/**
+ * Helper to execute the sample.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function callSample(): void
+{
+    $parent = '[PARENT]';
+
+    list_uptime_check_configs_sample($parent);
+}
+// [END monitoring_v3_generated_UptimeCheckService_ListUptimeCheckConfigs_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/UptimeCheckServiceClient/list_uptime_check_ips.php b/owl-bot-staging/Monitoring/v3/samples/V3/UptimeCheckServiceClient/list_uptime_check_ips.php
new file mode 100644
index 000000000000..d719dced3cfa
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/UptimeCheckServiceClient/list_uptime_check_ips.php
@@ -0,0 +1,62 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_UptimeCheckService_ListUptimeCheckIps_sync]
+use Google\ApiCore\ApiException;
+use Google\ApiCore\PagedListResponse;
+use Google\Cloud\Monitoring\V3\Client\UptimeCheckServiceClient;
+use Google\Cloud\Monitoring\V3\ListUptimeCheckIpsRequest;
+use Google\Cloud\Monitoring\V3\UptimeCheckIp;
+
+/**
+ * Returns the list of IP addresses that checkers run from.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function list_uptime_check_ips_sample(): void
+{
+    // Create a client.
+    $uptimeCheckServiceClient = new UptimeCheckServiceClient();
+
+    // Prepare the request message.
+    $request = new ListUptimeCheckIpsRequest();
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var PagedListResponse $response */
+        $response = $uptimeCheckServiceClient->listUptimeCheckIps($request);
+
+        /** @var UptimeCheckIp $element */
+        foreach ($response as $element) {
+            printf('Element data: %s' . PHP_EOL, $element->serializeToJsonString());
+        }
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+// [END monitoring_v3_generated_UptimeCheckService_ListUptimeCheckIps_sync]
diff --git a/owl-bot-staging/Monitoring/v3/samples/V3/UptimeCheckServiceClient/update_uptime_check_config.php b/owl-bot-staging/Monitoring/v3/samples/V3/UptimeCheckServiceClient/update_uptime_check_config.php
new file mode 100644
index 000000000000..cdef12857a2e
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/samples/V3/UptimeCheckServiceClient/update_uptime_check_config.php
@@ -0,0 +1,62 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+require_once __DIR__ . '/../../../vendor/autoload.php';
+
+// [START monitoring_v3_generated_UptimeCheckService_UpdateUptimeCheckConfig_sync]
+use Google\ApiCore\ApiException;
+use Google\Cloud\Monitoring\V3\Client\UptimeCheckServiceClient;
+use Google\Cloud\Monitoring\V3\UpdateUptimeCheckConfigRequest;
+use Google\Cloud\Monitoring\V3\UptimeCheckConfig;
+
+/**
+ * Updates an Uptime check configuration. You can either replace the entire
+ * configuration with a new one or replace only certain fields in the current
+ * configuration by specifying the fields to be updated via `updateMask`.
+ * Returns the updated configuration.
+ *
+ * This sample has been automatically generated and should be regarded as a code
+ * template only. It will require modifications to work:
+ *  - It may require correct/in-range values for request initialization.
+ *  - It may require specifying regional endpoints when creating the service client,
+ *    please see the apiEndpoint client configuration option for more details.
+ */
+function update_uptime_check_config_sample(): void
+{
+    // Create a client.
+    $uptimeCheckServiceClient = new UptimeCheckServiceClient();
+
+    // Prepare the request message.
+    $uptimeCheckConfig = new UptimeCheckConfig();
+    $request = (new UpdateUptimeCheckConfigRequest())
+        ->setUptimeCheckConfig($uptimeCheckConfig);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var UptimeCheckConfig $response */
+        $response = $uptimeCheckServiceClient->updateUptimeCheckConfig($request);
+        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
+    } catch (ApiException $ex) {
+        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
+    }
+}
+// [END monitoring_v3_generated_UptimeCheckService_UpdateUptimeCheckConfig_sync]
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/AlertPolicyServiceClient.php b/owl-bot-staging/Monitoring/v3/src/V3/AlertPolicyServiceClient.php
new file mode 100644
index 000000000000..66d3410ff0cb
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/AlertPolicyServiceClient.php
@@ -0,0 +1,34 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * Generated by gapic-generator-php from the file
+ * https://github.com/googleapis/googleapis/blob/master/google/monitoring/v3/alert_service.proto
+ * Updates to the above are reflected here through a refresh process.
+ */
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Cloud\Monitoring\V3\Gapic\AlertPolicyServiceGapicClient;
+
+/** {@inheritdoc} */
+class AlertPolicyServiceClient extends AlertPolicyServiceGapicClient
+{
+    // This class is intentionally empty, and is intended to hold manual additions to
+    // the generated {@see AlertPolicyServiceGapicClient} class.
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/Client/AlertPolicyServiceClient.php b/owl-bot-staging/Monitoring/v3/src/V3/Client/AlertPolicyServiceClient.php
new file mode 100644
index 000000000000..fb53e3f651fc
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/Client/AlertPolicyServiceClient.php
@@ -0,0 +1,511 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * Generated by gapic-generator-php from the file
+ * https://github.com/googleapis/googleapis/blob/master/google/monitoring/v3/alert_service.proto
+ * Updates to the above are reflected here through a refresh process.
+ */
+
+namespace Google\Cloud\Monitoring\V3\Client;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\GapicClientTrait;
+use Google\ApiCore\PagedListResponse;
+use Google\ApiCore\ResourceHelperTrait;
+use Google\ApiCore\RetrySettings;
+use Google\ApiCore\Transport\TransportInterface;
+use Google\ApiCore\ValidationException;
+use Google\Auth\FetchAuthTokenInterface;
+use Google\Cloud\Monitoring\V3\AlertPolicy;
+use Google\Cloud\Monitoring\V3\CreateAlertPolicyRequest;
+use Google\Cloud\Monitoring\V3\DeleteAlertPolicyRequest;
+use Google\Cloud\Monitoring\V3\GetAlertPolicyRequest;
+use Google\Cloud\Monitoring\V3\ListAlertPoliciesRequest;
+use Google\Cloud\Monitoring\V3\UpdateAlertPolicyRequest;
+use GuzzleHttp\Promise\PromiseInterface;
+use Psr\Log\LoggerInterface;
+
+/**
+ * Service Description: The AlertPolicyService API is used to manage (list, create, delete,
+ * edit) alert policies in Cloud Monitoring. An alerting policy is
+ * a description of the conditions under which some aspect of your
+ * system is considered to be "unhealthy" and the ways to notify
+ * people or services about this state. In addition to using this API, alert
+ * policies can also be managed through
+ * [Cloud Monitoring](https://cloud.google.com/monitoring/docs/),
+ * which can be reached by clicking the "Monitoring" tab in
+ * [Cloud console](https://console.cloud.google.com/).
+ *
+ * This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods.
+ *
+ * Many parameters require resource names to be formatted in a particular way. To
+ * assist with these names, this class includes a format method for each type of
+ * name, and additionally a parseName method to extract the individual identifiers
+ * contained within formatted names that are returned by the API.
+ *
+ * @method PromiseInterface<AlertPolicy> createAlertPolicyAsync(CreateAlertPolicyRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<void> deleteAlertPolicyAsync(DeleteAlertPolicyRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<AlertPolicy> getAlertPolicyAsync(GetAlertPolicyRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<PagedListResponse> listAlertPoliciesAsync(ListAlertPoliciesRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<AlertPolicy> updateAlertPolicyAsync(UpdateAlertPolicyRequest $request, array $optionalArgs = [])
+ */
+final class AlertPolicyServiceClient
+{
+    use GapicClientTrait;
+    use ResourceHelperTrait;
+
+    /** The name of the service. */
+    private const SERVICE_NAME = 'google.monitoring.v3.AlertPolicyService';
+
+    /**
+     * The default address of the service.
+     *
+     * @deprecated SERVICE_ADDRESS_TEMPLATE should be used instead.
+     */
+    private const SERVICE_ADDRESS = 'monitoring.googleapis.com';
+
+    /** The address template of the service. */
+    private const SERVICE_ADDRESS_TEMPLATE = 'monitoring.UNIVERSE_DOMAIN';
+
+    /** The default port of the service. */
+    private const DEFAULT_SERVICE_PORT = 443;
+
+    /** The name of the code generator, to be included in the agent header. */
+    private const CODEGEN_NAME = 'gapic';
+
+    /** The default scopes required by the service. */
+    public static $serviceScopes = [
+        'https://www.googleapis.com/auth/cloud-platform',
+        'https://www.googleapis.com/auth/monitoring',
+        'https://www.googleapis.com/auth/monitoring.read',
+    ];
+
+    private static function getClientDefaults()
+    {
+        return [
+            'serviceName' => self::SERVICE_NAME,
+            'apiEndpoint' => self::SERVICE_ADDRESS . ':' . self::DEFAULT_SERVICE_PORT,
+            'clientConfig' => __DIR__ . '/../resources/alert_policy_service_client_config.json',
+            'descriptorsConfigPath' => __DIR__ . '/../resources/alert_policy_service_descriptor_config.php',
+            'gcpApiConfigPath' => __DIR__ . '/../resources/alert_policy_service_grpc_config.json',
+            'credentialsConfig' => [
+                'defaultScopes' => self::$serviceScopes,
+            ],
+            'transportConfig' => [
+                'rest' => [
+                    'restClientConfigPath' => __DIR__ . '/../resources/alert_policy_service_rest_client_config.php',
+                ],
+            ],
+        ];
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a alert_policy
+     * resource.
+     *
+     * @param string $project
+     * @param string $alertPolicy
+     *
+     * @return string The formatted alert_policy resource.
+     */
+    public static function alertPolicyName(string $project, string $alertPolicy): string
+    {
+        return self::getPathTemplate('alertPolicy')->render([
+            'project' => $project,
+            'alert_policy' => $alertPolicy,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * alert_policy_condition resource.
+     *
+     * @param string $project
+     * @param string $alertPolicy
+     * @param string $condition
+     *
+     * @return string The formatted alert_policy_condition resource.
+     */
+    public static function alertPolicyConditionName(string $project, string $alertPolicy, string $condition): string
+    {
+        return self::getPathTemplate('alertPolicyCondition')->render([
+            'project' => $project,
+            'alert_policy' => $alertPolicy,
+            'condition' => $condition,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * folder_alert_policy resource.
+     *
+     * @param string $folder
+     * @param string $alertPolicy
+     *
+     * @return string The formatted folder_alert_policy resource.
+     */
+    public static function folderAlertPolicyName(string $folder, string $alertPolicy): string
+    {
+        return self::getPathTemplate('folderAlertPolicy')->render([
+            'folder' => $folder,
+            'alert_policy' => $alertPolicy,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * folder_alert_policy_condition resource.
+     *
+     * @param string $folder
+     * @param string $alertPolicy
+     * @param string $condition
+     *
+     * @return string The formatted folder_alert_policy_condition resource.
+     */
+    public static function folderAlertPolicyConditionName(string $folder, string $alertPolicy, string $condition): string
+    {
+        return self::getPathTemplate('folderAlertPolicyCondition')->render([
+            'folder' => $folder,
+            'alert_policy' => $alertPolicy,
+            'condition' => $condition,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * organization_alert_policy resource.
+     *
+     * @param string $organization
+     * @param string $alertPolicy
+     *
+     * @return string The formatted organization_alert_policy resource.
+     */
+    public static function organizationAlertPolicyName(string $organization, string $alertPolicy): string
+    {
+        return self::getPathTemplate('organizationAlertPolicy')->render([
+            'organization' => $organization,
+            'alert_policy' => $alertPolicy,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * organization_alert_policy_condition resource.
+     *
+     * @param string $organization
+     * @param string $alertPolicy
+     * @param string $condition
+     *
+     * @return string The formatted organization_alert_policy_condition resource.
+     */
+    public static function organizationAlertPolicyConditionName(string $organization, string $alertPolicy, string $condition): string
+    {
+        return self::getPathTemplate('organizationAlertPolicyCondition')->render([
+            'organization' => $organization,
+            'alert_policy' => $alertPolicy,
+            'condition' => $condition,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * project_alert_policy resource.
+     *
+     * @param string $project
+     * @param string $alertPolicy
+     *
+     * @return string The formatted project_alert_policy resource.
+     */
+    public static function projectAlertPolicyName(string $project, string $alertPolicy): string
+    {
+        return self::getPathTemplate('projectAlertPolicy')->render([
+            'project' => $project,
+            'alert_policy' => $alertPolicy,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * project_alert_policy_condition resource.
+     *
+     * @param string $project
+     * @param string $alertPolicy
+     * @param string $condition
+     *
+     * @return string The formatted project_alert_policy_condition resource.
+     */
+    public static function projectAlertPolicyConditionName(string $project, string $alertPolicy, string $condition): string
+    {
+        return self::getPathTemplate('projectAlertPolicyCondition')->render([
+            'project' => $project,
+            'alert_policy' => $alertPolicy,
+            'condition' => $condition,
+        ]);
+    }
+
+    /**
+     * Parses a formatted name string and returns an associative array of the components in the name.
+     * The following name formats are supported:
+     * Template: Pattern
+     * - alertPolicy: projects/{project}/alertPolicies/{alert_policy}
+     * - alertPolicyCondition: projects/{project}/alertPolicies/{alert_policy}/conditions/{condition}
+     * - folderAlertPolicy: folders/{folder}/alertPolicies/{alert_policy}
+     * - folderAlertPolicyCondition: folders/{folder}/alertPolicies/{alert_policy}/conditions/{condition}
+     * - organizationAlertPolicy: organizations/{organization}/alertPolicies/{alert_policy}
+     * - organizationAlertPolicyCondition: organizations/{organization}/alertPolicies/{alert_policy}/conditions/{condition}
+     * - projectAlertPolicy: projects/{project}/alertPolicies/{alert_policy}
+     * - projectAlertPolicyCondition: projects/{project}/alertPolicies/{alert_policy}/conditions/{condition}
+     *
+     * The optional $template argument can be supplied to specify a particular pattern,
+     * and must match one of the templates listed above. If no $template argument is
+     * provided, or if the $template argument does not match one of the templates
+     * listed, then parseName will check each of the supported templates, and return
+     * the first match.
+     *
+     * @param string  $formattedName The formatted name string
+     * @param ?string $template      Optional name of template to match
+     *
+     * @return array An associative array from name component IDs to component values.
+     *
+     * @throws ValidationException If $formattedName could not be matched.
+     */
+    public static function parseName(string $formattedName, ?string $template = null): array
+    {
+        return self::parseFormattedName($formattedName, $template);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $options {
+     *     Optional. Options for configuring the service API wrapper.
+     *
+     *     @type string $apiEndpoint
+     *           The address of the API remote host. May optionally include the port, formatted
+     *           as "<uri>:<port>". Default 'monitoring.googleapis.com:443'.
+     *     @type string|array|FetchAuthTokenInterface|CredentialsWrapper $credentials
+     *           The credentials to be used by the client to authorize API calls. This option
+     *           accepts either a path to a credentials file, or a decoded credentials file as a
+     *           PHP array.
+     *           *Advanced usage*: In addition, this option can also accept a pre-constructed
+     *           {@see \Google\Auth\FetchAuthTokenInterface} object or
+     *           {@see \Google\ApiCore\CredentialsWrapper} object. Note that when one of these
+     *           objects are provided, any settings in $credentialsConfig will be ignored.
+     *     @type array $credentialsConfig
+     *           Options used to configure credentials, including auth token caching, for the
+     *           client. For a full list of supporting configuration options, see
+     *           {@see \Google\ApiCore\CredentialsWrapper::build()} .
+     *     @type bool $disableRetries
+     *           Determines whether or not retries defined by the client configuration should be
+     *           disabled. Defaults to `false`.
+     *     @type string|array $clientConfig
+     *           Client method configuration, including retry settings. This option can be either
+     *           a path to a JSON file, or a PHP array containing the decoded JSON data. By
+     *           default this settings points to the default client config file, which is
+     *           provided in the resources folder.
+     *     @type string|TransportInterface $transport
+     *           The transport used for executing network requests. May be either the string
+     *           `rest` or `grpc`. Defaults to `grpc` if gRPC support is detected on the system.
+     *           *Advanced usage*: Additionally, it is possible to pass in an already
+     *           instantiated {@see \Google\ApiCore\Transport\TransportInterface} object. Note
+     *           that when this object is provided, any settings in $transportConfig, and any
+     *           $apiEndpoint setting, will be ignored.
+     *     @type array $transportConfig
+     *           Configuration options that will be used to construct the transport. Options for
+     *           each supported transport type should be passed in a key for that transport. For
+     *           example:
+     *           $transportConfig = [
+     *               'grpc' => [...],
+     *               'rest' => [...],
+     *           ];
+     *           See the {@see \Google\ApiCore\Transport\GrpcTransport::build()} and
+     *           {@see \Google\ApiCore\Transport\RestTransport::build()} methods for the
+     *           supported options.
+     *     @type callable $clientCertSource
+     *           A callable which returns the client cert as a string. This can be used to
+     *           provide a certificate and private key to the transport layer for mTLS.
+     *     @type false|LoggerInterface $logger
+     *           A PSR-3 compliant logger. If set to false, logging is disabled, ignoring the
+     *           'GOOGLE_SDK_PHP_LOGGING' environment flag
+     * }
+     *
+     * @throws ValidationException
+     */
+    public function __construct(array $options = [])
+    {
+        $clientOptions = $this->buildClientOptions($options);
+        $this->setClientOptions($clientOptions);
+    }
+
+    /** Handles execution of the async variants for each documented method. */
+    public function __call($method, $args)
+    {
+        if (substr($method, -5) !== 'Async') {
+            trigger_error('Call to undefined method ' . __CLASS__ . "::$method()", E_USER_ERROR);
+        }
+
+        array_unshift($args, substr($method, 0, -5));
+        return call_user_func_array([$this, 'startAsyncCall'], $args);
+    }
+
+    /**
+     * Creates a new alerting policy.
+     *
+     * Design your application to single-thread API calls that modify the state of
+     * alerting policies in a single project. This includes calls to
+     * CreateAlertPolicy, DeleteAlertPolicy and UpdateAlertPolicy.
+     *
+     * The async variant is {@see AlertPolicyServiceClient::createAlertPolicyAsync()} .
+     *
+     * @example samples/V3/AlertPolicyServiceClient/create_alert_policy.php
+     *
+     * @param CreateAlertPolicyRequest $request     A request to house fields associated with the call.
+     * @param array                    $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return AlertPolicy
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function createAlertPolicy(CreateAlertPolicyRequest $request, array $callOptions = []): AlertPolicy
+    {
+        return $this->startApiCall('CreateAlertPolicy', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Deletes an alerting policy.
+     *
+     * Design your application to single-thread API calls that modify the state of
+     * alerting policies in a single project. This includes calls to
+     * CreateAlertPolicy, DeleteAlertPolicy and UpdateAlertPolicy.
+     *
+     * The async variant is {@see AlertPolicyServiceClient::deleteAlertPolicyAsync()} .
+     *
+     * @example samples/V3/AlertPolicyServiceClient/delete_alert_policy.php
+     *
+     * @param DeleteAlertPolicyRequest $request     A request to house fields associated with the call.
+     * @param array                    $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function deleteAlertPolicy(DeleteAlertPolicyRequest $request, array $callOptions = []): void
+    {
+        $this->startApiCall('DeleteAlertPolicy', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Gets a single alerting policy.
+     *
+     * The async variant is {@see AlertPolicyServiceClient::getAlertPolicyAsync()} .
+     *
+     * @example samples/V3/AlertPolicyServiceClient/get_alert_policy.php
+     *
+     * @param GetAlertPolicyRequest $request     A request to house fields associated with the call.
+     * @param array                 $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return AlertPolicy
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function getAlertPolicy(GetAlertPolicyRequest $request, array $callOptions = []): AlertPolicy
+    {
+        return $this->startApiCall('GetAlertPolicy', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Lists the existing alerting policies for the workspace.
+     *
+     * The async variant is {@see AlertPolicyServiceClient::listAlertPoliciesAsync()} .
+     *
+     * @example samples/V3/AlertPolicyServiceClient/list_alert_policies.php
+     *
+     * @param ListAlertPoliciesRequest $request     A request to house fields associated with the call.
+     * @param array                    $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return PagedListResponse
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function listAlertPolicies(ListAlertPoliciesRequest $request, array $callOptions = []): PagedListResponse
+    {
+        return $this->startApiCall('ListAlertPolicies', $request, $callOptions);
+    }
+
+    /**
+     * Updates an alerting policy. You can either replace the entire policy with
+     * a new one or replace only certain fields in the current alerting policy by
+     * specifying the fields to be updated via `updateMask`. Returns the
+     * updated alerting policy.
+     *
+     * Design your application to single-thread API calls that modify the state of
+     * alerting policies in a single project. This includes calls to
+     * CreateAlertPolicy, DeleteAlertPolicy and UpdateAlertPolicy.
+     *
+     * The async variant is {@see AlertPolicyServiceClient::updateAlertPolicyAsync()} .
+     *
+     * @example samples/V3/AlertPolicyServiceClient/update_alert_policy.php
+     *
+     * @param UpdateAlertPolicyRequest $request     A request to house fields associated with the call.
+     * @param array                    $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return AlertPolicy
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function updateAlertPolicy(UpdateAlertPolicyRequest $request, array $callOptions = []): AlertPolicy
+    {
+        return $this->startApiCall('UpdateAlertPolicy', $request, $callOptions)->wait();
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/Client/GroupServiceClient.php b/owl-bot-staging/Monitoring/v3/src/V3/Client/GroupServiceClient.php
new file mode 100644
index 000000000000..5300fa582fd7
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/Client/GroupServiceClient.php
@@ -0,0 +1,448 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * Generated by gapic-generator-php from the file
+ * https://github.com/googleapis/googleapis/blob/master/google/monitoring/v3/group_service.proto
+ * Updates to the above are reflected here through a refresh process.
+ */
+
+namespace Google\Cloud\Monitoring\V3\Client;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\GapicClientTrait;
+use Google\ApiCore\PagedListResponse;
+use Google\ApiCore\ResourceHelperTrait;
+use Google\ApiCore\RetrySettings;
+use Google\ApiCore\Transport\TransportInterface;
+use Google\ApiCore\ValidationException;
+use Google\Auth\FetchAuthTokenInterface;
+use Google\Cloud\Monitoring\V3\CreateGroupRequest;
+use Google\Cloud\Monitoring\V3\DeleteGroupRequest;
+use Google\Cloud\Monitoring\V3\GetGroupRequest;
+use Google\Cloud\Monitoring\V3\Group;
+use Google\Cloud\Monitoring\V3\ListGroupMembersRequest;
+use Google\Cloud\Monitoring\V3\ListGroupsRequest;
+use Google\Cloud\Monitoring\V3\UpdateGroupRequest;
+use GuzzleHttp\Promise\PromiseInterface;
+use Psr\Log\LoggerInterface;
+
+/**
+ * Service Description: The Group API lets you inspect and manage your
+ * [groups](#google.monitoring.v3.Group).
+ *
+ * A group is a named filter that is used to identify
+ * a collection of monitored resources. Groups are typically used to
+ * mirror the physical and/or logical topology of the environment.
+ * Because group membership is computed dynamically, monitored
+ * resources that are started in the future are automatically placed
+ * in matching groups. By using a group to name monitored resources in,
+ * for example, an alert policy, the target of that alert policy is
+ * updated automatically as monitored resources are added and removed
+ * from the infrastructure.
+ *
+ * This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods.
+ *
+ * Many parameters require resource names to be formatted in a particular way. To
+ * assist with these names, this class includes a format method for each type of
+ * name, and additionally a parseName method to extract the individual identifiers
+ * contained within formatted names that are returned by the API.
+ *
+ * @method PromiseInterface<Group> createGroupAsync(CreateGroupRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<void> deleteGroupAsync(DeleteGroupRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<Group> getGroupAsync(GetGroupRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<PagedListResponse> listGroupMembersAsync(ListGroupMembersRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<PagedListResponse> listGroupsAsync(ListGroupsRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<Group> updateGroupAsync(UpdateGroupRequest $request, array $optionalArgs = [])
+ */
+final class GroupServiceClient
+{
+    use GapicClientTrait;
+    use ResourceHelperTrait;
+
+    /** The name of the service. */
+    private const SERVICE_NAME = 'google.monitoring.v3.GroupService';
+
+    /**
+     * The default address of the service.
+     *
+     * @deprecated SERVICE_ADDRESS_TEMPLATE should be used instead.
+     */
+    private const SERVICE_ADDRESS = 'monitoring.googleapis.com';
+
+    /** The address template of the service. */
+    private const SERVICE_ADDRESS_TEMPLATE = 'monitoring.UNIVERSE_DOMAIN';
+
+    /** The default port of the service. */
+    private const DEFAULT_SERVICE_PORT = 443;
+
+    /** The name of the code generator, to be included in the agent header. */
+    private const CODEGEN_NAME = 'gapic';
+
+    /** The default scopes required by the service. */
+    public static $serviceScopes = [
+        'https://www.googleapis.com/auth/cloud-platform',
+        'https://www.googleapis.com/auth/monitoring',
+        'https://www.googleapis.com/auth/monitoring.read',
+    ];
+
+    private static function getClientDefaults()
+    {
+        return [
+            'serviceName' => self::SERVICE_NAME,
+            'apiEndpoint' => self::SERVICE_ADDRESS . ':' . self::DEFAULT_SERVICE_PORT,
+            'clientConfig' => __DIR__ . '/../resources/group_service_client_config.json',
+            'descriptorsConfigPath' => __DIR__ . '/../resources/group_service_descriptor_config.php',
+            'gcpApiConfigPath' => __DIR__ . '/../resources/group_service_grpc_config.json',
+            'credentialsConfig' => [
+                'defaultScopes' => self::$serviceScopes,
+            ],
+            'transportConfig' => [
+                'rest' => [
+                    'restClientConfigPath' => __DIR__ . '/../resources/group_service_rest_client_config.php',
+                ],
+            ],
+        ];
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a folder_group
+     * resource.
+     *
+     * @param string $folder
+     * @param string $group
+     *
+     * @return string The formatted folder_group resource.
+     */
+    public static function folderGroupName(string $folder, string $group): string
+    {
+        return self::getPathTemplate('folderGroup')->render([
+            'folder' => $folder,
+            'group' => $group,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a group
+     * resource.
+     *
+     * @param string $project
+     * @param string $group
+     *
+     * @return string The formatted group resource.
+     */
+    public static function groupName(string $project, string $group): string
+    {
+        return self::getPathTemplate('group')->render([
+            'project' => $project,
+            'group' => $group,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * organization_group resource.
+     *
+     * @param string $organization
+     * @param string $group
+     *
+     * @return string The formatted organization_group resource.
+     */
+    public static function organizationGroupName(string $organization, string $group): string
+    {
+        return self::getPathTemplate('organizationGroup')->render([
+            'organization' => $organization,
+            'group' => $group,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * project_group resource.
+     *
+     * @param string $project
+     * @param string $group
+     *
+     * @return string The formatted project_group resource.
+     */
+    public static function projectGroupName(string $project, string $group): string
+    {
+        return self::getPathTemplate('projectGroup')->render([
+            'project' => $project,
+            'group' => $group,
+        ]);
+    }
+
+    /**
+     * Parses a formatted name string and returns an associative array of the components in the name.
+     * The following name formats are supported:
+     * Template: Pattern
+     * - folderGroup: folders/{folder}/groups/{group}
+     * - group: projects/{project}/groups/{group}
+     * - organizationGroup: organizations/{organization}/groups/{group}
+     * - projectGroup: projects/{project}/groups/{group}
+     *
+     * The optional $template argument can be supplied to specify a particular pattern,
+     * and must match one of the templates listed above. If no $template argument is
+     * provided, or if the $template argument does not match one of the templates
+     * listed, then parseName will check each of the supported templates, and return
+     * the first match.
+     *
+     * @param string  $formattedName The formatted name string
+     * @param ?string $template      Optional name of template to match
+     *
+     * @return array An associative array from name component IDs to component values.
+     *
+     * @throws ValidationException If $formattedName could not be matched.
+     */
+    public static function parseName(string $formattedName, ?string $template = null): array
+    {
+        return self::parseFormattedName($formattedName, $template);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $options {
+     *     Optional. Options for configuring the service API wrapper.
+     *
+     *     @type string $apiEndpoint
+     *           The address of the API remote host. May optionally include the port, formatted
+     *           as "<uri>:<port>". Default 'monitoring.googleapis.com:443'.
+     *     @type string|array|FetchAuthTokenInterface|CredentialsWrapper $credentials
+     *           The credentials to be used by the client to authorize API calls. This option
+     *           accepts either a path to a credentials file, or a decoded credentials file as a
+     *           PHP array.
+     *           *Advanced usage*: In addition, this option can also accept a pre-constructed
+     *           {@see \Google\Auth\FetchAuthTokenInterface} object or
+     *           {@see \Google\ApiCore\CredentialsWrapper} object. Note that when one of these
+     *           objects are provided, any settings in $credentialsConfig will be ignored.
+     *     @type array $credentialsConfig
+     *           Options used to configure credentials, including auth token caching, for the
+     *           client. For a full list of supporting configuration options, see
+     *           {@see \Google\ApiCore\CredentialsWrapper::build()} .
+     *     @type bool $disableRetries
+     *           Determines whether or not retries defined by the client configuration should be
+     *           disabled. Defaults to `false`.
+     *     @type string|array $clientConfig
+     *           Client method configuration, including retry settings. This option can be either
+     *           a path to a JSON file, or a PHP array containing the decoded JSON data. By
+     *           default this settings points to the default client config file, which is
+     *           provided in the resources folder.
+     *     @type string|TransportInterface $transport
+     *           The transport used for executing network requests. May be either the string
+     *           `rest` or `grpc`. Defaults to `grpc` if gRPC support is detected on the system.
+     *           *Advanced usage*: Additionally, it is possible to pass in an already
+     *           instantiated {@see \Google\ApiCore\Transport\TransportInterface} object. Note
+     *           that when this object is provided, any settings in $transportConfig, and any
+     *           $apiEndpoint setting, will be ignored.
+     *     @type array $transportConfig
+     *           Configuration options that will be used to construct the transport. Options for
+     *           each supported transport type should be passed in a key for that transport. For
+     *           example:
+     *           $transportConfig = [
+     *               'grpc' => [...],
+     *               'rest' => [...],
+     *           ];
+     *           See the {@see \Google\ApiCore\Transport\GrpcTransport::build()} and
+     *           {@see \Google\ApiCore\Transport\RestTransport::build()} methods for the
+     *           supported options.
+     *     @type callable $clientCertSource
+     *           A callable which returns the client cert as a string. This can be used to
+     *           provide a certificate and private key to the transport layer for mTLS.
+     *     @type false|LoggerInterface $logger
+     *           A PSR-3 compliant logger. If set to false, logging is disabled, ignoring the
+     *           'GOOGLE_SDK_PHP_LOGGING' environment flag
+     * }
+     *
+     * @throws ValidationException
+     */
+    public function __construct(array $options = [])
+    {
+        $clientOptions = $this->buildClientOptions($options);
+        $this->setClientOptions($clientOptions);
+    }
+
+    /** Handles execution of the async variants for each documented method. */
+    public function __call($method, $args)
+    {
+        if (substr($method, -5) !== 'Async') {
+            trigger_error('Call to undefined method ' . __CLASS__ . "::$method()", E_USER_ERROR);
+        }
+
+        array_unshift($args, substr($method, 0, -5));
+        return call_user_func_array([$this, 'startAsyncCall'], $args);
+    }
+
+    /**
+     * Creates a new group.
+     *
+     * The async variant is {@see GroupServiceClient::createGroupAsync()} .
+     *
+     * @example samples/V3/GroupServiceClient/create_group.php
+     *
+     * @param CreateGroupRequest $request     A request to house fields associated with the call.
+     * @param array              $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return Group
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function createGroup(CreateGroupRequest $request, array $callOptions = []): Group
+    {
+        return $this->startApiCall('CreateGroup', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Deletes an existing group.
+     *
+     * The async variant is {@see GroupServiceClient::deleteGroupAsync()} .
+     *
+     * @example samples/V3/GroupServiceClient/delete_group.php
+     *
+     * @param DeleteGroupRequest $request     A request to house fields associated with the call.
+     * @param array              $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function deleteGroup(DeleteGroupRequest $request, array $callOptions = []): void
+    {
+        $this->startApiCall('DeleteGroup', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Gets a single group.
+     *
+     * The async variant is {@see GroupServiceClient::getGroupAsync()} .
+     *
+     * @example samples/V3/GroupServiceClient/get_group.php
+     *
+     * @param GetGroupRequest $request     A request to house fields associated with the call.
+     * @param array           $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return Group
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function getGroup(GetGroupRequest $request, array $callOptions = []): Group
+    {
+        return $this->startApiCall('GetGroup', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Lists the monitored resources that are members of a group.
+     *
+     * The async variant is {@see GroupServiceClient::listGroupMembersAsync()} .
+     *
+     * @example samples/V3/GroupServiceClient/list_group_members.php
+     *
+     * @param ListGroupMembersRequest $request     A request to house fields associated with the call.
+     * @param array                   $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return PagedListResponse
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function listGroupMembers(ListGroupMembersRequest $request, array $callOptions = []): PagedListResponse
+    {
+        return $this->startApiCall('ListGroupMembers', $request, $callOptions);
+    }
+
+    /**
+     * Lists the existing groups.
+     *
+     * The async variant is {@see GroupServiceClient::listGroupsAsync()} .
+     *
+     * @example samples/V3/GroupServiceClient/list_groups.php
+     *
+     * @param ListGroupsRequest $request     A request to house fields associated with the call.
+     * @param array             $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return PagedListResponse
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function listGroups(ListGroupsRequest $request, array $callOptions = []): PagedListResponse
+    {
+        return $this->startApiCall('ListGroups', $request, $callOptions);
+    }
+
+    /**
+     * Updates an existing group.
+     * You can change any group attributes except `name`.
+     *
+     * The async variant is {@see GroupServiceClient::updateGroupAsync()} .
+     *
+     * @example samples/V3/GroupServiceClient/update_group.php
+     *
+     * @param UpdateGroupRequest $request     A request to house fields associated with the call.
+     * @param array              $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return Group
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function updateGroup(UpdateGroupRequest $request, array $callOptions = []): Group
+    {
+        return $this->startApiCall('UpdateGroup', $request, $callOptions)->wait();
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/Client/MetricServiceClient.php b/owl-bot-staging/Monitoring/v3/src/V3/Client/MetricServiceClient.php
new file mode 100644
index 000000000000..543c25b8c7d1
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/Client/MetricServiceClient.php
@@ -0,0 +1,679 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * Generated by gapic-generator-php from the file
+ * https://github.com/googleapis/googleapis/blob/master/google/monitoring/v3/metric_service.proto
+ * Updates to the above are reflected here through a refresh process.
+ */
+
+namespace Google\Cloud\Monitoring\V3\Client;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\GapicClientTrait;
+use Google\ApiCore\PagedListResponse;
+use Google\ApiCore\ResourceHelperTrait;
+use Google\ApiCore\RetrySettings;
+use Google\ApiCore\Transport\TransportInterface;
+use Google\ApiCore\ValidationException;
+use Google\Api\MetricDescriptor;
+use Google\Api\MonitoredResourceDescriptor;
+use Google\Auth\FetchAuthTokenInterface;
+use Google\Cloud\Monitoring\V3\CreateMetricDescriptorRequest;
+use Google\Cloud\Monitoring\V3\CreateTimeSeriesRequest;
+use Google\Cloud\Monitoring\V3\DeleteMetricDescriptorRequest;
+use Google\Cloud\Monitoring\V3\GetMetricDescriptorRequest;
+use Google\Cloud\Monitoring\V3\GetMonitoredResourceDescriptorRequest;
+use Google\Cloud\Monitoring\V3\ListMetricDescriptorsRequest;
+use Google\Cloud\Monitoring\V3\ListMonitoredResourceDescriptorsRequest;
+use Google\Cloud\Monitoring\V3\ListTimeSeriesRequest;
+use Google\Cloud\Monitoring\V3\TimeSeries;
+use GuzzleHttp\Promise\PromiseInterface;
+use Psr\Log\LoggerInterface;
+
+/**
+ * Service Description: Manages metric descriptors, monitored resource descriptors, and
+ * time series data.
+ *
+ * This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods.
+ *
+ * Many parameters require resource names to be formatted in a particular way. To
+ * assist with these names, this class includes a format method for each type of
+ * name, and additionally a parseName method to extract the individual identifiers
+ * contained within formatted names that are returned by the API.
+ *
+ * @method PromiseInterface<MetricDescriptor> createMetricDescriptorAsync(CreateMetricDescriptorRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<void> createServiceTimeSeriesAsync(CreateTimeSeriesRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<void> createTimeSeriesAsync(CreateTimeSeriesRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<void> deleteMetricDescriptorAsync(DeleteMetricDescriptorRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<MetricDescriptor> getMetricDescriptorAsync(GetMetricDescriptorRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<MonitoredResourceDescriptor> getMonitoredResourceDescriptorAsync(GetMonitoredResourceDescriptorRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<PagedListResponse> listMetricDescriptorsAsync(ListMetricDescriptorsRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<PagedListResponse> listMonitoredResourceDescriptorsAsync(ListMonitoredResourceDescriptorsRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<PagedListResponse> listTimeSeriesAsync(ListTimeSeriesRequest $request, array $optionalArgs = [])
+ */
+final class MetricServiceClient
+{
+    use GapicClientTrait;
+    use ResourceHelperTrait;
+
+    /** The name of the service. */
+    private const SERVICE_NAME = 'google.monitoring.v3.MetricService';
+
+    /**
+     * The default address of the service.
+     *
+     * @deprecated SERVICE_ADDRESS_TEMPLATE should be used instead.
+     */
+    private const SERVICE_ADDRESS = 'monitoring.googleapis.com';
+
+    /** The address template of the service. */
+    private const SERVICE_ADDRESS_TEMPLATE = 'monitoring.UNIVERSE_DOMAIN';
+
+    /** The default port of the service. */
+    private const DEFAULT_SERVICE_PORT = 443;
+
+    /** The name of the code generator, to be included in the agent header. */
+    private const CODEGEN_NAME = 'gapic';
+
+    /** The default scopes required by the service. */
+    public static $serviceScopes = [
+        'https://www.googleapis.com/auth/cloud-platform',
+        'https://www.googleapis.com/auth/monitoring',
+        'https://www.googleapis.com/auth/monitoring.read',
+        'https://www.googleapis.com/auth/monitoring.write',
+    ];
+
+    private static function getClientDefaults()
+    {
+        return [
+            'serviceName' => self::SERVICE_NAME,
+            'apiEndpoint' => self::SERVICE_ADDRESS . ':' . self::DEFAULT_SERVICE_PORT,
+            'clientConfig' => __DIR__ . '/../resources/metric_service_client_config.json',
+            'descriptorsConfigPath' => __DIR__ . '/../resources/metric_service_descriptor_config.php',
+            'gcpApiConfigPath' => __DIR__ . '/../resources/metric_service_grpc_config.json',
+            'credentialsConfig' => [
+                'defaultScopes' => self::$serviceScopes,
+            ],
+            'transportConfig' => [
+                'rest' => [
+                    'restClientConfigPath' => __DIR__ . '/../resources/metric_service_rest_client_config.php',
+                ],
+            ],
+        ];
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a folder
+     * resource.
+     *
+     * @param string $folder
+     *
+     * @return string The formatted folder resource.
+     */
+    public static function folderName(string $folder): string
+    {
+        return self::getPathTemplate('folder')->render([
+            'folder' => $folder,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * folder_metric_descriptor resource.
+     *
+     * @param string $folder
+     * @param string $metricDescriptor
+     *
+     * @return string The formatted folder_metric_descriptor resource.
+     */
+    public static function folderMetricDescriptorName(string $folder, string $metricDescriptor): string
+    {
+        return self::getPathTemplate('folderMetricDescriptor')->render([
+            'folder' => $folder,
+            'metric_descriptor' => $metricDescriptor,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * folder_monitored_resource_descriptor resource.
+     *
+     * @param string $folder
+     * @param string $monitoredResourceDescriptor
+     *
+     * @return string The formatted folder_monitored_resource_descriptor resource.
+     */
+    public static function folderMonitoredResourceDescriptorName(string $folder, string $monitoredResourceDescriptor): string
+    {
+        return self::getPathTemplate('folderMonitoredResourceDescriptor')->render([
+            'folder' => $folder,
+            'monitored_resource_descriptor' => $monitoredResourceDescriptor,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * metric_descriptor resource.
+     *
+     * @param string $project
+     * @param string $metricDescriptor
+     *
+     * @return string The formatted metric_descriptor resource.
+     */
+    public static function metricDescriptorName(string $project, string $metricDescriptor): string
+    {
+        return self::getPathTemplate('metricDescriptor')->render([
+            'project' => $project,
+            'metric_descriptor' => $metricDescriptor,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * monitored_resource_descriptor resource.
+     *
+     * @param string $project
+     * @param string $monitoredResourceDescriptor
+     *
+     * @return string The formatted monitored_resource_descriptor resource.
+     */
+    public static function monitoredResourceDescriptorName(string $project, string $monitoredResourceDescriptor): string
+    {
+        return self::getPathTemplate('monitoredResourceDescriptor')->render([
+            'project' => $project,
+            'monitored_resource_descriptor' => $monitoredResourceDescriptor,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a organization
+     * resource.
+     *
+     * @param string $organization
+     *
+     * @return string The formatted organization resource.
+     */
+    public static function organizationName(string $organization): string
+    {
+        return self::getPathTemplate('organization')->render([
+            'organization' => $organization,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * organization_metric_descriptor resource.
+     *
+     * @param string $organization
+     * @param string $metricDescriptor
+     *
+     * @return string The formatted organization_metric_descriptor resource.
+     */
+    public static function organizationMetricDescriptorName(string $organization, string $metricDescriptor): string
+    {
+        return self::getPathTemplate('organizationMetricDescriptor')->render([
+            'organization' => $organization,
+            'metric_descriptor' => $metricDescriptor,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * organization_monitored_resource_descriptor resource.
+     *
+     * @param string $organization
+     * @param string $monitoredResourceDescriptor
+     *
+     * @return string The formatted organization_monitored_resource_descriptor resource.
+     */
+    public static function organizationMonitoredResourceDescriptorName(string $organization, string $monitoredResourceDescriptor): string
+    {
+        return self::getPathTemplate('organizationMonitoredResourceDescriptor')->render([
+            'organization' => $organization,
+            'monitored_resource_descriptor' => $monitoredResourceDescriptor,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a project
+     * resource.
+     *
+     * @param string $project
+     *
+     * @return string The formatted project resource.
+     */
+    public static function projectName(string $project): string
+    {
+        return self::getPathTemplate('project')->render([
+            'project' => $project,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * project_metric_descriptor resource.
+     *
+     * @param string $project
+     * @param string $metricDescriptor
+     *
+     * @return string The formatted project_metric_descriptor resource.
+     */
+    public static function projectMetricDescriptorName(string $project, string $metricDescriptor): string
+    {
+        return self::getPathTemplate('projectMetricDescriptor')->render([
+            'project' => $project,
+            'metric_descriptor' => $metricDescriptor,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * project_monitored_resource_descriptor resource.
+     *
+     * @param string $project
+     * @param string $monitoredResourceDescriptor
+     *
+     * @return string The formatted project_monitored_resource_descriptor resource.
+     */
+    public static function projectMonitoredResourceDescriptorName(string $project, string $monitoredResourceDescriptor): string
+    {
+        return self::getPathTemplate('projectMonitoredResourceDescriptor')->render([
+            'project' => $project,
+            'monitored_resource_descriptor' => $monitoredResourceDescriptor,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a workspace
+     * resource.
+     *
+     * @param string $project
+     *
+     * @return string The formatted workspace resource.
+     */
+    public static function workspaceName(string $project): string
+    {
+        return self::getPathTemplate('workspace')->render([
+            'project' => $project,
+        ]);
+    }
+
+    /**
+     * Parses a formatted name string and returns an associative array of the components in the name.
+     * The following name formats are supported:
+     * Template: Pattern
+     * - folder: folders/{folder}
+     * - folderMetricDescriptor: folders/{folder}/metricDescriptors/{metric_descriptor=**}
+     * - folderMonitoredResourceDescriptor: folders/{folder}/monitoredResourceDescriptors/{monitored_resource_descriptor}
+     * - metricDescriptor: projects/{project}/metricDescriptors/{metric_descriptor=**}
+     * - monitoredResourceDescriptor: projects/{project}/monitoredResourceDescriptors/{monitored_resource_descriptor}
+     * - organization: organizations/{organization}
+     * - organizationMetricDescriptor: organizations/{organization}/metricDescriptors/{metric_descriptor=**}
+     * - organizationMonitoredResourceDescriptor: organizations/{organization}/monitoredResourceDescriptors/{monitored_resource_descriptor}
+     * - project: projects/{project}
+     * - projectMetricDescriptor: projects/{project}/metricDescriptors/{metric_descriptor=**}
+     * - projectMonitoredResourceDescriptor: projects/{project}/monitoredResourceDescriptors/{monitored_resource_descriptor}
+     * - workspace: projects/{project}
+     *
+     * The optional $template argument can be supplied to specify a particular pattern,
+     * and must match one of the templates listed above. If no $template argument is
+     * provided, or if the $template argument does not match one of the templates
+     * listed, then parseName will check each of the supported templates, and return
+     * the first match.
+     *
+     * @param string  $formattedName The formatted name string
+     * @param ?string $template      Optional name of template to match
+     *
+     * @return array An associative array from name component IDs to component values.
+     *
+     * @throws ValidationException If $formattedName could not be matched.
+     */
+    public static function parseName(string $formattedName, ?string $template = null): array
+    {
+        return self::parseFormattedName($formattedName, $template);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $options {
+     *     Optional. Options for configuring the service API wrapper.
+     *
+     *     @type string $apiEndpoint
+     *           The address of the API remote host. May optionally include the port, formatted
+     *           as "<uri>:<port>". Default 'monitoring.googleapis.com:443'.
+     *     @type string|array|FetchAuthTokenInterface|CredentialsWrapper $credentials
+     *           The credentials to be used by the client to authorize API calls. This option
+     *           accepts either a path to a credentials file, or a decoded credentials file as a
+     *           PHP array.
+     *           *Advanced usage*: In addition, this option can also accept a pre-constructed
+     *           {@see \Google\Auth\FetchAuthTokenInterface} object or
+     *           {@see \Google\ApiCore\CredentialsWrapper} object. Note that when one of these
+     *           objects are provided, any settings in $credentialsConfig will be ignored.
+     *     @type array $credentialsConfig
+     *           Options used to configure credentials, including auth token caching, for the
+     *           client. For a full list of supporting configuration options, see
+     *           {@see \Google\ApiCore\CredentialsWrapper::build()} .
+     *     @type bool $disableRetries
+     *           Determines whether or not retries defined by the client configuration should be
+     *           disabled. Defaults to `false`.
+     *     @type string|array $clientConfig
+     *           Client method configuration, including retry settings. This option can be either
+     *           a path to a JSON file, or a PHP array containing the decoded JSON data. By
+     *           default this settings points to the default client config file, which is
+     *           provided in the resources folder.
+     *     @type string|TransportInterface $transport
+     *           The transport used for executing network requests. May be either the string
+     *           `rest` or `grpc`. Defaults to `grpc` if gRPC support is detected on the system.
+     *           *Advanced usage*: Additionally, it is possible to pass in an already
+     *           instantiated {@see \Google\ApiCore\Transport\TransportInterface} object. Note
+     *           that when this object is provided, any settings in $transportConfig, and any
+     *           $apiEndpoint setting, will be ignored.
+     *     @type array $transportConfig
+     *           Configuration options that will be used to construct the transport. Options for
+     *           each supported transport type should be passed in a key for that transport. For
+     *           example:
+     *           $transportConfig = [
+     *               'grpc' => [...],
+     *               'rest' => [...],
+     *           ];
+     *           See the {@see \Google\ApiCore\Transport\GrpcTransport::build()} and
+     *           {@see \Google\ApiCore\Transport\RestTransport::build()} methods for the
+     *           supported options.
+     *     @type callable $clientCertSource
+     *           A callable which returns the client cert as a string. This can be used to
+     *           provide a certificate and private key to the transport layer for mTLS.
+     *     @type false|LoggerInterface $logger
+     *           A PSR-3 compliant logger. If set to false, logging is disabled, ignoring the
+     *           'GOOGLE_SDK_PHP_LOGGING' environment flag
+     * }
+     *
+     * @throws ValidationException
+     */
+    public function __construct(array $options = [])
+    {
+        $clientOptions = $this->buildClientOptions($options);
+        $this->setClientOptions($clientOptions);
+    }
+
+    /** Handles execution of the async variants for each documented method. */
+    public function __call($method, $args)
+    {
+        if (substr($method, -5) !== 'Async') {
+            trigger_error('Call to undefined method ' . __CLASS__ . "::$method()", E_USER_ERROR);
+        }
+
+        array_unshift($args, substr($method, 0, -5));
+        return call_user_func_array([$this, 'startAsyncCall'], $args);
+    }
+
+    /**
+     * Creates a new metric descriptor.
+     * The creation is executed asynchronously.
+     * User-created metric descriptors define
+     * [custom metrics](https://cloud.google.com/monitoring/custom-metrics).
+     * The metric descriptor is updated if it already exists,
+     * except that metric labels are never removed.
+     *
+     * The async variant is {@see MetricServiceClient::createMetricDescriptorAsync()} .
+     *
+     * @example samples/V3/MetricServiceClient/create_metric_descriptor.php
+     *
+     * @param CreateMetricDescriptorRequest $request     A request to house fields associated with the call.
+     * @param array                         $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return MetricDescriptor
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function createMetricDescriptor(CreateMetricDescriptorRequest $request, array $callOptions = []): MetricDescriptor
+    {
+        return $this->startApiCall('CreateMetricDescriptor', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Creates or adds data to one or more service time series. A service time
+     * series is a time series for a metric from a Google Cloud service. The
+     * response is empty if all time series in the request were written. If any
+     * time series could not be written, a corresponding failure message is
+     * included in the error response. This endpoint rejects writes to
+     * user-defined metrics.
+     * This method is only for use by Google Cloud services. Use
+     * [projects.timeSeries.create][google.monitoring.v3.MetricService.CreateTimeSeries]
+     * instead.
+     *
+     * The async variant is {@see MetricServiceClient::createServiceTimeSeriesAsync()}
+     * .
+     *
+     * @example samples/V3/MetricServiceClient/create_service_time_series.php
+     *
+     * @param CreateTimeSeriesRequest $request     A request to house fields associated with the call.
+     * @param array                   $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function createServiceTimeSeries(CreateTimeSeriesRequest $request, array $callOptions = []): void
+    {
+        $this->startApiCall('CreateServiceTimeSeries', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Creates or adds data to one or more time series.
+     * The response is empty if all time series in the request were written.
+     * If any time series could not be written, a corresponding failure message is
+     * included in the error response.
+     * This method does not support
+     * [resource locations constraint of an organization
+     * policy](https://cloud.google.com/resource-manager/docs/organization-policy/defining-locations#setting_the_organization_policy).
+     *
+     * The async variant is {@see MetricServiceClient::createTimeSeriesAsync()} .
+     *
+     * @example samples/V3/MetricServiceClient/create_time_series.php
+     *
+     * @param CreateTimeSeriesRequest $request     A request to house fields associated with the call.
+     * @param array                   $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function createTimeSeries(CreateTimeSeriesRequest $request, array $callOptions = []): void
+    {
+        $this->startApiCall('CreateTimeSeries', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Deletes a metric descriptor. Only user-created
+     * [custom metrics](https://cloud.google.com/monitoring/custom-metrics) can be
+     * deleted.
+     *
+     * The async variant is {@see MetricServiceClient::deleteMetricDescriptorAsync()} .
+     *
+     * @example samples/V3/MetricServiceClient/delete_metric_descriptor.php
+     *
+     * @param DeleteMetricDescriptorRequest $request     A request to house fields associated with the call.
+     * @param array                         $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function deleteMetricDescriptor(DeleteMetricDescriptorRequest $request, array $callOptions = []): void
+    {
+        $this->startApiCall('DeleteMetricDescriptor', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Gets a single metric descriptor.
+     *
+     * The async variant is {@see MetricServiceClient::getMetricDescriptorAsync()} .
+     *
+     * @example samples/V3/MetricServiceClient/get_metric_descriptor.php
+     *
+     * @param GetMetricDescriptorRequest $request     A request to house fields associated with the call.
+     * @param array                      $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return MetricDescriptor
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function getMetricDescriptor(GetMetricDescriptorRequest $request, array $callOptions = []): MetricDescriptor
+    {
+        return $this->startApiCall('GetMetricDescriptor', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Gets a single monitored resource descriptor.
+     *
+     * The async variant is
+     * {@see MetricServiceClient::getMonitoredResourceDescriptorAsync()} .
+     *
+     * @example samples/V3/MetricServiceClient/get_monitored_resource_descriptor.php
+     *
+     * @param GetMonitoredResourceDescriptorRequest $request     A request to house fields associated with the call.
+     * @param array                                 $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return MonitoredResourceDescriptor
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function getMonitoredResourceDescriptor(GetMonitoredResourceDescriptorRequest $request, array $callOptions = []): MonitoredResourceDescriptor
+    {
+        return $this->startApiCall('GetMonitoredResourceDescriptor', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Lists metric descriptors that match a filter.
+     *
+     * The async variant is {@see MetricServiceClient::listMetricDescriptorsAsync()} .
+     *
+     * @example samples/V3/MetricServiceClient/list_metric_descriptors.php
+     *
+     * @param ListMetricDescriptorsRequest $request     A request to house fields associated with the call.
+     * @param array                        $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return PagedListResponse
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function listMetricDescriptors(ListMetricDescriptorsRequest $request, array $callOptions = []): PagedListResponse
+    {
+        return $this->startApiCall('ListMetricDescriptors', $request, $callOptions);
+    }
+
+    /**
+     * Lists monitored resource descriptors that match a filter.
+     *
+     * The async variant is
+     * {@see MetricServiceClient::listMonitoredResourceDescriptorsAsync()} .
+     *
+     * @example samples/V3/MetricServiceClient/list_monitored_resource_descriptors.php
+     *
+     * @param ListMonitoredResourceDescriptorsRequest $request     A request to house fields associated with the call.
+     * @param array                                   $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return PagedListResponse
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function listMonitoredResourceDescriptors(ListMonitoredResourceDescriptorsRequest $request, array $callOptions = []): PagedListResponse
+    {
+        return $this->startApiCall('ListMonitoredResourceDescriptors', $request, $callOptions);
+    }
+
+    /**
+     * Lists time series that match a filter.
+     *
+     * The async variant is {@see MetricServiceClient::listTimeSeriesAsync()} .
+     *
+     * @example samples/V3/MetricServiceClient/list_time_series.php
+     *
+     * @param ListTimeSeriesRequest $request     A request to house fields associated with the call.
+     * @param array                 $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return PagedListResponse
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function listTimeSeries(ListTimeSeriesRequest $request, array $callOptions = []): PagedListResponse
+    {
+        return $this->startApiCall('ListTimeSeries', $request, $callOptions);
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/Client/NotificationChannelServiceClient.php b/owl-bot-staging/Monitoring/v3/src/V3/Client/NotificationChannelServiceClient.php
new file mode 100644
index 000000000000..581afdc21244
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/Client/NotificationChannelServiceClient.php
@@ -0,0 +1,683 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * Generated by gapic-generator-php from the file
+ * https://github.com/googleapis/googleapis/blob/master/google/monitoring/v3/notification_service.proto
+ * Updates to the above are reflected here through a refresh process.
+ */
+
+namespace Google\Cloud\Monitoring\V3\Client;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\GapicClientTrait;
+use Google\ApiCore\PagedListResponse;
+use Google\ApiCore\ResourceHelperTrait;
+use Google\ApiCore\RetrySettings;
+use Google\ApiCore\Transport\TransportInterface;
+use Google\ApiCore\ValidationException;
+use Google\Auth\FetchAuthTokenInterface;
+use Google\Cloud\Monitoring\V3\CreateNotificationChannelRequest;
+use Google\Cloud\Monitoring\V3\DeleteNotificationChannelRequest;
+use Google\Cloud\Monitoring\V3\GetNotificationChannelDescriptorRequest;
+use Google\Cloud\Monitoring\V3\GetNotificationChannelRequest;
+use Google\Cloud\Monitoring\V3\GetNotificationChannelVerificationCodeRequest;
+use Google\Cloud\Monitoring\V3\GetNotificationChannelVerificationCodeResponse;
+use Google\Cloud\Monitoring\V3\ListNotificationChannelDescriptorsRequest;
+use Google\Cloud\Monitoring\V3\ListNotificationChannelsRequest;
+use Google\Cloud\Monitoring\V3\NotificationChannel;
+use Google\Cloud\Monitoring\V3\NotificationChannelDescriptor;
+use Google\Cloud\Monitoring\V3\SendNotificationChannelVerificationCodeRequest;
+use Google\Cloud\Monitoring\V3\UpdateNotificationChannelRequest;
+use Google\Cloud\Monitoring\V3\VerifyNotificationChannelRequest;
+use GuzzleHttp\Promise\PromiseInterface;
+use Psr\Log\LoggerInterface;
+
+/**
+ * Service Description: The Notification Channel API provides access to configuration that
+ * controls how messages related to incidents are sent.
+ *
+ * This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods.
+ *
+ * Many parameters require resource names to be formatted in a particular way. To
+ * assist with these names, this class includes a format method for each type of
+ * name, and additionally a parseName method to extract the individual identifiers
+ * contained within formatted names that are returned by the API.
+ *
+ * @method PromiseInterface<NotificationChannel> createNotificationChannelAsync(CreateNotificationChannelRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<void> deleteNotificationChannelAsync(DeleteNotificationChannelRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<NotificationChannel> getNotificationChannelAsync(GetNotificationChannelRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<NotificationChannelDescriptor> getNotificationChannelDescriptorAsync(GetNotificationChannelDescriptorRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<GetNotificationChannelVerificationCodeResponse> getNotificationChannelVerificationCodeAsync(GetNotificationChannelVerificationCodeRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<PagedListResponse> listNotificationChannelDescriptorsAsync(ListNotificationChannelDescriptorsRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<PagedListResponse> listNotificationChannelsAsync(ListNotificationChannelsRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<void> sendNotificationChannelVerificationCodeAsync(SendNotificationChannelVerificationCodeRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<NotificationChannel> updateNotificationChannelAsync(UpdateNotificationChannelRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<NotificationChannel> verifyNotificationChannelAsync(VerifyNotificationChannelRequest $request, array $optionalArgs = [])
+ */
+final class NotificationChannelServiceClient
+{
+    use GapicClientTrait;
+    use ResourceHelperTrait;
+
+    /** The name of the service. */
+    private const SERVICE_NAME = 'google.monitoring.v3.NotificationChannelService';
+
+    /**
+     * The default address of the service.
+     *
+     * @deprecated SERVICE_ADDRESS_TEMPLATE should be used instead.
+     */
+    private const SERVICE_ADDRESS = 'monitoring.googleapis.com';
+
+    /** The address template of the service. */
+    private const SERVICE_ADDRESS_TEMPLATE = 'monitoring.UNIVERSE_DOMAIN';
+
+    /** The default port of the service. */
+    private const DEFAULT_SERVICE_PORT = 443;
+
+    /** The name of the code generator, to be included in the agent header. */
+    private const CODEGEN_NAME = 'gapic';
+
+    /** The default scopes required by the service. */
+    public static $serviceScopes = [
+        'https://www.googleapis.com/auth/cloud-platform',
+        'https://www.googleapis.com/auth/monitoring',
+        'https://www.googleapis.com/auth/monitoring.read',
+    ];
+
+    private static function getClientDefaults()
+    {
+        return [
+            'serviceName' => self::SERVICE_NAME,
+            'apiEndpoint' => self::SERVICE_ADDRESS . ':' . self::DEFAULT_SERVICE_PORT,
+            'clientConfig' => __DIR__ . '/../resources/notification_channel_service_client_config.json',
+            'descriptorsConfigPath' => __DIR__ . '/../resources/notification_channel_service_descriptor_config.php',
+            'gcpApiConfigPath' => __DIR__ . '/../resources/notification_channel_service_grpc_config.json',
+            'credentialsConfig' => [
+                'defaultScopes' => self::$serviceScopes,
+            ],
+            'transportConfig' => [
+                'rest' => [
+                    'restClientConfigPath' => __DIR__ . '/../resources/notification_channel_service_rest_client_config.php',
+                ],
+            ],
+        ];
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * folder_channel_descriptor resource.
+     *
+     * @param string $folder
+     * @param string $channelDescriptor
+     *
+     * @return string The formatted folder_channel_descriptor resource.
+     */
+    public static function folderChannelDescriptorName(string $folder, string $channelDescriptor): string
+    {
+        return self::getPathTemplate('folderChannelDescriptor')->render([
+            'folder' => $folder,
+            'channel_descriptor' => $channelDescriptor,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * folder_notification_channel resource.
+     *
+     * @param string $folder
+     * @param string $notificationChannel
+     *
+     * @return string The formatted folder_notification_channel resource.
+     */
+    public static function folderNotificationChannelName(string $folder, string $notificationChannel): string
+    {
+        return self::getPathTemplate('folderNotificationChannel')->render([
+            'folder' => $folder,
+            'notification_channel' => $notificationChannel,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * notification_channel resource.
+     *
+     * @param string $project
+     * @param string $notificationChannel
+     *
+     * @return string The formatted notification_channel resource.
+     */
+    public static function notificationChannelName(string $project, string $notificationChannel): string
+    {
+        return self::getPathTemplate('notificationChannel')->render([
+            'project' => $project,
+            'notification_channel' => $notificationChannel,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * notification_channel_descriptor resource.
+     *
+     * @param string $project
+     * @param string $channelDescriptor
+     *
+     * @return string The formatted notification_channel_descriptor resource.
+     */
+    public static function notificationChannelDescriptorName(string $project, string $channelDescriptor): string
+    {
+        return self::getPathTemplate('notificationChannelDescriptor')->render([
+            'project' => $project,
+            'channel_descriptor' => $channelDescriptor,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * organization_channel_descriptor resource.
+     *
+     * @param string $organization
+     * @param string $channelDescriptor
+     *
+     * @return string The formatted organization_channel_descriptor resource.
+     */
+    public static function organizationChannelDescriptorName(string $organization, string $channelDescriptor): string
+    {
+        return self::getPathTemplate('organizationChannelDescriptor')->render([
+            'organization' => $organization,
+            'channel_descriptor' => $channelDescriptor,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * organization_notification_channel resource.
+     *
+     * @param string $organization
+     * @param string $notificationChannel
+     *
+     * @return string The formatted organization_notification_channel resource.
+     */
+    public static function organizationNotificationChannelName(string $organization, string $notificationChannel): string
+    {
+        return self::getPathTemplate('organizationNotificationChannel')->render([
+            'organization' => $organization,
+            'notification_channel' => $notificationChannel,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * project_channel_descriptor resource.
+     *
+     * @param string $project
+     * @param string $channelDescriptor
+     *
+     * @return string The formatted project_channel_descriptor resource.
+     */
+    public static function projectChannelDescriptorName(string $project, string $channelDescriptor): string
+    {
+        return self::getPathTemplate('projectChannelDescriptor')->render([
+            'project' => $project,
+            'channel_descriptor' => $channelDescriptor,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * project_notification_channel resource.
+     *
+     * @param string $project
+     * @param string $notificationChannel
+     *
+     * @return string The formatted project_notification_channel resource.
+     */
+    public static function projectNotificationChannelName(string $project, string $notificationChannel): string
+    {
+        return self::getPathTemplate('projectNotificationChannel')->render([
+            'project' => $project,
+            'notification_channel' => $notificationChannel,
+        ]);
+    }
+
+    /**
+     * Parses a formatted name string and returns an associative array of the components in the name.
+     * The following name formats are supported:
+     * Template: Pattern
+     * - folderChannelDescriptor: folders/{folder}/notificationChannelDescriptors/{channel_descriptor}
+     * - folderNotificationChannel: folders/{folder}/notificationChannels/{notification_channel}
+     * - notificationChannel: projects/{project}/notificationChannels/{notification_channel}
+     * - notificationChannelDescriptor: projects/{project}/notificationChannelDescriptors/{channel_descriptor}
+     * - organizationChannelDescriptor: organizations/{organization}/notificationChannelDescriptors/{channel_descriptor}
+     * - organizationNotificationChannel: organizations/{organization}/notificationChannels/{notification_channel}
+     * - projectChannelDescriptor: projects/{project}/notificationChannelDescriptors/{channel_descriptor}
+     * - projectNotificationChannel: projects/{project}/notificationChannels/{notification_channel}
+     *
+     * The optional $template argument can be supplied to specify a particular pattern,
+     * and must match one of the templates listed above. If no $template argument is
+     * provided, or if the $template argument does not match one of the templates
+     * listed, then parseName will check each of the supported templates, and return
+     * the first match.
+     *
+     * @param string  $formattedName The formatted name string
+     * @param ?string $template      Optional name of template to match
+     *
+     * @return array An associative array from name component IDs to component values.
+     *
+     * @throws ValidationException If $formattedName could not be matched.
+     */
+    public static function parseName(string $formattedName, ?string $template = null): array
+    {
+        return self::parseFormattedName($formattedName, $template);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $options {
+     *     Optional. Options for configuring the service API wrapper.
+     *
+     *     @type string $apiEndpoint
+     *           The address of the API remote host. May optionally include the port, formatted
+     *           as "<uri>:<port>". Default 'monitoring.googleapis.com:443'.
+     *     @type string|array|FetchAuthTokenInterface|CredentialsWrapper $credentials
+     *           The credentials to be used by the client to authorize API calls. This option
+     *           accepts either a path to a credentials file, or a decoded credentials file as a
+     *           PHP array.
+     *           *Advanced usage*: In addition, this option can also accept a pre-constructed
+     *           {@see \Google\Auth\FetchAuthTokenInterface} object or
+     *           {@see \Google\ApiCore\CredentialsWrapper} object. Note that when one of these
+     *           objects are provided, any settings in $credentialsConfig will be ignored.
+     *     @type array $credentialsConfig
+     *           Options used to configure credentials, including auth token caching, for the
+     *           client. For a full list of supporting configuration options, see
+     *           {@see \Google\ApiCore\CredentialsWrapper::build()} .
+     *     @type bool $disableRetries
+     *           Determines whether or not retries defined by the client configuration should be
+     *           disabled. Defaults to `false`.
+     *     @type string|array $clientConfig
+     *           Client method configuration, including retry settings. This option can be either
+     *           a path to a JSON file, or a PHP array containing the decoded JSON data. By
+     *           default this settings points to the default client config file, which is
+     *           provided in the resources folder.
+     *     @type string|TransportInterface $transport
+     *           The transport used for executing network requests. May be either the string
+     *           `rest` or `grpc`. Defaults to `grpc` if gRPC support is detected on the system.
+     *           *Advanced usage*: Additionally, it is possible to pass in an already
+     *           instantiated {@see \Google\ApiCore\Transport\TransportInterface} object. Note
+     *           that when this object is provided, any settings in $transportConfig, and any
+     *           $apiEndpoint setting, will be ignored.
+     *     @type array $transportConfig
+     *           Configuration options that will be used to construct the transport. Options for
+     *           each supported transport type should be passed in a key for that transport. For
+     *           example:
+     *           $transportConfig = [
+     *               'grpc' => [...],
+     *               'rest' => [...],
+     *           ];
+     *           See the {@see \Google\ApiCore\Transport\GrpcTransport::build()} and
+     *           {@see \Google\ApiCore\Transport\RestTransport::build()} methods for the
+     *           supported options.
+     *     @type callable $clientCertSource
+     *           A callable which returns the client cert as a string. This can be used to
+     *           provide a certificate and private key to the transport layer for mTLS.
+     *     @type false|LoggerInterface $logger
+     *           A PSR-3 compliant logger. If set to false, logging is disabled, ignoring the
+     *           'GOOGLE_SDK_PHP_LOGGING' environment flag
+     * }
+     *
+     * @throws ValidationException
+     */
+    public function __construct(array $options = [])
+    {
+        $clientOptions = $this->buildClientOptions($options);
+        $this->setClientOptions($clientOptions);
+    }
+
+    /** Handles execution of the async variants for each documented method. */
+    public function __call($method, $args)
+    {
+        if (substr($method, -5) !== 'Async') {
+            trigger_error('Call to undefined method ' . __CLASS__ . "::$method()", E_USER_ERROR);
+        }
+
+        array_unshift($args, substr($method, 0, -5));
+        return call_user_func_array([$this, 'startAsyncCall'], $args);
+    }
+
+    /**
+     * Creates a new notification channel, representing a single notification
+     * endpoint such as an email address, SMS number, or PagerDuty service.
+     *
+     * Design your application to single-thread API calls that modify the state of
+     * notification channels in a single project. This includes calls to
+     * CreateNotificationChannel, DeleteNotificationChannel and
+     * UpdateNotificationChannel.
+     *
+     * The async variant is
+     * {@see NotificationChannelServiceClient::createNotificationChannelAsync()} .
+     *
+     * @example samples/V3/NotificationChannelServiceClient/create_notification_channel.php
+     *
+     * @param CreateNotificationChannelRequest $request     A request to house fields associated with the call.
+     * @param array                            $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return NotificationChannel
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function createNotificationChannel(CreateNotificationChannelRequest $request, array $callOptions = []): NotificationChannel
+    {
+        return $this->startApiCall('CreateNotificationChannel', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Deletes a notification channel.
+     *
+     * Design your application to single-thread API calls that modify the state of
+     * notification channels in a single project. This includes calls to
+     * CreateNotificationChannel, DeleteNotificationChannel and
+     * UpdateNotificationChannel.
+     *
+     * The async variant is
+     * {@see NotificationChannelServiceClient::deleteNotificationChannelAsync()} .
+     *
+     * @example samples/V3/NotificationChannelServiceClient/delete_notification_channel.php
+     *
+     * @param DeleteNotificationChannelRequest $request     A request to house fields associated with the call.
+     * @param array                            $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function deleteNotificationChannel(DeleteNotificationChannelRequest $request, array $callOptions = []): void
+    {
+        $this->startApiCall('DeleteNotificationChannel', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Gets a single notification channel. The channel includes the relevant
+     * configuration details with which the channel was created. However, the
+     * response may truncate or omit passwords, API keys, or other private key
+     * matter and thus the response may not be 100% identical to the information
+     * that was supplied in the call to the create method.
+     *
+     * The async variant is
+     * {@see NotificationChannelServiceClient::getNotificationChannelAsync()} .
+     *
+     * @example samples/V3/NotificationChannelServiceClient/get_notification_channel.php
+     *
+     * @param GetNotificationChannelRequest $request     A request to house fields associated with the call.
+     * @param array                         $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return NotificationChannel
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function getNotificationChannel(GetNotificationChannelRequest $request, array $callOptions = []): NotificationChannel
+    {
+        return $this->startApiCall('GetNotificationChannel', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Gets a single channel descriptor. The descriptor indicates which fields
+     * are expected / permitted for a notification channel of the given type.
+     *
+     * The async variant is
+     * {@see NotificationChannelServiceClient::getNotificationChannelDescriptorAsync()}
+     * .
+     *
+     * @example samples/V3/NotificationChannelServiceClient/get_notification_channel_descriptor.php
+     *
+     * @param GetNotificationChannelDescriptorRequest $request     A request to house fields associated with the call.
+     * @param array                                   $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return NotificationChannelDescriptor
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function getNotificationChannelDescriptor(GetNotificationChannelDescriptorRequest $request, array $callOptions = []): NotificationChannelDescriptor
+    {
+        return $this->startApiCall('GetNotificationChannelDescriptor', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Requests a verification code for an already verified channel that can then
+     * be used in a call to VerifyNotificationChannel() on a different channel
+     * with an equivalent identity in the same or in a different project. This
+     * makes it possible to copy a channel between projects without requiring
+     * manual reverification of the channel. If the channel is not in the
+     * verified state, this method will fail (in other words, this may only be
+     * used if the SendNotificationChannelVerificationCode and
+     * VerifyNotificationChannel paths have already been used to put the given
+     * channel into the verified state).
+     *
+     * There is no guarantee that the verification codes returned by this method
+     * will be of a similar structure or form as the ones that are delivered
+     * to the channel via SendNotificationChannelVerificationCode; while
+     * VerifyNotificationChannel() will recognize both the codes delivered via
+     * SendNotificationChannelVerificationCode() and returned from
+     * GetNotificationChannelVerificationCode(), it is typically the case that
+     * the verification codes delivered via
+     * SendNotificationChannelVerificationCode() will be shorter and also
+     * have a shorter expiration (e.g. codes such as "G-123456") whereas
+     * GetVerificationCode() will typically return a much longer, websafe base
+     * 64 encoded string that has a longer expiration time.
+     *
+     * The async variant is
+     * {@see NotificationChannelServiceClient::getNotificationChannelVerificationCodeAsync()}
+     * .
+     *
+     * @example samples/V3/NotificationChannelServiceClient/get_notification_channel_verification_code.php
+     *
+     * @param GetNotificationChannelVerificationCodeRequest $request     A request to house fields associated with the call.
+     * @param array                                         $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return GetNotificationChannelVerificationCodeResponse
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function getNotificationChannelVerificationCode(GetNotificationChannelVerificationCodeRequest $request, array $callOptions = []): GetNotificationChannelVerificationCodeResponse
+    {
+        return $this->startApiCall('GetNotificationChannelVerificationCode', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Lists the descriptors for supported channel types. The use of descriptors
+     * makes it possible for new channel types to be dynamically added.
+     *
+     * The async variant is
+     * {@see NotificationChannelServiceClient::listNotificationChannelDescriptorsAsync()}
+     * .
+     *
+     * @example samples/V3/NotificationChannelServiceClient/list_notification_channel_descriptors.php
+     *
+     * @param ListNotificationChannelDescriptorsRequest $request     A request to house fields associated with the call.
+     * @param array                                     $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return PagedListResponse
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function listNotificationChannelDescriptors(ListNotificationChannelDescriptorsRequest $request, array $callOptions = []): PagedListResponse
+    {
+        return $this->startApiCall('ListNotificationChannelDescriptors', $request, $callOptions);
+    }
+
+    /**
+     * Lists the notification channels that have been created for the project.
+     * To list the types of notification channels that are supported, use
+     * the `ListNotificationChannelDescriptors` method.
+     *
+     * The async variant is
+     * {@see NotificationChannelServiceClient::listNotificationChannelsAsync()} .
+     *
+     * @example samples/V3/NotificationChannelServiceClient/list_notification_channels.php
+     *
+     * @param ListNotificationChannelsRequest $request     A request to house fields associated with the call.
+     * @param array                           $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return PagedListResponse
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function listNotificationChannels(ListNotificationChannelsRequest $request, array $callOptions = []): PagedListResponse
+    {
+        return $this->startApiCall('ListNotificationChannels', $request, $callOptions);
+    }
+
+    /**
+     * Causes a verification code to be delivered to the channel. The code
+     * can then be supplied in `VerifyNotificationChannel` to verify the channel.
+     *
+     * The async variant is
+     * {@see NotificationChannelServiceClient::sendNotificationChannelVerificationCodeAsync()}
+     * .
+     *
+     * @example samples/V3/NotificationChannelServiceClient/send_notification_channel_verification_code.php
+     *
+     * @param SendNotificationChannelVerificationCodeRequest $request     A request to house fields associated with the call.
+     * @param array                                          $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function sendNotificationChannelVerificationCode(SendNotificationChannelVerificationCodeRequest $request, array $callOptions = []): void
+    {
+        $this->startApiCall('SendNotificationChannelVerificationCode', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Updates a notification channel. Fields not specified in the field mask
+     * remain unchanged.
+     *
+     * Design your application to single-thread API calls that modify the state of
+     * notification channels in a single project. This includes calls to
+     * CreateNotificationChannel, DeleteNotificationChannel and
+     * UpdateNotificationChannel.
+     *
+     * The async variant is
+     * {@see NotificationChannelServiceClient::updateNotificationChannelAsync()} .
+     *
+     * @example samples/V3/NotificationChannelServiceClient/update_notification_channel.php
+     *
+     * @param UpdateNotificationChannelRequest $request     A request to house fields associated with the call.
+     * @param array                            $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return NotificationChannel
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function updateNotificationChannel(UpdateNotificationChannelRequest $request, array $callOptions = []): NotificationChannel
+    {
+        return $this->startApiCall('UpdateNotificationChannel', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Verifies a `NotificationChannel` by proving receipt of the code
+     * delivered to the channel as a result of calling
+     * `SendNotificationChannelVerificationCode`.
+     *
+     * The async variant is
+     * {@see NotificationChannelServiceClient::verifyNotificationChannelAsync()} .
+     *
+     * @example samples/V3/NotificationChannelServiceClient/verify_notification_channel.php
+     *
+     * @param VerifyNotificationChannelRequest $request     A request to house fields associated with the call.
+     * @param array                            $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return NotificationChannel
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function verifyNotificationChannel(VerifyNotificationChannelRequest $request, array $callOptions = []): NotificationChannel
+    {
+        return $this->startApiCall('VerifyNotificationChannel', $request, $callOptions)->wait();
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/Client/QueryServiceClient.php b/owl-bot-staging/Monitoring/v3/src/V3/Client/QueryServiceClient.php
new file mode 100644
index 000000000000..25672dfd529d
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/Client/QueryServiceClient.php
@@ -0,0 +1,202 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * Generated by gapic-generator-php from the file
+ * https://github.com/googleapis/googleapis/blob/master/google/monitoring/v3/query_service.proto
+ * Updates to the above are reflected here through a refresh process.
+ */
+
+namespace Google\Cloud\Monitoring\V3\Client;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\GapicClientTrait;
+use Google\ApiCore\PagedListResponse;
+use Google\ApiCore\RetrySettings;
+use Google\ApiCore\Transport\TransportInterface;
+use Google\ApiCore\ValidationException;
+use Google\Auth\FetchAuthTokenInterface;
+use Google\Cloud\Monitoring\V3\QueryTimeSeriesRequest;
+use GuzzleHttp\Promise\PromiseInterface;
+use Psr\Log\LoggerInterface;
+
+/**
+ * Service Description: The QueryService API is used to manage time series data in Cloud
+ * Monitoring. Time series data is a collection of data points that describes
+ * the time-varying values of a metric.
+ *
+ * This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods.
+ *
+ * @method PromiseInterface<PagedListResponse> queryTimeSeriesAsync(QueryTimeSeriesRequest $request, array $optionalArgs = [])
+ */
+final class QueryServiceClient
+{
+    use GapicClientTrait;
+
+    /** The name of the service. */
+    private const SERVICE_NAME = 'google.monitoring.v3.QueryService';
+
+    /**
+     * The default address of the service.
+     *
+     * @deprecated SERVICE_ADDRESS_TEMPLATE should be used instead.
+     */
+    private const SERVICE_ADDRESS = 'monitoring.googleapis.com';
+
+    /** The address template of the service. */
+    private const SERVICE_ADDRESS_TEMPLATE = 'monitoring.UNIVERSE_DOMAIN';
+
+    /** The default port of the service. */
+    private const DEFAULT_SERVICE_PORT = 443;
+
+    /** The name of the code generator, to be included in the agent header. */
+    private const CODEGEN_NAME = 'gapic';
+
+    /** The default scopes required by the service. */
+    public static $serviceScopes = [
+        'https://www.googleapis.com/auth/cloud-platform',
+        'https://www.googleapis.com/auth/monitoring',
+        'https://www.googleapis.com/auth/monitoring.read',
+    ];
+
+    private static function getClientDefaults()
+    {
+        return [
+            'serviceName' => self::SERVICE_NAME,
+            'apiEndpoint' => self::SERVICE_ADDRESS . ':' . self::DEFAULT_SERVICE_PORT,
+            'clientConfig' => __DIR__ . '/../resources/query_service_client_config.json',
+            'descriptorsConfigPath' => __DIR__ . '/../resources/query_service_descriptor_config.php',
+            'gcpApiConfigPath' => __DIR__ . '/../resources/query_service_grpc_config.json',
+            'credentialsConfig' => [
+                'defaultScopes' => self::$serviceScopes,
+            ],
+            'transportConfig' => [
+                'rest' => [
+                    'restClientConfigPath' => __DIR__ . '/../resources/query_service_rest_client_config.php',
+                ],
+            ],
+        ];
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $options {
+     *     Optional. Options for configuring the service API wrapper.
+     *
+     *     @type string $apiEndpoint
+     *           The address of the API remote host. May optionally include the port, formatted
+     *           as "<uri>:<port>". Default 'monitoring.googleapis.com:443'.
+     *     @type string|array|FetchAuthTokenInterface|CredentialsWrapper $credentials
+     *           The credentials to be used by the client to authorize API calls. This option
+     *           accepts either a path to a credentials file, or a decoded credentials file as a
+     *           PHP array.
+     *           *Advanced usage*: In addition, this option can also accept a pre-constructed
+     *           {@see \Google\Auth\FetchAuthTokenInterface} object or
+     *           {@see \Google\ApiCore\CredentialsWrapper} object. Note that when one of these
+     *           objects are provided, any settings in $credentialsConfig will be ignored.
+     *     @type array $credentialsConfig
+     *           Options used to configure credentials, including auth token caching, for the
+     *           client. For a full list of supporting configuration options, see
+     *           {@see \Google\ApiCore\CredentialsWrapper::build()} .
+     *     @type bool $disableRetries
+     *           Determines whether or not retries defined by the client configuration should be
+     *           disabled. Defaults to `false`.
+     *     @type string|array $clientConfig
+     *           Client method configuration, including retry settings. This option can be either
+     *           a path to a JSON file, or a PHP array containing the decoded JSON data. By
+     *           default this settings points to the default client config file, which is
+     *           provided in the resources folder.
+     *     @type string|TransportInterface $transport
+     *           The transport used for executing network requests. May be either the string
+     *           `rest` or `grpc`. Defaults to `grpc` if gRPC support is detected on the system.
+     *           *Advanced usage*: Additionally, it is possible to pass in an already
+     *           instantiated {@see \Google\ApiCore\Transport\TransportInterface} object. Note
+     *           that when this object is provided, any settings in $transportConfig, and any
+     *           $apiEndpoint setting, will be ignored.
+     *     @type array $transportConfig
+     *           Configuration options that will be used to construct the transport. Options for
+     *           each supported transport type should be passed in a key for that transport. For
+     *           example:
+     *           $transportConfig = [
+     *               'grpc' => [...],
+     *               'rest' => [...],
+     *           ];
+     *           See the {@see \Google\ApiCore\Transport\GrpcTransport::build()} and
+     *           {@see \Google\ApiCore\Transport\RestTransport::build()} methods for the
+     *           supported options.
+     *     @type callable $clientCertSource
+     *           A callable which returns the client cert as a string. This can be used to
+     *           provide a certificate and private key to the transport layer for mTLS.
+     *     @type false|LoggerInterface $logger
+     *           A PSR-3 compliant logger. If set to false, logging is disabled, ignoring the
+     *           'GOOGLE_SDK_PHP_LOGGING' environment flag
+     * }
+     *
+     * @throws ValidationException
+     */
+    public function __construct(array $options = [])
+    {
+        $clientOptions = $this->buildClientOptions($options);
+        $this->setClientOptions($clientOptions);
+    }
+
+    /** Handles execution of the async variants for each documented method. */
+    public function __call($method, $args)
+    {
+        if (substr($method, -5) !== 'Async') {
+            trigger_error('Call to undefined method ' . __CLASS__ . "::$method()", E_USER_ERROR);
+        }
+
+        array_unshift($args, substr($method, 0, -5));
+        return call_user_func_array([$this, 'startAsyncCall'], $args);
+    }
+
+    /**
+     * Queries time series by using Monitoring Query Language (MQL). We recommend
+     * using PromQL instead of MQL. For more information about the status of MQL,
+     * see the [MQL deprecation
+     * notice](https://cloud.google.com/stackdriver/docs/deprecations/mql).
+     *
+     * The async variant is {@see QueryServiceClient::queryTimeSeriesAsync()} .
+     *
+     * @example samples/V3/QueryServiceClient/query_time_series.php
+     *
+     * @param QueryTimeSeriesRequest $request     A request to house fields associated with the call.
+     * @param array                  $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return PagedListResponse
+     *
+     * @throws ApiException Thrown if the API call fails.
+     *
+     * @deprecated This method will be removed in the next major version update.
+     */
+    public function queryTimeSeries(QueryTimeSeriesRequest $request, array $callOptions = []): PagedListResponse
+    {
+        return $this->startApiCall('QueryTimeSeries', $request, $callOptions);
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/Client/ServiceMonitoringServiceClient.php b/owl-bot-staging/Monitoring/v3/src/V3/Client/ServiceMonitoringServiceClient.php
new file mode 100644
index 000000000000..202598491b2c
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/Client/ServiceMonitoringServiceClient.php
@@ -0,0 +1,639 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * Generated by gapic-generator-php from the file
+ * https://github.com/googleapis/googleapis/blob/master/google/monitoring/v3/service_service.proto
+ * Updates to the above are reflected here through a refresh process.
+ */
+
+namespace Google\Cloud\Monitoring\V3\Client;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\GapicClientTrait;
+use Google\ApiCore\PagedListResponse;
+use Google\ApiCore\ResourceHelperTrait;
+use Google\ApiCore\RetrySettings;
+use Google\ApiCore\Transport\TransportInterface;
+use Google\ApiCore\ValidationException;
+use Google\Auth\FetchAuthTokenInterface;
+use Google\Cloud\Monitoring\V3\CreateServiceLevelObjectiveRequest;
+use Google\Cloud\Monitoring\V3\CreateServiceRequest;
+use Google\Cloud\Monitoring\V3\DeleteServiceLevelObjectiveRequest;
+use Google\Cloud\Monitoring\V3\DeleteServiceRequest;
+use Google\Cloud\Monitoring\V3\GetServiceLevelObjectiveRequest;
+use Google\Cloud\Monitoring\V3\GetServiceRequest;
+use Google\Cloud\Monitoring\V3\ListServiceLevelObjectivesRequest;
+use Google\Cloud\Monitoring\V3\ListServicesRequest;
+use Google\Cloud\Monitoring\V3\Service;
+use Google\Cloud\Monitoring\V3\ServiceLevelObjective;
+use Google\Cloud\Monitoring\V3\UpdateServiceLevelObjectiveRequest;
+use Google\Cloud\Monitoring\V3\UpdateServiceRequest;
+use GuzzleHttp\Promise\PromiseInterface;
+use Psr\Log\LoggerInterface;
+
+/**
+ * Service Description: The Cloud Monitoring Service-Oriented Monitoring API has endpoints for
+ * managing and querying aspects of a Metrics Scope's services. These include
+ * the `Service`'s monitored resources, its Service-Level Objectives, and a
+ * taxonomy of categorized Health Metrics.
+ *
+ * This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods.
+ *
+ * Many parameters require resource names to be formatted in a particular way. To
+ * assist with these names, this class includes a format method for each type of
+ * name, and additionally a parseName method to extract the individual identifiers
+ * contained within formatted names that are returned by the API.
+ *
+ * @method PromiseInterface<Service> createServiceAsync(CreateServiceRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<ServiceLevelObjective> createServiceLevelObjectiveAsync(CreateServiceLevelObjectiveRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<void> deleteServiceAsync(DeleteServiceRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<void> deleteServiceLevelObjectiveAsync(DeleteServiceLevelObjectiveRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<Service> getServiceAsync(GetServiceRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<ServiceLevelObjective> getServiceLevelObjectiveAsync(GetServiceLevelObjectiveRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<PagedListResponse> listServiceLevelObjectivesAsync(ListServiceLevelObjectivesRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<PagedListResponse> listServicesAsync(ListServicesRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<Service> updateServiceAsync(UpdateServiceRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<ServiceLevelObjective> updateServiceLevelObjectiveAsync(UpdateServiceLevelObjectiveRequest $request, array $optionalArgs = [])
+ */
+final class ServiceMonitoringServiceClient
+{
+    use GapicClientTrait;
+    use ResourceHelperTrait;
+
+    /** The name of the service. */
+    private const SERVICE_NAME = 'google.monitoring.v3.ServiceMonitoringService';
+
+    /**
+     * The default address of the service.
+     *
+     * @deprecated SERVICE_ADDRESS_TEMPLATE should be used instead.
+     */
+    private const SERVICE_ADDRESS = 'monitoring.googleapis.com';
+
+    /** The address template of the service. */
+    private const SERVICE_ADDRESS_TEMPLATE = 'monitoring.UNIVERSE_DOMAIN';
+
+    /** The default port of the service. */
+    private const DEFAULT_SERVICE_PORT = 443;
+
+    /** The name of the code generator, to be included in the agent header. */
+    private const CODEGEN_NAME = 'gapic';
+
+    /** The default scopes required by the service. */
+    public static $serviceScopes = [
+        'https://www.googleapis.com/auth/cloud-platform',
+        'https://www.googleapis.com/auth/monitoring',
+        'https://www.googleapis.com/auth/monitoring.read',
+    ];
+
+    private static function getClientDefaults()
+    {
+        return [
+            'serviceName' => self::SERVICE_NAME,
+            'apiEndpoint' => self::SERVICE_ADDRESS . ':' . self::DEFAULT_SERVICE_PORT,
+            'clientConfig' => __DIR__ . '/../resources/service_monitoring_service_client_config.json',
+            'descriptorsConfigPath' => __DIR__ . '/../resources/service_monitoring_service_descriptor_config.php',
+            'gcpApiConfigPath' => __DIR__ . '/../resources/service_monitoring_service_grpc_config.json',
+            'credentialsConfig' => [
+                'defaultScopes' => self::$serviceScopes,
+            ],
+            'transportConfig' => [
+                'rest' => [
+                    'restClientConfigPath' => __DIR__ . '/../resources/service_monitoring_service_rest_client_config.php',
+                ],
+            ],
+        ];
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * folder_service resource.
+     *
+     * @param string $folder
+     * @param string $service
+     *
+     * @return string The formatted folder_service resource.
+     */
+    public static function folderServiceName(string $folder, string $service): string
+    {
+        return self::getPathTemplate('folderService')->render([
+            'folder' => $folder,
+            'service' => $service,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * folder_service_service_level_objective resource.
+     *
+     * @param string $folder
+     * @param string $service
+     * @param string $serviceLevelObjective
+     *
+     * @return string The formatted folder_service_service_level_objective resource.
+     */
+    public static function folderServiceServiceLevelObjectiveName(string $folder, string $service, string $serviceLevelObjective): string
+    {
+        return self::getPathTemplate('folderServiceServiceLevelObjective')->render([
+            'folder' => $folder,
+            'service' => $service,
+            'service_level_objective' => $serviceLevelObjective,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * organization_service resource.
+     *
+     * @param string $organization
+     * @param string $service
+     *
+     * @return string The formatted organization_service resource.
+     */
+    public static function organizationServiceName(string $organization, string $service): string
+    {
+        return self::getPathTemplate('organizationService')->render([
+            'organization' => $organization,
+            'service' => $service,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * organization_service_service_level_objective resource.
+     *
+     * @param string $organization
+     * @param string $service
+     * @param string $serviceLevelObjective
+     *
+     * @return string The formatted organization_service_service_level_objective resource.
+     */
+    public static function organizationServiceServiceLevelObjectiveName(string $organization, string $service, string $serviceLevelObjective): string
+    {
+        return self::getPathTemplate('organizationServiceServiceLevelObjective')->render([
+            'organization' => $organization,
+            'service' => $service,
+            'service_level_objective' => $serviceLevelObjective,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * project_service resource.
+     *
+     * @param string $project
+     * @param string $service
+     *
+     * @return string The formatted project_service resource.
+     */
+    public static function projectServiceName(string $project, string $service): string
+    {
+        return self::getPathTemplate('projectService')->render([
+            'project' => $project,
+            'service' => $service,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * project_service_service_level_objective resource.
+     *
+     * @param string $project
+     * @param string $service
+     * @param string $serviceLevelObjective
+     *
+     * @return string The formatted project_service_service_level_objective resource.
+     */
+    public static function projectServiceServiceLevelObjectiveName(string $project, string $service, string $serviceLevelObjective): string
+    {
+        return self::getPathTemplate('projectServiceServiceLevelObjective')->render([
+            'project' => $project,
+            'service' => $service,
+            'service_level_objective' => $serviceLevelObjective,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a service
+     * resource.
+     *
+     * @param string $project
+     * @param string $service
+     *
+     * @return string The formatted service resource.
+     */
+    public static function serviceName(string $project, string $service): string
+    {
+        return self::getPathTemplate('service')->render([
+            'project' => $project,
+            'service' => $service,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * service_level_objective resource.
+     *
+     * @param string $project
+     * @param string $service
+     * @param string $serviceLevelObjective
+     *
+     * @return string The formatted service_level_objective resource.
+     */
+    public static function serviceLevelObjectiveName(string $project, string $service, string $serviceLevelObjective): string
+    {
+        return self::getPathTemplate('serviceLevelObjective')->render([
+            'project' => $project,
+            'service' => $service,
+            'service_level_objective' => $serviceLevelObjective,
+        ]);
+    }
+
+    /**
+     * Parses a formatted name string and returns an associative array of the components in the name.
+     * The following name formats are supported:
+     * Template: Pattern
+     * - folderService: folders/{folder}/services/{service}
+     * - folderServiceServiceLevelObjective: folders/{folder}/services/{service}/serviceLevelObjectives/{service_level_objective}
+     * - organizationService: organizations/{organization}/services/{service}
+     * - organizationServiceServiceLevelObjective: organizations/{organization}/services/{service}/serviceLevelObjectives/{service_level_objective}
+     * - projectService: projects/{project}/services/{service}
+     * - projectServiceServiceLevelObjective: projects/{project}/services/{service}/serviceLevelObjectives/{service_level_objective}
+     * - service: projects/{project}/services/{service}
+     * - serviceLevelObjective: projects/{project}/services/{service}/serviceLevelObjectives/{service_level_objective}
+     *
+     * The optional $template argument can be supplied to specify a particular pattern,
+     * and must match one of the templates listed above. If no $template argument is
+     * provided, or if the $template argument does not match one of the templates
+     * listed, then parseName will check each of the supported templates, and return
+     * the first match.
+     *
+     * @param string  $formattedName The formatted name string
+     * @param ?string $template      Optional name of template to match
+     *
+     * @return array An associative array from name component IDs to component values.
+     *
+     * @throws ValidationException If $formattedName could not be matched.
+     */
+    public static function parseName(string $formattedName, ?string $template = null): array
+    {
+        return self::parseFormattedName($formattedName, $template);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $options {
+     *     Optional. Options for configuring the service API wrapper.
+     *
+     *     @type string $apiEndpoint
+     *           The address of the API remote host. May optionally include the port, formatted
+     *           as "<uri>:<port>". Default 'monitoring.googleapis.com:443'.
+     *     @type string|array|FetchAuthTokenInterface|CredentialsWrapper $credentials
+     *           The credentials to be used by the client to authorize API calls. This option
+     *           accepts either a path to a credentials file, or a decoded credentials file as a
+     *           PHP array.
+     *           *Advanced usage*: In addition, this option can also accept a pre-constructed
+     *           {@see \Google\Auth\FetchAuthTokenInterface} object or
+     *           {@see \Google\ApiCore\CredentialsWrapper} object. Note that when one of these
+     *           objects are provided, any settings in $credentialsConfig will be ignored.
+     *     @type array $credentialsConfig
+     *           Options used to configure credentials, including auth token caching, for the
+     *           client. For a full list of supporting configuration options, see
+     *           {@see \Google\ApiCore\CredentialsWrapper::build()} .
+     *     @type bool $disableRetries
+     *           Determines whether or not retries defined by the client configuration should be
+     *           disabled. Defaults to `false`.
+     *     @type string|array $clientConfig
+     *           Client method configuration, including retry settings. This option can be either
+     *           a path to a JSON file, or a PHP array containing the decoded JSON data. By
+     *           default this settings points to the default client config file, which is
+     *           provided in the resources folder.
+     *     @type string|TransportInterface $transport
+     *           The transport used for executing network requests. May be either the string
+     *           `rest` or `grpc`. Defaults to `grpc` if gRPC support is detected on the system.
+     *           *Advanced usage*: Additionally, it is possible to pass in an already
+     *           instantiated {@see \Google\ApiCore\Transport\TransportInterface} object. Note
+     *           that when this object is provided, any settings in $transportConfig, and any
+     *           $apiEndpoint setting, will be ignored.
+     *     @type array $transportConfig
+     *           Configuration options that will be used to construct the transport. Options for
+     *           each supported transport type should be passed in a key for that transport. For
+     *           example:
+     *           $transportConfig = [
+     *               'grpc' => [...],
+     *               'rest' => [...],
+     *           ];
+     *           See the {@see \Google\ApiCore\Transport\GrpcTransport::build()} and
+     *           {@see \Google\ApiCore\Transport\RestTransport::build()} methods for the
+     *           supported options.
+     *     @type callable $clientCertSource
+     *           A callable which returns the client cert as a string. This can be used to
+     *           provide a certificate and private key to the transport layer for mTLS.
+     *     @type false|LoggerInterface $logger
+     *           A PSR-3 compliant logger. If set to false, logging is disabled, ignoring the
+     *           'GOOGLE_SDK_PHP_LOGGING' environment flag
+     * }
+     *
+     * @throws ValidationException
+     */
+    public function __construct(array $options = [])
+    {
+        $clientOptions = $this->buildClientOptions($options);
+        $this->setClientOptions($clientOptions);
+    }
+
+    /** Handles execution of the async variants for each documented method. */
+    public function __call($method, $args)
+    {
+        if (substr($method, -5) !== 'Async') {
+            trigger_error('Call to undefined method ' . __CLASS__ . "::$method()", E_USER_ERROR);
+        }
+
+        array_unshift($args, substr($method, 0, -5));
+        return call_user_func_array([$this, 'startAsyncCall'], $args);
+    }
+
+    /**
+     * Create a `Service`.
+     *
+     * The async variant is {@see ServiceMonitoringServiceClient::createServiceAsync()}
+     * .
+     *
+     * @example samples/V3/ServiceMonitoringServiceClient/create_service.php
+     *
+     * @param CreateServiceRequest $request     A request to house fields associated with the call.
+     * @param array                $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return Service
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function createService(CreateServiceRequest $request, array $callOptions = []): Service
+    {
+        return $this->startApiCall('CreateService', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Create a `ServiceLevelObjective` for the given `Service`.
+     *
+     * The async variant is
+     * {@see ServiceMonitoringServiceClient::createServiceLevelObjectiveAsync()} .
+     *
+     * @example samples/V3/ServiceMonitoringServiceClient/create_service_level_objective.php
+     *
+     * @param CreateServiceLevelObjectiveRequest $request     A request to house fields associated with the call.
+     * @param array                              $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return ServiceLevelObjective
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function createServiceLevelObjective(CreateServiceLevelObjectiveRequest $request, array $callOptions = []): ServiceLevelObjective
+    {
+        return $this->startApiCall('CreateServiceLevelObjective', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Soft delete this `Service`.
+     *
+     * The async variant is {@see ServiceMonitoringServiceClient::deleteServiceAsync()}
+     * .
+     *
+     * @example samples/V3/ServiceMonitoringServiceClient/delete_service.php
+     *
+     * @param DeleteServiceRequest $request     A request to house fields associated with the call.
+     * @param array                $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function deleteService(DeleteServiceRequest $request, array $callOptions = []): void
+    {
+        $this->startApiCall('DeleteService', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Delete the given `ServiceLevelObjective`.
+     *
+     * The async variant is
+     * {@see ServiceMonitoringServiceClient::deleteServiceLevelObjectiveAsync()} .
+     *
+     * @example samples/V3/ServiceMonitoringServiceClient/delete_service_level_objective.php
+     *
+     * @param DeleteServiceLevelObjectiveRequest $request     A request to house fields associated with the call.
+     * @param array                              $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function deleteServiceLevelObjective(DeleteServiceLevelObjectiveRequest $request, array $callOptions = []): void
+    {
+        $this->startApiCall('DeleteServiceLevelObjective', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Get the named `Service`.
+     *
+     * The async variant is {@see ServiceMonitoringServiceClient::getServiceAsync()} .
+     *
+     * @example samples/V3/ServiceMonitoringServiceClient/get_service.php
+     *
+     * @param GetServiceRequest $request     A request to house fields associated with the call.
+     * @param array             $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return Service
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function getService(GetServiceRequest $request, array $callOptions = []): Service
+    {
+        return $this->startApiCall('GetService', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Get a `ServiceLevelObjective` by name.
+     *
+     * The async variant is
+     * {@see ServiceMonitoringServiceClient::getServiceLevelObjectiveAsync()} .
+     *
+     * @example samples/V3/ServiceMonitoringServiceClient/get_service_level_objective.php
+     *
+     * @param GetServiceLevelObjectiveRequest $request     A request to house fields associated with the call.
+     * @param array                           $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return ServiceLevelObjective
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function getServiceLevelObjective(GetServiceLevelObjectiveRequest $request, array $callOptions = []): ServiceLevelObjective
+    {
+        return $this->startApiCall('GetServiceLevelObjective', $request, $callOptions)->wait();
+    }
+
+    /**
+     * List the `ServiceLevelObjective`s for the given `Service`.
+     *
+     * The async variant is
+     * {@see ServiceMonitoringServiceClient::listServiceLevelObjectivesAsync()} .
+     *
+     * @example samples/V3/ServiceMonitoringServiceClient/list_service_level_objectives.php
+     *
+     * @param ListServiceLevelObjectivesRequest $request     A request to house fields associated with the call.
+     * @param array                             $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return PagedListResponse
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function listServiceLevelObjectives(ListServiceLevelObjectivesRequest $request, array $callOptions = []): PagedListResponse
+    {
+        return $this->startApiCall('ListServiceLevelObjectives', $request, $callOptions);
+    }
+
+    /**
+     * List `Service`s for this Metrics Scope.
+     *
+     * The async variant is {@see ServiceMonitoringServiceClient::listServicesAsync()}
+     * .
+     *
+     * @example samples/V3/ServiceMonitoringServiceClient/list_services.php
+     *
+     * @param ListServicesRequest $request     A request to house fields associated with the call.
+     * @param array               $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return PagedListResponse
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function listServices(ListServicesRequest $request, array $callOptions = []): PagedListResponse
+    {
+        return $this->startApiCall('ListServices', $request, $callOptions);
+    }
+
+    /**
+     * Update this `Service`.
+     *
+     * The async variant is {@see ServiceMonitoringServiceClient::updateServiceAsync()}
+     * .
+     *
+     * @example samples/V3/ServiceMonitoringServiceClient/update_service.php
+     *
+     * @param UpdateServiceRequest $request     A request to house fields associated with the call.
+     * @param array                $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return Service
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function updateService(UpdateServiceRequest $request, array $callOptions = []): Service
+    {
+        return $this->startApiCall('UpdateService', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Update the given `ServiceLevelObjective`.
+     *
+     * The async variant is
+     * {@see ServiceMonitoringServiceClient::updateServiceLevelObjectiveAsync()} .
+     *
+     * @example samples/V3/ServiceMonitoringServiceClient/update_service_level_objective.php
+     *
+     * @param UpdateServiceLevelObjectiveRequest $request     A request to house fields associated with the call.
+     * @param array                              $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return ServiceLevelObjective
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function updateServiceLevelObjective(UpdateServiceLevelObjectiveRequest $request, array $callOptions = []): ServiceLevelObjective
+    {
+        return $this->startApiCall('UpdateServiceLevelObjective', $request, $callOptions)->wait();
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/Client/SnoozeServiceClient.php b/owl-bot-staging/Monitoring/v3/src/V3/Client/SnoozeServiceClient.php
new file mode 100644
index 000000000000..9c00f00b9cbe
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/Client/SnoozeServiceClient.php
@@ -0,0 +1,438 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * Generated by gapic-generator-php from the file
+ * https://github.com/googleapis/googleapis/blob/master/google/monitoring/v3/snooze_service.proto
+ * Updates to the above are reflected here through a refresh process.
+ */
+
+namespace Google\Cloud\Monitoring\V3\Client;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\GapicClientTrait;
+use Google\ApiCore\PagedListResponse;
+use Google\ApiCore\ResourceHelperTrait;
+use Google\ApiCore\RetrySettings;
+use Google\ApiCore\Transport\TransportInterface;
+use Google\ApiCore\ValidationException;
+use Google\Auth\FetchAuthTokenInterface;
+use Google\Cloud\Monitoring\V3\CreateSnoozeRequest;
+use Google\Cloud\Monitoring\V3\GetSnoozeRequest;
+use Google\Cloud\Monitoring\V3\ListSnoozesRequest;
+use Google\Cloud\Monitoring\V3\Snooze;
+use Google\Cloud\Monitoring\V3\UpdateSnoozeRequest;
+use GuzzleHttp\Promise\PromiseInterface;
+use Psr\Log\LoggerInterface;
+
+/**
+ * Service Description: The SnoozeService API is used to temporarily prevent an alert policy from
+ * generating alerts. A Snooze is a description of the criteria under which one
+ * or more alert policies should not fire alerts for the specified duration.
+ *
+ * This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods.
+ *
+ * Many parameters require resource names to be formatted in a particular way. To
+ * assist with these names, this class includes a format method for each type of
+ * name, and additionally a parseName method to extract the individual identifiers
+ * contained within formatted names that are returned by the API.
+ *
+ * @method PromiseInterface<Snooze> createSnoozeAsync(CreateSnoozeRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<Snooze> getSnoozeAsync(GetSnoozeRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<PagedListResponse> listSnoozesAsync(ListSnoozesRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<Snooze> updateSnoozeAsync(UpdateSnoozeRequest $request, array $optionalArgs = [])
+ */
+final class SnoozeServiceClient
+{
+    use GapicClientTrait;
+    use ResourceHelperTrait;
+
+    /** The name of the service. */
+    private const SERVICE_NAME = 'google.monitoring.v3.SnoozeService';
+
+    /**
+     * The default address of the service.
+     *
+     * @deprecated SERVICE_ADDRESS_TEMPLATE should be used instead.
+     */
+    private const SERVICE_ADDRESS = 'monitoring.googleapis.com';
+
+    /** The address template of the service. */
+    private const SERVICE_ADDRESS_TEMPLATE = 'monitoring.UNIVERSE_DOMAIN';
+
+    /** The default port of the service. */
+    private const DEFAULT_SERVICE_PORT = 443;
+
+    /** The name of the code generator, to be included in the agent header. */
+    private const CODEGEN_NAME = 'gapic';
+
+    /** The default scopes required by the service. */
+    public static $serviceScopes = [
+        'https://www.googleapis.com/auth/cloud-platform',
+        'https://www.googleapis.com/auth/monitoring',
+        'https://www.googleapis.com/auth/monitoring.read',
+    ];
+
+    private static function getClientDefaults()
+    {
+        return [
+            'serviceName' => self::SERVICE_NAME,
+            'apiEndpoint' => self::SERVICE_ADDRESS . ':' . self::DEFAULT_SERVICE_PORT,
+            'clientConfig' => __DIR__ . '/../resources/snooze_service_client_config.json',
+            'descriptorsConfigPath' => __DIR__ . '/../resources/snooze_service_descriptor_config.php',
+            'gcpApiConfigPath' => __DIR__ . '/../resources/snooze_service_grpc_config.json',
+            'credentialsConfig' => [
+                'defaultScopes' => self::$serviceScopes,
+            ],
+            'transportConfig' => [
+                'rest' => [
+                    'restClientConfigPath' => __DIR__ . '/../resources/snooze_service_rest_client_config.php',
+                ],
+            ],
+        ];
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a alert_policy
+     * resource.
+     *
+     * @param string $project
+     * @param string $alertPolicy
+     *
+     * @return string The formatted alert_policy resource.
+     */
+    public static function alertPolicyName(string $project, string $alertPolicy): string
+    {
+        return self::getPathTemplate('alertPolicy')->render([
+            'project' => $project,
+            'alert_policy' => $alertPolicy,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * folder_alert_policy resource.
+     *
+     * @param string $folder
+     * @param string $alertPolicy
+     *
+     * @return string The formatted folder_alert_policy resource.
+     */
+    public static function folderAlertPolicyName(string $folder, string $alertPolicy): string
+    {
+        return self::getPathTemplate('folderAlertPolicy')->render([
+            'folder' => $folder,
+            'alert_policy' => $alertPolicy,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * organization_alert_policy resource.
+     *
+     * @param string $organization
+     * @param string $alertPolicy
+     *
+     * @return string The formatted organization_alert_policy resource.
+     */
+    public static function organizationAlertPolicyName(string $organization, string $alertPolicy): string
+    {
+        return self::getPathTemplate('organizationAlertPolicy')->render([
+            'organization' => $organization,
+            'alert_policy' => $alertPolicy,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a project
+     * resource.
+     *
+     * @param string $project
+     *
+     * @return string The formatted project resource.
+     */
+    public static function projectName(string $project): string
+    {
+        return self::getPathTemplate('project')->render([
+            'project' => $project,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * project_alert_policy resource.
+     *
+     * @param string $project
+     * @param string $alertPolicy
+     *
+     * @return string The formatted project_alert_policy resource.
+     */
+    public static function projectAlertPolicyName(string $project, string $alertPolicy): string
+    {
+        return self::getPathTemplate('projectAlertPolicy')->render([
+            'project' => $project,
+            'alert_policy' => $alertPolicy,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a snooze
+     * resource.
+     *
+     * @param string $project
+     * @param string $snooze
+     *
+     * @return string The formatted snooze resource.
+     */
+    public static function snoozeName(string $project, string $snooze): string
+    {
+        return self::getPathTemplate('snooze')->render([
+            'project' => $project,
+            'snooze' => $snooze,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a workspace
+     * resource.
+     *
+     * @param string $project
+     *
+     * @return string The formatted workspace resource.
+     */
+    public static function workspaceName(string $project): string
+    {
+        return self::getPathTemplate('workspace')->render([
+            'project' => $project,
+        ]);
+    }
+
+    /**
+     * Parses a formatted name string and returns an associative array of the components in the name.
+     * The following name formats are supported:
+     * Template: Pattern
+     * - alertPolicy: projects/{project}/alertPolicies/{alert_policy}
+     * - folderAlertPolicy: folders/{folder}/alertPolicies/{alert_policy}
+     * - organizationAlertPolicy: organizations/{organization}/alertPolicies/{alert_policy}
+     * - project: projects/{project}
+     * - projectAlertPolicy: projects/{project}/alertPolicies/{alert_policy}
+     * - snooze: projects/{project}/snoozes/{snooze}
+     * - workspace: projects/{project}
+     *
+     * The optional $template argument can be supplied to specify a particular pattern,
+     * and must match one of the templates listed above. If no $template argument is
+     * provided, or if the $template argument does not match one of the templates
+     * listed, then parseName will check each of the supported templates, and return
+     * the first match.
+     *
+     * @param string  $formattedName The formatted name string
+     * @param ?string $template      Optional name of template to match
+     *
+     * @return array An associative array from name component IDs to component values.
+     *
+     * @throws ValidationException If $formattedName could not be matched.
+     */
+    public static function parseName(string $formattedName, ?string $template = null): array
+    {
+        return self::parseFormattedName($formattedName, $template);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $options {
+     *     Optional. Options for configuring the service API wrapper.
+     *
+     *     @type string $apiEndpoint
+     *           The address of the API remote host. May optionally include the port, formatted
+     *           as "<uri>:<port>". Default 'monitoring.googleapis.com:443'.
+     *     @type string|array|FetchAuthTokenInterface|CredentialsWrapper $credentials
+     *           The credentials to be used by the client to authorize API calls. This option
+     *           accepts either a path to a credentials file, or a decoded credentials file as a
+     *           PHP array.
+     *           *Advanced usage*: In addition, this option can also accept a pre-constructed
+     *           {@see \Google\Auth\FetchAuthTokenInterface} object or
+     *           {@see \Google\ApiCore\CredentialsWrapper} object. Note that when one of these
+     *           objects are provided, any settings in $credentialsConfig will be ignored.
+     *     @type array $credentialsConfig
+     *           Options used to configure credentials, including auth token caching, for the
+     *           client. For a full list of supporting configuration options, see
+     *           {@see \Google\ApiCore\CredentialsWrapper::build()} .
+     *     @type bool $disableRetries
+     *           Determines whether or not retries defined by the client configuration should be
+     *           disabled. Defaults to `false`.
+     *     @type string|array $clientConfig
+     *           Client method configuration, including retry settings. This option can be either
+     *           a path to a JSON file, or a PHP array containing the decoded JSON data. By
+     *           default this settings points to the default client config file, which is
+     *           provided in the resources folder.
+     *     @type string|TransportInterface $transport
+     *           The transport used for executing network requests. May be either the string
+     *           `rest` or `grpc`. Defaults to `grpc` if gRPC support is detected on the system.
+     *           *Advanced usage*: Additionally, it is possible to pass in an already
+     *           instantiated {@see \Google\ApiCore\Transport\TransportInterface} object. Note
+     *           that when this object is provided, any settings in $transportConfig, and any
+     *           $apiEndpoint setting, will be ignored.
+     *     @type array $transportConfig
+     *           Configuration options that will be used to construct the transport. Options for
+     *           each supported transport type should be passed in a key for that transport. For
+     *           example:
+     *           $transportConfig = [
+     *               'grpc' => [...],
+     *               'rest' => [...],
+     *           ];
+     *           See the {@see \Google\ApiCore\Transport\GrpcTransport::build()} and
+     *           {@see \Google\ApiCore\Transport\RestTransport::build()} methods for the
+     *           supported options.
+     *     @type callable $clientCertSource
+     *           A callable which returns the client cert as a string. This can be used to
+     *           provide a certificate and private key to the transport layer for mTLS.
+     *     @type false|LoggerInterface $logger
+     *           A PSR-3 compliant logger. If set to false, logging is disabled, ignoring the
+     *           'GOOGLE_SDK_PHP_LOGGING' environment flag
+     * }
+     *
+     * @throws ValidationException
+     */
+    public function __construct(array $options = [])
+    {
+        $clientOptions = $this->buildClientOptions($options);
+        $this->setClientOptions($clientOptions);
+    }
+
+    /** Handles execution of the async variants for each documented method. */
+    public function __call($method, $args)
+    {
+        if (substr($method, -5) !== 'Async') {
+            trigger_error('Call to undefined method ' . __CLASS__ . "::$method()", E_USER_ERROR);
+        }
+
+        array_unshift($args, substr($method, 0, -5));
+        return call_user_func_array([$this, 'startAsyncCall'], $args);
+    }
+
+    /**
+     * Creates a `Snooze` that will prevent alerts, which match the provided
+     * criteria, from being opened. The `Snooze` applies for a specific time
+     * interval.
+     *
+     * The async variant is {@see SnoozeServiceClient::createSnoozeAsync()} .
+     *
+     * @example samples/V3/SnoozeServiceClient/create_snooze.php
+     *
+     * @param CreateSnoozeRequest $request     A request to house fields associated with the call.
+     * @param array               $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return Snooze
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function createSnooze(CreateSnoozeRequest $request, array $callOptions = []): Snooze
+    {
+        return $this->startApiCall('CreateSnooze', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Retrieves a `Snooze` by `name`.
+     *
+     * The async variant is {@see SnoozeServiceClient::getSnoozeAsync()} .
+     *
+     * @example samples/V3/SnoozeServiceClient/get_snooze.php
+     *
+     * @param GetSnoozeRequest $request     A request to house fields associated with the call.
+     * @param array            $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return Snooze
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function getSnooze(GetSnoozeRequest $request, array $callOptions = []): Snooze
+    {
+        return $this->startApiCall('GetSnooze', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Lists the `Snooze`s associated with a project. Can optionally pass in
+     * `filter`, which specifies predicates to match `Snooze`s.
+     *
+     * The async variant is {@see SnoozeServiceClient::listSnoozesAsync()} .
+     *
+     * @example samples/V3/SnoozeServiceClient/list_snoozes.php
+     *
+     * @param ListSnoozesRequest $request     A request to house fields associated with the call.
+     * @param array              $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return PagedListResponse
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function listSnoozes(ListSnoozesRequest $request, array $callOptions = []): PagedListResponse
+    {
+        return $this->startApiCall('ListSnoozes', $request, $callOptions);
+    }
+
+    /**
+     * Updates a `Snooze`, identified by its `name`, with the parameters in the
+     * given `Snooze` object.
+     *
+     * The async variant is {@see SnoozeServiceClient::updateSnoozeAsync()} .
+     *
+     * @example samples/V3/SnoozeServiceClient/update_snooze.php
+     *
+     * @param UpdateSnoozeRequest $request     A request to house fields associated with the call.
+     * @param array               $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return Snooze
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function updateSnooze(UpdateSnoozeRequest $request, array $callOptions = []): Snooze
+    {
+        return $this->startApiCall('UpdateSnooze', $request, $callOptions)->wait();
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/Client/UptimeCheckServiceClient.php b/owl-bot-staging/Monitoring/v3/src/V3/Client/UptimeCheckServiceClient.php
new file mode 100644
index 000000000000..b5fe1271a61f
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/Client/UptimeCheckServiceClient.php
@@ -0,0 +1,475 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * Generated by gapic-generator-php from the file
+ * https://github.com/googleapis/googleapis/blob/master/google/monitoring/v3/uptime_service.proto
+ * Updates to the above are reflected here through a refresh process.
+ */
+
+namespace Google\Cloud\Monitoring\V3\Client;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\GapicClientTrait;
+use Google\ApiCore\PagedListResponse;
+use Google\ApiCore\ResourceHelperTrait;
+use Google\ApiCore\RetrySettings;
+use Google\ApiCore\Transport\TransportInterface;
+use Google\ApiCore\ValidationException;
+use Google\Auth\FetchAuthTokenInterface;
+use Google\Cloud\Monitoring\V3\CreateUptimeCheckConfigRequest;
+use Google\Cloud\Monitoring\V3\DeleteUptimeCheckConfigRequest;
+use Google\Cloud\Monitoring\V3\GetUptimeCheckConfigRequest;
+use Google\Cloud\Monitoring\V3\ListUptimeCheckConfigsRequest;
+use Google\Cloud\Monitoring\V3\ListUptimeCheckIpsRequest;
+use Google\Cloud\Monitoring\V3\UpdateUptimeCheckConfigRequest;
+use Google\Cloud\Monitoring\V3\UptimeCheckConfig;
+use GuzzleHttp\Promise\PromiseInterface;
+use Psr\Log\LoggerInterface;
+
+/**
+ * Service Description: The UptimeCheckService API is used to manage (list, create, delete, edit)
+ * Uptime check configurations in the Cloud Monitoring product. An Uptime
+ * check is a piece of configuration that determines which resources and
+ * services to monitor for availability. These configurations can also be
+ * configured interactively by navigating to the [Cloud console]
+ * (https://console.cloud.google.com), selecting the appropriate project,
+ * clicking on "Monitoring" on the left-hand side to navigate to Cloud
+ * Monitoring, and then clicking on "Uptime".
+ *
+ * This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods.
+ *
+ * Many parameters require resource names to be formatted in a particular way. To
+ * assist with these names, this class includes a format method for each type of
+ * name, and additionally a parseName method to extract the individual identifiers
+ * contained within formatted names that are returned by the API.
+ *
+ * @method PromiseInterface<UptimeCheckConfig> createUptimeCheckConfigAsync(CreateUptimeCheckConfigRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<void> deleteUptimeCheckConfigAsync(DeleteUptimeCheckConfigRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<UptimeCheckConfig> getUptimeCheckConfigAsync(GetUptimeCheckConfigRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<PagedListResponse> listUptimeCheckConfigsAsync(ListUptimeCheckConfigsRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<PagedListResponse> listUptimeCheckIpsAsync(ListUptimeCheckIpsRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<UptimeCheckConfig> updateUptimeCheckConfigAsync(UpdateUptimeCheckConfigRequest $request, array $optionalArgs = [])
+ */
+final class UptimeCheckServiceClient
+{
+    use GapicClientTrait;
+    use ResourceHelperTrait;
+
+    /** The name of the service. */
+    private const SERVICE_NAME = 'google.monitoring.v3.UptimeCheckService';
+
+    /**
+     * The default address of the service.
+     *
+     * @deprecated SERVICE_ADDRESS_TEMPLATE should be used instead.
+     */
+    private const SERVICE_ADDRESS = 'monitoring.googleapis.com';
+
+    /** The address template of the service. */
+    private const SERVICE_ADDRESS_TEMPLATE = 'monitoring.UNIVERSE_DOMAIN';
+
+    /** The default port of the service. */
+    private const DEFAULT_SERVICE_PORT = 443;
+
+    /** The name of the code generator, to be included in the agent header. */
+    private const CODEGEN_NAME = 'gapic';
+
+    /** The default scopes required by the service. */
+    public static $serviceScopes = [
+        'https://www.googleapis.com/auth/cloud-platform',
+        'https://www.googleapis.com/auth/monitoring',
+        'https://www.googleapis.com/auth/monitoring.read',
+    ];
+
+    private static function getClientDefaults()
+    {
+        return [
+            'serviceName' => self::SERVICE_NAME,
+            'apiEndpoint' => self::SERVICE_ADDRESS . ':' . self::DEFAULT_SERVICE_PORT,
+            'clientConfig' => __DIR__ . '/../resources/uptime_check_service_client_config.json',
+            'descriptorsConfigPath' => __DIR__ . '/../resources/uptime_check_service_descriptor_config.php',
+            'gcpApiConfigPath' => __DIR__ . '/../resources/uptime_check_service_grpc_config.json',
+            'credentialsConfig' => [
+                'defaultScopes' => self::$serviceScopes,
+            ],
+            'transportConfig' => [
+                'rest' => [
+                    'restClientConfigPath' => __DIR__ . '/../resources/uptime_check_service_rest_client_config.php',
+                ],
+            ],
+        ];
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * folder_uptime_check_config resource.
+     *
+     * @param string $folder
+     * @param string $uptimeCheckConfig
+     *
+     * @return string The formatted folder_uptime_check_config resource.
+     */
+    public static function folderUptimeCheckConfigName(string $folder, string $uptimeCheckConfig): string
+    {
+        return self::getPathTemplate('folderUptimeCheckConfig')->render([
+            'folder' => $folder,
+            'uptime_check_config' => $uptimeCheckConfig,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a function
+     * resource.
+     *
+     * @param string $project
+     * @param string $location
+     * @param string $function
+     *
+     * @return string The formatted function resource.
+     */
+    public static function functionName(string $project, string $location, string $function): string
+    {
+        return self::getPathTemplate('function')->render([
+            'project' => $project,
+            'location' => $location,
+            'function' => $function,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * organization_uptime_check_config resource.
+     *
+     * @param string $organization
+     * @param string $uptimeCheckConfig
+     *
+     * @return string The formatted organization_uptime_check_config resource.
+     */
+    public static function organizationUptimeCheckConfigName(string $organization, string $uptimeCheckConfig): string
+    {
+        return self::getPathTemplate('organizationUptimeCheckConfig')->render([
+            'organization' => $organization,
+            'uptime_check_config' => $uptimeCheckConfig,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * project_uptime_check_config resource.
+     *
+     * @param string $project
+     * @param string $uptimeCheckConfig
+     *
+     * @return string The formatted project_uptime_check_config resource.
+     */
+    public static function projectUptimeCheckConfigName(string $project, string $uptimeCheckConfig): string
+    {
+        return self::getPathTemplate('projectUptimeCheckConfig')->render([
+            'project' => $project,
+            'uptime_check_config' => $uptimeCheckConfig,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * uptime_check_config resource.
+     *
+     * @param string $project
+     * @param string $uptimeCheckConfig
+     *
+     * @return string The formatted uptime_check_config resource.
+     */
+    public static function uptimeCheckConfigName(string $project, string $uptimeCheckConfig): string
+    {
+        return self::getPathTemplate('uptimeCheckConfig')->render([
+            'project' => $project,
+            'uptime_check_config' => $uptimeCheckConfig,
+        ]);
+    }
+
+    /**
+     * Parses a formatted name string and returns an associative array of the components in the name.
+     * The following name formats are supported:
+     * Template: Pattern
+     * - folderUptimeCheckConfig: folders/{folder}/uptimeCheckConfigs/{uptime_check_config}
+     * - function: projects/{project}/locations/{location}/functions/{function}
+     * - organizationUptimeCheckConfig: organizations/{organization}/uptimeCheckConfigs/{uptime_check_config}
+     * - projectUptimeCheckConfig: projects/{project}/uptimeCheckConfigs/{uptime_check_config}
+     * - uptimeCheckConfig: projects/{project}/uptimeCheckConfigs/{uptime_check_config}
+     *
+     * The optional $template argument can be supplied to specify a particular pattern,
+     * and must match one of the templates listed above. If no $template argument is
+     * provided, or if the $template argument does not match one of the templates
+     * listed, then parseName will check each of the supported templates, and return
+     * the first match.
+     *
+     * @param string  $formattedName The formatted name string
+     * @param ?string $template      Optional name of template to match
+     *
+     * @return array An associative array from name component IDs to component values.
+     *
+     * @throws ValidationException If $formattedName could not be matched.
+     */
+    public static function parseName(string $formattedName, ?string $template = null): array
+    {
+        return self::parseFormattedName($formattedName, $template);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $options {
+     *     Optional. Options for configuring the service API wrapper.
+     *
+     *     @type string $apiEndpoint
+     *           The address of the API remote host. May optionally include the port, formatted
+     *           as "<uri>:<port>". Default 'monitoring.googleapis.com:443'.
+     *     @type string|array|FetchAuthTokenInterface|CredentialsWrapper $credentials
+     *           The credentials to be used by the client to authorize API calls. This option
+     *           accepts either a path to a credentials file, or a decoded credentials file as a
+     *           PHP array.
+     *           *Advanced usage*: In addition, this option can also accept a pre-constructed
+     *           {@see \Google\Auth\FetchAuthTokenInterface} object or
+     *           {@see \Google\ApiCore\CredentialsWrapper} object. Note that when one of these
+     *           objects are provided, any settings in $credentialsConfig will be ignored.
+     *     @type array $credentialsConfig
+     *           Options used to configure credentials, including auth token caching, for the
+     *           client. For a full list of supporting configuration options, see
+     *           {@see \Google\ApiCore\CredentialsWrapper::build()} .
+     *     @type bool $disableRetries
+     *           Determines whether or not retries defined by the client configuration should be
+     *           disabled. Defaults to `false`.
+     *     @type string|array $clientConfig
+     *           Client method configuration, including retry settings. This option can be either
+     *           a path to a JSON file, or a PHP array containing the decoded JSON data. By
+     *           default this settings points to the default client config file, which is
+     *           provided in the resources folder.
+     *     @type string|TransportInterface $transport
+     *           The transport used for executing network requests. May be either the string
+     *           `rest` or `grpc`. Defaults to `grpc` if gRPC support is detected on the system.
+     *           *Advanced usage*: Additionally, it is possible to pass in an already
+     *           instantiated {@see \Google\ApiCore\Transport\TransportInterface} object. Note
+     *           that when this object is provided, any settings in $transportConfig, and any
+     *           $apiEndpoint setting, will be ignored.
+     *     @type array $transportConfig
+     *           Configuration options that will be used to construct the transport. Options for
+     *           each supported transport type should be passed in a key for that transport. For
+     *           example:
+     *           $transportConfig = [
+     *               'grpc' => [...],
+     *               'rest' => [...],
+     *           ];
+     *           See the {@see \Google\ApiCore\Transport\GrpcTransport::build()} and
+     *           {@see \Google\ApiCore\Transport\RestTransport::build()} methods for the
+     *           supported options.
+     *     @type callable $clientCertSource
+     *           A callable which returns the client cert as a string. This can be used to
+     *           provide a certificate and private key to the transport layer for mTLS.
+     *     @type false|LoggerInterface $logger
+     *           A PSR-3 compliant logger. If set to false, logging is disabled, ignoring the
+     *           'GOOGLE_SDK_PHP_LOGGING' environment flag
+     * }
+     *
+     * @throws ValidationException
+     */
+    public function __construct(array $options = [])
+    {
+        $clientOptions = $this->buildClientOptions($options);
+        $this->setClientOptions($clientOptions);
+    }
+
+    /** Handles execution of the async variants for each documented method. */
+    public function __call($method, $args)
+    {
+        if (substr($method, -5) !== 'Async') {
+            trigger_error('Call to undefined method ' . __CLASS__ . "::$method()", E_USER_ERROR);
+        }
+
+        array_unshift($args, substr($method, 0, -5));
+        return call_user_func_array([$this, 'startAsyncCall'], $args);
+    }
+
+    /**
+     * Creates a new Uptime check configuration.
+     *
+     * The async variant is
+     * {@see UptimeCheckServiceClient::createUptimeCheckConfigAsync()} .
+     *
+     * @example samples/V3/UptimeCheckServiceClient/create_uptime_check_config.php
+     *
+     * @param CreateUptimeCheckConfigRequest $request     A request to house fields associated with the call.
+     * @param array                          $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return UptimeCheckConfig
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function createUptimeCheckConfig(CreateUptimeCheckConfigRequest $request, array $callOptions = []): UptimeCheckConfig
+    {
+        return $this->startApiCall('CreateUptimeCheckConfig', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Deletes an Uptime check configuration. Note that this method will fail
+     * if the Uptime check configuration is referenced by an alert policy or
+     * other dependent configs that would be rendered invalid by the deletion.
+     *
+     * The async variant is
+     * {@see UptimeCheckServiceClient::deleteUptimeCheckConfigAsync()} .
+     *
+     * @example samples/V3/UptimeCheckServiceClient/delete_uptime_check_config.php
+     *
+     * @param DeleteUptimeCheckConfigRequest $request     A request to house fields associated with the call.
+     * @param array                          $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function deleteUptimeCheckConfig(DeleteUptimeCheckConfigRequest $request, array $callOptions = []): void
+    {
+        $this->startApiCall('DeleteUptimeCheckConfig', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Gets a single Uptime check configuration.
+     *
+     * The async variant is
+     * {@see UptimeCheckServiceClient::getUptimeCheckConfigAsync()} .
+     *
+     * @example samples/V3/UptimeCheckServiceClient/get_uptime_check_config.php
+     *
+     * @param GetUptimeCheckConfigRequest $request     A request to house fields associated with the call.
+     * @param array                       $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return UptimeCheckConfig
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function getUptimeCheckConfig(GetUptimeCheckConfigRequest $request, array $callOptions = []): UptimeCheckConfig
+    {
+        return $this->startApiCall('GetUptimeCheckConfig', $request, $callOptions)->wait();
+    }
+
+    /**
+     * Lists the existing valid Uptime check configurations for the project
+     * (leaving out any invalid configurations).
+     *
+     * The async variant is
+     * {@see UptimeCheckServiceClient::listUptimeCheckConfigsAsync()} .
+     *
+     * @example samples/V3/UptimeCheckServiceClient/list_uptime_check_configs.php
+     *
+     * @param ListUptimeCheckConfigsRequest $request     A request to house fields associated with the call.
+     * @param array                         $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return PagedListResponse
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function listUptimeCheckConfigs(ListUptimeCheckConfigsRequest $request, array $callOptions = []): PagedListResponse
+    {
+        return $this->startApiCall('ListUptimeCheckConfigs', $request, $callOptions);
+    }
+
+    /**
+     * Returns the list of IP addresses that checkers run from.
+     *
+     * The async variant is {@see UptimeCheckServiceClient::listUptimeCheckIpsAsync()}
+     * .
+     *
+     * @example samples/V3/UptimeCheckServiceClient/list_uptime_check_ips.php
+     *
+     * @param ListUptimeCheckIpsRequest $request     A request to house fields associated with the call.
+     * @param array                     $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return PagedListResponse
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function listUptimeCheckIps(ListUptimeCheckIpsRequest $request, array $callOptions = []): PagedListResponse
+    {
+        return $this->startApiCall('ListUptimeCheckIps', $request, $callOptions);
+    }
+
+    /**
+     * Updates an Uptime check configuration. You can either replace the entire
+     * configuration with a new one or replace only certain fields in the current
+     * configuration by specifying the fields to be updated via `updateMask`.
+     * Returns the updated configuration.
+     *
+     * The async variant is
+     * {@see UptimeCheckServiceClient::updateUptimeCheckConfigAsync()} .
+     *
+     * @example samples/V3/UptimeCheckServiceClient/update_uptime_check_config.php
+     *
+     * @param UpdateUptimeCheckConfigRequest $request     A request to house fields associated with the call.
+     * @param array                          $callOptions {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return UptimeCheckConfig
+     *
+     * @throws ApiException Thrown if the API call fails.
+     */
+    public function updateUptimeCheckConfig(UpdateUptimeCheckConfigRequest $request, array $callOptions = []): UptimeCheckConfig
+    {
+        return $this->startApiCall('UpdateUptimeCheckConfig', $request, $callOptions)->wait();
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/Gapic/AlertPolicyServiceGapicClient.php b/owl-bot-staging/Monitoring/v3/src/V3/Gapic/AlertPolicyServiceGapicClient.php
new file mode 100644
index 000000000000..b45a031630d8
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/Gapic/AlertPolicyServiceGapicClient.php
@@ -0,0 +1,806 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * Generated by gapic-generator-php from the file
+ * https://github.com/googleapis/googleapis/blob/master/google/monitoring/v3/alert_service.proto
+ * Updates to the above are reflected here through a refresh process.
+ */
+
+namespace Google\Cloud\Monitoring\V3\Gapic;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\GapicClientTrait;
+use Google\ApiCore\PathTemplate;
+use Google\ApiCore\RequestParamsHeaderDescriptor;
+use Google\ApiCore\RetrySettings;
+use Google\ApiCore\Transport\TransportInterface;
+use Google\ApiCore\ValidationException;
+use Google\Auth\FetchAuthTokenInterface;
+use Google\Cloud\Monitoring\V3\AlertPolicy;
+use Google\Cloud\Monitoring\V3\CreateAlertPolicyRequest;
+use Google\Cloud\Monitoring\V3\DeleteAlertPolicyRequest;
+use Google\Cloud\Monitoring\V3\GetAlertPolicyRequest;
+use Google\Cloud\Monitoring\V3\ListAlertPoliciesRequest;
+use Google\Cloud\Monitoring\V3\ListAlertPoliciesResponse;
+use Google\Cloud\Monitoring\V3\UpdateAlertPolicyRequest;
+use Google\Protobuf\FieldMask;
+use Google\Protobuf\GPBEmpty;
+
+/**
+ * Service Description: The AlertPolicyService API is used to manage (list, create, delete,
+ * edit) alert policies in Cloud Monitoring. An alerting policy is
+ * a description of the conditions under which some aspect of your
+ * system is considered to be "unhealthy" and the ways to notify
+ * people or services about this state. In addition to using this API, alert
+ * policies can also be managed through
+ * [Cloud Monitoring](https://cloud.google.com/monitoring/docs/),
+ * which can be reached by clicking the "Monitoring" tab in
+ * [Cloud console](https://console.cloud.google.com/).
+ *
+ * This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods. Sample code to get started:
+ *
+ * ```
+ * $alertPolicyServiceClient = new AlertPolicyServiceClient();
+ * try {
+ *     $name = 'name';
+ *     $alertPolicy = new AlertPolicy();
+ *     $response = $alertPolicyServiceClient->createAlertPolicy($name, $alertPolicy);
+ * } finally {
+ *     $alertPolicyServiceClient->close();
+ * }
+ * ```
+ *
+ * Many parameters require resource names to be formatted in a particular way. To
+ * assist with these names, this class includes a format method for each type of
+ * name, and additionally a parseName method to extract the individual identifiers
+ * contained within formatted names that are returned by the API.
+ *
+ * @deprecated Please use the new service client {@see \Google\Cloud\Monitoring\V3\Client\AlertPolicyServiceClient}.
+ */
+class AlertPolicyServiceGapicClient
+{
+    use GapicClientTrait;
+
+    /** The name of the service. */
+    const SERVICE_NAME = 'google.monitoring.v3.AlertPolicyService';
+
+    /**
+     * The default address of the service.
+     *
+     * @deprecated SERVICE_ADDRESS_TEMPLATE should be used instead.
+     */
+    const SERVICE_ADDRESS = 'monitoring.googleapis.com';
+
+    /** The address template of the service. */
+    private const SERVICE_ADDRESS_TEMPLATE = 'monitoring.UNIVERSE_DOMAIN';
+
+    /** The default port of the service. */
+    const DEFAULT_SERVICE_PORT = 443;
+
+    /** The name of the code generator, to be included in the agent header. */
+    const CODEGEN_NAME = 'gapic';
+
+    /** The default scopes required by the service. */
+    public static $serviceScopes = [
+        'https://www.googleapis.com/auth/cloud-platform',
+        'https://www.googleapis.com/auth/monitoring',
+        'https://www.googleapis.com/auth/monitoring.read',
+    ];
+
+    private static $alertPolicyNameTemplate;
+
+    private static $alertPolicyConditionNameTemplate;
+
+    private static $folderAlertPolicyNameTemplate;
+
+    private static $folderAlertPolicyConditionNameTemplate;
+
+    private static $organizationAlertPolicyNameTemplate;
+
+    private static $organizationAlertPolicyConditionNameTemplate;
+
+    private static $projectAlertPolicyNameTemplate;
+
+    private static $projectAlertPolicyConditionNameTemplate;
+
+    private static $pathTemplateMap;
+
+    private static function getClientDefaults()
+    {
+        return [
+            'serviceName' => self::SERVICE_NAME,
+            'apiEndpoint' => self::SERVICE_ADDRESS . ':' . self::DEFAULT_SERVICE_PORT,
+            'clientConfig' => __DIR__ . '/../resources/alert_policy_service_client_config.json',
+            'descriptorsConfigPath' => __DIR__ . '/../resources/alert_policy_service_descriptor_config.php',
+            'gcpApiConfigPath' => __DIR__ . '/../resources/alert_policy_service_grpc_config.json',
+            'credentialsConfig' => [
+                'defaultScopes' => self::$serviceScopes,
+            ],
+            'transportConfig' => [
+                'rest' => [
+                    'restClientConfigPath' => __DIR__ . '/../resources/alert_policy_service_rest_client_config.php',
+                ],
+            ],
+        ];
+    }
+
+    private static function getAlertPolicyNameTemplate()
+    {
+        if (self::$alertPolicyNameTemplate == null) {
+            self::$alertPolicyNameTemplate = new PathTemplate('projects/{project}/alertPolicies/{alert_policy}');
+        }
+
+        return self::$alertPolicyNameTemplate;
+    }
+
+    private static function getAlertPolicyConditionNameTemplate()
+    {
+        if (self::$alertPolicyConditionNameTemplate == null) {
+            self::$alertPolicyConditionNameTemplate = new PathTemplate('projects/{project}/alertPolicies/{alert_policy}/conditions/{condition}');
+        }
+
+        return self::$alertPolicyConditionNameTemplate;
+    }
+
+    private static function getFolderAlertPolicyNameTemplate()
+    {
+        if (self::$folderAlertPolicyNameTemplate == null) {
+            self::$folderAlertPolicyNameTemplate = new PathTemplate('folders/{folder}/alertPolicies/{alert_policy}');
+        }
+
+        return self::$folderAlertPolicyNameTemplate;
+    }
+
+    private static function getFolderAlertPolicyConditionNameTemplate()
+    {
+        if (self::$folderAlertPolicyConditionNameTemplate == null) {
+            self::$folderAlertPolicyConditionNameTemplate = new PathTemplate('folders/{folder}/alertPolicies/{alert_policy}/conditions/{condition}');
+        }
+
+        return self::$folderAlertPolicyConditionNameTemplate;
+    }
+
+    private static function getOrganizationAlertPolicyNameTemplate()
+    {
+        if (self::$organizationAlertPolicyNameTemplate == null) {
+            self::$organizationAlertPolicyNameTemplate = new PathTemplate('organizations/{organization}/alertPolicies/{alert_policy}');
+        }
+
+        return self::$organizationAlertPolicyNameTemplate;
+    }
+
+    private static function getOrganizationAlertPolicyConditionNameTemplate()
+    {
+        if (self::$organizationAlertPolicyConditionNameTemplate == null) {
+            self::$organizationAlertPolicyConditionNameTemplate = new PathTemplate('organizations/{organization}/alertPolicies/{alert_policy}/conditions/{condition}');
+        }
+
+        return self::$organizationAlertPolicyConditionNameTemplate;
+    }
+
+    private static function getProjectAlertPolicyNameTemplate()
+    {
+        if (self::$projectAlertPolicyNameTemplate == null) {
+            self::$projectAlertPolicyNameTemplate = new PathTemplate('projects/{project}/alertPolicies/{alert_policy}');
+        }
+
+        return self::$projectAlertPolicyNameTemplate;
+    }
+
+    private static function getProjectAlertPolicyConditionNameTemplate()
+    {
+        if (self::$projectAlertPolicyConditionNameTemplate == null) {
+            self::$projectAlertPolicyConditionNameTemplate = new PathTemplate('projects/{project}/alertPolicies/{alert_policy}/conditions/{condition}');
+        }
+
+        return self::$projectAlertPolicyConditionNameTemplate;
+    }
+
+    private static function getPathTemplateMap()
+    {
+        if (self::$pathTemplateMap == null) {
+            self::$pathTemplateMap = [
+                'alertPolicy' => self::getAlertPolicyNameTemplate(),
+                'alertPolicyCondition' => self::getAlertPolicyConditionNameTemplate(),
+                'folderAlertPolicy' => self::getFolderAlertPolicyNameTemplate(),
+                'folderAlertPolicyCondition' => self::getFolderAlertPolicyConditionNameTemplate(),
+                'organizationAlertPolicy' => self::getOrganizationAlertPolicyNameTemplate(),
+                'organizationAlertPolicyCondition' => self::getOrganizationAlertPolicyConditionNameTemplate(),
+                'projectAlertPolicy' => self::getProjectAlertPolicyNameTemplate(),
+                'projectAlertPolicyCondition' => self::getProjectAlertPolicyConditionNameTemplate(),
+            ];
+        }
+
+        return self::$pathTemplateMap;
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a alert_policy
+     * resource.
+     *
+     * @param string $project
+     * @param string $alertPolicy
+     *
+     * @return string The formatted alert_policy resource.
+     */
+    public static function alertPolicyName($project, $alertPolicy)
+    {
+        return self::getAlertPolicyNameTemplate()->render([
+            'project' => $project,
+            'alert_policy' => $alertPolicy,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * alert_policy_condition resource.
+     *
+     * @param string $project
+     * @param string $alertPolicy
+     * @param string $condition
+     *
+     * @return string The formatted alert_policy_condition resource.
+     */
+    public static function alertPolicyConditionName($project, $alertPolicy, $condition)
+    {
+        return self::getAlertPolicyConditionNameTemplate()->render([
+            'project' => $project,
+            'alert_policy' => $alertPolicy,
+            'condition' => $condition,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * folder_alert_policy resource.
+     *
+     * @param string $folder
+     * @param string $alertPolicy
+     *
+     * @return string The formatted folder_alert_policy resource.
+     */
+    public static function folderAlertPolicyName($folder, $alertPolicy)
+    {
+        return self::getFolderAlertPolicyNameTemplate()->render([
+            'folder' => $folder,
+            'alert_policy' => $alertPolicy,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * folder_alert_policy_condition resource.
+     *
+     * @param string $folder
+     * @param string $alertPolicy
+     * @param string $condition
+     *
+     * @return string The formatted folder_alert_policy_condition resource.
+     */
+    public static function folderAlertPolicyConditionName($folder, $alertPolicy, $condition)
+    {
+        return self::getFolderAlertPolicyConditionNameTemplate()->render([
+            'folder' => $folder,
+            'alert_policy' => $alertPolicy,
+            'condition' => $condition,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * organization_alert_policy resource.
+     *
+     * @param string $organization
+     * @param string $alertPolicy
+     *
+     * @return string The formatted organization_alert_policy resource.
+     */
+    public static function organizationAlertPolicyName($organization, $alertPolicy)
+    {
+        return self::getOrganizationAlertPolicyNameTemplate()->render([
+            'organization' => $organization,
+            'alert_policy' => $alertPolicy,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * organization_alert_policy_condition resource.
+     *
+     * @param string $organization
+     * @param string $alertPolicy
+     * @param string $condition
+     *
+     * @return string The formatted organization_alert_policy_condition resource.
+     */
+    public static function organizationAlertPolicyConditionName($organization, $alertPolicy, $condition)
+    {
+        return self::getOrganizationAlertPolicyConditionNameTemplate()->render([
+            'organization' => $organization,
+            'alert_policy' => $alertPolicy,
+            'condition' => $condition,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * project_alert_policy resource.
+     *
+     * @param string $project
+     * @param string $alertPolicy
+     *
+     * @return string The formatted project_alert_policy resource.
+     */
+    public static function projectAlertPolicyName($project, $alertPolicy)
+    {
+        return self::getProjectAlertPolicyNameTemplate()->render([
+            'project' => $project,
+            'alert_policy' => $alertPolicy,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * project_alert_policy_condition resource.
+     *
+     * @param string $project
+     * @param string $alertPolicy
+     * @param string $condition
+     *
+     * @return string The formatted project_alert_policy_condition resource.
+     */
+    public static function projectAlertPolicyConditionName($project, $alertPolicy, $condition)
+    {
+        return self::getProjectAlertPolicyConditionNameTemplate()->render([
+            'project' => $project,
+            'alert_policy' => $alertPolicy,
+            'condition' => $condition,
+        ]);
+    }
+
+    /**
+     * Parses a formatted name string and returns an associative array of the components in the name.
+     * The following name formats are supported:
+     * Template: Pattern
+     * - alertPolicy: projects/{project}/alertPolicies/{alert_policy}
+     * - alertPolicyCondition: projects/{project}/alertPolicies/{alert_policy}/conditions/{condition}
+     * - folderAlertPolicy: folders/{folder}/alertPolicies/{alert_policy}
+     * - folderAlertPolicyCondition: folders/{folder}/alertPolicies/{alert_policy}/conditions/{condition}
+     * - organizationAlertPolicy: organizations/{organization}/alertPolicies/{alert_policy}
+     * - organizationAlertPolicyCondition: organizations/{organization}/alertPolicies/{alert_policy}/conditions/{condition}
+     * - projectAlertPolicy: projects/{project}/alertPolicies/{alert_policy}
+     * - projectAlertPolicyCondition: projects/{project}/alertPolicies/{alert_policy}/conditions/{condition}
+     *
+     * The optional $template argument can be supplied to specify a particular pattern,
+     * and must match one of the templates listed above. If no $template argument is
+     * provided, or if the $template argument does not match one of the templates
+     * listed, then parseName will check each of the supported templates, and return
+     * the first match.
+     *
+     * @param string $formattedName The formatted name string
+     * @param string $template      Optional name of template to match
+     *
+     * @return array An associative array from name component IDs to component values.
+     *
+     * @throws ValidationException If $formattedName could not be matched.
+     */
+    public static function parseName($formattedName, $template = null)
+    {
+        $templateMap = self::getPathTemplateMap();
+        if ($template) {
+            if (!isset($templateMap[$template])) {
+                throw new ValidationException("Template name $template does not exist");
+            }
+
+            return $templateMap[$template]->match($formattedName);
+        }
+
+        foreach ($templateMap as $templateName => $pathTemplate) {
+            try {
+                return $pathTemplate->match($formattedName);
+            } catch (ValidationException $ex) {
+                // Swallow the exception to continue trying other path templates
+            }
+        }
+
+        throw new ValidationException("Input did not match any known format. Input: $formattedName");
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $options {
+     *     Optional. Options for configuring the service API wrapper.
+     *
+     *     @type string $apiEndpoint
+     *           The address of the API remote host. May optionally include the port, formatted
+     *           as "<uri>:<port>". Default 'monitoring.googleapis.com:443'.
+     *     @type string|array|FetchAuthTokenInterface|CredentialsWrapper $credentials
+     *           The credentials to be used by the client to authorize API calls. This option
+     *           accepts either a path to a credentials file, or a decoded credentials file as a
+     *           PHP array.
+     *           *Advanced usage*: In addition, this option can also accept a pre-constructed
+     *           {@see \Google\Auth\FetchAuthTokenInterface} object or
+     *           {@see \Google\ApiCore\CredentialsWrapper} object. Note that when one of these
+     *           objects are provided, any settings in $credentialsConfig will be ignored.
+     *     @type array $credentialsConfig
+     *           Options used to configure credentials, including auth token caching, for the
+     *           client. For a full list of supporting configuration options, see
+     *           {@see \Google\ApiCore\CredentialsWrapper::build()} .
+     *     @type bool $disableRetries
+     *           Determines whether or not retries defined by the client configuration should be
+     *           disabled. Defaults to `false`.
+     *     @type string|array $clientConfig
+     *           Client method configuration, including retry settings. This option can be either
+     *           a path to a JSON file, or a PHP array containing the decoded JSON data. By
+     *           default this settings points to the default client config file, which is
+     *           provided in the resources folder.
+     *     @type string|TransportInterface $transport
+     *           The transport used for executing network requests. May be either the string
+     *           `rest` or `grpc`. Defaults to `grpc` if gRPC support is detected on the system.
+     *           *Advanced usage*: Additionally, it is possible to pass in an already
+     *           instantiated {@see \Google\ApiCore\Transport\TransportInterface} object. Note
+     *           that when this object is provided, any settings in $transportConfig, and any
+     *           $apiEndpoint setting, will be ignored.
+     *     @type array $transportConfig
+     *           Configuration options that will be used to construct the transport. Options for
+     *           each supported transport type should be passed in a key for that transport. For
+     *           example:
+     *           $transportConfig = [
+     *               'grpc' => [...],
+     *               'rest' => [...],
+     *           ];
+     *           See the {@see \Google\ApiCore\Transport\GrpcTransport::build()} and
+     *           {@see \Google\ApiCore\Transport\RestTransport::build()} methods for the
+     *           supported options.
+     *     @type callable $clientCertSource
+     *           A callable which returns the client cert as a string. This can be used to
+     *           provide a certificate and private key to the transport layer for mTLS.
+     * }
+     *
+     * @throws ValidationException
+     */
+    public function __construct(array $options = [])
+    {
+        $clientOptions = $this->buildClientOptions($options);
+        $this->setClientOptions($clientOptions);
+    }
+
+    /**
+     * Creates a new alerting policy.
+     *
+     * Design your application to single-thread API calls that modify the state of
+     * alerting policies in a single project. This includes calls to
+     * CreateAlertPolicy, DeleteAlertPolicy and UpdateAlertPolicy.
+     *
+     * Sample code:
+     * ```
+     * $alertPolicyServiceClient = new AlertPolicyServiceClient();
+     * try {
+     *     $name = 'name';
+     *     $alertPolicy = new AlertPolicy();
+     *     $response = $alertPolicyServiceClient->createAlertPolicy($name, $alertPolicy);
+     * } finally {
+     *     $alertPolicyServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string      $name         Required. The
+     *                                  [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+     *                                  to create the alerting policy. The format is:
+     *
+     *                                  projects/[PROJECT_ID_OR_NUMBER]
+     *
+     *                                  Note that this field names the parent container in which the alerting
+     *                                  policy will be written, not the name of the created policy. |name| must be
+     *                                  a host project of a Metrics Scope, otherwise INVALID_ARGUMENT error will
+     *                                  return. The alerting policy that is returned will have a name that contains
+     *                                  a normalized representation of this name as a prefix but adds a suffix of
+     *                                  the form `/alertPolicies/[ALERT_POLICY_ID]`, identifying the policy in the
+     *                                  container.
+     * @param AlertPolicy $alertPolicy  Required. The requested alerting policy. You should omit the `name` field
+     *                                  in this policy. The name will be returned in the new policy, including a
+     *                                  new `[ALERT_POLICY_ID]` value.
+     * @param array       $optionalArgs {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Cloud\Monitoring\V3\AlertPolicy
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function createAlertPolicy($name, $alertPolicy, array $optionalArgs = [])
+    {
+        $request = new CreateAlertPolicyRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $request->setAlertPolicy($alertPolicy);
+        $requestParamHeaders['name'] = $name;
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('CreateAlertPolicy', AlertPolicy::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Deletes an alerting policy.
+     *
+     * Design your application to single-thread API calls that modify the state of
+     * alerting policies in a single project. This includes calls to
+     * CreateAlertPolicy, DeleteAlertPolicy and UpdateAlertPolicy.
+     *
+     * Sample code:
+     * ```
+     * $alertPolicyServiceClient = new AlertPolicyServiceClient();
+     * try {
+     *     $formattedName = $alertPolicyServiceClient->alertPolicyName('[PROJECT]', '[ALERT_POLICY]');
+     *     $alertPolicyServiceClient->deleteAlertPolicy($formattedName);
+     * } finally {
+     *     $alertPolicyServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. The alerting policy to delete. The format is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]/alertPolicies/[ALERT_POLICY_ID]
+     *
+     *                             For more information, see [AlertPolicy][google.monitoring.v3.AlertPolicy].
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function deleteAlertPolicy($name, array $optionalArgs = [])
+    {
+        $request = new DeleteAlertPolicyRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $requestParamHeaders['name'] = $name;
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('DeleteAlertPolicy', GPBEmpty::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Gets a single alerting policy.
+     *
+     * Sample code:
+     * ```
+     * $alertPolicyServiceClient = new AlertPolicyServiceClient();
+     * try {
+     *     $formattedName = $alertPolicyServiceClient->alertPolicyName('[PROJECT]', '[ALERT_POLICY]');
+     *     $response = $alertPolicyServiceClient->getAlertPolicy($formattedName);
+     * } finally {
+     *     $alertPolicyServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. The alerting policy to retrieve. The format is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]/alertPolicies/[ALERT_POLICY_ID]
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Cloud\Monitoring\V3\AlertPolicy
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function getAlertPolicy($name, array $optionalArgs = [])
+    {
+        $request = new GetAlertPolicyRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $requestParamHeaders['name'] = $name;
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('GetAlertPolicy', AlertPolicy::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Lists the existing alerting policies for the workspace.
+     *
+     * Sample code:
+     * ```
+     * $alertPolicyServiceClient = new AlertPolicyServiceClient();
+     * try {
+     *     $name = 'name';
+     *     // Iterate over pages of elements
+     *     $pagedResponse = $alertPolicyServiceClient->listAlertPolicies($name);
+     *     foreach ($pagedResponse->iteratePages() as $page) {
+     *         foreach ($page as $element) {
+     *             // doSomethingWith($element);
+     *         }
+     *     }
+     *     // Alternatively:
+     *     // Iterate through all elements
+     *     $pagedResponse = $alertPolicyServiceClient->listAlertPolicies($name);
+     *     foreach ($pagedResponse->iterateAllElements() as $element) {
+     *         // doSomethingWith($element);
+     *     }
+     * } finally {
+     *     $alertPolicyServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. The
+     *                             [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+     *                             alert policies are to be listed. The format is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]
+     *
+     *                             Note that this field names the parent container in which the alerting
+     *                             policies to be listed are stored. To retrieve a single alerting policy
+     *                             by name, use the
+     *                             [GetAlertPolicy][google.monitoring.v3.AlertPolicyService.GetAlertPolicy]
+     *                             operation, instead.
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type string $filter
+     *           Optional. If provided, this field specifies the criteria that must be met
+     *           by alert policies to be included in the response.
+     *
+     *           For more details, see [sorting and
+     *           filtering](https://cloud.google.com/monitoring/api/v3/sorting-and-filtering).
+     *     @type string $orderBy
+     *           Optional. A comma-separated list of fields by which to sort the result.
+     *           Supports the same set of field references as the `filter` field. Entries
+     *           can be prefixed with a minus sign to sort by the field in descending order.
+     *
+     *           For more details, see [sorting and
+     *           filtering](https://cloud.google.com/monitoring/api/v3/sorting-and-filtering).
+     *     @type int $pageSize
+     *           The maximum number of resources contained in the underlying API
+     *           response. The API may return fewer values in a page, even if
+     *           there are additional values to be retrieved.
+     *     @type string $pageToken
+     *           A page token is used to specify a page of values to be returned.
+     *           If no page token is specified (the default), the first page
+     *           of values will be returned. Any page token used here must have
+     *           been generated by a previous call to the API.
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\ApiCore\PagedListResponse
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function listAlertPolicies($name, array $optionalArgs = [])
+    {
+        $request = new ListAlertPoliciesRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $requestParamHeaders['name'] = $name;
+        if (isset($optionalArgs['filter'])) {
+            $request->setFilter($optionalArgs['filter']);
+        }
+
+        if (isset($optionalArgs['orderBy'])) {
+            $request->setOrderBy($optionalArgs['orderBy']);
+        }
+
+        if (isset($optionalArgs['pageSize'])) {
+            $request->setPageSize($optionalArgs['pageSize']);
+        }
+
+        if (isset($optionalArgs['pageToken'])) {
+            $request->setPageToken($optionalArgs['pageToken']);
+        }
+
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->getPagedListResponse('ListAlertPolicies', $optionalArgs, ListAlertPoliciesResponse::class, $request);
+    }
+
+    /**
+     * Updates an alerting policy. You can either replace the entire policy with
+     * a new one or replace only certain fields in the current alerting policy by
+     * specifying the fields to be updated via `updateMask`. Returns the
+     * updated alerting policy.
+     *
+     * Design your application to single-thread API calls that modify the state of
+     * alerting policies in a single project. This includes calls to
+     * CreateAlertPolicy, DeleteAlertPolicy and UpdateAlertPolicy.
+     *
+     * Sample code:
+     * ```
+     * $alertPolicyServiceClient = new AlertPolicyServiceClient();
+     * try {
+     *     $alertPolicy = new AlertPolicy();
+     *     $response = $alertPolicyServiceClient->updateAlertPolicy($alertPolicy);
+     * } finally {
+     *     $alertPolicyServiceClient->close();
+     * }
+     * ```
+     *
+     * @param AlertPolicy $alertPolicy  Required. The updated alerting policy or the updated values for the
+     *                                  fields listed in `update_mask`.
+     *                                  If `update_mask` is not empty, any fields in this policy that are
+     *                                  not in `update_mask` are ignored.
+     * @param array       $optionalArgs {
+     *     Optional.
+     *
+     *     @type FieldMask $updateMask
+     *           Optional. A list of alerting policy field names. If this field is not
+     *           empty, each listed field in the existing alerting policy is set to the
+     *           value of the corresponding field in the supplied policy (`alert_policy`),
+     *           or to the field's default value if the field is not in the supplied
+     *           alerting policy.  Fields not listed retain their previous value.
+     *
+     *           Examples of valid field masks include `display_name`, `documentation`,
+     *           `documentation.content`, `documentation.mime_type`, `user_labels`,
+     *           `user_label.nameofkey`, `enabled`, `conditions`, `combiner`, etc.
+     *
+     *           If this field is empty, then the supplied alerting policy replaces the
+     *           existing policy. It is the same as deleting the existing policy and
+     *           adding the supplied policy, except for the following:
+     *
+     *           +   The new policy will have the same `[ALERT_POLICY_ID]` as the former
+     *           policy. This gives you continuity with the former policy in your
+     *           notifications and incidents.
+     *           +   Conditions in the new policy will keep their former `[CONDITION_ID]` if
+     *           the supplied condition includes the `name` field with that
+     *           `[CONDITION_ID]`. If the supplied condition omits the `name` field,
+     *           then a new `[CONDITION_ID]` is created.
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Cloud\Monitoring\V3\AlertPolicy
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function updateAlertPolicy($alertPolicy, array $optionalArgs = [])
+    {
+        $request = new UpdateAlertPolicyRequest();
+        $requestParamHeaders = [];
+        $request->setAlertPolicy($alertPolicy);
+        $requestParamHeaders['alert_policy.name'] = $alertPolicy->getName();
+        if (isset($optionalArgs['updateMask'])) {
+            $request->setUpdateMask($optionalArgs['updateMask']);
+        }
+
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('UpdateAlertPolicy', AlertPolicy::class, $optionalArgs, $request)->wait();
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/Gapic/GroupServiceGapicClient.php b/owl-bot-staging/Monitoring/v3/src/V3/Gapic/GroupServiceGapicClient.php
new file mode 100644
index 000000000000..04306c6bc04e
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/Gapic/GroupServiceGapicClient.php
@@ -0,0 +1,752 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * Generated by gapic-generator-php from the file
+ * https://github.com/googleapis/googleapis/blob/master/google/monitoring/v3/group_service.proto
+ * Updates to the above are reflected here through a refresh process.
+ */
+
+namespace Google\Cloud\Monitoring\V3\Gapic;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\GapicClientTrait;
+use Google\ApiCore\PathTemplate;
+use Google\ApiCore\RequestParamsHeaderDescriptor;
+use Google\ApiCore\RetrySettings;
+use Google\ApiCore\Transport\TransportInterface;
+use Google\ApiCore\ValidationException;
+use Google\Auth\FetchAuthTokenInterface;
+use Google\Cloud\Monitoring\V3\CreateGroupRequest;
+use Google\Cloud\Monitoring\V3\DeleteGroupRequest;
+use Google\Cloud\Monitoring\V3\GetGroupRequest;
+use Google\Cloud\Monitoring\V3\Group;
+use Google\Cloud\Monitoring\V3\ListGroupMembersRequest;
+use Google\Cloud\Monitoring\V3\ListGroupMembersResponse;
+use Google\Cloud\Monitoring\V3\ListGroupsRequest;
+use Google\Cloud\Monitoring\V3\ListGroupsResponse;
+use Google\Cloud\Monitoring\V3\TimeInterval;
+use Google\Cloud\Monitoring\V3\UpdateGroupRequest;
+use Google\Protobuf\GPBEmpty;
+
+/**
+ * Service Description: The Group API lets you inspect and manage your
+ * [groups](#google.monitoring.v3.Group).
+ *
+ * A group is a named filter that is used to identify
+ * a collection of monitored resources. Groups are typically used to
+ * mirror the physical and/or logical topology of the environment.
+ * Because group membership is computed dynamically, monitored
+ * resources that are started in the future are automatically placed
+ * in matching groups. By using a group to name monitored resources in,
+ * for example, an alert policy, the target of that alert policy is
+ * updated automatically as monitored resources are added and removed
+ * from the infrastructure.
+ *
+ * This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods. Sample code to get started:
+ *
+ * ```
+ * $groupServiceClient = new GroupServiceClient();
+ * try {
+ *     $name = 'name';
+ *     $group = new Group();
+ *     $response = $groupServiceClient->createGroup($name, $group);
+ * } finally {
+ *     $groupServiceClient->close();
+ * }
+ * ```
+ *
+ * Many parameters require resource names to be formatted in a particular way. To
+ * assist with these names, this class includes a format method for each type of
+ * name, and additionally a parseName method to extract the individual identifiers
+ * contained within formatted names that are returned by the API.
+ *
+ * @deprecated Please use the new service client {@see \Google\Cloud\Monitoring\V3\Client\GroupServiceClient}.
+ */
+class GroupServiceGapicClient
+{
+    use GapicClientTrait;
+
+    /** The name of the service. */
+    const SERVICE_NAME = 'google.monitoring.v3.GroupService';
+
+    /**
+     * The default address of the service.
+     *
+     * @deprecated SERVICE_ADDRESS_TEMPLATE should be used instead.
+     */
+    const SERVICE_ADDRESS = 'monitoring.googleapis.com';
+
+    /** The address template of the service. */
+    private const SERVICE_ADDRESS_TEMPLATE = 'monitoring.UNIVERSE_DOMAIN';
+
+    /** The default port of the service. */
+    const DEFAULT_SERVICE_PORT = 443;
+
+    /** The name of the code generator, to be included in the agent header. */
+    const CODEGEN_NAME = 'gapic';
+
+    /** The default scopes required by the service. */
+    public static $serviceScopes = [
+        'https://www.googleapis.com/auth/cloud-platform',
+        'https://www.googleapis.com/auth/monitoring',
+        'https://www.googleapis.com/auth/monitoring.read',
+    ];
+
+    private static $folderGroupNameTemplate;
+
+    private static $groupNameTemplate;
+
+    private static $organizationGroupNameTemplate;
+
+    private static $projectGroupNameTemplate;
+
+    private static $pathTemplateMap;
+
+    private static function getClientDefaults()
+    {
+        return [
+            'serviceName' => self::SERVICE_NAME,
+            'apiEndpoint' => self::SERVICE_ADDRESS . ':' . self::DEFAULT_SERVICE_PORT,
+            'clientConfig' => __DIR__ . '/../resources/group_service_client_config.json',
+            'descriptorsConfigPath' => __DIR__ . '/../resources/group_service_descriptor_config.php',
+            'gcpApiConfigPath' => __DIR__ . '/../resources/group_service_grpc_config.json',
+            'credentialsConfig' => [
+                'defaultScopes' => self::$serviceScopes,
+            ],
+            'transportConfig' => [
+                'rest' => [
+                    'restClientConfigPath' => __DIR__ . '/../resources/group_service_rest_client_config.php',
+                ],
+            ],
+        ];
+    }
+
+    private static function getFolderGroupNameTemplate()
+    {
+        if (self::$folderGroupNameTemplate == null) {
+            self::$folderGroupNameTemplate = new PathTemplate('folders/{folder}/groups/{group}');
+        }
+
+        return self::$folderGroupNameTemplate;
+    }
+
+    private static function getGroupNameTemplate()
+    {
+        if (self::$groupNameTemplate == null) {
+            self::$groupNameTemplate = new PathTemplate('projects/{project}/groups/{group}');
+        }
+
+        return self::$groupNameTemplate;
+    }
+
+    private static function getOrganizationGroupNameTemplate()
+    {
+        if (self::$organizationGroupNameTemplate == null) {
+            self::$organizationGroupNameTemplate = new PathTemplate('organizations/{organization}/groups/{group}');
+        }
+
+        return self::$organizationGroupNameTemplate;
+    }
+
+    private static function getProjectGroupNameTemplate()
+    {
+        if (self::$projectGroupNameTemplate == null) {
+            self::$projectGroupNameTemplate = new PathTemplate('projects/{project}/groups/{group}');
+        }
+
+        return self::$projectGroupNameTemplate;
+    }
+
+    private static function getPathTemplateMap()
+    {
+        if (self::$pathTemplateMap == null) {
+            self::$pathTemplateMap = [
+                'folderGroup' => self::getFolderGroupNameTemplate(),
+                'group' => self::getGroupNameTemplate(),
+                'organizationGroup' => self::getOrganizationGroupNameTemplate(),
+                'projectGroup' => self::getProjectGroupNameTemplate(),
+            ];
+        }
+
+        return self::$pathTemplateMap;
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a folder_group
+     * resource.
+     *
+     * @param string $folder
+     * @param string $group
+     *
+     * @return string The formatted folder_group resource.
+     */
+    public static function folderGroupName($folder, $group)
+    {
+        return self::getFolderGroupNameTemplate()->render([
+            'folder' => $folder,
+            'group' => $group,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a group
+     * resource.
+     *
+     * @param string $project
+     * @param string $group
+     *
+     * @return string The formatted group resource.
+     */
+    public static function groupName($project, $group)
+    {
+        return self::getGroupNameTemplate()->render([
+            'project' => $project,
+            'group' => $group,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * organization_group resource.
+     *
+     * @param string $organization
+     * @param string $group
+     *
+     * @return string The formatted organization_group resource.
+     */
+    public static function organizationGroupName($organization, $group)
+    {
+        return self::getOrganizationGroupNameTemplate()->render([
+            'organization' => $organization,
+            'group' => $group,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * project_group resource.
+     *
+     * @param string $project
+     * @param string $group
+     *
+     * @return string The formatted project_group resource.
+     */
+    public static function projectGroupName($project, $group)
+    {
+        return self::getProjectGroupNameTemplate()->render([
+            'project' => $project,
+            'group' => $group,
+        ]);
+    }
+
+    /**
+     * Parses a formatted name string and returns an associative array of the components in the name.
+     * The following name formats are supported:
+     * Template: Pattern
+     * - folderGroup: folders/{folder}/groups/{group}
+     * - group: projects/{project}/groups/{group}
+     * - organizationGroup: organizations/{organization}/groups/{group}
+     * - projectGroup: projects/{project}/groups/{group}
+     *
+     * The optional $template argument can be supplied to specify a particular pattern,
+     * and must match one of the templates listed above. If no $template argument is
+     * provided, or if the $template argument does not match one of the templates
+     * listed, then parseName will check each of the supported templates, and return
+     * the first match.
+     *
+     * @param string $formattedName The formatted name string
+     * @param string $template      Optional name of template to match
+     *
+     * @return array An associative array from name component IDs to component values.
+     *
+     * @throws ValidationException If $formattedName could not be matched.
+     */
+    public static function parseName($formattedName, $template = null)
+    {
+        $templateMap = self::getPathTemplateMap();
+        if ($template) {
+            if (!isset($templateMap[$template])) {
+                throw new ValidationException("Template name $template does not exist");
+            }
+
+            return $templateMap[$template]->match($formattedName);
+        }
+
+        foreach ($templateMap as $templateName => $pathTemplate) {
+            try {
+                return $pathTemplate->match($formattedName);
+            } catch (ValidationException $ex) {
+                // Swallow the exception to continue trying other path templates
+            }
+        }
+
+        throw new ValidationException("Input did not match any known format. Input: $formattedName");
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $options {
+     *     Optional. Options for configuring the service API wrapper.
+     *
+     *     @type string $apiEndpoint
+     *           The address of the API remote host. May optionally include the port, formatted
+     *           as "<uri>:<port>". Default 'monitoring.googleapis.com:443'.
+     *     @type string|array|FetchAuthTokenInterface|CredentialsWrapper $credentials
+     *           The credentials to be used by the client to authorize API calls. This option
+     *           accepts either a path to a credentials file, or a decoded credentials file as a
+     *           PHP array.
+     *           *Advanced usage*: In addition, this option can also accept a pre-constructed
+     *           {@see \Google\Auth\FetchAuthTokenInterface} object or
+     *           {@see \Google\ApiCore\CredentialsWrapper} object. Note that when one of these
+     *           objects are provided, any settings in $credentialsConfig will be ignored.
+     *     @type array $credentialsConfig
+     *           Options used to configure credentials, including auth token caching, for the
+     *           client. For a full list of supporting configuration options, see
+     *           {@see \Google\ApiCore\CredentialsWrapper::build()} .
+     *     @type bool $disableRetries
+     *           Determines whether or not retries defined by the client configuration should be
+     *           disabled. Defaults to `false`.
+     *     @type string|array $clientConfig
+     *           Client method configuration, including retry settings. This option can be either
+     *           a path to a JSON file, or a PHP array containing the decoded JSON data. By
+     *           default this settings points to the default client config file, which is
+     *           provided in the resources folder.
+     *     @type string|TransportInterface $transport
+     *           The transport used for executing network requests. May be either the string
+     *           `rest` or `grpc`. Defaults to `grpc` if gRPC support is detected on the system.
+     *           *Advanced usage*: Additionally, it is possible to pass in an already
+     *           instantiated {@see \Google\ApiCore\Transport\TransportInterface} object. Note
+     *           that when this object is provided, any settings in $transportConfig, and any
+     *           $apiEndpoint setting, will be ignored.
+     *     @type array $transportConfig
+     *           Configuration options that will be used to construct the transport. Options for
+     *           each supported transport type should be passed in a key for that transport. For
+     *           example:
+     *           $transportConfig = [
+     *               'grpc' => [...],
+     *               'rest' => [...],
+     *           ];
+     *           See the {@see \Google\ApiCore\Transport\GrpcTransport::build()} and
+     *           {@see \Google\ApiCore\Transport\RestTransport::build()} methods for the
+     *           supported options.
+     *     @type callable $clientCertSource
+     *           A callable which returns the client cert as a string. This can be used to
+     *           provide a certificate and private key to the transport layer for mTLS.
+     * }
+     *
+     * @throws ValidationException
+     */
+    public function __construct(array $options = [])
+    {
+        $clientOptions = $this->buildClientOptions($options);
+        $this->setClientOptions($clientOptions);
+    }
+
+    /**
+     * Creates a new group.
+     *
+     * Sample code:
+     * ```
+     * $groupServiceClient = new GroupServiceClient();
+     * try {
+     *     $name = 'name';
+     *     $group = new Group();
+     *     $response = $groupServiceClient->createGroup($name, $group);
+     * } finally {
+     *     $groupServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. The
+     *                             [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+     *                             to create the group. The format is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]
+     * @param Group  $group        Required. A group definition. It is an error to define the `name` field
+     *                             because the system assigns the name.
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type bool $validateOnly
+     *           If true, validate this request but do not create the group.
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Cloud\Monitoring\V3\Group
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function createGroup($name, $group, array $optionalArgs = [])
+    {
+        $request = new CreateGroupRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $request->setGroup($group);
+        $requestParamHeaders['name'] = $name;
+        if (isset($optionalArgs['validateOnly'])) {
+            $request->setValidateOnly($optionalArgs['validateOnly']);
+        }
+
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('CreateGroup', Group::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Deletes an existing group.
+     *
+     * Sample code:
+     * ```
+     * $groupServiceClient = new GroupServiceClient();
+     * try {
+     *     $formattedName = $groupServiceClient->groupName('[PROJECT]', '[GROUP]');
+     *     $groupServiceClient->deleteGroup($formattedName);
+     * } finally {
+     *     $groupServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. The group to delete. The format is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type bool $recursive
+     *           If this field is true, then the request means to delete a group with all
+     *           its descendants. Otherwise, the request means to delete a group only when
+     *           it has no descendants. The default value is false.
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function deleteGroup($name, array $optionalArgs = [])
+    {
+        $request = new DeleteGroupRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $requestParamHeaders['name'] = $name;
+        if (isset($optionalArgs['recursive'])) {
+            $request->setRecursive($optionalArgs['recursive']);
+        }
+
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('DeleteGroup', GPBEmpty::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Gets a single group.
+     *
+     * Sample code:
+     * ```
+     * $groupServiceClient = new GroupServiceClient();
+     * try {
+     *     $formattedName = $groupServiceClient->groupName('[PROJECT]', '[GROUP]');
+     *     $response = $groupServiceClient->getGroup($formattedName);
+     * } finally {
+     *     $groupServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. The group to retrieve. The format is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Cloud\Monitoring\V3\Group
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function getGroup($name, array $optionalArgs = [])
+    {
+        $request = new GetGroupRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $requestParamHeaders['name'] = $name;
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('GetGroup', Group::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Lists the monitored resources that are members of a group.
+     *
+     * Sample code:
+     * ```
+     * $groupServiceClient = new GroupServiceClient();
+     * try {
+     *     $formattedName = $groupServiceClient->groupName('[PROJECT]', '[GROUP]');
+     *     // Iterate over pages of elements
+     *     $pagedResponse = $groupServiceClient->listGroupMembers($formattedName);
+     *     foreach ($pagedResponse->iteratePages() as $page) {
+     *         foreach ($page as $element) {
+     *             // doSomethingWith($element);
+     *         }
+     *     }
+     *     // Alternatively:
+     *     // Iterate through all elements
+     *     $pagedResponse = $groupServiceClient->listGroupMembers($formattedName);
+     *     foreach ($pagedResponse->iterateAllElements() as $element) {
+     *         // doSomethingWith($element);
+     *     }
+     * } finally {
+     *     $groupServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. The group whose members are listed. The format is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type int $pageSize
+     *           The maximum number of resources contained in the underlying API
+     *           response. The API may return fewer values in a page, even if
+     *           there are additional values to be retrieved.
+     *     @type string $pageToken
+     *           A page token is used to specify a page of values to be returned.
+     *           If no page token is specified (the default), the first page
+     *           of values will be returned. Any page token used here must have
+     *           been generated by a previous call to the API.
+     *     @type string $filter
+     *           An optional [list
+     *           filter](https://cloud.google.com/monitoring/api/learn_more#filtering)
+     *           describing the members to be returned.  The filter may reference the type,
+     *           labels, and metadata of monitored resources that comprise the group. For
+     *           example, to return only resources representing Compute Engine VM instances,
+     *           use this filter:
+     *
+     *           `resource.type = "gce_instance"`
+     *     @type TimeInterval $interval
+     *           An optional time interval for which results should be returned. Only
+     *           members that were part of the group during the specified interval are
+     *           included in the response.  If no interval is provided then the group
+     *           membership over the last minute is returned.
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\ApiCore\PagedListResponse
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function listGroupMembers($name, array $optionalArgs = [])
+    {
+        $request = new ListGroupMembersRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $requestParamHeaders['name'] = $name;
+        if (isset($optionalArgs['pageSize'])) {
+            $request->setPageSize($optionalArgs['pageSize']);
+        }
+
+        if (isset($optionalArgs['pageToken'])) {
+            $request->setPageToken($optionalArgs['pageToken']);
+        }
+
+        if (isset($optionalArgs['filter'])) {
+            $request->setFilter($optionalArgs['filter']);
+        }
+
+        if (isset($optionalArgs['interval'])) {
+            $request->setInterval($optionalArgs['interval']);
+        }
+
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->getPagedListResponse('ListGroupMembers', $optionalArgs, ListGroupMembersResponse::class, $request);
+    }
+
+    /**
+     * Lists the existing groups.
+     *
+     * Sample code:
+     * ```
+     * $groupServiceClient = new GroupServiceClient();
+     * try {
+     *     $name = 'name';
+     *     // Iterate over pages of elements
+     *     $pagedResponse = $groupServiceClient->listGroups($name);
+     *     foreach ($pagedResponse->iteratePages() as $page) {
+     *         foreach ($page as $element) {
+     *             // doSomethingWith($element);
+     *         }
+     *     }
+     *     // Alternatively:
+     *     // Iterate through all elements
+     *     $pagedResponse = $groupServiceClient->listGroups($name);
+     *     foreach ($pagedResponse->iterateAllElements() as $element) {
+     *         // doSomethingWith($element);
+     *     }
+     * } finally {
+     *     $groupServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. The
+     *                             [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+     *                             groups are to be listed. The format is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type string $childrenOfGroup
+     *           A group name. The format is:
+     *
+     *           projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     *
+     *           Returns groups whose `parent_name` field contains the group
+     *           name.  If no groups have this parent, the results are empty.
+     *     @type string $ancestorsOfGroup
+     *           A group name. The format is:
+     *
+     *           projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     *
+     *           Returns groups that are ancestors of the specified group.
+     *           The groups are returned in order, starting with the immediate parent and
+     *           ending with the most distant ancestor.  If the specified group has no
+     *           immediate parent, the results are empty.
+     *     @type string $descendantsOfGroup
+     *           A group name. The format is:
+     *
+     *           projects/[PROJECT_ID_OR_NUMBER]/groups/[GROUP_ID]
+     *
+     *           Returns the descendants of the specified group.  This is a superset of
+     *           the results returned by the `children_of_group` filter, and includes
+     *           children-of-children, and so forth.
+     *     @type int $pageSize
+     *           The maximum number of resources contained in the underlying API
+     *           response. The API may return fewer values in a page, even if
+     *           there are additional values to be retrieved.
+     *     @type string $pageToken
+     *           A page token is used to specify a page of values to be returned.
+     *           If no page token is specified (the default), the first page
+     *           of values will be returned. Any page token used here must have
+     *           been generated by a previous call to the API.
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\ApiCore\PagedListResponse
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function listGroups($name, array $optionalArgs = [])
+    {
+        $request = new ListGroupsRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $requestParamHeaders['name'] = $name;
+        if (isset($optionalArgs['childrenOfGroup'])) {
+            $request->setChildrenOfGroup($optionalArgs['childrenOfGroup']);
+        }
+
+        if (isset($optionalArgs['ancestorsOfGroup'])) {
+            $request->setAncestorsOfGroup($optionalArgs['ancestorsOfGroup']);
+        }
+
+        if (isset($optionalArgs['descendantsOfGroup'])) {
+            $request->setDescendantsOfGroup($optionalArgs['descendantsOfGroup']);
+        }
+
+        if (isset($optionalArgs['pageSize'])) {
+            $request->setPageSize($optionalArgs['pageSize']);
+        }
+
+        if (isset($optionalArgs['pageToken'])) {
+            $request->setPageToken($optionalArgs['pageToken']);
+        }
+
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->getPagedListResponse('ListGroups', $optionalArgs, ListGroupsResponse::class, $request);
+    }
+
+    /**
+     * Updates an existing group.
+     * You can change any group attributes except `name`.
+     *
+     * Sample code:
+     * ```
+     * $groupServiceClient = new GroupServiceClient();
+     * try {
+     *     $group = new Group();
+     *     $response = $groupServiceClient->updateGroup($group);
+     * } finally {
+     *     $groupServiceClient->close();
+     * }
+     * ```
+     *
+     * @param Group $group        Required. The new definition of the group.  All fields of the existing
+     *                            group, excepting `name`, are replaced with the corresponding fields of this
+     *                            group.
+     * @param array $optionalArgs {
+     *     Optional.
+     *
+     *     @type bool $validateOnly
+     *           If true, validate this request but do not update the existing group.
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Cloud\Monitoring\V3\Group
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function updateGroup($group, array $optionalArgs = [])
+    {
+        $request = new UpdateGroupRequest();
+        $requestParamHeaders = [];
+        $request->setGroup($group);
+        $requestParamHeaders['group.name'] = $group->getName();
+        if (isset($optionalArgs['validateOnly'])) {
+            $request->setValidateOnly($optionalArgs['validateOnly']);
+        }
+
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('UpdateGroup', Group::class, $optionalArgs, $request)->wait();
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/Gapic/MetricServiceGapicClient.php b/owl-bot-staging/Monitoring/v3/src/V3/Gapic/MetricServiceGapicClient.php
new file mode 100644
index 000000000000..de1708a3ea67
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/Gapic/MetricServiceGapicClient.php
@@ -0,0 +1,1178 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * Generated by gapic-generator-php from the file
+ * https://github.com/googleapis/googleapis/blob/master/google/monitoring/v3/metric_service.proto
+ * Updates to the above are reflected here through a refresh process.
+ */
+
+namespace Google\Cloud\Monitoring\V3\Gapic;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\GapicClientTrait;
+use Google\ApiCore\PathTemplate;
+use Google\ApiCore\RequestParamsHeaderDescriptor;
+use Google\ApiCore\RetrySettings;
+use Google\ApiCore\Transport\TransportInterface;
+use Google\ApiCore\ValidationException;
+use Google\Api\MetricDescriptor;
+use Google\Api\MonitoredResourceDescriptor;
+use Google\Auth\FetchAuthTokenInterface;
+use Google\Cloud\Monitoring\V3\Aggregation;
+use Google\Cloud\Monitoring\V3\CreateMetricDescriptorRequest;
+use Google\Cloud\Monitoring\V3\CreateTimeSeriesRequest;
+use Google\Cloud\Monitoring\V3\DeleteMetricDescriptorRequest;
+use Google\Cloud\Monitoring\V3\GetMetricDescriptorRequest;
+use Google\Cloud\Monitoring\V3\GetMonitoredResourceDescriptorRequest;
+use Google\Cloud\Monitoring\V3\ListMetricDescriptorsRequest;
+use Google\Cloud\Monitoring\V3\ListMetricDescriptorsResponse;
+use Google\Cloud\Monitoring\V3\ListMonitoredResourceDescriptorsRequest;
+use Google\Cloud\Monitoring\V3\ListMonitoredResourceDescriptorsResponse;
+use Google\Cloud\Monitoring\V3\ListTimeSeriesRequest;
+use Google\Cloud\Monitoring\V3\ListTimeSeriesRequest\TimeSeriesView;
+use Google\Cloud\Monitoring\V3\ListTimeSeriesResponse;
+use Google\Cloud\Monitoring\V3\TimeInterval;
+use Google\Cloud\Monitoring\V3\TimeSeries;
+use Google\Protobuf\GPBEmpty;
+
+/**
+ * Service Description: Manages metric descriptors, monitored resource descriptors, and
+ * time series data.
+ *
+ * This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods. Sample code to get started:
+ *
+ * ```
+ * $metricServiceClient = new MetricServiceClient();
+ * try {
+ *     $name = 'name';
+ *     $metricDescriptor = new MetricDescriptor();
+ *     $response = $metricServiceClient->createMetricDescriptor($name, $metricDescriptor);
+ * } finally {
+ *     $metricServiceClient->close();
+ * }
+ * ```
+ *
+ * Many parameters require resource names to be formatted in a particular way. To
+ * assist with these names, this class includes a format method for each type of
+ * name, and additionally a parseName method to extract the individual identifiers
+ * contained within formatted names that are returned by the API.
+ *
+ * @deprecated Please use the new service client {@see \Google\Cloud\Monitoring\V3\Client\MetricServiceClient}.
+ */
+class MetricServiceGapicClient
+{
+    use GapicClientTrait;
+
+    /** The name of the service. */
+    const SERVICE_NAME = 'google.monitoring.v3.MetricService';
+
+    /**
+     * The default address of the service.
+     *
+     * @deprecated SERVICE_ADDRESS_TEMPLATE should be used instead.
+     */
+    const SERVICE_ADDRESS = 'monitoring.googleapis.com';
+
+    /** The address template of the service. */
+    private const SERVICE_ADDRESS_TEMPLATE = 'monitoring.UNIVERSE_DOMAIN';
+
+    /** The default port of the service. */
+    const DEFAULT_SERVICE_PORT = 443;
+
+    /** The name of the code generator, to be included in the agent header. */
+    const CODEGEN_NAME = 'gapic';
+
+    /** The default scopes required by the service. */
+    public static $serviceScopes = [
+        'https://www.googleapis.com/auth/cloud-platform',
+        'https://www.googleapis.com/auth/monitoring',
+        'https://www.googleapis.com/auth/monitoring.read',
+        'https://www.googleapis.com/auth/monitoring.write',
+    ];
+
+    private static $folderNameTemplate;
+
+    private static $folderMetricDescriptorNameTemplate;
+
+    private static $folderMonitoredResourceDescriptorNameTemplate;
+
+    private static $metricDescriptorNameTemplate;
+
+    private static $monitoredResourceDescriptorNameTemplate;
+
+    private static $organizationNameTemplate;
+
+    private static $organizationMetricDescriptorNameTemplate;
+
+    private static $organizationMonitoredResourceDescriptorNameTemplate;
+
+    private static $projectNameTemplate;
+
+    private static $projectMetricDescriptorNameTemplate;
+
+    private static $projectMonitoredResourceDescriptorNameTemplate;
+
+    private static $workspaceNameTemplate;
+
+    private static $pathTemplateMap;
+
+    private static function getClientDefaults()
+    {
+        return [
+            'serviceName' => self::SERVICE_NAME,
+            'apiEndpoint' => self::SERVICE_ADDRESS . ':' . self::DEFAULT_SERVICE_PORT,
+            'clientConfig' => __DIR__ . '/../resources/metric_service_client_config.json',
+            'descriptorsConfigPath' => __DIR__ . '/../resources/metric_service_descriptor_config.php',
+            'gcpApiConfigPath' => __DIR__ . '/../resources/metric_service_grpc_config.json',
+            'credentialsConfig' => [
+                'defaultScopes' => self::$serviceScopes,
+            ],
+            'transportConfig' => [
+                'rest' => [
+                    'restClientConfigPath' => __DIR__ . '/../resources/metric_service_rest_client_config.php',
+                ],
+            ],
+        ];
+    }
+
+    private static function getFolderNameTemplate()
+    {
+        if (self::$folderNameTemplate == null) {
+            self::$folderNameTemplate = new PathTemplate('folders/{folder}');
+        }
+
+        return self::$folderNameTemplate;
+    }
+
+    private static function getFolderMetricDescriptorNameTemplate()
+    {
+        if (self::$folderMetricDescriptorNameTemplate == null) {
+            self::$folderMetricDescriptorNameTemplate = new PathTemplate('folders/{folder}/metricDescriptors/{metric_descriptor=**}');
+        }
+
+        return self::$folderMetricDescriptorNameTemplate;
+    }
+
+    private static function getFolderMonitoredResourceDescriptorNameTemplate()
+    {
+        if (self::$folderMonitoredResourceDescriptorNameTemplate == null) {
+            self::$folderMonitoredResourceDescriptorNameTemplate = new PathTemplate('folders/{folder}/monitoredResourceDescriptors/{monitored_resource_descriptor}');
+        }
+
+        return self::$folderMonitoredResourceDescriptorNameTemplate;
+    }
+
+    private static function getMetricDescriptorNameTemplate()
+    {
+        if (self::$metricDescriptorNameTemplate == null) {
+            self::$metricDescriptorNameTemplate = new PathTemplate('projects/{project}/metricDescriptors/{metric_descriptor=**}');
+        }
+
+        return self::$metricDescriptorNameTemplate;
+    }
+
+    private static function getMonitoredResourceDescriptorNameTemplate()
+    {
+        if (self::$monitoredResourceDescriptorNameTemplate == null) {
+            self::$monitoredResourceDescriptorNameTemplate = new PathTemplate('projects/{project}/monitoredResourceDescriptors/{monitored_resource_descriptor}');
+        }
+
+        return self::$monitoredResourceDescriptorNameTemplate;
+    }
+
+    private static function getOrganizationNameTemplate()
+    {
+        if (self::$organizationNameTemplate == null) {
+            self::$organizationNameTemplate = new PathTemplate('organizations/{organization}');
+        }
+
+        return self::$organizationNameTemplate;
+    }
+
+    private static function getOrganizationMetricDescriptorNameTemplate()
+    {
+        if (self::$organizationMetricDescriptorNameTemplate == null) {
+            self::$organizationMetricDescriptorNameTemplate = new PathTemplate('organizations/{organization}/metricDescriptors/{metric_descriptor=**}');
+        }
+
+        return self::$organizationMetricDescriptorNameTemplate;
+    }
+
+    private static function getOrganizationMonitoredResourceDescriptorNameTemplate()
+    {
+        if (self::$organizationMonitoredResourceDescriptorNameTemplate == null) {
+            self::$organizationMonitoredResourceDescriptorNameTemplate = new PathTemplate('organizations/{organization}/monitoredResourceDescriptors/{monitored_resource_descriptor}');
+        }
+
+        return self::$organizationMonitoredResourceDescriptorNameTemplate;
+    }
+
+    private static function getProjectNameTemplate()
+    {
+        if (self::$projectNameTemplate == null) {
+            self::$projectNameTemplate = new PathTemplate('projects/{project}');
+        }
+
+        return self::$projectNameTemplate;
+    }
+
+    private static function getProjectMetricDescriptorNameTemplate()
+    {
+        if (self::$projectMetricDescriptorNameTemplate == null) {
+            self::$projectMetricDescriptorNameTemplate = new PathTemplate('projects/{project}/metricDescriptors/{metric_descriptor=**}');
+        }
+
+        return self::$projectMetricDescriptorNameTemplate;
+    }
+
+    private static function getProjectMonitoredResourceDescriptorNameTemplate()
+    {
+        if (self::$projectMonitoredResourceDescriptorNameTemplate == null) {
+            self::$projectMonitoredResourceDescriptorNameTemplate = new PathTemplate('projects/{project}/monitoredResourceDescriptors/{monitored_resource_descriptor}');
+        }
+
+        return self::$projectMonitoredResourceDescriptorNameTemplate;
+    }
+
+    private static function getWorkspaceNameTemplate()
+    {
+        if (self::$workspaceNameTemplate == null) {
+            self::$workspaceNameTemplate = new PathTemplate('projects/{project}');
+        }
+
+        return self::$workspaceNameTemplate;
+    }
+
+    private static function getPathTemplateMap()
+    {
+        if (self::$pathTemplateMap == null) {
+            self::$pathTemplateMap = [
+                'folder' => self::getFolderNameTemplate(),
+                'folderMetricDescriptor' => self::getFolderMetricDescriptorNameTemplate(),
+                'folderMonitoredResourceDescriptor' => self::getFolderMonitoredResourceDescriptorNameTemplate(),
+                'metricDescriptor' => self::getMetricDescriptorNameTemplate(),
+                'monitoredResourceDescriptor' => self::getMonitoredResourceDescriptorNameTemplate(),
+                'organization' => self::getOrganizationNameTemplate(),
+                'organizationMetricDescriptor' => self::getOrganizationMetricDescriptorNameTemplate(),
+                'organizationMonitoredResourceDescriptor' => self::getOrganizationMonitoredResourceDescriptorNameTemplate(),
+                'project' => self::getProjectNameTemplate(),
+                'projectMetricDescriptor' => self::getProjectMetricDescriptorNameTemplate(),
+                'projectMonitoredResourceDescriptor' => self::getProjectMonitoredResourceDescriptorNameTemplate(),
+                'workspace' => self::getWorkspaceNameTemplate(),
+            ];
+        }
+
+        return self::$pathTemplateMap;
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a folder
+     * resource.
+     *
+     * @param string $folder
+     *
+     * @return string The formatted folder resource.
+     */
+    public static function folderName($folder)
+    {
+        return self::getFolderNameTemplate()->render([
+            'folder' => $folder,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * folder_metric_descriptor resource.
+     *
+     * @param string $folder
+     * @param string $metricDescriptor
+     *
+     * @return string The formatted folder_metric_descriptor resource.
+     */
+    public static function folderMetricDescriptorName($folder, $metricDescriptor)
+    {
+        return self::getFolderMetricDescriptorNameTemplate()->render([
+            'folder' => $folder,
+            'metric_descriptor' => $metricDescriptor,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * folder_monitored_resource_descriptor resource.
+     *
+     * @param string $folder
+     * @param string $monitoredResourceDescriptor
+     *
+     * @return string The formatted folder_monitored_resource_descriptor resource.
+     */
+    public static function folderMonitoredResourceDescriptorName($folder, $monitoredResourceDescriptor)
+    {
+        return self::getFolderMonitoredResourceDescriptorNameTemplate()->render([
+            'folder' => $folder,
+            'monitored_resource_descriptor' => $monitoredResourceDescriptor,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * metric_descriptor resource.
+     *
+     * @param string $project
+     * @param string $metricDescriptor
+     *
+     * @return string The formatted metric_descriptor resource.
+     */
+    public static function metricDescriptorName($project, $metricDescriptor)
+    {
+        return self::getMetricDescriptorNameTemplate()->render([
+            'project' => $project,
+            'metric_descriptor' => $metricDescriptor,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * monitored_resource_descriptor resource.
+     *
+     * @param string $project
+     * @param string $monitoredResourceDescriptor
+     *
+     * @return string The formatted monitored_resource_descriptor resource.
+     */
+    public static function monitoredResourceDescriptorName($project, $monitoredResourceDescriptor)
+    {
+        return self::getMonitoredResourceDescriptorNameTemplate()->render([
+            'project' => $project,
+            'monitored_resource_descriptor' => $monitoredResourceDescriptor,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a organization
+     * resource.
+     *
+     * @param string $organization
+     *
+     * @return string The formatted organization resource.
+     */
+    public static function organizationName($organization)
+    {
+        return self::getOrganizationNameTemplate()->render([
+            'organization' => $organization,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * organization_metric_descriptor resource.
+     *
+     * @param string $organization
+     * @param string $metricDescriptor
+     *
+     * @return string The formatted organization_metric_descriptor resource.
+     */
+    public static function organizationMetricDescriptorName($organization, $metricDescriptor)
+    {
+        return self::getOrganizationMetricDescriptorNameTemplate()->render([
+            'organization' => $organization,
+            'metric_descriptor' => $metricDescriptor,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * organization_monitored_resource_descriptor resource.
+     *
+     * @param string $organization
+     * @param string $monitoredResourceDescriptor
+     *
+     * @return string The formatted organization_monitored_resource_descriptor resource.
+     */
+    public static function organizationMonitoredResourceDescriptorName($organization, $monitoredResourceDescriptor)
+    {
+        return self::getOrganizationMonitoredResourceDescriptorNameTemplate()->render([
+            'organization' => $organization,
+            'monitored_resource_descriptor' => $monitoredResourceDescriptor,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a project
+     * resource.
+     *
+     * @param string $project
+     *
+     * @return string The formatted project resource.
+     */
+    public static function projectName($project)
+    {
+        return self::getProjectNameTemplate()->render([
+            'project' => $project,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * project_metric_descriptor resource.
+     *
+     * @param string $project
+     * @param string $metricDescriptor
+     *
+     * @return string The formatted project_metric_descriptor resource.
+     */
+    public static function projectMetricDescriptorName($project, $metricDescriptor)
+    {
+        return self::getProjectMetricDescriptorNameTemplate()->render([
+            'project' => $project,
+            'metric_descriptor' => $metricDescriptor,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * project_monitored_resource_descriptor resource.
+     *
+     * @param string $project
+     * @param string $monitoredResourceDescriptor
+     *
+     * @return string The formatted project_monitored_resource_descriptor resource.
+     */
+    public static function projectMonitoredResourceDescriptorName($project, $monitoredResourceDescriptor)
+    {
+        return self::getProjectMonitoredResourceDescriptorNameTemplate()->render([
+            'project' => $project,
+            'monitored_resource_descriptor' => $monitoredResourceDescriptor,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a workspace
+     * resource.
+     *
+     * @param string $project
+     *
+     * @return string The formatted workspace resource.
+     */
+    public static function workspaceName($project)
+    {
+        return self::getWorkspaceNameTemplate()->render([
+            'project' => $project,
+        ]);
+    }
+
+    /**
+     * Parses a formatted name string and returns an associative array of the components in the name.
+     * The following name formats are supported:
+     * Template: Pattern
+     * - folder: folders/{folder}
+     * - folderMetricDescriptor: folders/{folder}/metricDescriptors/{metric_descriptor=**}
+     * - folderMonitoredResourceDescriptor: folders/{folder}/monitoredResourceDescriptors/{monitored_resource_descriptor}
+     * - metricDescriptor: projects/{project}/metricDescriptors/{metric_descriptor=**}
+     * - monitoredResourceDescriptor: projects/{project}/monitoredResourceDescriptors/{monitored_resource_descriptor}
+     * - organization: organizations/{organization}
+     * - organizationMetricDescriptor: organizations/{organization}/metricDescriptors/{metric_descriptor=**}
+     * - organizationMonitoredResourceDescriptor: organizations/{organization}/monitoredResourceDescriptors/{monitored_resource_descriptor}
+     * - project: projects/{project}
+     * - projectMetricDescriptor: projects/{project}/metricDescriptors/{metric_descriptor=**}
+     * - projectMonitoredResourceDescriptor: projects/{project}/monitoredResourceDescriptors/{monitored_resource_descriptor}
+     * - workspace: projects/{project}
+     *
+     * The optional $template argument can be supplied to specify a particular pattern,
+     * and must match one of the templates listed above. If no $template argument is
+     * provided, or if the $template argument does not match one of the templates
+     * listed, then parseName will check each of the supported templates, and return
+     * the first match.
+     *
+     * @param string $formattedName The formatted name string
+     * @param string $template      Optional name of template to match
+     *
+     * @return array An associative array from name component IDs to component values.
+     *
+     * @throws ValidationException If $formattedName could not be matched.
+     */
+    public static function parseName($formattedName, $template = null)
+    {
+        $templateMap = self::getPathTemplateMap();
+        if ($template) {
+            if (!isset($templateMap[$template])) {
+                throw new ValidationException("Template name $template does not exist");
+            }
+
+            return $templateMap[$template]->match($formattedName);
+        }
+
+        foreach ($templateMap as $templateName => $pathTemplate) {
+            try {
+                return $pathTemplate->match($formattedName);
+            } catch (ValidationException $ex) {
+                // Swallow the exception to continue trying other path templates
+            }
+        }
+
+        throw new ValidationException("Input did not match any known format. Input: $formattedName");
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $options {
+     *     Optional. Options for configuring the service API wrapper.
+     *
+     *     @type string $apiEndpoint
+     *           The address of the API remote host. May optionally include the port, formatted
+     *           as "<uri>:<port>". Default 'monitoring.googleapis.com:443'.
+     *     @type string|array|FetchAuthTokenInterface|CredentialsWrapper $credentials
+     *           The credentials to be used by the client to authorize API calls. This option
+     *           accepts either a path to a credentials file, or a decoded credentials file as a
+     *           PHP array.
+     *           *Advanced usage*: In addition, this option can also accept a pre-constructed
+     *           {@see \Google\Auth\FetchAuthTokenInterface} object or
+     *           {@see \Google\ApiCore\CredentialsWrapper} object. Note that when one of these
+     *           objects are provided, any settings in $credentialsConfig will be ignored.
+     *     @type array $credentialsConfig
+     *           Options used to configure credentials, including auth token caching, for the
+     *           client. For a full list of supporting configuration options, see
+     *           {@see \Google\ApiCore\CredentialsWrapper::build()} .
+     *     @type bool $disableRetries
+     *           Determines whether or not retries defined by the client configuration should be
+     *           disabled. Defaults to `false`.
+     *     @type string|array $clientConfig
+     *           Client method configuration, including retry settings. This option can be either
+     *           a path to a JSON file, or a PHP array containing the decoded JSON data. By
+     *           default this settings points to the default client config file, which is
+     *           provided in the resources folder.
+     *     @type string|TransportInterface $transport
+     *           The transport used for executing network requests. May be either the string
+     *           `rest` or `grpc`. Defaults to `grpc` if gRPC support is detected on the system.
+     *           *Advanced usage*: Additionally, it is possible to pass in an already
+     *           instantiated {@see \Google\ApiCore\Transport\TransportInterface} object. Note
+     *           that when this object is provided, any settings in $transportConfig, and any
+     *           $apiEndpoint setting, will be ignored.
+     *     @type array $transportConfig
+     *           Configuration options that will be used to construct the transport. Options for
+     *           each supported transport type should be passed in a key for that transport. For
+     *           example:
+     *           $transportConfig = [
+     *               'grpc' => [...],
+     *               'rest' => [...],
+     *           ];
+     *           See the {@see \Google\ApiCore\Transport\GrpcTransport::build()} and
+     *           {@see \Google\ApiCore\Transport\RestTransport::build()} methods for the
+     *           supported options.
+     *     @type callable $clientCertSource
+     *           A callable which returns the client cert as a string. This can be used to
+     *           provide a certificate and private key to the transport layer for mTLS.
+     * }
+     *
+     * @throws ValidationException
+     */
+    public function __construct(array $options = [])
+    {
+        $clientOptions = $this->buildClientOptions($options);
+        $this->setClientOptions($clientOptions);
+    }
+
+    /**
+     * Creates a new metric descriptor.
+     * The creation is executed asynchronously.
+     * User-created metric descriptors define
+     * [custom metrics](https://cloud.google.com/monitoring/custom-metrics).
+     * The metric descriptor is updated if it already exists,
+     * except that metric labels are never removed.
+     *
+     * Sample code:
+     * ```
+     * $metricServiceClient = new MetricServiceClient();
+     * try {
+     *     $name = 'name';
+     *     $metricDescriptor = new MetricDescriptor();
+     *     $response = $metricServiceClient->createMetricDescriptor($name, $metricDescriptor);
+     * } finally {
+     *     $metricServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string           $name             Required. The
+     *                                           [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     *                                           to execute the request. The format is:
+     *                                           4
+     *                                           projects/[PROJECT_ID_OR_NUMBER]
+     * @param MetricDescriptor $metricDescriptor Required. The new [custom
+     *                                           metric](https://cloud.google.com/monitoring/custom-metrics) descriptor.
+     * @param array            $optionalArgs     {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Api\MetricDescriptor
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function createMetricDescriptor($name, $metricDescriptor, array $optionalArgs = [])
+    {
+        $request = new CreateMetricDescriptorRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $request->setMetricDescriptor($metricDescriptor);
+        $requestParamHeaders['name'] = $name;
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('CreateMetricDescriptor', MetricDescriptor::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Creates or adds data to one or more service time series. A service time
+     * series is a time series for a metric from a Google Cloud service. The
+     * response is empty if all time series in the request were written. If any
+     * time series could not be written, a corresponding failure message is
+     * included in the error response. This endpoint rejects writes to
+     * user-defined metrics.
+     * This method is only for use by Google Cloud services. Use
+     * [projects.timeSeries.create][google.monitoring.v3.MetricService.CreateTimeSeries]
+     * instead.
+     *
+     * Sample code:
+     * ```
+     * $metricServiceClient = new MetricServiceClient();
+     * try {
+     *     $formattedName = $metricServiceClient->projectName('[PROJECT]');
+     *     $timeSeries = [];
+     *     $metricServiceClient->createServiceTimeSeries($formattedName, $timeSeries);
+     * } finally {
+     *     $metricServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string       $name         Required. The
+     *                                   [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     *                                   to execute the request. The format is:
+     *
+     *                                   projects/[PROJECT_ID_OR_NUMBER]
+     * @param TimeSeries[] $timeSeries   Required. The new data to be added to a list of time series.
+     *                                   Adds at most one data point to each of several time series.  The new data
+     *                                   point must be more recent than any other point in its time series.  Each
+     *                                   `TimeSeries` value must fully specify a unique time series by supplying
+     *                                   all label values for the metric and the monitored resource.
+     *
+     *                                   The maximum number of `TimeSeries` objects per `Create` request is 200.
+     * @param array        $optionalArgs {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function createServiceTimeSeries($name, $timeSeries, array $optionalArgs = [])
+    {
+        $request = new CreateTimeSeriesRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $request->setTimeSeries($timeSeries);
+        $requestParamHeaders['name'] = $name;
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('CreateServiceTimeSeries', GPBEmpty::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Creates or adds data to one or more time series.
+     * The response is empty if all time series in the request were written.
+     * If any time series could not be written, a corresponding failure message is
+     * included in the error response.
+     * This method does not support
+     * [resource locations constraint of an organization
+     * policy](https://cloud.google.com/resource-manager/docs/organization-policy/defining-locations#setting_the_organization_policy).
+     *
+     * Sample code:
+     * ```
+     * $metricServiceClient = new MetricServiceClient();
+     * try {
+     *     $formattedName = $metricServiceClient->projectName('[PROJECT]');
+     *     $timeSeries = [];
+     *     $metricServiceClient->createTimeSeries($formattedName, $timeSeries);
+     * } finally {
+     *     $metricServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string       $name         Required. The
+     *                                   [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     *                                   to execute the request. The format is:
+     *
+     *                                   projects/[PROJECT_ID_OR_NUMBER]
+     * @param TimeSeries[] $timeSeries   Required. The new data to be added to a list of time series.
+     *                                   Adds at most one data point to each of several time series.  The new data
+     *                                   point must be more recent than any other point in its time series.  Each
+     *                                   `TimeSeries` value must fully specify a unique time series by supplying
+     *                                   all label values for the metric and the monitored resource.
+     *
+     *                                   The maximum number of `TimeSeries` objects per `Create` request is 200.
+     * @param array        $optionalArgs {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function createTimeSeries($name, $timeSeries, array $optionalArgs = [])
+    {
+        $request = new CreateTimeSeriesRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $request->setTimeSeries($timeSeries);
+        $requestParamHeaders['name'] = $name;
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('CreateTimeSeries', GPBEmpty::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Deletes a metric descriptor. Only user-created
+     * [custom metrics](https://cloud.google.com/monitoring/custom-metrics) can be
+     * deleted.
+     *
+     * Sample code:
+     * ```
+     * $metricServiceClient = new MetricServiceClient();
+     * try {
+     *     $formattedName = $metricServiceClient->metricDescriptorName('[PROJECT]', '[METRIC_DESCRIPTOR]');
+     *     $metricServiceClient->deleteMetricDescriptor($formattedName);
+     * } finally {
+     *     $metricServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. The metric descriptor on which to execute the request. The format
+     *                             is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]/metricDescriptors/[METRIC_ID]
+     *
+     *                             An example of `[METRIC_ID]` is:
+     *                             `"custom.googleapis.com/my_test_metric"`.
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function deleteMetricDescriptor($name, array $optionalArgs = [])
+    {
+        $request = new DeleteMetricDescriptorRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $requestParamHeaders['name'] = $name;
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('DeleteMetricDescriptor', GPBEmpty::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Gets a single metric descriptor.
+     *
+     * Sample code:
+     * ```
+     * $metricServiceClient = new MetricServiceClient();
+     * try {
+     *     $formattedName = $metricServiceClient->metricDescriptorName('[PROJECT]', '[METRIC_DESCRIPTOR]');
+     *     $response = $metricServiceClient->getMetricDescriptor($formattedName);
+     * } finally {
+     *     $metricServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. The metric descriptor on which to execute the request. The format
+     *                             is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]/metricDescriptors/[METRIC_ID]
+     *
+     *                             An example value of `[METRIC_ID]` is
+     *                             `"compute.googleapis.com/instance/disk/read_bytes_count"`.
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Api\MetricDescriptor
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function getMetricDescriptor($name, array $optionalArgs = [])
+    {
+        $request = new GetMetricDescriptorRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $requestParamHeaders['name'] = $name;
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('GetMetricDescriptor', MetricDescriptor::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Gets a single monitored resource descriptor.
+     *
+     * Sample code:
+     * ```
+     * $metricServiceClient = new MetricServiceClient();
+     * try {
+     *     $formattedName = $metricServiceClient->monitoredResourceDescriptorName('[PROJECT]', '[MONITORED_RESOURCE_DESCRIPTOR]');
+     *     $response = $metricServiceClient->getMonitoredResourceDescriptor($formattedName);
+     * } finally {
+     *     $metricServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. The monitored resource descriptor to get.  The format is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]/monitoredResourceDescriptors/[RESOURCE_TYPE]
+     *
+     *                             The `[RESOURCE_TYPE]` is a predefined type, such as
+     *                             `cloudsql_database`.
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Api\MonitoredResourceDescriptor
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function getMonitoredResourceDescriptor($name, array $optionalArgs = [])
+    {
+        $request = new GetMonitoredResourceDescriptorRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $requestParamHeaders['name'] = $name;
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('GetMonitoredResourceDescriptor', MonitoredResourceDescriptor::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Lists metric descriptors that match a filter.
+     *
+     * Sample code:
+     * ```
+     * $metricServiceClient = new MetricServiceClient();
+     * try {
+     *     $name = 'name';
+     *     // Iterate over pages of elements
+     *     $pagedResponse = $metricServiceClient->listMetricDescriptors($name);
+     *     foreach ($pagedResponse->iteratePages() as $page) {
+     *         foreach ($page as $element) {
+     *             // doSomethingWith($element);
+     *         }
+     *     }
+     *     // Alternatively:
+     *     // Iterate through all elements
+     *     $pagedResponse = $metricServiceClient->listMetricDescriptors($name);
+     *     foreach ($pagedResponse->iterateAllElements() as $element) {
+     *         // doSomethingWith($element);
+     *     }
+     * } finally {
+     *     $metricServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. The
+     *                             [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     *                             to execute the request. The format is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type string $filter
+     *           Optional. If this field is empty, all custom and
+     *           system-defined metric descriptors are returned.
+     *           Otherwise, the [filter](https://cloud.google.com/monitoring/api/v3/filters)
+     *           specifies which metric descriptors are to be
+     *           returned. For example, the following filter matches all
+     *           [custom metrics](https://cloud.google.com/monitoring/custom-metrics):
+     *
+     *           metric.type = starts_with("custom.googleapis.com/")
+     *     @type int $pageSize
+     *           The maximum number of resources contained in the underlying API
+     *           response. The API may return fewer values in a page, even if
+     *           there are additional values to be retrieved.
+     *     @type string $pageToken
+     *           A page token is used to specify a page of values to be returned.
+     *           If no page token is specified (the default), the first page
+     *           of values will be returned. Any page token used here must have
+     *           been generated by a previous call to the API.
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\ApiCore\PagedListResponse
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function listMetricDescriptors($name, array $optionalArgs = [])
+    {
+        $request = new ListMetricDescriptorsRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $requestParamHeaders['name'] = $name;
+        if (isset($optionalArgs['filter'])) {
+            $request->setFilter($optionalArgs['filter']);
+        }
+
+        if (isset($optionalArgs['pageSize'])) {
+            $request->setPageSize($optionalArgs['pageSize']);
+        }
+
+        if (isset($optionalArgs['pageToken'])) {
+            $request->setPageToken($optionalArgs['pageToken']);
+        }
+
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->getPagedListResponse('ListMetricDescriptors', $optionalArgs, ListMetricDescriptorsResponse::class, $request);
+    }
+
+    /**
+     * Lists monitored resource descriptors that match a filter.
+     *
+     * Sample code:
+     * ```
+     * $metricServiceClient = new MetricServiceClient();
+     * try {
+     *     $name = 'name';
+     *     // Iterate over pages of elements
+     *     $pagedResponse = $metricServiceClient->listMonitoredResourceDescriptors($name);
+     *     foreach ($pagedResponse->iteratePages() as $page) {
+     *         foreach ($page as $element) {
+     *             // doSomethingWith($element);
+     *         }
+     *     }
+     *     // Alternatively:
+     *     // Iterate through all elements
+     *     $pagedResponse = $metricServiceClient->listMonitoredResourceDescriptors($name);
+     *     foreach ($pagedResponse->iterateAllElements() as $element) {
+     *         // doSomethingWith($element);
+     *     }
+     * } finally {
+     *     $metricServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. The
+     *                             [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     *                             to execute the request. The format is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type string $filter
+     *           An optional [filter](https://cloud.google.com/monitoring/api/v3/filters)
+     *           describing the descriptors to be returned.  The filter can reference the
+     *           descriptor's type and labels. For example, the following filter returns
+     *           only Google Compute Engine descriptors that have an `id` label:
+     *
+     *           resource.type = starts_with("gce_") AND resource.label:id
+     *     @type int $pageSize
+     *           The maximum number of resources contained in the underlying API
+     *           response. The API may return fewer values in a page, even if
+     *           there are additional values to be retrieved.
+     *     @type string $pageToken
+     *           A page token is used to specify a page of values to be returned.
+     *           If no page token is specified (the default), the first page
+     *           of values will be returned. Any page token used here must have
+     *           been generated by a previous call to the API.
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\ApiCore\PagedListResponse
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function listMonitoredResourceDescriptors($name, array $optionalArgs = [])
+    {
+        $request = new ListMonitoredResourceDescriptorsRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $requestParamHeaders['name'] = $name;
+        if (isset($optionalArgs['filter'])) {
+            $request->setFilter($optionalArgs['filter']);
+        }
+
+        if (isset($optionalArgs['pageSize'])) {
+            $request->setPageSize($optionalArgs['pageSize']);
+        }
+
+        if (isset($optionalArgs['pageToken'])) {
+            $request->setPageToken($optionalArgs['pageToken']);
+        }
+
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->getPagedListResponse('ListMonitoredResourceDescriptors', $optionalArgs, ListMonitoredResourceDescriptorsResponse::class, $request);
+    }
+
+    /**
+     * Lists time series that match a filter.
+     *
+     * Sample code:
+     * ```
+     * $metricServiceClient = new MetricServiceClient();
+     * try {
+     *     $formattedName = $metricServiceClient->workspaceName('[PROJECT]');
+     *     $filter = 'filter';
+     *     $interval = new TimeInterval();
+     *     $view = TimeSeriesView::FULL;
+     *     // Iterate over pages of elements
+     *     $pagedResponse = $metricServiceClient->listTimeSeries($formattedName, $filter, $interval, $view);
+     *     foreach ($pagedResponse->iteratePages() as $page) {
+     *         foreach ($page as $element) {
+     *             // doSomethingWith($element);
+     *         }
+     *     }
+     *     // Alternatively:
+     *     // Iterate through all elements
+     *     $pagedResponse = $metricServiceClient->listTimeSeries($formattedName, $filter, $interval, $view);
+     *     foreach ($pagedResponse->iterateAllElements() as $element) {
+     *         // doSomethingWith($element);
+     *     }
+     * } finally {
+     *     $metricServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string       $name         Required. The
+     *                                   [project](https://cloud.google.com/monitoring/api/v3#project_name),
+     *                                   organization or folder on which to execute the request. The format is:
+     *
+     *                                   projects/[PROJECT_ID_OR_NUMBER]
+     *                                   organizations/[ORGANIZATION_ID]
+     *                                   folders/[FOLDER_ID]
+     * @param string       $filter       Required. A [monitoring
+     *                                   filter](https://cloud.google.com/monitoring/api/v3/filters) that specifies
+     *                                   which time series should be returned.  The filter must specify a single
+     *                                   metric type, and can additionally specify metric labels and other
+     *                                   information. For example:
+     *
+     *                                   metric.type = "compute.googleapis.com/instance/cpu/usage_time" AND
+     *                                   metric.labels.instance_name = "my-instance-name"
+     * @param TimeInterval $interval     Required. The time interval for which results should be returned. Only time
+     *                                   series that contain data points in the specified interval are included in
+     *                                   the response.
+     * @param int          $view         Required. Specifies which information is returned about the time series.
+     *                                   For allowed values, use constants defined on {@see \Google\Cloud\Monitoring\V3\ListTimeSeriesRequest\TimeSeriesView}
+     * @param array        $optionalArgs {
+     *     Optional.
+     *
+     *     @type Aggregation $aggregation
+     *           Specifies the alignment of data points in individual time series as
+     *           well as how to combine the retrieved time series across specified labels.
+     *
+     *           By default (if no `aggregation` is explicitly specified), the raw time
+     *           series data is returned.
+     *     @type Aggregation $secondaryAggregation
+     *           Apply a second aggregation after `aggregation` is applied. May only be
+     *           specified if `aggregation` is specified.
+     *     @type string $orderBy
+     *           Unsupported: must be left blank. The points in each time series are
+     *           currently returned in reverse time order (most recent to oldest).
+     *     @type int $pageSize
+     *           The maximum number of resources contained in the underlying API
+     *           response. The API may return fewer values in a page, even if
+     *           there are additional values to be retrieved.
+     *     @type string $pageToken
+     *           A page token is used to specify a page of values to be returned.
+     *           If no page token is specified (the default), the first page
+     *           of values will be returned. Any page token used here must have
+     *           been generated by a previous call to the API.
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\ApiCore\PagedListResponse
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function listTimeSeries($name, $filter, $interval, $view, array $optionalArgs = [])
+    {
+        $request = new ListTimeSeriesRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $request->setFilter($filter);
+        $request->setInterval($interval);
+        $request->setView($view);
+        $requestParamHeaders['name'] = $name;
+        if (isset($optionalArgs['aggregation'])) {
+            $request->setAggregation($optionalArgs['aggregation']);
+        }
+
+        if (isset($optionalArgs['secondaryAggregation'])) {
+            $request->setSecondaryAggregation($optionalArgs['secondaryAggregation']);
+        }
+
+        if (isset($optionalArgs['orderBy'])) {
+            $request->setOrderBy($optionalArgs['orderBy']);
+        }
+
+        if (isset($optionalArgs['pageSize'])) {
+            $request->setPageSize($optionalArgs['pageSize']);
+        }
+
+        if (isset($optionalArgs['pageToken'])) {
+            $request->setPageToken($optionalArgs['pageToken']);
+        }
+
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->getPagedListResponse('ListTimeSeries', $optionalArgs, ListTimeSeriesResponse::class, $request);
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/Gapic/NotificationChannelServiceGapicClient.php b/owl-bot-staging/Monitoring/v3/src/V3/Gapic/NotificationChannelServiceGapicClient.php
new file mode 100644
index 000000000000..75cf9393bd47
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/Gapic/NotificationChannelServiceGapicClient.php
@@ -0,0 +1,1075 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * Generated by gapic-generator-php from the file
+ * https://github.com/googleapis/googleapis/blob/master/google/monitoring/v3/notification_service.proto
+ * Updates to the above are reflected here through a refresh process.
+ */
+
+namespace Google\Cloud\Monitoring\V3\Gapic;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\GapicClientTrait;
+use Google\ApiCore\PathTemplate;
+use Google\ApiCore\RequestParamsHeaderDescriptor;
+use Google\ApiCore\RetrySettings;
+use Google\ApiCore\Transport\TransportInterface;
+use Google\ApiCore\ValidationException;
+use Google\Auth\FetchAuthTokenInterface;
+use Google\Cloud\Monitoring\V3\CreateNotificationChannelRequest;
+use Google\Cloud\Monitoring\V3\DeleteNotificationChannelRequest;
+use Google\Cloud\Monitoring\V3\GetNotificationChannelDescriptorRequest;
+use Google\Cloud\Monitoring\V3\GetNotificationChannelRequest;
+use Google\Cloud\Monitoring\V3\GetNotificationChannelVerificationCodeRequest;
+use Google\Cloud\Monitoring\V3\GetNotificationChannelVerificationCodeResponse;
+use Google\Cloud\Monitoring\V3\ListNotificationChannelDescriptorsRequest;
+use Google\Cloud\Monitoring\V3\ListNotificationChannelDescriptorsResponse;
+use Google\Cloud\Monitoring\V3\ListNotificationChannelsRequest;
+use Google\Cloud\Monitoring\V3\ListNotificationChannelsResponse;
+use Google\Cloud\Monitoring\V3\NotificationChannel;
+use Google\Cloud\Monitoring\V3\NotificationChannelDescriptor;
+use Google\Cloud\Monitoring\V3\SendNotificationChannelVerificationCodeRequest;
+use Google\Cloud\Monitoring\V3\UpdateNotificationChannelRequest;
+use Google\Cloud\Monitoring\V3\VerifyNotificationChannelRequest;
+use Google\Protobuf\FieldMask;
+use Google\Protobuf\GPBEmpty;
+use Google\Protobuf\Timestamp;
+
+/**
+ * Service Description: The Notification Channel API provides access to configuration that
+ * controls how messages related to incidents are sent.
+ *
+ * This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods. Sample code to get started:
+ *
+ * ```
+ * $notificationChannelServiceClient = new NotificationChannelServiceClient();
+ * try {
+ *     $name = 'name';
+ *     $notificationChannel = new NotificationChannel();
+ *     $response = $notificationChannelServiceClient->createNotificationChannel($name, $notificationChannel);
+ * } finally {
+ *     $notificationChannelServiceClient->close();
+ * }
+ * ```
+ *
+ * Many parameters require resource names to be formatted in a particular way. To
+ * assist with these names, this class includes a format method for each type of
+ * name, and additionally a parseName method to extract the individual identifiers
+ * contained within formatted names that are returned by the API.
+ *
+ * @deprecated Please use the new service client {@see \Google\Cloud\Monitoring\V3\Client\NotificationChannelServiceClient}.
+ */
+class NotificationChannelServiceGapicClient
+{
+    use GapicClientTrait;
+
+    /** The name of the service. */
+    const SERVICE_NAME = 'google.monitoring.v3.NotificationChannelService';
+
+    /**
+     * The default address of the service.
+     *
+     * @deprecated SERVICE_ADDRESS_TEMPLATE should be used instead.
+     */
+    const SERVICE_ADDRESS = 'monitoring.googleapis.com';
+
+    /** The address template of the service. */
+    private const SERVICE_ADDRESS_TEMPLATE = 'monitoring.UNIVERSE_DOMAIN';
+
+    /** The default port of the service. */
+    const DEFAULT_SERVICE_PORT = 443;
+
+    /** The name of the code generator, to be included in the agent header. */
+    const CODEGEN_NAME = 'gapic';
+
+    /** The default scopes required by the service. */
+    public static $serviceScopes = [
+        'https://www.googleapis.com/auth/cloud-platform',
+        'https://www.googleapis.com/auth/monitoring',
+        'https://www.googleapis.com/auth/monitoring.read',
+    ];
+
+    private static $folderChannelDescriptorNameTemplate;
+
+    private static $folderNotificationChannelNameTemplate;
+
+    private static $notificationChannelNameTemplate;
+
+    private static $notificationChannelDescriptorNameTemplate;
+
+    private static $organizationChannelDescriptorNameTemplate;
+
+    private static $organizationNotificationChannelNameTemplate;
+
+    private static $projectChannelDescriptorNameTemplate;
+
+    private static $projectNotificationChannelNameTemplate;
+
+    private static $pathTemplateMap;
+
+    private static function getClientDefaults()
+    {
+        return [
+            'serviceName' => self::SERVICE_NAME,
+            'apiEndpoint' => self::SERVICE_ADDRESS . ':' . self::DEFAULT_SERVICE_PORT,
+            'clientConfig' => __DIR__ . '/../resources/notification_channel_service_client_config.json',
+            'descriptorsConfigPath' => __DIR__ . '/../resources/notification_channel_service_descriptor_config.php',
+            'gcpApiConfigPath' => __DIR__ . '/../resources/notification_channel_service_grpc_config.json',
+            'credentialsConfig' => [
+                'defaultScopes' => self::$serviceScopes,
+            ],
+            'transportConfig' => [
+                'rest' => [
+                    'restClientConfigPath' => __DIR__ . '/../resources/notification_channel_service_rest_client_config.php',
+                ],
+            ],
+        ];
+    }
+
+    private static function getFolderChannelDescriptorNameTemplate()
+    {
+        if (self::$folderChannelDescriptorNameTemplate == null) {
+            self::$folderChannelDescriptorNameTemplate = new PathTemplate('folders/{folder}/notificationChannelDescriptors/{channel_descriptor}');
+        }
+
+        return self::$folderChannelDescriptorNameTemplate;
+    }
+
+    private static function getFolderNotificationChannelNameTemplate()
+    {
+        if (self::$folderNotificationChannelNameTemplate == null) {
+            self::$folderNotificationChannelNameTemplate = new PathTemplate('folders/{folder}/notificationChannels/{notification_channel}');
+        }
+
+        return self::$folderNotificationChannelNameTemplate;
+    }
+
+    private static function getNotificationChannelNameTemplate()
+    {
+        if (self::$notificationChannelNameTemplate == null) {
+            self::$notificationChannelNameTemplate = new PathTemplate('projects/{project}/notificationChannels/{notification_channel}');
+        }
+
+        return self::$notificationChannelNameTemplate;
+    }
+
+    private static function getNotificationChannelDescriptorNameTemplate()
+    {
+        if (self::$notificationChannelDescriptorNameTemplate == null) {
+            self::$notificationChannelDescriptorNameTemplate = new PathTemplate('projects/{project}/notificationChannelDescriptors/{channel_descriptor}');
+        }
+
+        return self::$notificationChannelDescriptorNameTemplate;
+    }
+
+    private static function getOrganizationChannelDescriptorNameTemplate()
+    {
+        if (self::$organizationChannelDescriptorNameTemplate == null) {
+            self::$organizationChannelDescriptorNameTemplate = new PathTemplate('organizations/{organization}/notificationChannelDescriptors/{channel_descriptor}');
+        }
+
+        return self::$organizationChannelDescriptorNameTemplate;
+    }
+
+    private static function getOrganizationNotificationChannelNameTemplate()
+    {
+        if (self::$organizationNotificationChannelNameTemplate == null) {
+            self::$organizationNotificationChannelNameTemplate = new PathTemplate('organizations/{organization}/notificationChannels/{notification_channel}');
+        }
+
+        return self::$organizationNotificationChannelNameTemplate;
+    }
+
+    private static function getProjectChannelDescriptorNameTemplate()
+    {
+        if (self::$projectChannelDescriptorNameTemplate == null) {
+            self::$projectChannelDescriptorNameTemplate = new PathTemplate('projects/{project}/notificationChannelDescriptors/{channel_descriptor}');
+        }
+
+        return self::$projectChannelDescriptorNameTemplate;
+    }
+
+    private static function getProjectNotificationChannelNameTemplate()
+    {
+        if (self::$projectNotificationChannelNameTemplate == null) {
+            self::$projectNotificationChannelNameTemplate = new PathTemplate('projects/{project}/notificationChannels/{notification_channel}');
+        }
+
+        return self::$projectNotificationChannelNameTemplate;
+    }
+
+    private static function getPathTemplateMap()
+    {
+        if (self::$pathTemplateMap == null) {
+            self::$pathTemplateMap = [
+                'folderChannelDescriptor' => self::getFolderChannelDescriptorNameTemplate(),
+                'folderNotificationChannel' => self::getFolderNotificationChannelNameTemplate(),
+                'notificationChannel' => self::getNotificationChannelNameTemplate(),
+                'notificationChannelDescriptor' => self::getNotificationChannelDescriptorNameTemplate(),
+                'organizationChannelDescriptor' => self::getOrganizationChannelDescriptorNameTemplate(),
+                'organizationNotificationChannel' => self::getOrganizationNotificationChannelNameTemplate(),
+                'projectChannelDescriptor' => self::getProjectChannelDescriptorNameTemplate(),
+                'projectNotificationChannel' => self::getProjectNotificationChannelNameTemplate(),
+            ];
+        }
+
+        return self::$pathTemplateMap;
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * folder_channel_descriptor resource.
+     *
+     * @param string $folder
+     * @param string $channelDescriptor
+     *
+     * @return string The formatted folder_channel_descriptor resource.
+     */
+    public static function folderChannelDescriptorName($folder, $channelDescriptor)
+    {
+        return self::getFolderChannelDescriptorNameTemplate()->render([
+            'folder' => $folder,
+            'channel_descriptor' => $channelDescriptor,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * folder_notification_channel resource.
+     *
+     * @param string $folder
+     * @param string $notificationChannel
+     *
+     * @return string The formatted folder_notification_channel resource.
+     */
+    public static function folderNotificationChannelName($folder, $notificationChannel)
+    {
+        return self::getFolderNotificationChannelNameTemplate()->render([
+            'folder' => $folder,
+            'notification_channel' => $notificationChannel,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * notification_channel resource.
+     *
+     * @param string $project
+     * @param string $notificationChannel
+     *
+     * @return string The formatted notification_channel resource.
+     */
+    public static function notificationChannelName($project, $notificationChannel)
+    {
+        return self::getNotificationChannelNameTemplate()->render([
+            'project' => $project,
+            'notification_channel' => $notificationChannel,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * notification_channel_descriptor resource.
+     *
+     * @param string $project
+     * @param string $channelDescriptor
+     *
+     * @return string The formatted notification_channel_descriptor resource.
+     */
+    public static function notificationChannelDescriptorName($project, $channelDescriptor)
+    {
+        return self::getNotificationChannelDescriptorNameTemplate()->render([
+            'project' => $project,
+            'channel_descriptor' => $channelDescriptor,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * organization_channel_descriptor resource.
+     *
+     * @param string $organization
+     * @param string $channelDescriptor
+     *
+     * @return string The formatted organization_channel_descriptor resource.
+     */
+    public static function organizationChannelDescriptorName($organization, $channelDescriptor)
+    {
+        return self::getOrganizationChannelDescriptorNameTemplate()->render([
+            'organization' => $organization,
+            'channel_descriptor' => $channelDescriptor,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * organization_notification_channel resource.
+     *
+     * @param string $organization
+     * @param string $notificationChannel
+     *
+     * @return string The formatted organization_notification_channel resource.
+     */
+    public static function organizationNotificationChannelName($organization, $notificationChannel)
+    {
+        return self::getOrganizationNotificationChannelNameTemplate()->render([
+            'organization' => $organization,
+            'notification_channel' => $notificationChannel,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * project_channel_descriptor resource.
+     *
+     * @param string $project
+     * @param string $channelDescriptor
+     *
+     * @return string The formatted project_channel_descriptor resource.
+     */
+    public static function projectChannelDescriptorName($project, $channelDescriptor)
+    {
+        return self::getProjectChannelDescriptorNameTemplate()->render([
+            'project' => $project,
+            'channel_descriptor' => $channelDescriptor,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * project_notification_channel resource.
+     *
+     * @param string $project
+     * @param string $notificationChannel
+     *
+     * @return string The formatted project_notification_channel resource.
+     */
+    public static function projectNotificationChannelName($project, $notificationChannel)
+    {
+        return self::getProjectNotificationChannelNameTemplate()->render([
+            'project' => $project,
+            'notification_channel' => $notificationChannel,
+        ]);
+    }
+
+    /**
+     * Parses a formatted name string and returns an associative array of the components in the name.
+     * The following name formats are supported:
+     * Template: Pattern
+     * - folderChannelDescriptor: folders/{folder}/notificationChannelDescriptors/{channel_descriptor}
+     * - folderNotificationChannel: folders/{folder}/notificationChannels/{notification_channel}
+     * - notificationChannel: projects/{project}/notificationChannels/{notification_channel}
+     * - notificationChannelDescriptor: projects/{project}/notificationChannelDescriptors/{channel_descriptor}
+     * - organizationChannelDescriptor: organizations/{organization}/notificationChannelDescriptors/{channel_descriptor}
+     * - organizationNotificationChannel: organizations/{organization}/notificationChannels/{notification_channel}
+     * - projectChannelDescriptor: projects/{project}/notificationChannelDescriptors/{channel_descriptor}
+     * - projectNotificationChannel: projects/{project}/notificationChannels/{notification_channel}
+     *
+     * The optional $template argument can be supplied to specify a particular pattern,
+     * and must match one of the templates listed above. If no $template argument is
+     * provided, or if the $template argument does not match one of the templates
+     * listed, then parseName will check each of the supported templates, and return
+     * the first match.
+     *
+     * @param string $formattedName The formatted name string
+     * @param string $template      Optional name of template to match
+     *
+     * @return array An associative array from name component IDs to component values.
+     *
+     * @throws ValidationException If $formattedName could not be matched.
+     */
+    public static function parseName($formattedName, $template = null)
+    {
+        $templateMap = self::getPathTemplateMap();
+        if ($template) {
+            if (!isset($templateMap[$template])) {
+                throw new ValidationException("Template name $template does not exist");
+            }
+
+            return $templateMap[$template]->match($formattedName);
+        }
+
+        foreach ($templateMap as $templateName => $pathTemplate) {
+            try {
+                return $pathTemplate->match($formattedName);
+            } catch (ValidationException $ex) {
+                // Swallow the exception to continue trying other path templates
+            }
+        }
+
+        throw new ValidationException("Input did not match any known format. Input: $formattedName");
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $options {
+     *     Optional. Options for configuring the service API wrapper.
+     *
+     *     @type string $apiEndpoint
+     *           The address of the API remote host. May optionally include the port, formatted
+     *           as "<uri>:<port>". Default 'monitoring.googleapis.com:443'.
+     *     @type string|array|FetchAuthTokenInterface|CredentialsWrapper $credentials
+     *           The credentials to be used by the client to authorize API calls. This option
+     *           accepts either a path to a credentials file, or a decoded credentials file as a
+     *           PHP array.
+     *           *Advanced usage*: In addition, this option can also accept a pre-constructed
+     *           {@see \Google\Auth\FetchAuthTokenInterface} object or
+     *           {@see \Google\ApiCore\CredentialsWrapper} object. Note that when one of these
+     *           objects are provided, any settings in $credentialsConfig will be ignored.
+     *     @type array $credentialsConfig
+     *           Options used to configure credentials, including auth token caching, for the
+     *           client. For a full list of supporting configuration options, see
+     *           {@see \Google\ApiCore\CredentialsWrapper::build()} .
+     *     @type bool $disableRetries
+     *           Determines whether or not retries defined by the client configuration should be
+     *           disabled. Defaults to `false`.
+     *     @type string|array $clientConfig
+     *           Client method configuration, including retry settings. This option can be either
+     *           a path to a JSON file, or a PHP array containing the decoded JSON data. By
+     *           default this settings points to the default client config file, which is
+     *           provided in the resources folder.
+     *     @type string|TransportInterface $transport
+     *           The transport used for executing network requests. May be either the string
+     *           `rest` or `grpc`. Defaults to `grpc` if gRPC support is detected on the system.
+     *           *Advanced usage*: Additionally, it is possible to pass in an already
+     *           instantiated {@see \Google\ApiCore\Transport\TransportInterface} object. Note
+     *           that when this object is provided, any settings in $transportConfig, and any
+     *           $apiEndpoint setting, will be ignored.
+     *     @type array $transportConfig
+     *           Configuration options that will be used to construct the transport. Options for
+     *           each supported transport type should be passed in a key for that transport. For
+     *           example:
+     *           $transportConfig = [
+     *               'grpc' => [...],
+     *               'rest' => [...],
+     *           ];
+     *           See the {@see \Google\ApiCore\Transport\GrpcTransport::build()} and
+     *           {@see \Google\ApiCore\Transport\RestTransport::build()} methods for the
+     *           supported options.
+     *     @type callable $clientCertSource
+     *           A callable which returns the client cert as a string. This can be used to
+     *           provide a certificate and private key to the transport layer for mTLS.
+     * }
+     *
+     * @throws ValidationException
+     */
+    public function __construct(array $options = [])
+    {
+        $clientOptions = $this->buildClientOptions($options);
+        $this->setClientOptions($clientOptions);
+    }
+
+    /**
+     * Creates a new notification channel, representing a single notification
+     * endpoint such as an email address, SMS number, or PagerDuty service.
+     *
+     * Design your application to single-thread API calls that modify the state of
+     * notification channels in a single project. This includes calls to
+     * CreateNotificationChannel, DeleteNotificationChannel and
+     * UpdateNotificationChannel.
+     *
+     * Sample code:
+     * ```
+     * $notificationChannelServiceClient = new NotificationChannelServiceClient();
+     * try {
+     *     $name = 'name';
+     *     $notificationChannel = new NotificationChannel();
+     *     $response = $notificationChannelServiceClient->createNotificationChannel($name, $notificationChannel);
+     * } finally {
+     *     $notificationChannelServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string              $name                Required. The
+     *                                                 [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     *                                                 to execute the request. The format is:
+     *
+     *                                                 projects/[PROJECT_ID_OR_NUMBER]
+     *
+     *                                                 This names the container into which the channel will be
+     *                                                 written, this does not name the newly created channel. The resulting
+     *                                                 channel's name will have a normalized version of this field as a prefix,
+     *                                                 but will add `/notificationChannels/[CHANNEL_ID]` to identify the channel.
+     * @param NotificationChannel $notificationChannel Required. The definition of the `NotificationChannel` to create.
+     * @param array               $optionalArgs        {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Cloud\Monitoring\V3\NotificationChannel
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function createNotificationChannel($name, $notificationChannel, array $optionalArgs = [])
+    {
+        $request = new CreateNotificationChannelRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $request->setNotificationChannel($notificationChannel);
+        $requestParamHeaders['name'] = $name;
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('CreateNotificationChannel', NotificationChannel::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Deletes a notification channel.
+     *
+     * Design your application to single-thread API calls that modify the state of
+     * notification channels in a single project. This includes calls to
+     * CreateNotificationChannel, DeleteNotificationChannel and
+     * UpdateNotificationChannel.
+     *
+     * Sample code:
+     * ```
+     * $notificationChannelServiceClient = new NotificationChannelServiceClient();
+     * try {
+     *     $formattedName = $notificationChannelServiceClient->notificationChannelName('[PROJECT]', '[NOTIFICATION_CHANNEL]');
+     *     $notificationChannelServiceClient->deleteNotificationChannel($formattedName);
+     * } finally {
+     *     $notificationChannelServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. The channel for which to execute the request. The format is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]/notificationChannels/[CHANNEL_ID]
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type bool $force
+     *           If true, the notification channel will be deleted regardless of its
+     *           use in alert policies (the policies will be updated to remove the
+     *           channel). If false, this operation will fail if the notification channel
+     *           is referenced by existing alerting policies.
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function deleteNotificationChannel($name, array $optionalArgs = [])
+    {
+        $request = new DeleteNotificationChannelRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $requestParamHeaders['name'] = $name;
+        if (isset($optionalArgs['force'])) {
+            $request->setForce($optionalArgs['force']);
+        }
+
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('DeleteNotificationChannel', GPBEmpty::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Gets a single notification channel. The channel includes the relevant
+     * configuration details with which the channel was created. However, the
+     * response may truncate or omit passwords, API keys, or other private key
+     * matter and thus the response may not be 100% identical to the information
+     * that was supplied in the call to the create method.
+     *
+     * Sample code:
+     * ```
+     * $notificationChannelServiceClient = new NotificationChannelServiceClient();
+     * try {
+     *     $formattedName = $notificationChannelServiceClient->notificationChannelName('[PROJECT]', '[NOTIFICATION_CHANNEL]');
+     *     $response = $notificationChannelServiceClient->getNotificationChannel($formattedName);
+     * } finally {
+     *     $notificationChannelServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. The channel for which to execute the request. The format is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]/notificationChannels/[CHANNEL_ID]
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Cloud\Monitoring\V3\NotificationChannel
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function getNotificationChannel($name, array $optionalArgs = [])
+    {
+        $request = new GetNotificationChannelRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $requestParamHeaders['name'] = $name;
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('GetNotificationChannel', NotificationChannel::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Gets a single channel descriptor. The descriptor indicates which fields
+     * are expected / permitted for a notification channel of the given type.
+     *
+     * Sample code:
+     * ```
+     * $notificationChannelServiceClient = new NotificationChannelServiceClient();
+     * try {
+     *     $formattedName = $notificationChannelServiceClient->notificationChannelDescriptorName('[PROJECT]', '[CHANNEL_DESCRIPTOR]');
+     *     $response = $notificationChannelServiceClient->getNotificationChannelDescriptor($formattedName);
+     * } finally {
+     *     $notificationChannelServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. The channel type for which to execute the request. The format is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]/notificationChannelDescriptors/[CHANNEL_TYPE]
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Cloud\Monitoring\V3\NotificationChannelDescriptor
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function getNotificationChannelDescriptor($name, array $optionalArgs = [])
+    {
+        $request = new GetNotificationChannelDescriptorRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $requestParamHeaders['name'] = $name;
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('GetNotificationChannelDescriptor', NotificationChannelDescriptor::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Requests a verification code for an already verified channel that can then
+     * be used in a call to VerifyNotificationChannel() on a different channel
+     * with an equivalent identity in the same or in a different project. This
+     * makes it possible to copy a channel between projects without requiring
+     * manual reverification of the channel. If the channel is not in the
+     * verified state, this method will fail (in other words, this may only be
+     * used if the SendNotificationChannelVerificationCode and
+     * VerifyNotificationChannel paths have already been used to put the given
+     * channel into the verified state).
+     *
+     * There is no guarantee that the verification codes returned by this method
+     * will be of a similar structure or form as the ones that are delivered
+     * to the channel via SendNotificationChannelVerificationCode; while
+     * VerifyNotificationChannel() will recognize both the codes delivered via
+     * SendNotificationChannelVerificationCode() and returned from
+     * GetNotificationChannelVerificationCode(), it is typically the case that
+     * the verification codes delivered via
+     * SendNotificationChannelVerificationCode() will be shorter and also
+     * have a shorter expiration (e.g. codes such as "G-123456") whereas
+     * GetVerificationCode() will typically return a much longer, websafe base
+     * 64 encoded string that has a longer expiration time.
+     *
+     * Sample code:
+     * ```
+     * $notificationChannelServiceClient = new NotificationChannelServiceClient();
+     * try {
+     *     $formattedName = $notificationChannelServiceClient->notificationChannelName('[PROJECT]', '[NOTIFICATION_CHANNEL]');
+     *     $response = $notificationChannelServiceClient->getNotificationChannelVerificationCode($formattedName);
+     * } finally {
+     *     $notificationChannelServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. The notification channel for which a verification code is to be
+     *                             generated and retrieved. This must name a channel that is already verified;
+     *                             if the specified channel is not verified, the request will fail.
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type Timestamp $expireTime
+     *           The desired expiration time. If specified, the API will guarantee that
+     *           the returned code will not be valid after the specified timestamp;
+     *           however, the API cannot guarantee that the returned code will be
+     *           valid for at least as long as the requested time (the API puts an upper
+     *           bound on the amount of time for which a code may be valid). If omitted,
+     *           a default expiration will be used, which may be less than the max
+     *           permissible expiration (so specifying an expiration may extend the
+     *           code's lifetime over omitting an expiration, even though the API does
+     *           impose an upper limit on the maximum expiration that is permitted).
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Cloud\Monitoring\V3\GetNotificationChannelVerificationCodeResponse
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function getNotificationChannelVerificationCode($name, array $optionalArgs = [])
+    {
+        $request = new GetNotificationChannelVerificationCodeRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $requestParamHeaders['name'] = $name;
+        if (isset($optionalArgs['expireTime'])) {
+            $request->setExpireTime($optionalArgs['expireTime']);
+        }
+
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('GetNotificationChannelVerificationCode', GetNotificationChannelVerificationCodeResponse::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Lists the descriptors for supported channel types. The use of descriptors
+     * makes it possible for new channel types to be dynamically added.
+     *
+     * Sample code:
+     * ```
+     * $notificationChannelServiceClient = new NotificationChannelServiceClient();
+     * try {
+     *     $name = 'name';
+     *     // Iterate over pages of elements
+     *     $pagedResponse = $notificationChannelServiceClient->listNotificationChannelDescriptors($name);
+     *     foreach ($pagedResponse->iteratePages() as $page) {
+     *         foreach ($page as $element) {
+     *             // doSomethingWith($element);
+     *         }
+     *     }
+     *     // Alternatively:
+     *     // Iterate through all elements
+     *     $pagedResponse = $notificationChannelServiceClient->listNotificationChannelDescriptors($name);
+     *     foreach ($pagedResponse->iterateAllElements() as $element) {
+     *         // doSomethingWith($element);
+     *     }
+     * } finally {
+     *     $notificationChannelServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. The REST resource name of the parent from which to retrieve
+     *                             the notification channel descriptors. The expected syntax is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]
+     *
+     *                             Note that this
+     *                             [names](https://cloud.google.com/monitoring/api/v3#project_name) the parent
+     *                             container in which to look for the descriptors; to retrieve a single
+     *                             descriptor by name, use the
+     *                             [GetNotificationChannelDescriptor][google.monitoring.v3.NotificationChannelService.GetNotificationChannelDescriptor]
+     *                             operation, instead.
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type int $pageSize
+     *           The maximum number of resources contained in the underlying API
+     *           response. The API may return fewer values in a page, even if
+     *           there are additional values to be retrieved.
+     *     @type string $pageToken
+     *           A page token is used to specify a page of values to be returned.
+     *           If no page token is specified (the default), the first page
+     *           of values will be returned. Any page token used here must have
+     *           been generated by a previous call to the API.
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\ApiCore\PagedListResponse
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function listNotificationChannelDescriptors($name, array $optionalArgs = [])
+    {
+        $request = new ListNotificationChannelDescriptorsRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $requestParamHeaders['name'] = $name;
+        if (isset($optionalArgs['pageSize'])) {
+            $request->setPageSize($optionalArgs['pageSize']);
+        }
+
+        if (isset($optionalArgs['pageToken'])) {
+            $request->setPageToken($optionalArgs['pageToken']);
+        }
+
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->getPagedListResponse('ListNotificationChannelDescriptors', $optionalArgs, ListNotificationChannelDescriptorsResponse::class, $request);
+    }
+
+    /**
+     * Lists the notification channels that have been created for the project.
+     * To list the types of notification channels that are supported, use
+     * the `ListNotificationChannelDescriptors` method.
+     *
+     * Sample code:
+     * ```
+     * $notificationChannelServiceClient = new NotificationChannelServiceClient();
+     * try {
+     *     $name = 'name';
+     *     // Iterate over pages of elements
+     *     $pagedResponse = $notificationChannelServiceClient->listNotificationChannels($name);
+     *     foreach ($pagedResponse->iteratePages() as $page) {
+     *         foreach ($page as $element) {
+     *             // doSomethingWith($element);
+     *         }
+     *     }
+     *     // Alternatively:
+     *     // Iterate through all elements
+     *     $pagedResponse = $notificationChannelServiceClient->listNotificationChannels($name);
+     *     foreach ($pagedResponse->iterateAllElements() as $element) {
+     *         // doSomethingWith($element);
+     *     }
+     * } finally {
+     *     $notificationChannelServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. The
+     *                             [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     *                             to execute the request. The format is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]
+     *
+     *                             This names the container
+     *                             in which to look for the notification channels; it does not name a
+     *                             specific channel. To query a specific channel by REST resource name, use
+     *                             the
+     *                             [`GetNotificationChannel`][google.monitoring.v3.NotificationChannelService.GetNotificationChannel]
+     *                             operation.
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type string $filter
+     *           Optional. If provided, this field specifies the criteria that must be met
+     *           by notification channels to be included in the response.
+     *
+     *           For more details, see [sorting and
+     *           filtering](https://cloud.google.com/monitoring/api/v3/sorting-and-filtering).
+     *     @type string $orderBy
+     *           Optional. A comma-separated list of fields by which to sort the result.
+     *           Supports the same set of fields as in `filter`. Entries can be prefixed
+     *           with a minus sign to sort in descending rather than ascending order.
+     *
+     *           For more details, see [sorting and
+     *           filtering](https://cloud.google.com/monitoring/api/v3/sorting-and-filtering).
+     *     @type int $pageSize
+     *           The maximum number of resources contained in the underlying API
+     *           response. The API may return fewer values in a page, even if
+     *           there are additional values to be retrieved.
+     *     @type string $pageToken
+     *           A page token is used to specify a page of values to be returned.
+     *           If no page token is specified (the default), the first page
+     *           of values will be returned. Any page token used here must have
+     *           been generated by a previous call to the API.
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\ApiCore\PagedListResponse
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function listNotificationChannels($name, array $optionalArgs = [])
+    {
+        $request = new ListNotificationChannelsRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $requestParamHeaders['name'] = $name;
+        if (isset($optionalArgs['filter'])) {
+            $request->setFilter($optionalArgs['filter']);
+        }
+
+        if (isset($optionalArgs['orderBy'])) {
+            $request->setOrderBy($optionalArgs['orderBy']);
+        }
+
+        if (isset($optionalArgs['pageSize'])) {
+            $request->setPageSize($optionalArgs['pageSize']);
+        }
+
+        if (isset($optionalArgs['pageToken'])) {
+            $request->setPageToken($optionalArgs['pageToken']);
+        }
+
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->getPagedListResponse('ListNotificationChannels', $optionalArgs, ListNotificationChannelsResponse::class, $request);
+    }
+
+    /**
+     * Causes a verification code to be delivered to the channel. The code
+     * can then be supplied in `VerifyNotificationChannel` to verify the channel.
+     *
+     * Sample code:
+     * ```
+     * $notificationChannelServiceClient = new NotificationChannelServiceClient();
+     * try {
+     *     $formattedName = $notificationChannelServiceClient->notificationChannelName('[PROJECT]', '[NOTIFICATION_CHANNEL]');
+     *     $notificationChannelServiceClient->sendNotificationChannelVerificationCode($formattedName);
+     * } finally {
+     *     $notificationChannelServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. The notification channel to which to send a verification code.
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function sendNotificationChannelVerificationCode($name, array $optionalArgs = [])
+    {
+        $request = new SendNotificationChannelVerificationCodeRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $requestParamHeaders['name'] = $name;
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('SendNotificationChannelVerificationCode', GPBEmpty::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Updates a notification channel. Fields not specified in the field mask
+     * remain unchanged.
+     *
+     * Design your application to single-thread API calls that modify the state of
+     * notification channels in a single project. This includes calls to
+     * CreateNotificationChannel, DeleteNotificationChannel and
+     * UpdateNotificationChannel.
+     *
+     * Sample code:
+     * ```
+     * $notificationChannelServiceClient = new NotificationChannelServiceClient();
+     * try {
+     *     $notificationChannel = new NotificationChannel();
+     *     $response = $notificationChannelServiceClient->updateNotificationChannel($notificationChannel);
+     * } finally {
+     *     $notificationChannelServiceClient->close();
+     * }
+     * ```
+     *
+     * @param NotificationChannel $notificationChannel Required. A description of the changes to be applied to the specified
+     *                                                 notification channel. The description must provide a definition for
+     *                                                 fields to be updated; the names of these fields should also be
+     *                                                 included in the `update_mask`.
+     * @param array               $optionalArgs        {
+     *     Optional.
+     *
+     *     @type FieldMask $updateMask
+     *           Optional. The fields to update.
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Cloud\Monitoring\V3\NotificationChannel
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function updateNotificationChannel($notificationChannel, array $optionalArgs = [])
+    {
+        $request = new UpdateNotificationChannelRequest();
+        $requestParamHeaders = [];
+        $request->setNotificationChannel($notificationChannel);
+        $requestParamHeaders['notification_channel.name'] = $notificationChannel->getName();
+        if (isset($optionalArgs['updateMask'])) {
+            $request->setUpdateMask($optionalArgs['updateMask']);
+        }
+
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('UpdateNotificationChannel', NotificationChannel::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Verifies a `NotificationChannel` by proving receipt of the code
+     * delivered to the channel as a result of calling
+     * `SendNotificationChannelVerificationCode`.
+     *
+     * Sample code:
+     * ```
+     * $notificationChannelServiceClient = new NotificationChannelServiceClient();
+     * try {
+     *     $formattedName = $notificationChannelServiceClient->notificationChannelName('[PROJECT]', '[NOTIFICATION_CHANNEL]');
+     *     $code = 'code';
+     *     $response = $notificationChannelServiceClient->verifyNotificationChannel($formattedName, $code);
+     * } finally {
+     *     $notificationChannelServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. The notification channel to verify.
+     * @param string $code         Required. The verification code that was delivered to the channel as
+     *                             a result of invoking the `SendNotificationChannelVerificationCode` API
+     *                             method or that was retrieved from a verified channel via
+     *                             `GetNotificationChannelVerificationCode`. For example, one might have
+     *                             "G-123456" or "TKNZGhhd2EyN3I1MnRnMjRv" (in general, one is only
+     *                             guaranteed that the code is valid UTF-8; one should not
+     *                             make any assumptions regarding the structure or format of the code).
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Cloud\Monitoring\V3\NotificationChannel
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function verifyNotificationChannel($name, $code, array $optionalArgs = [])
+    {
+        $request = new VerifyNotificationChannelRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $request->setCode($code);
+        $requestParamHeaders['name'] = $name;
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('VerifyNotificationChannel', NotificationChannel::class, $optionalArgs, $request)->wait();
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/Gapic/QueryServiceGapicClient.php b/owl-bot-staging/Monitoring/v3/src/V3/Gapic/QueryServiceGapicClient.php
new file mode 100644
index 000000000000..13009bf13097
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/Gapic/QueryServiceGapicClient.php
@@ -0,0 +1,261 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * Generated by gapic-generator-php from the file
+ * https://github.com/googleapis/googleapis/blob/master/google/monitoring/v3/query_service.proto
+ * Updates to the above are reflected here through a refresh process.
+ */
+
+namespace Google\Cloud\Monitoring\V3\Gapic;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\GapicClientTrait;
+use Google\ApiCore\RequestParamsHeaderDescriptor;
+use Google\ApiCore\RetrySettings;
+use Google\ApiCore\Transport\TransportInterface;
+use Google\ApiCore\ValidationException;
+use Google\Auth\FetchAuthTokenInterface;
+use Google\Cloud\Monitoring\V3\QueryTimeSeriesRequest;
+use Google\Cloud\Monitoring\V3\QueryTimeSeriesResponse;
+
+/**
+ * Service Description: The QueryService API is used to manage time series data in Cloud
+ * Monitoring. Time series data is a collection of data points that describes
+ * the time-varying values of a metric.
+ *
+ * This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods. Sample code to get started:
+ *
+ * ```
+ * $queryServiceClient = new QueryServiceClient();
+ * try {
+ *     $name = 'name';
+ *     $query = 'query';
+ *     // Iterate over pages of elements
+ *     $pagedResponse = $queryServiceClient->queryTimeSeries($name, $query);
+ *     foreach ($pagedResponse->iteratePages() as $page) {
+ *         foreach ($page as $element) {
+ *             // doSomethingWith($element);
+ *         }
+ *     }
+ *     // Alternatively:
+ *     // Iterate through all elements
+ *     $pagedResponse = $queryServiceClient->queryTimeSeries($name, $query);
+ *     foreach ($pagedResponse->iterateAllElements() as $element) {
+ *         // doSomethingWith($element);
+ *     }
+ * } finally {
+ *     $queryServiceClient->close();
+ * }
+ * ```
+ *
+ * @deprecated Please use the new service client {@see \Google\Cloud\Monitoring\V3\Client\QueryServiceClient}.
+ */
+class QueryServiceGapicClient
+{
+    use GapicClientTrait;
+
+    /** The name of the service. */
+    const SERVICE_NAME = 'google.monitoring.v3.QueryService';
+
+    /**
+     * The default address of the service.
+     *
+     * @deprecated SERVICE_ADDRESS_TEMPLATE should be used instead.
+     */
+    const SERVICE_ADDRESS = 'monitoring.googleapis.com';
+
+    /** The address template of the service. */
+    private const SERVICE_ADDRESS_TEMPLATE = 'monitoring.UNIVERSE_DOMAIN';
+
+    /** The default port of the service. */
+    const DEFAULT_SERVICE_PORT = 443;
+
+    /** The name of the code generator, to be included in the agent header. */
+    const CODEGEN_NAME = 'gapic';
+
+    /** The default scopes required by the service. */
+    public static $serviceScopes = [
+        'https://www.googleapis.com/auth/cloud-platform',
+        'https://www.googleapis.com/auth/monitoring',
+        'https://www.googleapis.com/auth/monitoring.read',
+    ];
+
+    private static function getClientDefaults()
+    {
+        return [
+            'serviceName' => self::SERVICE_NAME,
+            'apiEndpoint' => self::SERVICE_ADDRESS . ':' . self::DEFAULT_SERVICE_PORT,
+            'clientConfig' => __DIR__ . '/../resources/query_service_client_config.json',
+            'descriptorsConfigPath' => __DIR__ . '/../resources/query_service_descriptor_config.php',
+            'gcpApiConfigPath' => __DIR__ . '/../resources/query_service_grpc_config.json',
+            'credentialsConfig' => [
+                'defaultScopes' => self::$serviceScopes,
+            ],
+            'transportConfig' => [
+                'rest' => [
+                    'restClientConfigPath' => __DIR__ . '/../resources/query_service_rest_client_config.php',
+                ],
+            ],
+        ];
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $options {
+     *     Optional. Options for configuring the service API wrapper.
+     *
+     *     @type string $apiEndpoint
+     *           The address of the API remote host. May optionally include the port, formatted
+     *           as "<uri>:<port>". Default 'monitoring.googleapis.com:443'.
+     *     @type string|array|FetchAuthTokenInterface|CredentialsWrapper $credentials
+     *           The credentials to be used by the client to authorize API calls. This option
+     *           accepts either a path to a credentials file, or a decoded credentials file as a
+     *           PHP array.
+     *           *Advanced usage*: In addition, this option can also accept a pre-constructed
+     *           {@see \Google\Auth\FetchAuthTokenInterface} object or
+     *           {@see \Google\ApiCore\CredentialsWrapper} object. Note that when one of these
+     *           objects are provided, any settings in $credentialsConfig will be ignored.
+     *     @type array $credentialsConfig
+     *           Options used to configure credentials, including auth token caching, for the
+     *           client. For a full list of supporting configuration options, see
+     *           {@see \Google\ApiCore\CredentialsWrapper::build()} .
+     *     @type bool $disableRetries
+     *           Determines whether or not retries defined by the client configuration should be
+     *           disabled. Defaults to `false`.
+     *     @type string|array $clientConfig
+     *           Client method configuration, including retry settings. This option can be either
+     *           a path to a JSON file, or a PHP array containing the decoded JSON data. By
+     *           default this settings points to the default client config file, which is
+     *           provided in the resources folder.
+     *     @type string|TransportInterface $transport
+     *           The transport used for executing network requests. May be either the string
+     *           `rest` or `grpc`. Defaults to `grpc` if gRPC support is detected on the system.
+     *           *Advanced usage*: Additionally, it is possible to pass in an already
+     *           instantiated {@see \Google\ApiCore\Transport\TransportInterface} object. Note
+     *           that when this object is provided, any settings in $transportConfig, and any
+     *           $apiEndpoint setting, will be ignored.
+     *     @type array $transportConfig
+     *           Configuration options that will be used to construct the transport. Options for
+     *           each supported transport type should be passed in a key for that transport. For
+     *           example:
+     *           $transportConfig = [
+     *               'grpc' => [...],
+     *               'rest' => [...],
+     *           ];
+     *           See the {@see \Google\ApiCore\Transport\GrpcTransport::build()} and
+     *           {@see \Google\ApiCore\Transport\RestTransport::build()} methods for the
+     *           supported options.
+     *     @type callable $clientCertSource
+     *           A callable which returns the client cert as a string. This can be used to
+     *           provide a certificate and private key to the transport layer for mTLS.
+     * }
+     *
+     * @throws ValidationException
+     */
+    public function __construct(array $options = [])
+    {
+        $clientOptions = $this->buildClientOptions($options);
+        $this->setClientOptions($clientOptions);
+    }
+
+    /**
+     * Queries time series by using Monitoring Query Language (MQL). We recommend
+     * using PromQL instead of MQL. For more information about the status of MQL,
+     * see the [MQL deprecation
+     * notice](https://cloud.google.com/stackdriver/docs/deprecations/mql).
+     *
+     * Sample code:
+     * ```
+     * $queryServiceClient = new QueryServiceClient();
+     * try {
+     *     $name = 'name';
+     *     $query = 'query';
+     *     // Iterate over pages of elements
+     *     $pagedResponse = $queryServiceClient->queryTimeSeries($name, $query);
+     *     foreach ($pagedResponse->iteratePages() as $page) {
+     *         foreach ($page as $element) {
+     *             // doSomethingWith($element);
+     *         }
+     *     }
+     *     // Alternatively:
+     *     // Iterate through all elements
+     *     $pagedResponse = $queryServiceClient->queryTimeSeries($name, $query);
+     *     foreach ($pagedResponse->iterateAllElements() as $element) {
+     *         // doSomethingWith($element);
+     *     }
+     * } finally {
+     *     $queryServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. The
+     *                             [project](https://cloud.google.com/monitoring/api/v3#project_name) on which
+     *                             to execute the request. The format is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]
+     * @param string $query        Required. The query in the [Monitoring Query
+     *                             Language](https://cloud.google.com/monitoring/mql/reference) format.
+     *                             The default time zone is in UTC.
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type int $pageSize
+     *           The maximum number of resources contained in the underlying API
+     *           response. The API may return fewer values in a page, even if
+     *           there are additional values to be retrieved.
+     *     @type string $pageToken
+     *           A page token is used to specify a page of values to be returned.
+     *           If no page token is specified (the default), the first page
+     *           of values will be returned. Any page token used here must have
+     *           been generated by a previous call to the API.
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\ApiCore\PagedListResponse
+     *
+     * @throws ApiException if the remote call fails
+     *
+     * @deprecated This method will be removed in the next major version update.
+     */
+    public function queryTimeSeries($name, $query, array $optionalArgs = [])
+    {
+        $request = new QueryTimeSeriesRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $request->setQuery($query);
+        $requestParamHeaders['name'] = $name;
+        if (isset($optionalArgs['pageSize'])) {
+            $request->setPageSize($optionalArgs['pageSize']);
+        }
+
+        if (isset($optionalArgs['pageToken'])) {
+            $request->setPageToken($optionalArgs['pageToken']);
+        }
+
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->getPagedListResponse('QueryTimeSeries', $optionalArgs, QueryTimeSeriesResponse::class, $request);
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/Gapic/ServiceMonitoringServiceGapicClient.php b/owl-bot-staging/Monitoring/v3/src/V3/Gapic/ServiceMonitoringServiceGapicClient.php
new file mode 100644
index 000000000000..c7cc9a8589b9
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/Gapic/ServiceMonitoringServiceGapicClient.php
@@ -0,0 +1,1044 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * Generated by gapic-generator-php from the file
+ * https://github.com/googleapis/googleapis/blob/master/google/monitoring/v3/service_service.proto
+ * Updates to the above are reflected here through a refresh process.
+ */
+
+namespace Google\Cloud\Monitoring\V3\Gapic;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\GapicClientTrait;
+use Google\ApiCore\PathTemplate;
+use Google\ApiCore\RequestParamsHeaderDescriptor;
+use Google\ApiCore\RetrySettings;
+use Google\ApiCore\Transport\TransportInterface;
+use Google\ApiCore\ValidationException;
+use Google\Auth\FetchAuthTokenInterface;
+use Google\Cloud\Monitoring\V3\CreateServiceLevelObjectiveRequest;
+use Google\Cloud\Monitoring\V3\CreateServiceRequest;
+use Google\Cloud\Monitoring\V3\DeleteServiceLevelObjectiveRequest;
+use Google\Cloud\Monitoring\V3\DeleteServiceRequest;
+use Google\Cloud\Monitoring\V3\GetServiceLevelObjectiveRequest;
+use Google\Cloud\Monitoring\V3\GetServiceRequest;
+use Google\Cloud\Monitoring\V3\ListServiceLevelObjectivesRequest;
+use Google\Cloud\Monitoring\V3\ListServiceLevelObjectivesResponse;
+use Google\Cloud\Monitoring\V3\ListServicesRequest;
+use Google\Cloud\Monitoring\V3\ListServicesResponse;
+use Google\Cloud\Monitoring\V3\Service;
+use Google\Cloud\Monitoring\V3\ServiceLevelObjective;
+use Google\Cloud\Monitoring\V3\ServiceLevelObjective\View;
+use Google\Cloud\Monitoring\V3\UpdateServiceLevelObjectiveRequest;
+use Google\Cloud\Monitoring\V3\UpdateServiceRequest;
+use Google\Protobuf\FieldMask;
+use Google\Protobuf\GPBEmpty;
+
+/**
+ * Service Description: The Cloud Monitoring Service-Oriented Monitoring API has endpoints for
+ * managing and querying aspects of a Metrics Scope's services. These include
+ * the `Service`'s monitored resources, its Service-Level Objectives, and a
+ * taxonomy of categorized Health Metrics.
+ *
+ * This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods. Sample code to get started:
+ *
+ * ```
+ * $serviceMonitoringServiceClient = new ServiceMonitoringServiceClient();
+ * try {
+ *     $parent = 'parent';
+ *     $service = new Service();
+ *     $response = $serviceMonitoringServiceClient->createService($parent, $service);
+ * } finally {
+ *     $serviceMonitoringServiceClient->close();
+ * }
+ * ```
+ *
+ * Many parameters require resource names to be formatted in a particular way. To
+ * assist with these names, this class includes a format method for each type of
+ * name, and additionally a parseName method to extract the individual identifiers
+ * contained within formatted names that are returned by the API.
+ *
+ * @deprecated Please use the new service client {@see \Google\Cloud\Monitoring\V3\Client\ServiceMonitoringServiceClient}.
+ */
+class ServiceMonitoringServiceGapicClient
+{
+    use GapicClientTrait;
+
+    /** The name of the service. */
+    const SERVICE_NAME = 'google.monitoring.v3.ServiceMonitoringService';
+
+    /**
+     * The default address of the service.
+     *
+     * @deprecated SERVICE_ADDRESS_TEMPLATE should be used instead.
+     */
+    const SERVICE_ADDRESS = 'monitoring.googleapis.com';
+
+    /** The address template of the service. */
+    private const SERVICE_ADDRESS_TEMPLATE = 'monitoring.UNIVERSE_DOMAIN';
+
+    /** The default port of the service. */
+    const DEFAULT_SERVICE_PORT = 443;
+
+    /** The name of the code generator, to be included in the agent header. */
+    const CODEGEN_NAME = 'gapic';
+
+    /** The default scopes required by the service. */
+    public static $serviceScopes = [
+        'https://www.googleapis.com/auth/cloud-platform',
+        'https://www.googleapis.com/auth/monitoring',
+        'https://www.googleapis.com/auth/monitoring.read',
+    ];
+
+    private static $folderServiceNameTemplate;
+
+    private static $folderServiceServiceLevelObjectiveNameTemplate;
+
+    private static $organizationServiceNameTemplate;
+
+    private static $organizationServiceServiceLevelObjectiveNameTemplate;
+
+    private static $projectServiceNameTemplate;
+
+    private static $projectServiceServiceLevelObjectiveNameTemplate;
+
+    private static $serviceNameTemplate;
+
+    private static $serviceLevelObjectiveNameTemplate;
+
+    private static $pathTemplateMap;
+
+    private static function getClientDefaults()
+    {
+        return [
+            'serviceName' => self::SERVICE_NAME,
+            'apiEndpoint' => self::SERVICE_ADDRESS . ':' . self::DEFAULT_SERVICE_PORT,
+            'clientConfig' => __DIR__ . '/../resources/service_monitoring_service_client_config.json',
+            'descriptorsConfigPath' => __DIR__ . '/../resources/service_monitoring_service_descriptor_config.php',
+            'gcpApiConfigPath' => __DIR__ . '/../resources/service_monitoring_service_grpc_config.json',
+            'credentialsConfig' => [
+                'defaultScopes' => self::$serviceScopes,
+            ],
+            'transportConfig' => [
+                'rest' => [
+                    'restClientConfigPath' => __DIR__ . '/../resources/service_monitoring_service_rest_client_config.php',
+                ],
+            ],
+        ];
+    }
+
+    private static function getFolderServiceNameTemplate()
+    {
+        if (self::$folderServiceNameTemplate == null) {
+            self::$folderServiceNameTemplate = new PathTemplate('folders/{folder}/services/{service}');
+        }
+
+        return self::$folderServiceNameTemplate;
+    }
+
+    private static function getFolderServiceServiceLevelObjectiveNameTemplate()
+    {
+        if (self::$folderServiceServiceLevelObjectiveNameTemplate == null) {
+            self::$folderServiceServiceLevelObjectiveNameTemplate = new PathTemplate('folders/{folder}/services/{service}/serviceLevelObjectives/{service_level_objective}');
+        }
+
+        return self::$folderServiceServiceLevelObjectiveNameTemplate;
+    }
+
+    private static function getOrganizationServiceNameTemplate()
+    {
+        if (self::$organizationServiceNameTemplate == null) {
+            self::$organizationServiceNameTemplate = new PathTemplate('organizations/{organization}/services/{service}');
+        }
+
+        return self::$organizationServiceNameTemplate;
+    }
+
+    private static function getOrganizationServiceServiceLevelObjectiveNameTemplate()
+    {
+        if (self::$organizationServiceServiceLevelObjectiveNameTemplate == null) {
+            self::$organizationServiceServiceLevelObjectiveNameTemplate = new PathTemplate('organizations/{organization}/services/{service}/serviceLevelObjectives/{service_level_objective}');
+        }
+
+        return self::$organizationServiceServiceLevelObjectiveNameTemplate;
+    }
+
+    private static function getProjectServiceNameTemplate()
+    {
+        if (self::$projectServiceNameTemplate == null) {
+            self::$projectServiceNameTemplate = new PathTemplate('projects/{project}/services/{service}');
+        }
+
+        return self::$projectServiceNameTemplate;
+    }
+
+    private static function getProjectServiceServiceLevelObjectiveNameTemplate()
+    {
+        if (self::$projectServiceServiceLevelObjectiveNameTemplate == null) {
+            self::$projectServiceServiceLevelObjectiveNameTemplate = new PathTemplate('projects/{project}/services/{service}/serviceLevelObjectives/{service_level_objective}');
+        }
+
+        return self::$projectServiceServiceLevelObjectiveNameTemplate;
+    }
+
+    private static function getServiceNameTemplate()
+    {
+        if (self::$serviceNameTemplate == null) {
+            self::$serviceNameTemplate = new PathTemplate('projects/{project}/services/{service}');
+        }
+
+        return self::$serviceNameTemplate;
+    }
+
+    private static function getServiceLevelObjectiveNameTemplate()
+    {
+        if (self::$serviceLevelObjectiveNameTemplate == null) {
+            self::$serviceLevelObjectiveNameTemplate = new PathTemplate('projects/{project}/services/{service}/serviceLevelObjectives/{service_level_objective}');
+        }
+
+        return self::$serviceLevelObjectiveNameTemplate;
+    }
+
+    private static function getPathTemplateMap()
+    {
+        if (self::$pathTemplateMap == null) {
+            self::$pathTemplateMap = [
+                'folderService' => self::getFolderServiceNameTemplate(),
+                'folderServiceServiceLevelObjective' => self::getFolderServiceServiceLevelObjectiveNameTemplate(),
+                'organizationService' => self::getOrganizationServiceNameTemplate(),
+                'organizationServiceServiceLevelObjective' => self::getOrganizationServiceServiceLevelObjectiveNameTemplate(),
+                'projectService' => self::getProjectServiceNameTemplate(),
+                'projectServiceServiceLevelObjective' => self::getProjectServiceServiceLevelObjectiveNameTemplate(),
+                'service' => self::getServiceNameTemplate(),
+                'serviceLevelObjective' => self::getServiceLevelObjectiveNameTemplate(),
+            ];
+        }
+
+        return self::$pathTemplateMap;
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * folder_service resource.
+     *
+     * @param string $folder
+     * @param string $service
+     *
+     * @return string The formatted folder_service resource.
+     */
+    public static function folderServiceName($folder, $service)
+    {
+        return self::getFolderServiceNameTemplate()->render([
+            'folder' => $folder,
+            'service' => $service,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * folder_service_service_level_objective resource.
+     *
+     * @param string $folder
+     * @param string $service
+     * @param string $serviceLevelObjective
+     *
+     * @return string The formatted folder_service_service_level_objective resource.
+     */
+    public static function folderServiceServiceLevelObjectiveName($folder, $service, $serviceLevelObjective)
+    {
+        return self::getFolderServiceServiceLevelObjectiveNameTemplate()->render([
+            'folder' => $folder,
+            'service' => $service,
+            'service_level_objective' => $serviceLevelObjective,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * organization_service resource.
+     *
+     * @param string $organization
+     * @param string $service
+     *
+     * @return string The formatted organization_service resource.
+     */
+    public static function organizationServiceName($organization, $service)
+    {
+        return self::getOrganizationServiceNameTemplate()->render([
+            'organization' => $organization,
+            'service' => $service,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * organization_service_service_level_objective resource.
+     *
+     * @param string $organization
+     * @param string $service
+     * @param string $serviceLevelObjective
+     *
+     * @return string The formatted organization_service_service_level_objective resource.
+     */
+    public static function organizationServiceServiceLevelObjectiveName($organization, $service, $serviceLevelObjective)
+    {
+        return self::getOrganizationServiceServiceLevelObjectiveNameTemplate()->render([
+            'organization' => $organization,
+            'service' => $service,
+            'service_level_objective' => $serviceLevelObjective,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * project_service resource.
+     *
+     * @param string $project
+     * @param string $service
+     *
+     * @return string The formatted project_service resource.
+     */
+    public static function projectServiceName($project, $service)
+    {
+        return self::getProjectServiceNameTemplate()->render([
+            'project' => $project,
+            'service' => $service,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * project_service_service_level_objective resource.
+     *
+     * @param string $project
+     * @param string $service
+     * @param string $serviceLevelObjective
+     *
+     * @return string The formatted project_service_service_level_objective resource.
+     */
+    public static function projectServiceServiceLevelObjectiveName($project, $service, $serviceLevelObjective)
+    {
+        return self::getProjectServiceServiceLevelObjectiveNameTemplate()->render([
+            'project' => $project,
+            'service' => $service,
+            'service_level_objective' => $serviceLevelObjective,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a service
+     * resource.
+     *
+     * @param string $project
+     * @param string $service
+     *
+     * @return string The formatted service resource.
+     */
+    public static function serviceName($project, $service)
+    {
+        return self::getServiceNameTemplate()->render([
+            'project' => $project,
+            'service' => $service,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * service_level_objective resource.
+     *
+     * @param string $project
+     * @param string $service
+     * @param string $serviceLevelObjective
+     *
+     * @return string The formatted service_level_objective resource.
+     */
+    public static function serviceLevelObjectiveName($project, $service, $serviceLevelObjective)
+    {
+        return self::getServiceLevelObjectiveNameTemplate()->render([
+            'project' => $project,
+            'service' => $service,
+            'service_level_objective' => $serviceLevelObjective,
+        ]);
+    }
+
+    /**
+     * Parses a formatted name string and returns an associative array of the components in the name.
+     * The following name formats are supported:
+     * Template: Pattern
+     * - folderService: folders/{folder}/services/{service}
+     * - folderServiceServiceLevelObjective: folders/{folder}/services/{service}/serviceLevelObjectives/{service_level_objective}
+     * - organizationService: organizations/{organization}/services/{service}
+     * - organizationServiceServiceLevelObjective: organizations/{organization}/services/{service}/serviceLevelObjectives/{service_level_objective}
+     * - projectService: projects/{project}/services/{service}
+     * - projectServiceServiceLevelObjective: projects/{project}/services/{service}/serviceLevelObjectives/{service_level_objective}
+     * - service: projects/{project}/services/{service}
+     * - serviceLevelObjective: projects/{project}/services/{service}/serviceLevelObjectives/{service_level_objective}
+     *
+     * The optional $template argument can be supplied to specify a particular pattern,
+     * and must match one of the templates listed above. If no $template argument is
+     * provided, or if the $template argument does not match one of the templates
+     * listed, then parseName will check each of the supported templates, and return
+     * the first match.
+     *
+     * @param string $formattedName The formatted name string
+     * @param string $template      Optional name of template to match
+     *
+     * @return array An associative array from name component IDs to component values.
+     *
+     * @throws ValidationException If $formattedName could not be matched.
+     */
+    public static function parseName($formattedName, $template = null)
+    {
+        $templateMap = self::getPathTemplateMap();
+        if ($template) {
+            if (!isset($templateMap[$template])) {
+                throw new ValidationException("Template name $template does not exist");
+            }
+
+            return $templateMap[$template]->match($formattedName);
+        }
+
+        foreach ($templateMap as $templateName => $pathTemplate) {
+            try {
+                return $pathTemplate->match($formattedName);
+            } catch (ValidationException $ex) {
+                // Swallow the exception to continue trying other path templates
+            }
+        }
+
+        throw new ValidationException("Input did not match any known format. Input: $formattedName");
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $options {
+     *     Optional. Options for configuring the service API wrapper.
+     *
+     *     @type string $apiEndpoint
+     *           The address of the API remote host. May optionally include the port, formatted
+     *           as "<uri>:<port>". Default 'monitoring.googleapis.com:443'.
+     *     @type string|array|FetchAuthTokenInterface|CredentialsWrapper $credentials
+     *           The credentials to be used by the client to authorize API calls. This option
+     *           accepts either a path to a credentials file, or a decoded credentials file as a
+     *           PHP array.
+     *           *Advanced usage*: In addition, this option can also accept a pre-constructed
+     *           {@see \Google\Auth\FetchAuthTokenInterface} object or
+     *           {@see \Google\ApiCore\CredentialsWrapper} object. Note that when one of these
+     *           objects are provided, any settings in $credentialsConfig will be ignored.
+     *     @type array $credentialsConfig
+     *           Options used to configure credentials, including auth token caching, for the
+     *           client. For a full list of supporting configuration options, see
+     *           {@see \Google\ApiCore\CredentialsWrapper::build()} .
+     *     @type bool $disableRetries
+     *           Determines whether or not retries defined by the client configuration should be
+     *           disabled. Defaults to `false`.
+     *     @type string|array $clientConfig
+     *           Client method configuration, including retry settings. This option can be either
+     *           a path to a JSON file, or a PHP array containing the decoded JSON data. By
+     *           default this settings points to the default client config file, which is
+     *           provided in the resources folder.
+     *     @type string|TransportInterface $transport
+     *           The transport used for executing network requests. May be either the string
+     *           `rest` or `grpc`. Defaults to `grpc` if gRPC support is detected on the system.
+     *           *Advanced usage*: Additionally, it is possible to pass in an already
+     *           instantiated {@see \Google\ApiCore\Transport\TransportInterface} object. Note
+     *           that when this object is provided, any settings in $transportConfig, and any
+     *           $apiEndpoint setting, will be ignored.
+     *     @type array $transportConfig
+     *           Configuration options that will be used to construct the transport. Options for
+     *           each supported transport type should be passed in a key for that transport. For
+     *           example:
+     *           $transportConfig = [
+     *               'grpc' => [...],
+     *               'rest' => [...],
+     *           ];
+     *           See the {@see \Google\ApiCore\Transport\GrpcTransport::build()} and
+     *           {@see \Google\ApiCore\Transport\RestTransport::build()} methods for the
+     *           supported options.
+     *     @type callable $clientCertSource
+     *           A callable which returns the client cert as a string. This can be used to
+     *           provide a certificate and private key to the transport layer for mTLS.
+     * }
+     *
+     * @throws ValidationException
+     */
+    public function __construct(array $options = [])
+    {
+        $clientOptions = $this->buildClientOptions($options);
+        $this->setClientOptions($clientOptions);
+    }
+
+    /**
+     * Create a `Service`.
+     *
+     * Sample code:
+     * ```
+     * $serviceMonitoringServiceClient = new ServiceMonitoringServiceClient();
+     * try {
+     *     $parent = 'parent';
+     *     $service = new Service();
+     *     $response = $serviceMonitoringServiceClient->createService($parent, $service);
+     * } finally {
+     *     $serviceMonitoringServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string  $parent       Required. Resource
+     *                              [name](https://cloud.google.com/monitoring/api/v3#project_name) of the
+     *                              parent Metrics Scope. The format is:
+     *
+     *                              projects/[PROJECT_ID_OR_NUMBER]
+     * @param Service $service      Required. The `Service` to create.
+     * @param array   $optionalArgs {
+     *     Optional.
+     *
+     *     @type string $serviceId
+     *           Optional. The Service id to use for this Service. If omitted, an id will be
+     *           generated instead. Must match the pattern `[a-z0-9\-]+`
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Cloud\Monitoring\V3\Service
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function createService($parent, $service, array $optionalArgs = [])
+    {
+        $request = new CreateServiceRequest();
+        $requestParamHeaders = [];
+        $request->setParent($parent);
+        $request->setService($service);
+        $requestParamHeaders['parent'] = $parent;
+        if (isset($optionalArgs['serviceId'])) {
+            $request->setServiceId($optionalArgs['serviceId']);
+        }
+
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('CreateService', Service::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Create a `ServiceLevelObjective` for the given `Service`.
+     *
+     * Sample code:
+     * ```
+     * $serviceMonitoringServiceClient = new ServiceMonitoringServiceClient();
+     * try {
+     *     $formattedParent = $serviceMonitoringServiceClient->serviceName('[PROJECT]', '[SERVICE]');
+     *     $serviceLevelObjective = new ServiceLevelObjective();
+     *     $response = $serviceMonitoringServiceClient->createServiceLevelObjective($formattedParent, $serviceLevelObjective);
+     * } finally {
+     *     $serviceMonitoringServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string                $parent                Required. Resource name of the parent `Service`. The format is:
+     *
+     *                                                     projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     * @param ServiceLevelObjective $serviceLevelObjective Required. The `ServiceLevelObjective` to create.
+     *                                                     The provided `name` will be respected if no `ServiceLevelObjective` exists
+     *                                                     with this name.
+     * @param array                 $optionalArgs          {
+     *     Optional.
+     *
+     *     @type string $serviceLevelObjectiveId
+     *           Optional. The ServiceLevelObjective id to use for this
+     *           ServiceLevelObjective. If omitted, an id will be generated instead. Must
+     *           match the pattern `^[a-zA-Z0-9-_:.]+$`
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Cloud\Monitoring\V3\ServiceLevelObjective
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function createServiceLevelObjective($parent, $serviceLevelObjective, array $optionalArgs = [])
+    {
+        $request = new CreateServiceLevelObjectiveRequest();
+        $requestParamHeaders = [];
+        $request->setParent($parent);
+        $request->setServiceLevelObjective($serviceLevelObjective);
+        $requestParamHeaders['parent'] = $parent;
+        if (isset($optionalArgs['serviceLevelObjectiveId'])) {
+            $request->setServiceLevelObjectiveId($optionalArgs['serviceLevelObjectiveId']);
+        }
+
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('CreateServiceLevelObjective', ServiceLevelObjective::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Soft delete this `Service`.
+     *
+     * Sample code:
+     * ```
+     * $serviceMonitoringServiceClient = new ServiceMonitoringServiceClient();
+     * try {
+     *     $formattedName = $serviceMonitoringServiceClient->serviceName('[PROJECT]', '[SERVICE]');
+     *     $serviceMonitoringServiceClient->deleteService($formattedName);
+     * } finally {
+     *     $serviceMonitoringServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. Resource name of the `Service` to delete. The format is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function deleteService($name, array $optionalArgs = [])
+    {
+        $request = new DeleteServiceRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $requestParamHeaders['name'] = $name;
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('DeleteService', GPBEmpty::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Delete the given `ServiceLevelObjective`.
+     *
+     * Sample code:
+     * ```
+     * $serviceMonitoringServiceClient = new ServiceMonitoringServiceClient();
+     * try {
+     *     $formattedName = $serviceMonitoringServiceClient->serviceLevelObjectiveName('[PROJECT]', '[SERVICE]', '[SERVICE_LEVEL_OBJECTIVE]');
+     *     $serviceMonitoringServiceClient->deleteServiceLevelObjective($formattedName);
+     * } finally {
+     *     $serviceMonitoringServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. Resource name of the `ServiceLevelObjective` to delete. The
+     *                             format is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]/serviceLevelObjectives/[SLO_NAME]
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function deleteServiceLevelObjective($name, array $optionalArgs = [])
+    {
+        $request = new DeleteServiceLevelObjectiveRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $requestParamHeaders['name'] = $name;
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('DeleteServiceLevelObjective', GPBEmpty::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Get the named `Service`.
+     *
+     * Sample code:
+     * ```
+     * $serviceMonitoringServiceClient = new ServiceMonitoringServiceClient();
+     * try {
+     *     $formattedName = $serviceMonitoringServiceClient->serviceName('[PROJECT]', '[SERVICE]');
+     *     $response = $serviceMonitoringServiceClient->getService($formattedName);
+     * } finally {
+     *     $serviceMonitoringServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. Resource name of the `Service`. The format is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Cloud\Monitoring\V3\Service
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function getService($name, array $optionalArgs = [])
+    {
+        $request = new GetServiceRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $requestParamHeaders['name'] = $name;
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('GetService', Service::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Get a `ServiceLevelObjective` by name.
+     *
+     * Sample code:
+     * ```
+     * $serviceMonitoringServiceClient = new ServiceMonitoringServiceClient();
+     * try {
+     *     $formattedName = $serviceMonitoringServiceClient->serviceLevelObjectiveName('[PROJECT]', '[SERVICE]', '[SERVICE_LEVEL_OBJECTIVE]');
+     *     $response = $serviceMonitoringServiceClient->getServiceLevelObjective($formattedName);
+     * } finally {
+     *     $serviceMonitoringServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. Resource name of the `ServiceLevelObjective` to get. The format
+     *                             is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]/serviceLevelObjectives/[SLO_NAME]
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type int $view
+     *           View of the `ServiceLevelObjective` to return. If `DEFAULT`, return the
+     *           `ServiceLevelObjective` as originally defined. If `EXPLICIT` and the
+     *           `ServiceLevelObjective` is defined in terms of a `BasicSli`, replace the
+     *           `BasicSli` with a `RequestBasedSli` spelling out how the SLI is computed.
+     *           For allowed values, use constants defined on {@see \Google\Cloud\Monitoring\V3\ServiceLevelObjective\View}
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Cloud\Monitoring\V3\ServiceLevelObjective
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function getServiceLevelObjective($name, array $optionalArgs = [])
+    {
+        $request = new GetServiceLevelObjectiveRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $requestParamHeaders['name'] = $name;
+        if (isset($optionalArgs['view'])) {
+            $request->setView($optionalArgs['view']);
+        }
+
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('GetServiceLevelObjective', ServiceLevelObjective::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * List the `ServiceLevelObjective`s for the given `Service`.
+     *
+     * Sample code:
+     * ```
+     * $serviceMonitoringServiceClient = new ServiceMonitoringServiceClient();
+     * try {
+     *     $formattedParent = $serviceMonitoringServiceClient->serviceName('[PROJECT]', '[SERVICE]');
+     *     // Iterate over pages of elements
+     *     $pagedResponse = $serviceMonitoringServiceClient->listServiceLevelObjectives($formattedParent);
+     *     foreach ($pagedResponse->iteratePages() as $page) {
+     *         foreach ($page as $element) {
+     *             // doSomethingWith($element);
+     *         }
+     *     }
+     *     // Alternatively:
+     *     // Iterate through all elements
+     *     $pagedResponse = $serviceMonitoringServiceClient->listServiceLevelObjectives($formattedParent);
+     *     foreach ($pagedResponse->iterateAllElements() as $element) {
+     *         // doSomethingWith($element);
+     *     }
+     * } finally {
+     *     $serviceMonitoringServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $parent       Required. Resource name of the parent containing the listed SLOs, either a
+     *                             project or a Monitoring Metrics Scope. The formats are:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]/services/[SERVICE_ID]
+     *                             workspaces/[HOST_PROJECT_ID_OR_NUMBER]/services/-
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type string $filter
+     *           A filter specifying what `ServiceLevelObjective`s to return.
+     *     @type int $pageSize
+     *           The maximum number of resources contained in the underlying API
+     *           response. The API may return fewer values in a page, even if
+     *           there are additional values to be retrieved.
+     *     @type string $pageToken
+     *           A page token is used to specify a page of values to be returned.
+     *           If no page token is specified (the default), the first page
+     *           of values will be returned. Any page token used here must have
+     *           been generated by a previous call to the API.
+     *     @type int $view
+     *           View of the `ServiceLevelObjective`s to return. If `DEFAULT`, return each
+     *           `ServiceLevelObjective` as originally defined. If `EXPLICIT` and the
+     *           `ServiceLevelObjective` is defined in terms of a `BasicSli`, replace the
+     *           `BasicSli` with a `RequestBasedSli` spelling out how the SLI is computed.
+     *           For allowed values, use constants defined on {@see \Google\Cloud\Monitoring\V3\ServiceLevelObjective\View}
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\ApiCore\PagedListResponse
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function listServiceLevelObjectives($parent, array $optionalArgs = [])
+    {
+        $request = new ListServiceLevelObjectivesRequest();
+        $requestParamHeaders = [];
+        $request->setParent($parent);
+        $requestParamHeaders['parent'] = $parent;
+        if (isset($optionalArgs['filter'])) {
+            $request->setFilter($optionalArgs['filter']);
+        }
+
+        if (isset($optionalArgs['pageSize'])) {
+            $request->setPageSize($optionalArgs['pageSize']);
+        }
+
+        if (isset($optionalArgs['pageToken'])) {
+            $request->setPageToken($optionalArgs['pageToken']);
+        }
+
+        if (isset($optionalArgs['view'])) {
+            $request->setView($optionalArgs['view']);
+        }
+
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->getPagedListResponse('ListServiceLevelObjectives', $optionalArgs, ListServiceLevelObjectivesResponse::class, $request);
+    }
+
+    /**
+     * List `Service`s for this Metrics Scope.
+     *
+     * Sample code:
+     * ```
+     * $serviceMonitoringServiceClient = new ServiceMonitoringServiceClient();
+     * try {
+     *     $parent = 'parent';
+     *     // Iterate over pages of elements
+     *     $pagedResponse = $serviceMonitoringServiceClient->listServices($parent);
+     *     foreach ($pagedResponse->iteratePages() as $page) {
+     *         foreach ($page as $element) {
+     *             // doSomethingWith($element);
+     *         }
+     *     }
+     *     // Alternatively:
+     *     // Iterate through all elements
+     *     $pagedResponse = $serviceMonitoringServiceClient->listServices($parent);
+     *     foreach ($pagedResponse->iterateAllElements() as $element) {
+     *         // doSomethingWith($element);
+     *     }
+     * } finally {
+     *     $serviceMonitoringServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $parent       Required. Resource name of the parent containing the listed services,
+     *                             either a [project](https://cloud.google.com/monitoring/api/v3#project_name)
+     *                             or a Monitoring Metrics Scope. The formats are:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]
+     *                             workspaces/[HOST_PROJECT_ID_OR_NUMBER]
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type string $filter
+     *           A filter specifying what `Service`s to return. The filter supports
+     *           filtering on a particular service-identifier type or one of its attributes.
+     *
+     *           To filter on a particular service-identifier type, the `identifier_case`
+     *           refers to which option in the `identifier` field is populated. For example,
+     *           the filter `identifier_case = "CUSTOM"` would match all services with a
+     *           value for the `custom` field. Valid options include "CUSTOM", "APP_ENGINE",
+     *           "MESH_ISTIO", and the other options listed at
+     *           https://cloud.google.com/monitoring/api/ref_v3/rest/v3/services#Service
+     *
+     *           To filter on an attribute of a service-identifier type, apply the filter
+     *           name by using the snake case of the service-identifier type and the
+     *           attribute of that service-identifier type, and join the two with a period.
+     *           For example, to filter by the `meshUid` field of the `MeshIstio`
+     *           service-identifier type, you must filter on `mesh_istio.mesh_uid =
+     *           "123"` to match all services with mesh UID "123". Service-identifier types
+     *           and their attributes are described at
+     *           https://cloud.google.com/monitoring/api/ref_v3/rest/v3/services#Service
+     *     @type int $pageSize
+     *           The maximum number of resources contained in the underlying API
+     *           response. The API may return fewer values in a page, even if
+     *           there are additional values to be retrieved.
+     *     @type string $pageToken
+     *           A page token is used to specify a page of values to be returned.
+     *           If no page token is specified (the default), the first page
+     *           of values will be returned. Any page token used here must have
+     *           been generated by a previous call to the API.
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\ApiCore\PagedListResponse
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function listServices($parent, array $optionalArgs = [])
+    {
+        $request = new ListServicesRequest();
+        $requestParamHeaders = [];
+        $request->setParent($parent);
+        $requestParamHeaders['parent'] = $parent;
+        if (isset($optionalArgs['filter'])) {
+            $request->setFilter($optionalArgs['filter']);
+        }
+
+        if (isset($optionalArgs['pageSize'])) {
+            $request->setPageSize($optionalArgs['pageSize']);
+        }
+
+        if (isset($optionalArgs['pageToken'])) {
+            $request->setPageToken($optionalArgs['pageToken']);
+        }
+
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->getPagedListResponse('ListServices', $optionalArgs, ListServicesResponse::class, $request);
+    }
+
+    /**
+     * Update this `Service`.
+     *
+     * Sample code:
+     * ```
+     * $serviceMonitoringServiceClient = new ServiceMonitoringServiceClient();
+     * try {
+     *     $service = new Service();
+     *     $response = $serviceMonitoringServiceClient->updateService($service);
+     * } finally {
+     *     $serviceMonitoringServiceClient->close();
+     * }
+     * ```
+     *
+     * @param Service $service      Required. The `Service` to draw updates from.
+     *                              The given `name` specifies the resource to update.
+     * @param array   $optionalArgs {
+     *     Optional.
+     *
+     *     @type FieldMask $updateMask
+     *           A set of field paths defining which fields to use for the update.
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Cloud\Monitoring\V3\Service
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function updateService($service, array $optionalArgs = [])
+    {
+        $request = new UpdateServiceRequest();
+        $requestParamHeaders = [];
+        $request->setService($service);
+        $requestParamHeaders['service.name'] = $service->getName();
+        if (isset($optionalArgs['updateMask'])) {
+            $request->setUpdateMask($optionalArgs['updateMask']);
+        }
+
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('UpdateService', Service::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Update the given `ServiceLevelObjective`.
+     *
+     * Sample code:
+     * ```
+     * $serviceMonitoringServiceClient = new ServiceMonitoringServiceClient();
+     * try {
+     *     $serviceLevelObjective = new ServiceLevelObjective();
+     *     $response = $serviceMonitoringServiceClient->updateServiceLevelObjective($serviceLevelObjective);
+     * } finally {
+     *     $serviceMonitoringServiceClient->close();
+     * }
+     * ```
+     *
+     * @param ServiceLevelObjective $serviceLevelObjective Required. The `ServiceLevelObjective` to draw updates from.
+     *                                                     The given `name` specifies the resource to update.
+     * @param array                 $optionalArgs          {
+     *     Optional.
+     *
+     *     @type FieldMask $updateMask
+     *           A set of field paths defining which fields to use for the update.
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Cloud\Monitoring\V3\ServiceLevelObjective
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function updateServiceLevelObjective($serviceLevelObjective, array $optionalArgs = [])
+    {
+        $request = new UpdateServiceLevelObjectiveRequest();
+        $requestParamHeaders = [];
+        $request->setServiceLevelObjective($serviceLevelObjective);
+        $requestParamHeaders['service_level_objective.name'] = $serviceLevelObjective->getName();
+        if (isset($optionalArgs['updateMask'])) {
+            $request->setUpdateMask($optionalArgs['updateMask']);
+        }
+
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('UpdateServiceLevelObjective', ServiceLevelObjective::class, $optionalArgs, $request)->wait();
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/Gapic/SnoozeServiceGapicClient.php b/owl-bot-staging/Monitoring/v3/src/V3/Gapic/SnoozeServiceGapicClient.php
new file mode 100644
index 000000000000..08c130e17a09
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/Gapic/SnoozeServiceGapicClient.php
@@ -0,0 +1,680 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * Generated by gapic-generator-php from the file
+ * https://github.com/googleapis/googleapis/blob/master/google/monitoring/v3/snooze_service.proto
+ * Updates to the above are reflected here through a refresh process.
+ */
+
+namespace Google\Cloud\Monitoring\V3\Gapic;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\GapicClientTrait;
+use Google\ApiCore\PathTemplate;
+use Google\ApiCore\RequestParamsHeaderDescriptor;
+use Google\ApiCore\RetrySettings;
+use Google\ApiCore\Transport\TransportInterface;
+use Google\ApiCore\ValidationException;
+use Google\Auth\FetchAuthTokenInterface;
+use Google\Cloud\Monitoring\V3\CreateSnoozeRequest;
+use Google\Cloud\Monitoring\V3\GetSnoozeRequest;
+use Google\Cloud\Monitoring\V3\ListSnoozesRequest;
+use Google\Cloud\Monitoring\V3\ListSnoozesResponse;
+use Google\Cloud\Monitoring\V3\Snooze;
+use Google\Cloud\Monitoring\V3\UpdateSnoozeRequest;
+use Google\Protobuf\FieldMask;
+
+/**
+ * Service Description: The SnoozeService API is used to temporarily prevent an alert policy from
+ * generating alerts. A Snooze is a description of the criteria under which one
+ * or more alert policies should not fire alerts for the specified duration.
+ *
+ * This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods. Sample code to get started:
+ *
+ * ```
+ * $snoozeServiceClient = new SnoozeServiceClient();
+ * try {
+ *     $formattedParent = $snoozeServiceClient->workspaceName('[PROJECT]');
+ *     $snooze = new Snooze();
+ *     $response = $snoozeServiceClient->createSnooze($formattedParent, $snooze);
+ * } finally {
+ *     $snoozeServiceClient->close();
+ * }
+ * ```
+ *
+ * Many parameters require resource names to be formatted in a particular way. To
+ * assist with these names, this class includes a format method for each type of
+ * name, and additionally a parseName method to extract the individual identifiers
+ * contained within formatted names that are returned by the API.
+ *
+ * @deprecated Please use the new service client {@see \Google\Cloud\Monitoring\V3\Client\SnoozeServiceClient}.
+ */
+class SnoozeServiceGapicClient
+{
+    use GapicClientTrait;
+
+    /** The name of the service. */
+    const SERVICE_NAME = 'google.monitoring.v3.SnoozeService';
+
+    /**
+     * The default address of the service.
+     *
+     * @deprecated SERVICE_ADDRESS_TEMPLATE should be used instead.
+     */
+    const SERVICE_ADDRESS = 'monitoring.googleapis.com';
+
+    /** The address template of the service. */
+    private const SERVICE_ADDRESS_TEMPLATE = 'monitoring.UNIVERSE_DOMAIN';
+
+    /** The default port of the service. */
+    const DEFAULT_SERVICE_PORT = 443;
+
+    /** The name of the code generator, to be included in the agent header. */
+    const CODEGEN_NAME = 'gapic';
+
+    /** The default scopes required by the service. */
+    public static $serviceScopes = [
+        'https://www.googleapis.com/auth/cloud-platform',
+        'https://www.googleapis.com/auth/monitoring',
+        'https://www.googleapis.com/auth/monitoring.read',
+    ];
+
+    private static $alertPolicyNameTemplate;
+
+    private static $folderAlertPolicyNameTemplate;
+
+    private static $organizationAlertPolicyNameTemplate;
+
+    private static $projectNameTemplate;
+
+    private static $projectAlertPolicyNameTemplate;
+
+    private static $snoozeNameTemplate;
+
+    private static $workspaceNameTemplate;
+
+    private static $pathTemplateMap;
+
+    private static function getClientDefaults()
+    {
+        return [
+            'serviceName' => self::SERVICE_NAME,
+            'apiEndpoint' => self::SERVICE_ADDRESS . ':' . self::DEFAULT_SERVICE_PORT,
+            'clientConfig' => __DIR__ . '/../resources/snooze_service_client_config.json',
+            'descriptorsConfigPath' => __DIR__ . '/../resources/snooze_service_descriptor_config.php',
+            'gcpApiConfigPath' => __DIR__ . '/../resources/snooze_service_grpc_config.json',
+            'credentialsConfig' => [
+                'defaultScopes' => self::$serviceScopes,
+            ],
+            'transportConfig' => [
+                'rest' => [
+                    'restClientConfigPath' => __DIR__ . '/../resources/snooze_service_rest_client_config.php',
+                ],
+            ],
+        ];
+    }
+
+    private static function getAlertPolicyNameTemplate()
+    {
+        if (self::$alertPolicyNameTemplate == null) {
+            self::$alertPolicyNameTemplate = new PathTemplate('projects/{project}/alertPolicies/{alert_policy}');
+        }
+
+        return self::$alertPolicyNameTemplate;
+    }
+
+    private static function getFolderAlertPolicyNameTemplate()
+    {
+        if (self::$folderAlertPolicyNameTemplate == null) {
+            self::$folderAlertPolicyNameTemplate = new PathTemplate('folders/{folder}/alertPolicies/{alert_policy}');
+        }
+
+        return self::$folderAlertPolicyNameTemplate;
+    }
+
+    private static function getOrganizationAlertPolicyNameTemplate()
+    {
+        if (self::$organizationAlertPolicyNameTemplate == null) {
+            self::$organizationAlertPolicyNameTemplate = new PathTemplate('organizations/{organization}/alertPolicies/{alert_policy}');
+        }
+
+        return self::$organizationAlertPolicyNameTemplate;
+    }
+
+    private static function getProjectNameTemplate()
+    {
+        if (self::$projectNameTemplate == null) {
+            self::$projectNameTemplate = new PathTemplate('projects/{project}');
+        }
+
+        return self::$projectNameTemplate;
+    }
+
+    private static function getProjectAlertPolicyNameTemplate()
+    {
+        if (self::$projectAlertPolicyNameTemplate == null) {
+            self::$projectAlertPolicyNameTemplate = new PathTemplate('projects/{project}/alertPolicies/{alert_policy}');
+        }
+
+        return self::$projectAlertPolicyNameTemplate;
+    }
+
+    private static function getSnoozeNameTemplate()
+    {
+        if (self::$snoozeNameTemplate == null) {
+            self::$snoozeNameTemplate = new PathTemplate('projects/{project}/snoozes/{snooze}');
+        }
+
+        return self::$snoozeNameTemplate;
+    }
+
+    private static function getWorkspaceNameTemplate()
+    {
+        if (self::$workspaceNameTemplate == null) {
+            self::$workspaceNameTemplate = new PathTemplate('projects/{project}');
+        }
+
+        return self::$workspaceNameTemplate;
+    }
+
+    private static function getPathTemplateMap()
+    {
+        if (self::$pathTemplateMap == null) {
+            self::$pathTemplateMap = [
+                'alertPolicy' => self::getAlertPolicyNameTemplate(),
+                'folderAlertPolicy' => self::getFolderAlertPolicyNameTemplate(),
+                'organizationAlertPolicy' => self::getOrganizationAlertPolicyNameTemplate(),
+                'project' => self::getProjectNameTemplate(),
+                'projectAlertPolicy' => self::getProjectAlertPolicyNameTemplate(),
+                'snooze' => self::getSnoozeNameTemplate(),
+                'workspace' => self::getWorkspaceNameTemplate(),
+            ];
+        }
+
+        return self::$pathTemplateMap;
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a alert_policy
+     * resource.
+     *
+     * @param string $project
+     * @param string $alertPolicy
+     *
+     * @return string The formatted alert_policy resource.
+     */
+    public static function alertPolicyName($project, $alertPolicy)
+    {
+        return self::getAlertPolicyNameTemplate()->render([
+            'project' => $project,
+            'alert_policy' => $alertPolicy,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * folder_alert_policy resource.
+     *
+     * @param string $folder
+     * @param string $alertPolicy
+     *
+     * @return string The formatted folder_alert_policy resource.
+     */
+    public static function folderAlertPolicyName($folder, $alertPolicy)
+    {
+        return self::getFolderAlertPolicyNameTemplate()->render([
+            'folder' => $folder,
+            'alert_policy' => $alertPolicy,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * organization_alert_policy resource.
+     *
+     * @param string $organization
+     * @param string $alertPolicy
+     *
+     * @return string The formatted organization_alert_policy resource.
+     */
+    public static function organizationAlertPolicyName($organization, $alertPolicy)
+    {
+        return self::getOrganizationAlertPolicyNameTemplate()->render([
+            'organization' => $organization,
+            'alert_policy' => $alertPolicy,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a project
+     * resource.
+     *
+     * @param string $project
+     *
+     * @return string The formatted project resource.
+     */
+    public static function projectName($project)
+    {
+        return self::getProjectNameTemplate()->render([
+            'project' => $project,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * project_alert_policy resource.
+     *
+     * @param string $project
+     * @param string $alertPolicy
+     *
+     * @return string The formatted project_alert_policy resource.
+     */
+    public static function projectAlertPolicyName($project, $alertPolicy)
+    {
+        return self::getProjectAlertPolicyNameTemplate()->render([
+            'project' => $project,
+            'alert_policy' => $alertPolicy,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a snooze
+     * resource.
+     *
+     * @param string $project
+     * @param string $snooze
+     *
+     * @return string The formatted snooze resource.
+     */
+    public static function snoozeName($project, $snooze)
+    {
+        return self::getSnoozeNameTemplate()->render([
+            'project' => $project,
+            'snooze' => $snooze,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a workspace
+     * resource.
+     *
+     * @param string $project
+     *
+     * @return string The formatted workspace resource.
+     */
+    public static function workspaceName($project)
+    {
+        return self::getWorkspaceNameTemplate()->render([
+            'project' => $project,
+        ]);
+    }
+
+    /**
+     * Parses a formatted name string and returns an associative array of the components in the name.
+     * The following name formats are supported:
+     * Template: Pattern
+     * - alertPolicy: projects/{project}/alertPolicies/{alert_policy}
+     * - folderAlertPolicy: folders/{folder}/alertPolicies/{alert_policy}
+     * - organizationAlertPolicy: organizations/{organization}/alertPolicies/{alert_policy}
+     * - project: projects/{project}
+     * - projectAlertPolicy: projects/{project}/alertPolicies/{alert_policy}
+     * - snooze: projects/{project}/snoozes/{snooze}
+     * - workspace: projects/{project}
+     *
+     * The optional $template argument can be supplied to specify a particular pattern,
+     * and must match one of the templates listed above. If no $template argument is
+     * provided, or if the $template argument does not match one of the templates
+     * listed, then parseName will check each of the supported templates, and return
+     * the first match.
+     *
+     * @param string $formattedName The formatted name string
+     * @param string $template      Optional name of template to match
+     *
+     * @return array An associative array from name component IDs to component values.
+     *
+     * @throws ValidationException If $formattedName could not be matched.
+     */
+    public static function parseName($formattedName, $template = null)
+    {
+        $templateMap = self::getPathTemplateMap();
+        if ($template) {
+            if (!isset($templateMap[$template])) {
+                throw new ValidationException("Template name $template does not exist");
+            }
+
+            return $templateMap[$template]->match($formattedName);
+        }
+
+        foreach ($templateMap as $templateName => $pathTemplate) {
+            try {
+                return $pathTemplate->match($formattedName);
+            } catch (ValidationException $ex) {
+                // Swallow the exception to continue trying other path templates
+            }
+        }
+
+        throw new ValidationException("Input did not match any known format. Input: $formattedName");
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $options {
+     *     Optional. Options for configuring the service API wrapper.
+     *
+     *     @type string $apiEndpoint
+     *           The address of the API remote host. May optionally include the port, formatted
+     *           as "<uri>:<port>". Default 'monitoring.googleapis.com:443'.
+     *     @type string|array|FetchAuthTokenInterface|CredentialsWrapper $credentials
+     *           The credentials to be used by the client to authorize API calls. This option
+     *           accepts either a path to a credentials file, or a decoded credentials file as a
+     *           PHP array.
+     *           *Advanced usage*: In addition, this option can also accept a pre-constructed
+     *           {@see \Google\Auth\FetchAuthTokenInterface} object or
+     *           {@see \Google\ApiCore\CredentialsWrapper} object. Note that when one of these
+     *           objects are provided, any settings in $credentialsConfig will be ignored.
+     *     @type array $credentialsConfig
+     *           Options used to configure credentials, including auth token caching, for the
+     *           client. For a full list of supporting configuration options, see
+     *           {@see \Google\ApiCore\CredentialsWrapper::build()} .
+     *     @type bool $disableRetries
+     *           Determines whether or not retries defined by the client configuration should be
+     *           disabled. Defaults to `false`.
+     *     @type string|array $clientConfig
+     *           Client method configuration, including retry settings. This option can be either
+     *           a path to a JSON file, or a PHP array containing the decoded JSON data. By
+     *           default this settings points to the default client config file, which is
+     *           provided in the resources folder.
+     *     @type string|TransportInterface $transport
+     *           The transport used for executing network requests. May be either the string
+     *           `rest` or `grpc`. Defaults to `grpc` if gRPC support is detected on the system.
+     *           *Advanced usage*: Additionally, it is possible to pass in an already
+     *           instantiated {@see \Google\ApiCore\Transport\TransportInterface} object. Note
+     *           that when this object is provided, any settings in $transportConfig, and any
+     *           $apiEndpoint setting, will be ignored.
+     *     @type array $transportConfig
+     *           Configuration options that will be used to construct the transport. Options for
+     *           each supported transport type should be passed in a key for that transport. For
+     *           example:
+     *           $transportConfig = [
+     *               'grpc' => [...],
+     *               'rest' => [...],
+     *           ];
+     *           See the {@see \Google\ApiCore\Transport\GrpcTransport::build()} and
+     *           {@see \Google\ApiCore\Transport\RestTransport::build()} methods for the
+     *           supported options.
+     *     @type callable $clientCertSource
+     *           A callable which returns the client cert as a string. This can be used to
+     *           provide a certificate and private key to the transport layer for mTLS.
+     * }
+     *
+     * @throws ValidationException
+     */
+    public function __construct(array $options = [])
+    {
+        $clientOptions = $this->buildClientOptions($options);
+        $this->setClientOptions($clientOptions);
+    }
+
+    /**
+     * Creates a `Snooze` that will prevent alerts, which match the provided
+     * criteria, from being opened. The `Snooze` applies for a specific time
+     * interval.
+     *
+     * Sample code:
+     * ```
+     * $snoozeServiceClient = new SnoozeServiceClient();
+     * try {
+     *     $formattedParent = $snoozeServiceClient->workspaceName('[PROJECT]');
+     *     $snooze = new Snooze();
+     *     $response = $snoozeServiceClient->createSnooze($formattedParent, $snooze);
+     * } finally {
+     *     $snoozeServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $parent       Required. The
+     *                             [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+     *                             a `Snooze` should be created. The format is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]
+     * @param Snooze $snooze       Required. The `Snooze` to create. Omit the `name` field, as it will be
+     *                             filled in by the API.
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Cloud\Monitoring\V3\Snooze
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function createSnooze($parent, $snooze, array $optionalArgs = [])
+    {
+        $request = new CreateSnoozeRequest();
+        $requestParamHeaders = [];
+        $request->setParent($parent);
+        $request->setSnooze($snooze);
+        $requestParamHeaders['parent'] = $parent;
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('CreateSnooze', Snooze::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Retrieves a `Snooze` by `name`.
+     *
+     * Sample code:
+     * ```
+     * $snoozeServiceClient = new SnoozeServiceClient();
+     * try {
+     *     $formattedName = $snoozeServiceClient->snoozeName('[PROJECT]', '[SNOOZE]');
+     *     $response = $snoozeServiceClient->getSnooze($formattedName);
+     * } finally {
+     *     $snoozeServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. The ID of the `Snooze` to retrieve. The format is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]/snoozes/[SNOOZE_ID]
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Cloud\Monitoring\V3\Snooze
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function getSnooze($name, array $optionalArgs = [])
+    {
+        $request = new GetSnoozeRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $requestParamHeaders['name'] = $name;
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('GetSnooze', Snooze::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Lists the `Snooze`s associated with a project. Can optionally pass in
+     * `filter`, which specifies predicates to match `Snooze`s.
+     *
+     * Sample code:
+     * ```
+     * $snoozeServiceClient = new SnoozeServiceClient();
+     * try {
+     *     $formattedParent = $snoozeServiceClient->workspaceName('[PROJECT]');
+     *     // Iterate over pages of elements
+     *     $pagedResponse = $snoozeServiceClient->listSnoozes($formattedParent);
+     *     foreach ($pagedResponse->iteratePages() as $page) {
+     *         foreach ($page as $element) {
+     *             // doSomethingWith($element);
+     *         }
+     *     }
+     *     // Alternatively:
+     *     // Iterate through all elements
+     *     $pagedResponse = $snoozeServiceClient->listSnoozes($formattedParent);
+     *     foreach ($pagedResponse->iterateAllElements() as $element) {
+     *         // doSomethingWith($element);
+     *     }
+     * } finally {
+     *     $snoozeServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $parent       Required. The
+     *                             [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+     *                             `Snooze`s should be listed. The format is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type string $filter
+     *           Optional. Optional filter to restrict results to the given criteria. The
+     *           following fields are supported.
+     *
+     *           * `interval.start_time`
+     *           * `interval.end_time`
+     *
+     *           For example:
+     *
+     *           ```
+     *           interval.start_time > "2022-03-11T00:00:00-08:00" AND
+     *           interval.end_time < "2022-03-12T00:00:00-08:00"
+     *           ```
+     *     @type int $pageSize
+     *           The maximum number of resources contained in the underlying API
+     *           response. The API may return fewer values in a page, even if
+     *           there are additional values to be retrieved.
+     *     @type string $pageToken
+     *           A page token is used to specify a page of values to be returned.
+     *           If no page token is specified (the default), the first page
+     *           of values will be returned. Any page token used here must have
+     *           been generated by a previous call to the API.
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\ApiCore\PagedListResponse
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function listSnoozes($parent, array $optionalArgs = [])
+    {
+        $request = new ListSnoozesRequest();
+        $requestParamHeaders = [];
+        $request->setParent($parent);
+        $requestParamHeaders['parent'] = $parent;
+        if (isset($optionalArgs['filter'])) {
+            $request->setFilter($optionalArgs['filter']);
+        }
+
+        if (isset($optionalArgs['pageSize'])) {
+            $request->setPageSize($optionalArgs['pageSize']);
+        }
+
+        if (isset($optionalArgs['pageToken'])) {
+            $request->setPageToken($optionalArgs['pageToken']);
+        }
+
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->getPagedListResponse('ListSnoozes', $optionalArgs, ListSnoozesResponse::class, $request);
+    }
+
+    /**
+     * Updates a `Snooze`, identified by its `name`, with the parameters in the
+     * given `Snooze` object.
+     *
+     * Sample code:
+     * ```
+     * $snoozeServiceClient = new SnoozeServiceClient();
+     * try {
+     *     $snooze = new Snooze();
+     *     $updateMask = new FieldMask();
+     *     $response = $snoozeServiceClient->updateSnooze($snooze, $updateMask);
+     * } finally {
+     *     $snoozeServiceClient->close();
+     * }
+     * ```
+     *
+     * @param Snooze    $snooze       Required. The `Snooze` to update. Must have the name field present.
+     * @param FieldMask $updateMask   Required. The fields to update.
+     *
+     *                                For each field listed in `update_mask`:
+     *
+     *                                * If the `Snooze` object supplied in the `UpdateSnoozeRequest` has a
+     *                                value for that field, the value of the field in the existing `Snooze`
+     *                                will be set to the value of the field in the supplied `Snooze`.
+     *                                * If the field does not have a value in the supplied `Snooze`, the field
+     *                                in the existing `Snooze` is set to its default value.
+     *
+     *                                Fields not listed retain their existing value.
+     *
+     *                                The following are the field names that are accepted in `update_mask`:
+     *
+     *                                * `display_name`
+     *                                * `interval.start_time`
+     *                                * `interval.end_time`
+     *
+     *                                That said, the start time and end time of the `Snooze` determines which
+     *                                fields can legally be updated. Before attempting an update, users should
+     *                                consult the documentation for `UpdateSnoozeRequest`, which talks about
+     *                                which fields can be updated.
+     * @param array     $optionalArgs {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Cloud\Monitoring\V3\Snooze
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function updateSnooze($snooze, $updateMask, array $optionalArgs = [])
+    {
+        $request = new UpdateSnoozeRequest();
+        $requestParamHeaders = [];
+        $request->setSnooze($snooze);
+        $request->setUpdateMask($updateMask);
+        $requestParamHeaders['snooze.name'] = $snooze->getName();
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('UpdateSnooze', Snooze::class, $optionalArgs, $request)->wait();
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/Gapic/UptimeCheckServiceGapicClient.php b/owl-bot-staging/Monitoring/v3/src/V3/Gapic/UptimeCheckServiceGapicClient.php
new file mode 100644
index 000000000000..1cb01a5525fb
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/Gapic/UptimeCheckServiceGapicClient.php
@@ -0,0 +1,724 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * Generated by gapic-generator-php from the file
+ * https://github.com/googleapis/googleapis/blob/master/google/monitoring/v3/uptime_service.proto
+ * Updates to the above are reflected here through a refresh process.
+ */
+
+namespace Google\Cloud\Monitoring\V3\Gapic;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\GapicClientTrait;
+use Google\ApiCore\PathTemplate;
+use Google\ApiCore\RequestParamsHeaderDescriptor;
+use Google\ApiCore\RetrySettings;
+use Google\ApiCore\Transport\TransportInterface;
+use Google\ApiCore\ValidationException;
+use Google\Auth\FetchAuthTokenInterface;
+use Google\Cloud\Monitoring\V3\CreateUptimeCheckConfigRequest;
+use Google\Cloud\Monitoring\V3\DeleteUptimeCheckConfigRequest;
+use Google\Cloud\Monitoring\V3\GetUptimeCheckConfigRequest;
+use Google\Cloud\Monitoring\V3\ListUptimeCheckConfigsRequest;
+use Google\Cloud\Monitoring\V3\ListUptimeCheckConfigsResponse;
+use Google\Cloud\Monitoring\V3\ListUptimeCheckIpsRequest;
+use Google\Cloud\Monitoring\V3\ListUptimeCheckIpsResponse;
+use Google\Cloud\Monitoring\V3\UpdateUptimeCheckConfigRequest;
+use Google\Cloud\Monitoring\V3\UptimeCheckConfig;
+use Google\Protobuf\FieldMask;
+use Google\Protobuf\GPBEmpty;
+
+/**
+ * Service Description: The UptimeCheckService API is used to manage (list, create, delete, edit)
+ * Uptime check configurations in the Cloud Monitoring product. An Uptime
+ * check is a piece of configuration that determines which resources and
+ * services to monitor for availability. These configurations can also be
+ * configured interactively by navigating to the [Cloud console]
+ * (https://console.cloud.google.com), selecting the appropriate project,
+ * clicking on "Monitoring" on the left-hand side to navigate to Cloud
+ * Monitoring, and then clicking on "Uptime".
+ *
+ * This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods. Sample code to get started:
+ *
+ * ```
+ * $uptimeCheckServiceClient = new UptimeCheckServiceClient();
+ * try {
+ *     $parent = 'parent';
+ *     $uptimeCheckConfig = new UptimeCheckConfig();
+ *     $response = $uptimeCheckServiceClient->createUptimeCheckConfig($parent, $uptimeCheckConfig);
+ * } finally {
+ *     $uptimeCheckServiceClient->close();
+ * }
+ * ```
+ *
+ * Many parameters require resource names to be formatted in a particular way. To
+ * assist with these names, this class includes a format method for each type of
+ * name, and additionally a parseName method to extract the individual identifiers
+ * contained within formatted names that are returned by the API.
+ *
+ * @deprecated Please use the new service client {@see \Google\Cloud\Monitoring\V3\Client\UptimeCheckServiceClient}.
+ */
+class UptimeCheckServiceGapicClient
+{
+    use GapicClientTrait;
+
+    /** The name of the service. */
+    const SERVICE_NAME = 'google.monitoring.v3.UptimeCheckService';
+
+    /**
+     * The default address of the service.
+     *
+     * @deprecated SERVICE_ADDRESS_TEMPLATE should be used instead.
+     */
+    const SERVICE_ADDRESS = 'monitoring.googleapis.com';
+
+    /** The address template of the service. */
+    private const SERVICE_ADDRESS_TEMPLATE = 'monitoring.UNIVERSE_DOMAIN';
+
+    /** The default port of the service. */
+    const DEFAULT_SERVICE_PORT = 443;
+
+    /** The name of the code generator, to be included in the agent header. */
+    const CODEGEN_NAME = 'gapic';
+
+    /** The default scopes required by the service. */
+    public static $serviceScopes = [
+        'https://www.googleapis.com/auth/cloud-platform',
+        'https://www.googleapis.com/auth/monitoring',
+        'https://www.googleapis.com/auth/monitoring.read',
+    ];
+
+    private static $folderUptimeCheckConfigNameTemplate;
+
+    private static $functionNameTemplate;
+
+    private static $organizationUptimeCheckConfigNameTemplate;
+
+    private static $projectUptimeCheckConfigNameTemplate;
+
+    private static $uptimeCheckConfigNameTemplate;
+
+    private static $pathTemplateMap;
+
+    private static function getClientDefaults()
+    {
+        return [
+            'serviceName' => self::SERVICE_NAME,
+            'apiEndpoint' => self::SERVICE_ADDRESS . ':' . self::DEFAULT_SERVICE_PORT,
+            'clientConfig' => __DIR__ . '/../resources/uptime_check_service_client_config.json',
+            'descriptorsConfigPath' => __DIR__ . '/../resources/uptime_check_service_descriptor_config.php',
+            'gcpApiConfigPath' => __DIR__ . '/../resources/uptime_check_service_grpc_config.json',
+            'credentialsConfig' => [
+                'defaultScopes' => self::$serviceScopes,
+            ],
+            'transportConfig' => [
+                'rest' => [
+                    'restClientConfigPath' => __DIR__ . '/../resources/uptime_check_service_rest_client_config.php',
+                ],
+            ],
+        ];
+    }
+
+    private static function getFolderUptimeCheckConfigNameTemplate()
+    {
+        if (self::$folderUptimeCheckConfigNameTemplate == null) {
+            self::$folderUptimeCheckConfigNameTemplate = new PathTemplate('folders/{folder}/uptimeCheckConfigs/{uptime_check_config}');
+        }
+
+        return self::$folderUptimeCheckConfigNameTemplate;
+    }
+
+    private static function getFunctionNameTemplate()
+    {
+        if (self::$functionNameTemplate == null) {
+            self::$functionNameTemplate = new PathTemplate('projects/{project}/locations/{location}/functions/{function}');
+        }
+
+        return self::$functionNameTemplate;
+    }
+
+    private static function getOrganizationUptimeCheckConfigNameTemplate()
+    {
+        if (self::$organizationUptimeCheckConfigNameTemplate == null) {
+            self::$organizationUptimeCheckConfigNameTemplate = new PathTemplate('organizations/{organization}/uptimeCheckConfigs/{uptime_check_config}');
+        }
+
+        return self::$organizationUptimeCheckConfigNameTemplate;
+    }
+
+    private static function getProjectUptimeCheckConfigNameTemplate()
+    {
+        if (self::$projectUptimeCheckConfigNameTemplate == null) {
+            self::$projectUptimeCheckConfigNameTemplate = new PathTemplate('projects/{project}/uptimeCheckConfigs/{uptime_check_config}');
+        }
+
+        return self::$projectUptimeCheckConfigNameTemplate;
+    }
+
+    private static function getUptimeCheckConfigNameTemplate()
+    {
+        if (self::$uptimeCheckConfigNameTemplate == null) {
+            self::$uptimeCheckConfigNameTemplate = new PathTemplate('projects/{project}/uptimeCheckConfigs/{uptime_check_config}');
+        }
+
+        return self::$uptimeCheckConfigNameTemplate;
+    }
+
+    private static function getPathTemplateMap()
+    {
+        if (self::$pathTemplateMap == null) {
+            self::$pathTemplateMap = [
+                'folderUptimeCheckConfig' => self::getFolderUptimeCheckConfigNameTemplate(),
+                'function' => self::getFunctionNameTemplate(),
+                'organizationUptimeCheckConfig' => self::getOrganizationUptimeCheckConfigNameTemplate(),
+                'projectUptimeCheckConfig' => self::getProjectUptimeCheckConfigNameTemplate(),
+                'uptimeCheckConfig' => self::getUptimeCheckConfigNameTemplate(),
+            ];
+        }
+
+        return self::$pathTemplateMap;
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * folder_uptime_check_config resource.
+     *
+     * @param string $folder
+     * @param string $uptimeCheckConfig
+     *
+     * @return string The formatted folder_uptime_check_config resource.
+     */
+    public static function folderUptimeCheckConfigName($folder, $uptimeCheckConfig)
+    {
+        return self::getFolderUptimeCheckConfigNameTemplate()->render([
+            'folder' => $folder,
+            'uptime_check_config' => $uptimeCheckConfig,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a function
+     * resource.
+     *
+     * @param string $project
+     * @param string $location
+     * @param string $function
+     *
+     * @return string The formatted function resource.
+     */
+    public static function functionName($project, $location, $function)
+    {
+        return self::getFunctionNameTemplate()->render([
+            'project' => $project,
+            'location' => $location,
+            'function' => $function,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * organization_uptime_check_config resource.
+     *
+     * @param string $organization
+     * @param string $uptimeCheckConfig
+     *
+     * @return string The formatted organization_uptime_check_config resource.
+     */
+    public static function organizationUptimeCheckConfigName($organization, $uptimeCheckConfig)
+    {
+        return self::getOrganizationUptimeCheckConfigNameTemplate()->render([
+            'organization' => $organization,
+            'uptime_check_config' => $uptimeCheckConfig,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * project_uptime_check_config resource.
+     *
+     * @param string $project
+     * @param string $uptimeCheckConfig
+     *
+     * @return string The formatted project_uptime_check_config resource.
+     */
+    public static function projectUptimeCheckConfigName($project, $uptimeCheckConfig)
+    {
+        return self::getProjectUptimeCheckConfigNameTemplate()->render([
+            'project' => $project,
+            'uptime_check_config' => $uptimeCheckConfig,
+        ]);
+    }
+
+    /**
+     * Formats a string containing the fully-qualified path to represent a
+     * uptime_check_config resource.
+     *
+     * @param string $project
+     * @param string $uptimeCheckConfig
+     *
+     * @return string The formatted uptime_check_config resource.
+     */
+    public static function uptimeCheckConfigName($project, $uptimeCheckConfig)
+    {
+        return self::getUptimeCheckConfigNameTemplate()->render([
+            'project' => $project,
+            'uptime_check_config' => $uptimeCheckConfig,
+        ]);
+    }
+
+    /**
+     * Parses a formatted name string and returns an associative array of the components in the name.
+     * The following name formats are supported:
+     * Template: Pattern
+     * - folderUptimeCheckConfig: folders/{folder}/uptimeCheckConfigs/{uptime_check_config}
+     * - function: projects/{project}/locations/{location}/functions/{function}
+     * - organizationUptimeCheckConfig: organizations/{organization}/uptimeCheckConfigs/{uptime_check_config}
+     * - projectUptimeCheckConfig: projects/{project}/uptimeCheckConfigs/{uptime_check_config}
+     * - uptimeCheckConfig: projects/{project}/uptimeCheckConfigs/{uptime_check_config}
+     *
+     * The optional $template argument can be supplied to specify a particular pattern,
+     * and must match one of the templates listed above. If no $template argument is
+     * provided, or if the $template argument does not match one of the templates
+     * listed, then parseName will check each of the supported templates, and return
+     * the first match.
+     *
+     * @param string $formattedName The formatted name string
+     * @param string $template      Optional name of template to match
+     *
+     * @return array An associative array from name component IDs to component values.
+     *
+     * @throws ValidationException If $formattedName could not be matched.
+     */
+    public static function parseName($formattedName, $template = null)
+    {
+        $templateMap = self::getPathTemplateMap();
+        if ($template) {
+            if (!isset($templateMap[$template])) {
+                throw new ValidationException("Template name $template does not exist");
+            }
+
+            return $templateMap[$template]->match($formattedName);
+        }
+
+        foreach ($templateMap as $templateName => $pathTemplate) {
+            try {
+                return $pathTemplate->match($formattedName);
+            } catch (ValidationException $ex) {
+                // Swallow the exception to continue trying other path templates
+            }
+        }
+
+        throw new ValidationException("Input did not match any known format. Input: $formattedName");
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param array $options {
+     *     Optional. Options for configuring the service API wrapper.
+     *
+     *     @type string $apiEndpoint
+     *           The address of the API remote host. May optionally include the port, formatted
+     *           as "<uri>:<port>". Default 'monitoring.googleapis.com:443'.
+     *     @type string|array|FetchAuthTokenInterface|CredentialsWrapper $credentials
+     *           The credentials to be used by the client to authorize API calls. This option
+     *           accepts either a path to a credentials file, or a decoded credentials file as a
+     *           PHP array.
+     *           *Advanced usage*: In addition, this option can also accept a pre-constructed
+     *           {@see \Google\Auth\FetchAuthTokenInterface} object or
+     *           {@see \Google\ApiCore\CredentialsWrapper} object. Note that when one of these
+     *           objects are provided, any settings in $credentialsConfig will be ignored.
+     *     @type array $credentialsConfig
+     *           Options used to configure credentials, including auth token caching, for the
+     *           client. For a full list of supporting configuration options, see
+     *           {@see \Google\ApiCore\CredentialsWrapper::build()} .
+     *     @type bool $disableRetries
+     *           Determines whether or not retries defined by the client configuration should be
+     *           disabled. Defaults to `false`.
+     *     @type string|array $clientConfig
+     *           Client method configuration, including retry settings. This option can be either
+     *           a path to a JSON file, or a PHP array containing the decoded JSON data. By
+     *           default this settings points to the default client config file, which is
+     *           provided in the resources folder.
+     *     @type string|TransportInterface $transport
+     *           The transport used for executing network requests. May be either the string
+     *           `rest` or `grpc`. Defaults to `grpc` if gRPC support is detected on the system.
+     *           *Advanced usage*: Additionally, it is possible to pass in an already
+     *           instantiated {@see \Google\ApiCore\Transport\TransportInterface} object. Note
+     *           that when this object is provided, any settings in $transportConfig, and any
+     *           $apiEndpoint setting, will be ignored.
+     *     @type array $transportConfig
+     *           Configuration options that will be used to construct the transport. Options for
+     *           each supported transport type should be passed in a key for that transport. For
+     *           example:
+     *           $transportConfig = [
+     *               'grpc' => [...],
+     *               'rest' => [...],
+     *           ];
+     *           See the {@see \Google\ApiCore\Transport\GrpcTransport::build()} and
+     *           {@see \Google\ApiCore\Transport\RestTransport::build()} methods for the
+     *           supported options.
+     *     @type callable $clientCertSource
+     *           A callable which returns the client cert as a string. This can be used to
+     *           provide a certificate and private key to the transport layer for mTLS.
+     * }
+     *
+     * @throws ValidationException
+     */
+    public function __construct(array $options = [])
+    {
+        $clientOptions = $this->buildClientOptions($options);
+        $this->setClientOptions($clientOptions);
+    }
+
+    /**
+     * Creates a new Uptime check configuration.
+     *
+     * Sample code:
+     * ```
+     * $uptimeCheckServiceClient = new UptimeCheckServiceClient();
+     * try {
+     *     $parent = 'parent';
+     *     $uptimeCheckConfig = new UptimeCheckConfig();
+     *     $response = $uptimeCheckServiceClient->createUptimeCheckConfig($parent, $uptimeCheckConfig);
+     * } finally {
+     *     $uptimeCheckServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string            $parent            Required. The
+     *                                             [project](https://cloud.google.com/monitoring/api/v3#project_name) in which
+     *                                             to create the Uptime check. The format is:
+     *
+     *                                             projects/[PROJECT_ID_OR_NUMBER]
+     * @param UptimeCheckConfig $uptimeCheckConfig Required. The new Uptime check configuration.
+     * @param array             $optionalArgs      {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Cloud\Monitoring\V3\UptimeCheckConfig
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function createUptimeCheckConfig($parent, $uptimeCheckConfig, array $optionalArgs = [])
+    {
+        $request = new CreateUptimeCheckConfigRequest();
+        $requestParamHeaders = [];
+        $request->setParent($parent);
+        $request->setUptimeCheckConfig($uptimeCheckConfig);
+        $requestParamHeaders['parent'] = $parent;
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('CreateUptimeCheckConfig', UptimeCheckConfig::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Deletes an Uptime check configuration. Note that this method will fail
+     * if the Uptime check configuration is referenced by an alert policy or
+     * other dependent configs that would be rendered invalid by the deletion.
+     *
+     * Sample code:
+     * ```
+     * $uptimeCheckServiceClient = new UptimeCheckServiceClient();
+     * try {
+     *     $formattedName = $uptimeCheckServiceClient->uptimeCheckConfigName('[PROJECT]', '[UPTIME_CHECK_CONFIG]');
+     *     $uptimeCheckServiceClient->deleteUptimeCheckConfig($formattedName);
+     * } finally {
+     *     $uptimeCheckServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. The Uptime check configuration to delete. The format is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]/uptimeCheckConfigs/[UPTIME_CHECK_ID]
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function deleteUptimeCheckConfig($name, array $optionalArgs = [])
+    {
+        $request = new DeleteUptimeCheckConfigRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $requestParamHeaders['name'] = $name;
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('DeleteUptimeCheckConfig', GPBEmpty::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Gets a single Uptime check configuration.
+     *
+     * Sample code:
+     * ```
+     * $uptimeCheckServiceClient = new UptimeCheckServiceClient();
+     * try {
+     *     $formattedName = $uptimeCheckServiceClient->uptimeCheckConfigName('[PROJECT]', '[UPTIME_CHECK_CONFIG]');
+     *     $response = $uptimeCheckServiceClient->getUptimeCheckConfig($formattedName);
+     * } finally {
+     *     $uptimeCheckServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $name         Required. The Uptime check configuration to retrieve. The format is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]/uptimeCheckConfigs/[UPTIME_CHECK_ID]
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Cloud\Monitoring\V3\UptimeCheckConfig
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function getUptimeCheckConfig($name, array $optionalArgs = [])
+    {
+        $request = new GetUptimeCheckConfigRequest();
+        $requestParamHeaders = [];
+        $request->setName($name);
+        $requestParamHeaders['name'] = $name;
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('GetUptimeCheckConfig', UptimeCheckConfig::class, $optionalArgs, $request)->wait();
+    }
+
+    /**
+     * Lists the existing valid Uptime check configurations for the project
+     * (leaving out any invalid configurations).
+     *
+     * Sample code:
+     * ```
+     * $uptimeCheckServiceClient = new UptimeCheckServiceClient();
+     * try {
+     *     $parent = 'parent';
+     *     // Iterate over pages of elements
+     *     $pagedResponse = $uptimeCheckServiceClient->listUptimeCheckConfigs($parent);
+     *     foreach ($pagedResponse->iteratePages() as $page) {
+     *         foreach ($page as $element) {
+     *             // doSomethingWith($element);
+     *         }
+     *     }
+     *     // Alternatively:
+     *     // Iterate through all elements
+     *     $pagedResponse = $uptimeCheckServiceClient->listUptimeCheckConfigs($parent);
+     *     foreach ($pagedResponse->iterateAllElements() as $element) {
+     *         // doSomethingWith($element);
+     *     }
+     * } finally {
+     *     $uptimeCheckServiceClient->close();
+     * }
+     * ```
+     *
+     * @param string $parent       Required. The
+     *                             [project](https://cloud.google.com/monitoring/api/v3#project_name) whose
+     *                             Uptime check configurations are listed. The format is:
+     *
+     *                             projects/[PROJECT_ID_OR_NUMBER]
+     * @param array  $optionalArgs {
+     *     Optional.
+     *
+     *     @type string $filter
+     *           If provided, this field specifies the criteria that must be met by
+     *           uptime checks to be included in the response.
+     *
+     *           For more details, see [Filtering
+     *           syntax](https://cloud.google.com/monitoring/api/v3/sorting-and-filtering#filter_syntax).
+     *     @type int $pageSize
+     *           The maximum number of resources contained in the underlying API
+     *           response. The API may return fewer values in a page, even if
+     *           there are additional values to be retrieved.
+     *     @type string $pageToken
+     *           A page token is used to specify a page of values to be returned.
+     *           If no page token is specified (the default), the first page
+     *           of values will be returned. Any page token used here must have
+     *           been generated by a previous call to the API.
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\ApiCore\PagedListResponse
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function listUptimeCheckConfigs($parent, array $optionalArgs = [])
+    {
+        $request = new ListUptimeCheckConfigsRequest();
+        $requestParamHeaders = [];
+        $request->setParent($parent);
+        $requestParamHeaders['parent'] = $parent;
+        if (isset($optionalArgs['filter'])) {
+            $request->setFilter($optionalArgs['filter']);
+        }
+
+        if (isset($optionalArgs['pageSize'])) {
+            $request->setPageSize($optionalArgs['pageSize']);
+        }
+
+        if (isset($optionalArgs['pageToken'])) {
+            $request->setPageToken($optionalArgs['pageToken']);
+        }
+
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->getPagedListResponse('ListUptimeCheckConfigs', $optionalArgs, ListUptimeCheckConfigsResponse::class, $request);
+    }
+
+    /**
+     * Returns the list of IP addresses that checkers run from.
+     *
+     * Sample code:
+     * ```
+     * $uptimeCheckServiceClient = new UptimeCheckServiceClient();
+     * try {
+     *     // Iterate over pages of elements
+     *     $pagedResponse = $uptimeCheckServiceClient->listUptimeCheckIps();
+     *     foreach ($pagedResponse->iteratePages() as $page) {
+     *         foreach ($page as $element) {
+     *             // doSomethingWith($element);
+     *         }
+     *     }
+     *     // Alternatively:
+     *     // Iterate through all elements
+     *     $pagedResponse = $uptimeCheckServiceClient->listUptimeCheckIps();
+     *     foreach ($pagedResponse->iterateAllElements() as $element) {
+     *         // doSomethingWith($element);
+     *     }
+     * } finally {
+     *     $uptimeCheckServiceClient->close();
+     * }
+     * ```
+     *
+     * @param array $optionalArgs {
+     *     Optional.
+     *
+     *     @type int $pageSize
+     *           The maximum number of resources contained in the underlying API
+     *           response. The API may return fewer values in a page, even if
+     *           there are additional values to be retrieved.
+     *     @type string $pageToken
+     *           A page token is used to specify a page of values to be returned.
+     *           If no page token is specified (the default), the first page
+     *           of values will be returned. Any page token used here must have
+     *           been generated by a previous call to the API.
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\ApiCore\PagedListResponse
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function listUptimeCheckIps(array $optionalArgs = [])
+    {
+        $request = new ListUptimeCheckIpsRequest();
+        if (isset($optionalArgs['pageSize'])) {
+            $request->setPageSize($optionalArgs['pageSize']);
+        }
+
+        if (isset($optionalArgs['pageToken'])) {
+            $request->setPageToken($optionalArgs['pageToken']);
+        }
+
+        return $this->getPagedListResponse('ListUptimeCheckIps', $optionalArgs, ListUptimeCheckIpsResponse::class, $request);
+    }
+
+    /**
+     * Updates an Uptime check configuration. You can either replace the entire
+     * configuration with a new one or replace only certain fields in the current
+     * configuration by specifying the fields to be updated via `updateMask`.
+     * Returns the updated configuration.
+     *
+     * Sample code:
+     * ```
+     * $uptimeCheckServiceClient = new UptimeCheckServiceClient();
+     * try {
+     *     $uptimeCheckConfig = new UptimeCheckConfig();
+     *     $response = $uptimeCheckServiceClient->updateUptimeCheckConfig($uptimeCheckConfig);
+     * } finally {
+     *     $uptimeCheckServiceClient->close();
+     * }
+     * ```
+     *
+     * @param UptimeCheckConfig $uptimeCheckConfig Required. If an `updateMask` has been specified, this field gives
+     *                                             the values for the set of fields mentioned in the `updateMask`. If an
+     *                                             `updateMask` has not been given, this Uptime check configuration replaces
+     *                                             the current configuration. If a field is mentioned in `updateMask` but
+     *                                             the corresponding field is omitted in this partial Uptime check
+     *                                             configuration, it has the effect of deleting/clearing the field from the
+     *                                             configuration on the server.
+     *
+     *                                             The following fields can be updated: `display_name`,
+     *                                             `http_check`, `tcp_check`, `timeout`, `content_matchers`, and
+     *                                             `selected_regions`.
+     * @param array             $optionalArgs      {
+     *     Optional.
+     *
+     *     @type FieldMask $updateMask
+     *           Optional. If present, only the listed fields in the current Uptime check
+     *           configuration are updated with values from the new configuration. If this
+     *           field is empty, then the current configuration is completely replaced with
+     *           the new configuration.
+     *     @type RetrySettings|array $retrySettings
+     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
+     *           associative array of retry settings parameters. See the documentation on
+     *           {@see RetrySettings} for example usage.
+     * }
+     *
+     * @return \Google\Cloud\Monitoring\V3\UptimeCheckConfig
+     *
+     * @throws ApiException if the remote call fails
+     */
+    public function updateUptimeCheckConfig($uptimeCheckConfig, array $optionalArgs = [])
+    {
+        $request = new UpdateUptimeCheckConfigRequest();
+        $requestParamHeaders = [];
+        $request->setUptimeCheckConfig($uptimeCheckConfig);
+        $requestParamHeaders['uptime_check_config.name'] = $uptimeCheckConfig->getName();
+        if (isset($optionalArgs['updateMask'])) {
+            $request->setUpdateMask($optionalArgs['updateMask']);
+        }
+
+        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
+        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
+        return $this->startCall('UpdateUptimeCheckConfig', UptimeCheckConfig::class, $optionalArgs, $request)->wait();
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/GroupServiceClient.php b/owl-bot-staging/Monitoring/v3/src/V3/GroupServiceClient.php
new file mode 100644
index 000000000000..c8b5d43074ef
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/GroupServiceClient.php
@@ -0,0 +1,34 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * Generated by gapic-generator-php from the file
+ * https://github.com/googleapis/googleapis/blob/master/google/monitoring/v3/group_service.proto
+ * Updates to the above are reflected here through a refresh process.
+ */
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Cloud\Monitoring\V3\Gapic\GroupServiceGapicClient;
+
+/** {@inheritdoc} */
+class GroupServiceClient extends GroupServiceGapicClient
+{
+    // This class is intentionally empty, and is intended to hold manual additions to
+    // the generated {@see GroupServiceGapicClient} class.
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/MetricServiceClient.php b/owl-bot-staging/Monitoring/v3/src/V3/MetricServiceClient.php
new file mode 100644
index 000000000000..d64ad37162c2
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/MetricServiceClient.php
@@ -0,0 +1,34 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * Generated by gapic-generator-php from the file
+ * https://github.com/googleapis/googleapis/blob/master/google/monitoring/v3/metric_service.proto
+ * Updates to the above are reflected here through a refresh process.
+ */
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Cloud\Monitoring\V3\Gapic\MetricServiceGapicClient;
+
+/** {@inheritdoc} */
+class MetricServiceClient extends MetricServiceGapicClient
+{
+    // This class is intentionally empty, and is intended to hold manual additions to
+    // the generated {@see MetricServiceGapicClient} class.
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/NotificationChannelServiceClient.php b/owl-bot-staging/Monitoring/v3/src/V3/NotificationChannelServiceClient.php
new file mode 100644
index 000000000000..9b9e1c3b2572
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/NotificationChannelServiceClient.php
@@ -0,0 +1,34 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * Generated by gapic-generator-php from the file
+ * https://github.com/googleapis/googleapis/blob/master/google/monitoring/v3/notification_service.proto
+ * Updates to the above are reflected here through a refresh process.
+ */
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Cloud\Monitoring\V3\Gapic\NotificationChannelServiceGapicClient;
+
+/** {@inheritdoc} */
+class NotificationChannelServiceClient extends NotificationChannelServiceGapicClient
+{
+    // This class is intentionally empty, and is intended to hold manual additions to
+    // the generated {@see NotificationChannelServiceGapicClient} class.
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/QueryServiceClient.php b/owl-bot-staging/Monitoring/v3/src/V3/QueryServiceClient.php
new file mode 100644
index 000000000000..4ae0af38e3c2
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/QueryServiceClient.php
@@ -0,0 +1,34 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * Generated by gapic-generator-php from the file
+ * https://github.com/googleapis/googleapis/blob/master/google/monitoring/v3/query_service.proto
+ * Updates to the above are reflected here through a refresh process.
+ */
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Cloud\Monitoring\V3\Gapic\QueryServiceGapicClient;
+
+/** {@inheritdoc} */
+class QueryServiceClient extends QueryServiceGapicClient
+{
+    // This class is intentionally empty, and is intended to hold manual additions to
+    // the generated {@see QueryServiceGapicClient} class.
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/ServiceMonitoringServiceClient.php b/owl-bot-staging/Monitoring/v3/src/V3/ServiceMonitoringServiceClient.php
new file mode 100644
index 000000000000..d0155f3f2a09
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/ServiceMonitoringServiceClient.php
@@ -0,0 +1,34 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * Generated by gapic-generator-php from the file
+ * https://github.com/googleapis/googleapis/blob/master/google/monitoring/v3/service_service.proto
+ * Updates to the above are reflected here through a refresh process.
+ */
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Cloud\Monitoring\V3\Gapic\ServiceMonitoringServiceGapicClient;
+
+/** {@inheritdoc} */
+class ServiceMonitoringServiceClient extends ServiceMonitoringServiceGapicClient
+{
+    // This class is intentionally empty, and is intended to hold manual additions to
+    // the generated {@see ServiceMonitoringServiceGapicClient} class.
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/SnoozeServiceClient.php b/owl-bot-staging/Monitoring/v3/src/V3/SnoozeServiceClient.php
new file mode 100644
index 000000000000..bdf2407e8c82
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/SnoozeServiceClient.php
@@ -0,0 +1,34 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * Generated by gapic-generator-php from the file
+ * https://github.com/googleapis/googleapis/blob/master/google/monitoring/v3/snooze_service.proto
+ * Updates to the above are reflected here through a refresh process.
+ */
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Cloud\Monitoring\V3\Gapic\SnoozeServiceGapicClient;
+
+/** {@inheritdoc} */
+class SnoozeServiceClient extends SnoozeServiceGapicClient
+{
+    // This class is intentionally empty, and is intended to hold manual additions to
+    // the generated {@see SnoozeServiceGapicClient} class.
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/UptimeCheckServiceClient.php b/owl-bot-staging/Monitoring/v3/src/V3/UptimeCheckServiceClient.php
new file mode 100644
index 000000000000..6b5a51903dd0
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/UptimeCheckServiceClient.php
@@ -0,0 +1,34 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * Generated by gapic-generator-php from the file
+ * https://github.com/googleapis/googleapis/blob/master/google/monitoring/v3/uptime_service.proto
+ * Updates to the above are reflected here through a refresh process.
+ */
+
+namespace Google\Cloud\Monitoring\V3;
+
+use Google\Cloud\Monitoring\V3\Gapic\UptimeCheckServiceGapicClient;
+
+/** {@inheritdoc} */
+class UptimeCheckServiceClient extends UptimeCheckServiceGapicClient
+{
+    // This class is intentionally empty, and is intended to hold manual additions to
+    // the generated {@see UptimeCheckServiceGapicClient} class.
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/gapic_metadata.json b/owl-bot-staging/Monitoring/v3/src/V3/gapic_metadata.json
new file mode 100644
index 000000000000..a1d6f82223e6
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/gapic_metadata.json
@@ -0,0 +1,336 @@
+{
+    "schema": "1.0",
+    "comment": "This file maps proto services\/RPCs to the corresponding library clients\/methods",
+    "language": "php",
+    "protoPackage": "google.monitoring.v3",
+    "libraryPackage": "Google\\Cloud\\Monitoring\\V3",
+    "services": {
+        "AlertPolicyService": {
+            "clients": {
+                "grpc": {
+                    "libraryClient": "AlertPolicyServiceGapicClient",
+                    "rpcs": {
+                        "CreateAlertPolicy": {
+                            "methods": [
+                                "createAlertPolicy"
+                            ]
+                        },
+                        "DeleteAlertPolicy": {
+                            "methods": [
+                                "deleteAlertPolicy"
+                            ]
+                        },
+                        "GetAlertPolicy": {
+                            "methods": [
+                                "getAlertPolicy"
+                            ]
+                        },
+                        "ListAlertPolicies": {
+                            "methods": [
+                                "listAlertPolicies"
+                            ]
+                        },
+                        "UpdateAlertPolicy": {
+                            "methods": [
+                                "updateAlertPolicy"
+                            ]
+                        }
+                    }
+                }
+            }
+        },
+        "GroupService": {
+            "clients": {
+                "grpc": {
+                    "libraryClient": "GroupServiceGapicClient",
+                    "rpcs": {
+                        "CreateGroup": {
+                            "methods": [
+                                "createGroup"
+                            ]
+                        },
+                        "DeleteGroup": {
+                            "methods": [
+                                "deleteGroup"
+                            ]
+                        },
+                        "GetGroup": {
+                            "methods": [
+                                "getGroup"
+                            ]
+                        },
+                        "ListGroupMembers": {
+                            "methods": [
+                                "listGroupMembers"
+                            ]
+                        },
+                        "ListGroups": {
+                            "methods": [
+                                "listGroups"
+                            ]
+                        },
+                        "UpdateGroup": {
+                            "methods": [
+                                "updateGroup"
+                            ]
+                        }
+                    }
+                }
+            }
+        },
+        "MetricService": {
+            "clients": {
+                "grpc": {
+                    "libraryClient": "MetricServiceGapicClient",
+                    "rpcs": {
+                        "CreateMetricDescriptor": {
+                            "methods": [
+                                "createMetricDescriptor"
+                            ]
+                        },
+                        "CreateServiceTimeSeries": {
+                            "methods": [
+                                "createServiceTimeSeries"
+                            ]
+                        },
+                        "CreateTimeSeries": {
+                            "methods": [
+                                "createTimeSeries"
+                            ]
+                        },
+                        "DeleteMetricDescriptor": {
+                            "methods": [
+                                "deleteMetricDescriptor"
+                            ]
+                        },
+                        "GetMetricDescriptor": {
+                            "methods": [
+                                "getMetricDescriptor"
+                            ]
+                        },
+                        "GetMonitoredResourceDescriptor": {
+                            "methods": [
+                                "getMonitoredResourceDescriptor"
+                            ]
+                        },
+                        "ListMetricDescriptors": {
+                            "methods": [
+                                "listMetricDescriptors"
+                            ]
+                        },
+                        "ListMonitoredResourceDescriptors": {
+                            "methods": [
+                                "listMonitoredResourceDescriptors"
+                            ]
+                        },
+                        "ListTimeSeries": {
+                            "methods": [
+                                "listTimeSeries"
+                            ]
+                        }
+                    }
+                }
+            }
+        },
+        "NotificationChannelService": {
+            "clients": {
+                "grpc": {
+                    "libraryClient": "NotificationChannelServiceGapicClient",
+                    "rpcs": {
+                        "CreateNotificationChannel": {
+                            "methods": [
+                                "createNotificationChannel"
+                            ]
+                        },
+                        "DeleteNotificationChannel": {
+                            "methods": [
+                                "deleteNotificationChannel"
+                            ]
+                        },
+                        "GetNotificationChannel": {
+                            "methods": [
+                                "getNotificationChannel"
+                            ]
+                        },
+                        "GetNotificationChannelDescriptor": {
+                            "methods": [
+                                "getNotificationChannelDescriptor"
+                            ]
+                        },
+                        "GetNotificationChannelVerificationCode": {
+                            "methods": [
+                                "getNotificationChannelVerificationCode"
+                            ]
+                        },
+                        "ListNotificationChannelDescriptors": {
+                            "methods": [
+                                "listNotificationChannelDescriptors"
+                            ]
+                        },
+                        "ListNotificationChannels": {
+                            "methods": [
+                                "listNotificationChannels"
+                            ]
+                        },
+                        "SendNotificationChannelVerificationCode": {
+                            "methods": [
+                                "sendNotificationChannelVerificationCode"
+                            ]
+                        },
+                        "UpdateNotificationChannel": {
+                            "methods": [
+                                "updateNotificationChannel"
+                            ]
+                        },
+                        "VerifyNotificationChannel": {
+                            "methods": [
+                                "verifyNotificationChannel"
+                            ]
+                        }
+                    }
+                }
+            }
+        },
+        "QueryService": {
+            "clients": {
+                "grpc": {
+                    "libraryClient": "QueryServiceGapicClient",
+                    "rpcs": {
+                        "QueryTimeSeries": {
+                            "methods": [
+                                "queryTimeSeries"
+                            ]
+                        }
+                    }
+                }
+            }
+        },
+        "ServiceMonitoringService": {
+            "clients": {
+                "grpc": {
+                    "libraryClient": "ServiceMonitoringServiceGapicClient",
+                    "rpcs": {
+                        "CreateService": {
+                            "methods": [
+                                "createService"
+                            ]
+                        },
+                        "CreateServiceLevelObjective": {
+                            "methods": [
+                                "createServiceLevelObjective"
+                            ]
+                        },
+                        "DeleteService": {
+                            "methods": [
+                                "deleteService"
+                            ]
+                        },
+                        "DeleteServiceLevelObjective": {
+                            "methods": [
+                                "deleteServiceLevelObjective"
+                            ]
+                        },
+                        "GetService": {
+                            "methods": [
+                                "getService"
+                            ]
+                        },
+                        "GetServiceLevelObjective": {
+                            "methods": [
+                                "getServiceLevelObjective"
+                            ]
+                        },
+                        "ListServiceLevelObjectives": {
+                            "methods": [
+                                "listServiceLevelObjectives"
+                            ]
+                        },
+                        "ListServices": {
+                            "methods": [
+                                "listServices"
+                            ]
+                        },
+                        "UpdateService": {
+                            "methods": [
+                                "updateService"
+                            ]
+                        },
+                        "UpdateServiceLevelObjective": {
+                            "methods": [
+                                "updateServiceLevelObjective"
+                            ]
+                        }
+                    }
+                }
+            }
+        },
+        "SnoozeService": {
+            "clients": {
+                "grpc": {
+                    "libraryClient": "SnoozeServiceGapicClient",
+                    "rpcs": {
+                        "CreateSnooze": {
+                            "methods": [
+                                "createSnooze"
+                            ]
+                        },
+                        "GetSnooze": {
+                            "methods": [
+                                "getSnooze"
+                            ]
+                        },
+                        "ListSnoozes": {
+                            "methods": [
+                                "listSnoozes"
+                            ]
+                        },
+                        "UpdateSnooze": {
+                            "methods": [
+                                "updateSnooze"
+                            ]
+                        }
+                    }
+                }
+            }
+        },
+        "UptimeCheckService": {
+            "clients": {
+                "grpc": {
+                    "libraryClient": "UptimeCheckServiceGapicClient",
+                    "rpcs": {
+                        "CreateUptimeCheckConfig": {
+                            "methods": [
+                                "createUptimeCheckConfig"
+                            ]
+                        },
+                        "DeleteUptimeCheckConfig": {
+                            "methods": [
+                                "deleteUptimeCheckConfig"
+                            ]
+                        },
+                        "GetUptimeCheckConfig": {
+                            "methods": [
+                                "getUptimeCheckConfig"
+                            ]
+                        },
+                        "ListUptimeCheckConfigs": {
+                            "methods": [
+                                "listUptimeCheckConfigs"
+                            ]
+                        },
+                        "ListUptimeCheckIps": {
+                            "methods": [
+                                "listUptimeCheckIps"
+                            ]
+                        },
+                        "UpdateUptimeCheckConfig": {
+                            "methods": [
+                                "updateUptimeCheckConfig"
+                            ]
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/resources/alert_policy_service_client_config.json b/owl-bot-staging/Monitoring/v3/src/V3/resources/alert_policy_service_client_config.json
new file mode 100644
index 000000000000..f2664a2cd62b
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/resources/alert_policy_service_client_config.json
@@ -0,0 +1,69 @@
+{
+    "interfaces": {
+        "google.monitoring.v3.AlertPolicyService": {
+            "retry_codes": {
+                "no_retry_codes": [],
+                "no_retry_1_codes": [],
+                "retry_policy_6_codes": [
+                    "UNAVAILABLE"
+                ]
+            },
+            "retry_params": {
+                "no_retry_params": {
+                    "initial_retry_delay_millis": 0,
+                    "retry_delay_multiplier": 0.0,
+                    "max_retry_delay_millis": 0,
+                    "initial_rpc_timeout_millis": 0,
+                    "rpc_timeout_multiplier": 1.0,
+                    "max_rpc_timeout_millis": 0,
+                    "total_timeout_millis": 0
+                },
+                "no_retry_1_params": {
+                    "initial_retry_delay_millis": 0,
+                    "retry_delay_multiplier": 0.0,
+                    "max_retry_delay_millis": 0,
+                    "initial_rpc_timeout_millis": 30000,
+                    "rpc_timeout_multiplier": 1.0,
+                    "max_rpc_timeout_millis": 30000,
+                    "total_timeout_millis": 30000
+                },
+                "retry_policy_6_params": {
+                    "initial_retry_delay_millis": 100,
+                    "retry_delay_multiplier": 1.3,
+                    "max_retry_delay_millis": 30000,
+                    "initial_rpc_timeout_millis": 30000,
+                    "rpc_timeout_multiplier": 1.0,
+                    "max_rpc_timeout_millis": 30000,
+                    "total_timeout_millis": 30000
+                }
+            },
+            "methods": {
+                "CreateAlertPolicy": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "no_retry_1_codes",
+                    "retry_params_name": "no_retry_1_params"
+                },
+                "DeleteAlertPolicy": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_6_codes",
+                    "retry_params_name": "retry_policy_6_params"
+                },
+                "GetAlertPolicy": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_6_codes",
+                    "retry_params_name": "retry_policy_6_params"
+                },
+                "ListAlertPolicies": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_6_codes",
+                    "retry_params_name": "retry_policy_6_params"
+                },
+                "UpdateAlertPolicy": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "no_retry_1_codes",
+                    "retry_params_name": "no_retry_1_params"
+                }
+            }
+        }
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/resources/alert_policy_service_descriptor_config.php b/owl-bot-staging/Monitoring/v3/src/V3/resources/alert_policy_service_descriptor_config.php
new file mode 100644
index 000000000000..995f07d75413
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/resources/alert_policy_service_descriptor_config.php
@@ -0,0 +1,107 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+return [
+    'interfaces' => [
+        'google.monitoring.v3.AlertPolicyService' => [
+            'CreateAlertPolicy' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\AlertPolicy',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'DeleteAlertPolicy' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Protobuf\GPBEmpty',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'GetAlertPolicy' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\AlertPolicy',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'ListAlertPolicies' => [
+                'pageStreaming' => [
+                    'requestPageTokenGetMethod' => 'getPageToken',
+                    'requestPageTokenSetMethod' => 'setPageToken',
+                    'requestPageSizeGetMethod' => 'getPageSize',
+                    'requestPageSizeSetMethod' => 'setPageSize',
+                    'responsePageTokenGetMethod' => 'getNextPageToken',
+                    'resourcesGetMethod' => 'getAlertPolicies',
+                ],
+                'callType' => \Google\ApiCore\Call::PAGINATED_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\ListAlertPoliciesResponse',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'UpdateAlertPolicy' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\AlertPolicy',
+                'headerParams' => [
+                    [
+                        'keyName' => 'alert_policy.name',
+                        'fieldAccessors' => [
+                            'getAlertPolicy',
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'templateMap' => [
+                'alertPolicy' => 'projects/{project}/alertPolicies/{alert_policy}',
+                'alertPolicyCondition' => 'projects/{project}/alertPolicies/{alert_policy}/conditions/{condition}',
+                'folderAlertPolicy' => 'folders/{folder}/alertPolicies/{alert_policy}',
+                'folderAlertPolicyCondition' => 'folders/{folder}/alertPolicies/{alert_policy}/conditions/{condition}',
+                'organizationAlertPolicy' => 'organizations/{organization}/alertPolicies/{alert_policy}',
+                'organizationAlertPolicyCondition' => 'organizations/{organization}/alertPolicies/{alert_policy}/conditions/{condition}',
+                'projectAlertPolicy' => 'projects/{project}/alertPolicies/{alert_policy}',
+                'projectAlertPolicyCondition' => 'projects/{project}/alertPolicies/{alert_policy}/conditions/{condition}',
+            ],
+        ],
+    ],
+];
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/resources/alert_policy_service_rest_client_config.php b/owl-bot-staging/Monitoring/v3/src/V3/resources/alert_policy_service_rest_client_config.php
new file mode 100644
index 000000000000..bb65ee95b1d7
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/resources/alert_policy_service_rest_client_config.php
@@ -0,0 +1,87 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+return [
+    'interfaces' => [
+        'google.monitoring.v3.AlertPolicyService' => [
+            'CreateAlertPolicy' => [
+                'method' => 'post',
+                'uriTemplate' => '/v3/{name=projects/*}/alertPolicies',
+                'body' => 'alert_policy',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'DeleteAlertPolicy' => [
+                'method' => 'delete',
+                'uriTemplate' => '/v3/{name=projects/*/alertPolicies/*}',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'GetAlertPolicy' => [
+                'method' => 'get',
+                'uriTemplate' => '/v3/{name=projects/*/alertPolicies/*}',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'ListAlertPolicies' => [
+                'method' => 'get',
+                'uriTemplate' => '/v3/{name=projects/*}/alertPolicies',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'UpdateAlertPolicy' => [
+                'method' => 'patch',
+                'uriTemplate' => '/v3/{alert_policy.name=projects/*/alertPolicies/*}',
+                'body' => 'alert_policy',
+                'placeholders' => [
+                    'alert_policy.name' => [
+                        'getters' => [
+                            'getAlertPolicy',
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+        ],
+    ],
+    'numericEnums' => true,
+];
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/resources/group_service_client_config.json b/owl-bot-staging/Monitoring/v3/src/V3/resources/group_service_client_config.json
new file mode 100644
index 000000000000..3701e6baf28a
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/resources/group_service_client_config.json
@@ -0,0 +1,86 @@
+{
+    "interfaces": {
+        "google.monitoring.v3.GroupService": {
+            "retry_codes": {
+                "no_retry_codes": [],
+                "retry_policy_1_codes": [
+                    "UNAVAILABLE"
+                ],
+                "retry_policy_2_codes": [
+                    "UNAVAILABLE"
+                ],
+                "no_retry_2_codes": []
+            },
+            "retry_params": {
+                "no_retry_params": {
+                    "initial_retry_delay_millis": 0,
+                    "retry_delay_multiplier": 0.0,
+                    "max_retry_delay_millis": 0,
+                    "initial_rpc_timeout_millis": 0,
+                    "rpc_timeout_multiplier": 1.0,
+                    "max_rpc_timeout_millis": 0,
+                    "total_timeout_millis": 0
+                },
+                "retry_policy_1_params": {
+                    "initial_retry_delay_millis": 100,
+                    "retry_delay_multiplier": 1.3,
+                    "max_retry_delay_millis": 30000,
+                    "initial_rpc_timeout_millis": 30000,
+                    "rpc_timeout_multiplier": 1.0,
+                    "max_rpc_timeout_millis": 30000,
+                    "total_timeout_millis": 30000
+                },
+                "retry_policy_2_params": {
+                    "initial_retry_delay_millis": 100,
+                    "retry_delay_multiplier": 1.3,
+                    "max_retry_delay_millis": 30000,
+                    "initial_rpc_timeout_millis": 180000,
+                    "rpc_timeout_multiplier": 1.0,
+                    "max_rpc_timeout_millis": 180000,
+                    "total_timeout_millis": 180000
+                },
+                "no_retry_2_params": {
+                    "initial_retry_delay_millis": 0,
+                    "retry_delay_multiplier": 0.0,
+                    "max_retry_delay_millis": 0,
+                    "initial_rpc_timeout_millis": 30000,
+                    "rpc_timeout_multiplier": 1.0,
+                    "max_rpc_timeout_millis": 30000,
+                    "total_timeout_millis": 30000
+                }
+            },
+            "methods": {
+                "CreateGroup": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "no_retry_2_codes",
+                    "retry_params_name": "no_retry_2_params"
+                },
+                "DeleteGroup": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_1_codes",
+                    "retry_params_name": "retry_policy_1_params"
+                },
+                "GetGroup": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_1_codes",
+                    "retry_params_name": "retry_policy_1_params"
+                },
+                "ListGroupMembers": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_1_codes",
+                    "retry_params_name": "retry_policy_1_params"
+                },
+                "ListGroups": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_1_codes",
+                    "retry_params_name": "retry_policy_1_params"
+                },
+                "UpdateGroup": {
+                    "timeout_millis": 180000,
+                    "retry_codes_name": "retry_policy_2_codes",
+                    "retry_params_name": "retry_policy_2_params"
+                }
+            }
+        }
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/resources/group_service_descriptor_config.php b/owl-bot-staging/Monitoring/v3/src/V3/resources/group_service_descriptor_config.php
new file mode 100644
index 000000000000..dba3498cf7f6
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/resources/group_service_descriptor_config.php
@@ -0,0 +1,123 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+return [
+    'interfaces' => [
+        'google.monitoring.v3.GroupService' => [
+            'CreateGroup' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\Group',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'DeleteGroup' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Protobuf\GPBEmpty',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'GetGroup' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\Group',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'ListGroupMembers' => [
+                'pageStreaming' => [
+                    'requestPageTokenGetMethod' => 'getPageToken',
+                    'requestPageTokenSetMethod' => 'setPageToken',
+                    'requestPageSizeGetMethod' => 'getPageSize',
+                    'requestPageSizeSetMethod' => 'setPageSize',
+                    'responsePageTokenGetMethod' => 'getNextPageToken',
+                    'resourcesGetMethod' => 'getMembers',
+                ],
+                'callType' => \Google\ApiCore\Call::PAGINATED_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\ListGroupMembersResponse',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'ListGroups' => [
+                'pageStreaming' => [
+                    'requestPageTokenGetMethod' => 'getPageToken',
+                    'requestPageTokenSetMethod' => 'setPageToken',
+                    'requestPageSizeGetMethod' => 'getPageSize',
+                    'requestPageSizeSetMethod' => 'setPageSize',
+                    'responsePageTokenGetMethod' => 'getNextPageToken',
+                    'resourcesGetMethod' => 'getGroup',
+                ],
+                'callType' => \Google\ApiCore\Call::PAGINATED_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\ListGroupsResponse',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'UpdateGroup' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\Group',
+                'headerParams' => [
+                    [
+                        'keyName' => 'group.name',
+                        'fieldAccessors' => [
+                            'getGroup',
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'templateMap' => [
+                'folderGroup' => 'folders/{folder}/groups/{group}',
+                'group' => 'projects/{project}/groups/{group}',
+                'organizationGroup' => 'organizations/{organization}/groups/{group}',
+                'projectGroup' => 'projects/{project}/groups/{group}',
+            ],
+        ],
+    ],
+];
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/resources/group_service_rest_client_config.php b/owl-bot-staging/Monitoring/v3/src/V3/resources/group_service_rest_client_config.php
new file mode 100644
index 000000000000..1ec3e238ee16
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/resources/group_service_rest_client_config.php
@@ -0,0 +1,98 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+return [
+    'interfaces' => [
+        'google.monitoring.v3.GroupService' => [
+            'CreateGroup' => [
+                'method' => 'post',
+                'uriTemplate' => '/v3/{name=projects/*}/groups',
+                'body' => 'group',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'DeleteGroup' => [
+                'method' => 'delete',
+                'uriTemplate' => '/v3/{name=projects/*/groups/*}',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'GetGroup' => [
+                'method' => 'get',
+                'uriTemplate' => '/v3/{name=projects/*/groups/*}',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'ListGroupMembers' => [
+                'method' => 'get',
+                'uriTemplate' => '/v3/{name=projects/*/groups/*}/members',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'ListGroups' => [
+                'method' => 'get',
+                'uriTemplate' => '/v3/{name=projects/*}/groups',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'UpdateGroup' => [
+                'method' => 'put',
+                'uriTemplate' => '/v3/{group.name=projects/*/groups/*}',
+                'body' => 'group',
+                'placeholders' => [
+                    'group.name' => [
+                        'getters' => [
+                            'getGroup',
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+        ],
+    ],
+    'numericEnums' => true,
+];
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/resources/metric_service_client_config.json b/owl-bot-staging/Monitoring/v3/src/V3/resources/metric_service_client_config.json
new file mode 100644
index 000000000000..37d238c05841
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/resources/metric_service_client_config.json
@@ -0,0 +1,101 @@
+{
+    "interfaces": {
+        "google.monitoring.v3.MetricService": {
+            "retry_codes": {
+                "no_retry_codes": [],
+                "no_retry_3_codes": [],
+                "retry_policy_7_codes": [
+                    "UNAVAILABLE"
+                ],
+                "retry_policy_8_codes": [
+                    "UNAVAILABLE"
+                ]
+            },
+            "retry_params": {
+                "no_retry_params": {
+                    "initial_retry_delay_millis": 0,
+                    "retry_delay_multiplier": 0.0,
+                    "max_retry_delay_millis": 0,
+                    "initial_rpc_timeout_millis": 0,
+                    "rpc_timeout_multiplier": 1.0,
+                    "max_rpc_timeout_millis": 0,
+                    "total_timeout_millis": 0
+                },
+                "no_retry_3_params": {
+                    "initial_retry_delay_millis": 0,
+                    "retry_delay_multiplier": 0.0,
+                    "max_retry_delay_millis": 0,
+                    "initial_rpc_timeout_millis": 12000,
+                    "rpc_timeout_multiplier": 1.0,
+                    "max_rpc_timeout_millis": 12000,
+                    "total_timeout_millis": 12000
+                },
+                "retry_policy_7_params": {
+                    "initial_retry_delay_millis": 100,
+                    "retry_delay_multiplier": 1.3,
+                    "max_retry_delay_millis": 30000,
+                    "initial_rpc_timeout_millis": 30000,
+                    "rpc_timeout_multiplier": 1.0,
+                    "max_rpc_timeout_millis": 30000,
+                    "total_timeout_millis": 30000
+                },
+                "retry_policy_8_params": {
+                    "initial_retry_delay_millis": 100,
+                    "retry_delay_multiplier": 1.3,
+                    "max_retry_delay_millis": 30000,
+                    "initial_rpc_timeout_millis": 90000,
+                    "rpc_timeout_multiplier": 1.0,
+                    "max_rpc_timeout_millis": 90000,
+                    "total_timeout_millis": 90000
+                }
+            },
+            "methods": {
+                "CreateMetricDescriptor": {
+                    "timeout_millis": 12000,
+                    "retry_codes_name": "no_retry_3_codes",
+                    "retry_params_name": "no_retry_3_params"
+                },
+                "CreateServiceTimeSeries": {
+                    "timeout_millis": 60000,
+                    "retry_codes_name": "no_retry_codes",
+                    "retry_params_name": "no_retry_params"
+                },
+                "CreateTimeSeries": {
+                    "timeout_millis": 12000,
+                    "retry_codes_name": "no_retry_3_codes",
+                    "retry_params_name": "no_retry_3_params"
+                },
+                "DeleteMetricDescriptor": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_7_codes",
+                    "retry_params_name": "retry_policy_7_params"
+                },
+                "GetMetricDescriptor": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_7_codes",
+                    "retry_params_name": "retry_policy_7_params"
+                },
+                "GetMonitoredResourceDescriptor": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_7_codes",
+                    "retry_params_name": "retry_policy_7_params"
+                },
+                "ListMetricDescriptors": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_7_codes",
+                    "retry_params_name": "retry_policy_7_params"
+                },
+                "ListMonitoredResourceDescriptors": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_7_codes",
+                    "retry_params_name": "retry_policy_7_params"
+                },
+                "ListTimeSeries": {
+                    "timeout_millis": 90000,
+                    "retry_codes_name": "retry_policy_8_codes",
+                    "retry_params_name": "retry_policy_8_params"
+                }
+            }
+        }
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/resources/metric_service_descriptor_config.php b/owl-bot-staging/Monitoring/v3/src/V3/resources/metric_service_descriptor_config.php
new file mode 100644
index 000000000000..7b8896801ebc
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/resources/metric_service_descriptor_config.php
@@ -0,0 +1,174 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+return [
+    'interfaces' => [
+        'google.monitoring.v3.MetricService' => [
+            'CreateMetricDescriptor' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Api\MetricDescriptor',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'CreateServiceTimeSeries' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Protobuf\GPBEmpty',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'CreateTimeSeries' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Protobuf\GPBEmpty',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'DeleteMetricDescriptor' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Protobuf\GPBEmpty',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'GetMetricDescriptor' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Api\MetricDescriptor',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'GetMonitoredResourceDescriptor' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Api\MonitoredResourceDescriptor',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'ListMetricDescriptors' => [
+                'pageStreaming' => [
+                    'requestPageTokenGetMethod' => 'getPageToken',
+                    'requestPageTokenSetMethod' => 'setPageToken',
+                    'requestPageSizeGetMethod' => 'getPageSize',
+                    'requestPageSizeSetMethod' => 'setPageSize',
+                    'responsePageTokenGetMethod' => 'getNextPageToken',
+                    'resourcesGetMethod' => 'getMetricDescriptors',
+                ],
+                'callType' => \Google\ApiCore\Call::PAGINATED_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\ListMetricDescriptorsResponse',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'ListMonitoredResourceDescriptors' => [
+                'pageStreaming' => [
+                    'requestPageTokenGetMethod' => 'getPageToken',
+                    'requestPageTokenSetMethod' => 'setPageToken',
+                    'requestPageSizeGetMethod' => 'getPageSize',
+                    'requestPageSizeSetMethod' => 'setPageSize',
+                    'responsePageTokenGetMethod' => 'getNextPageToken',
+                    'resourcesGetMethod' => 'getResourceDescriptors',
+                ],
+                'callType' => \Google\ApiCore\Call::PAGINATED_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\ListMonitoredResourceDescriptorsResponse',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'ListTimeSeries' => [
+                'pageStreaming' => [
+                    'requestPageTokenGetMethod' => 'getPageToken',
+                    'requestPageTokenSetMethod' => 'setPageToken',
+                    'requestPageSizeGetMethod' => 'getPageSize',
+                    'requestPageSizeSetMethod' => 'setPageSize',
+                    'responsePageTokenGetMethod' => 'getNextPageToken',
+                    'resourcesGetMethod' => 'getTimeSeries',
+                ],
+                'callType' => \Google\ApiCore\Call::PAGINATED_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\ListTimeSeriesResponse',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'templateMap' => [
+                'folder' => 'folders/{folder}',
+                'folderMetricDescriptor' => 'folders/{folder}/metricDescriptors/{metric_descriptor=**}',
+                'folderMonitoredResourceDescriptor' => 'folders/{folder}/monitoredResourceDescriptors/{monitored_resource_descriptor}',
+                'metricDescriptor' => 'projects/{project}/metricDescriptors/{metric_descriptor=**}',
+                'monitoredResourceDescriptor' => 'projects/{project}/monitoredResourceDescriptors/{monitored_resource_descriptor}',
+                'organization' => 'organizations/{organization}',
+                'organizationMetricDescriptor' => 'organizations/{organization}/metricDescriptors/{metric_descriptor=**}',
+                'organizationMonitoredResourceDescriptor' => 'organizations/{organization}/monitoredResourceDescriptors/{monitored_resource_descriptor}',
+                'project' => 'projects/{project}',
+                'projectMetricDescriptor' => 'projects/{project}/metricDescriptors/{metric_descriptor=**}',
+                'projectMonitoredResourceDescriptor' => 'projects/{project}/monitoredResourceDescriptors/{monitored_resource_descriptor}',
+                'workspace' => 'projects/{project}',
+            ],
+        ],
+    ],
+];
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/resources/metric_service_rest_client_config.php b/owl-bot-staging/Monitoring/v3/src/V3/resources/metric_service_rest_client_config.php
new file mode 100644
index 000000000000..0367626add51
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/resources/metric_service_rest_client_config.php
@@ -0,0 +1,156 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+return [
+    'interfaces' => [
+        'google.monitoring.v3.MetricService' => [
+            'CreateMetricDescriptor' => [
+                'method' => 'post',
+                'uriTemplate' => '/v3/{name=projects/*}/metricDescriptors',
+                'body' => 'metric_descriptor',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'CreateServiceTimeSeries' => [
+                'method' => 'post',
+                'uriTemplate' => '/v3/{name=projects/*}/timeSeries:createService',
+                'body' => '*',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'CreateTimeSeries' => [
+                'method' => 'post',
+                'uriTemplate' => '/v3/{name=projects/*}/timeSeries',
+                'body' => '*',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'DeleteMetricDescriptor' => [
+                'method' => 'delete',
+                'uriTemplate' => '/v3/{name=projects/*/metricDescriptors/**}',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'GetMetricDescriptor' => [
+                'method' => 'get',
+                'uriTemplate' => '/v3/{name=projects/*/metricDescriptors/**}',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'GetMonitoredResourceDescriptor' => [
+                'method' => 'get',
+                'uriTemplate' => '/v3/{name=projects/*/monitoredResourceDescriptors/**}',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'ListMetricDescriptors' => [
+                'method' => 'get',
+                'uriTemplate' => '/v3/{name=projects/*}/metricDescriptors',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'ListMonitoredResourceDescriptors' => [
+                'method' => 'get',
+                'uriTemplate' => '/v3/{name=projects/*}/monitoredResourceDescriptors',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'ListTimeSeries' => [
+                'method' => 'get',
+                'uriTemplate' => '/v3/{name=projects/*}/timeSeries',
+                'additionalBindings' => [
+                    [
+                        'method' => 'get',
+                        'uriTemplate' => '/v3/{name=organizations/*}/timeSeries',
+                        'queryParams' => [
+                            'filter',
+                            'interval',
+                            'view',
+                        ],
+                    ],
+                    [
+                        'method' => 'get',
+                        'uriTemplate' => '/v3/{name=folders/*}/timeSeries',
+                        'queryParams' => [
+                            'filter',
+                            'interval',
+                            'view',
+                        ],
+                    ],
+                ],
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+                'queryParams' => [
+                    'filter',
+                    'interval',
+                    'view',
+                ],
+            ],
+        ],
+    ],
+    'numericEnums' => true,
+];
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/resources/notification_channel_service_client_config.json b/owl-bot-staging/Monitoring/v3/src/V3/resources/notification_channel_service_client_config.json
new file mode 100644
index 000000000000..90437e7f64c3
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/resources/notification_channel_service_client_config.json
@@ -0,0 +1,94 @@
+{
+    "interfaces": {
+        "google.monitoring.v3.NotificationChannelService": {
+            "retry_codes": {
+                "no_retry_codes": [],
+                "retry_policy_3_codes": [
+                    "UNAVAILABLE"
+                ],
+                "no_retry_5_codes": []
+            },
+            "retry_params": {
+                "no_retry_params": {
+                    "initial_retry_delay_millis": 0,
+                    "retry_delay_multiplier": 0.0,
+                    "max_retry_delay_millis": 0,
+                    "initial_rpc_timeout_millis": 0,
+                    "rpc_timeout_multiplier": 1.0,
+                    "max_rpc_timeout_millis": 0,
+                    "total_timeout_millis": 0
+                },
+                "retry_policy_3_params": {
+                    "initial_retry_delay_millis": 100,
+                    "retry_delay_multiplier": 1.3,
+                    "max_retry_delay_millis": 30000,
+                    "initial_rpc_timeout_millis": 30000,
+                    "rpc_timeout_multiplier": 1.0,
+                    "max_rpc_timeout_millis": 30000,
+                    "total_timeout_millis": 30000
+                },
+                "no_retry_5_params": {
+                    "initial_retry_delay_millis": 0,
+                    "retry_delay_multiplier": 0.0,
+                    "max_retry_delay_millis": 0,
+                    "initial_rpc_timeout_millis": 30000,
+                    "rpc_timeout_multiplier": 1.0,
+                    "max_rpc_timeout_millis": 30000,
+                    "total_timeout_millis": 30000
+                }
+            },
+            "methods": {
+                "CreateNotificationChannel": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "no_retry_5_codes",
+                    "retry_params_name": "no_retry_5_params"
+                },
+                "DeleteNotificationChannel": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_3_codes",
+                    "retry_params_name": "retry_policy_3_params"
+                },
+                "GetNotificationChannel": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_3_codes",
+                    "retry_params_name": "retry_policy_3_params"
+                },
+                "GetNotificationChannelDescriptor": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_3_codes",
+                    "retry_params_name": "retry_policy_3_params"
+                },
+                "GetNotificationChannelVerificationCode": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_3_codes",
+                    "retry_params_name": "retry_policy_3_params"
+                },
+                "ListNotificationChannelDescriptors": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_3_codes",
+                    "retry_params_name": "retry_policy_3_params"
+                },
+                "ListNotificationChannels": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_3_codes",
+                    "retry_params_name": "retry_policy_3_params"
+                },
+                "SendNotificationChannelVerificationCode": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "no_retry_5_codes",
+                    "retry_params_name": "no_retry_5_params"
+                },
+                "UpdateNotificationChannel": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "no_retry_5_codes",
+                    "retry_params_name": "no_retry_5_params"
+                },
+                "VerifyNotificationChannel": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_3_codes",
+                    "retry_params_name": "retry_policy_3_params"
+                }
+            }
+        }
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/resources/notification_channel_service_descriptor_config.php b/owl-bot-staging/Monitoring/v3/src/V3/resources/notification_channel_service_descriptor_config.php
new file mode 100644
index 000000000000..6088b2f89bf7
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/resources/notification_channel_service_descriptor_config.php
@@ -0,0 +1,175 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+return [
+    'interfaces' => [
+        'google.monitoring.v3.NotificationChannelService' => [
+            'CreateNotificationChannel' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\NotificationChannel',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'DeleteNotificationChannel' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Protobuf\GPBEmpty',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'GetNotificationChannel' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\NotificationChannel',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'GetNotificationChannelDescriptor' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\NotificationChannelDescriptor',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'GetNotificationChannelVerificationCode' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\GetNotificationChannelVerificationCodeResponse',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'ListNotificationChannelDescriptors' => [
+                'pageStreaming' => [
+                    'requestPageTokenGetMethod' => 'getPageToken',
+                    'requestPageTokenSetMethod' => 'setPageToken',
+                    'requestPageSizeGetMethod' => 'getPageSize',
+                    'requestPageSizeSetMethod' => 'setPageSize',
+                    'responsePageTokenGetMethod' => 'getNextPageToken',
+                    'resourcesGetMethod' => 'getChannelDescriptors',
+                ],
+                'callType' => \Google\ApiCore\Call::PAGINATED_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\ListNotificationChannelDescriptorsResponse',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'ListNotificationChannels' => [
+                'pageStreaming' => [
+                    'requestPageTokenGetMethod' => 'getPageToken',
+                    'requestPageTokenSetMethod' => 'setPageToken',
+                    'requestPageSizeGetMethod' => 'getPageSize',
+                    'requestPageSizeSetMethod' => 'setPageSize',
+                    'responsePageTokenGetMethod' => 'getNextPageToken',
+                    'resourcesGetMethod' => 'getNotificationChannels',
+                ],
+                'callType' => \Google\ApiCore\Call::PAGINATED_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\ListNotificationChannelsResponse',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'SendNotificationChannelVerificationCode' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Protobuf\GPBEmpty',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'UpdateNotificationChannel' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\NotificationChannel',
+                'headerParams' => [
+                    [
+                        'keyName' => 'notification_channel.name',
+                        'fieldAccessors' => [
+                            'getNotificationChannel',
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'VerifyNotificationChannel' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\NotificationChannel',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'templateMap' => [
+                'folderChannelDescriptor' => 'folders/{folder}/notificationChannelDescriptors/{channel_descriptor}',
+                'folderNotificationChannel' => 'folders/{folder}/notificationChannels/{notification_channel}',
+                'notificationChannel' => 'projects/{project}/notificationChannels/{notification_channel}',
+                'notificationChannelDescriptor' => 'projects/{project}/notificationChannelDescriptors/{channel_descriptor}',
+                'organizationChannelDescriptor' => 'organizations/{organization}/notificationChannelDescriptors/{channel_descriptor}',
+                'organizationNotificationChannel' => 'organizations/{organization}/notificationChannels/{notification_channel}',
+                'projectChannelDescriptor' => 'projects/{project}/notificationChannelDescriptors/{channel_descriptor}',
+                'projectNotificationChannel' => 'projects/{project}/notificationChannels/{notification_channel}',
+            ],
+        ],
+    ],
+];
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/resources/notification_channel_service_rest_client_config.php b/owl-bot-staging/Monitoring/v3/src/V3/resources/notification_channel_service_rest_client_config.php
new file mode 100644
index 000000000000..822c7ebc9340
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/resources/notification_channel_service_rest_client_config.php
@@ -0,0 +1,145 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+return [
+    'interfaces' => [
+        'google.monitoring.v3.NotificationChannelService' => [
+            'CreateNotificationChannel' => [
+                'method' => 'post',
+                'uriTemplate' => '/v3/{name=projects/*}/notificationChannels',
+                'body' => 'notification_channel',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'DeleteNotificationChannel' => [
+                'method' => 'delete',
+                'uriTemplate' => '/v3/{name=projects/*/notificationChannels/*}',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'GetNotificationChannel' => [
+                'method' => 'get',
+                'uriTemplate' => '/v3/{name=projects/*/notificationChannels/*}',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'GetNotificationChannelDescriptor' => [
+                'method' => 'get',
+                'uriTemplate' => '/v3/{name=projects/*/notificationChannelDescriptors/*}',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'GetNotificationChannelVerificationCode' => [
+                'method' => 'post',
+                'uriTemplate' => '/v3/{name=projects/*/notificationChannels/*}:getVerificationCode',
+                'body' => '*',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'ListNotificationChannelDescriptors' => [
+                'method' => 'get',
+                'uriTemplate' => '/v3/{name=projects/*}/notificationChannelDescriptors',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'ListNotificationChannels' => [
+                'method' => 'get',
+                'uriTemplate' => '/v3/{name=projects/*}/notificationChannels',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'SendNotificationChannelVerificationCode' => [
+                'method' => 'post',
+                'uriTemplate' => '/v3/{name=projects/*/notificationChannels/*}:sendVerificationCode',
+                'body' => '*',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'UpdateNotificationChannel' => [
+                'method' => 'patch',
+                'uriTemplate' => '/v3/{notification_channel.name=projects/*/notificationChannels/*}',
+                'body' => 'notification_channel',
+                'placeholders' => [
+                    'notification_channel.name' => [
+                        'getters' => [
+                            'getNotificationChannel',
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'VerifyNotificationChannel' => [
+                'method' => 'post',
+                'uriTemplate' => '/v3/{name=projects/*/notificationChannels/*}:verify',
+                'body' => '*',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+        ],
+    ],
+    'numericEnums' => true,
+];
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/resources/query_service_client_config.json b/owl-bot-staging/Monitoring/v3/src/V3/resources/query_service_client_config.json
new file mode 100644
index 000000000000..c20408d0eced
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/resources/query_service_client_config.json
@@ -0,0 +1,27 @@
+{
+    "interfaces": {
+        "google.monitoring.v3.QueryService": {
+            "retry_codes": {
+                "no_retry_codes": []
+            },
+            "retry_params": {
+                "no_retry_params": {
+                    "initial_retry_delay_millis": 0,
+                    "retry_delay_multiplier": 0.0,
+                    "max_retry_delay_millis": 0,
+                    "initial_rpc_timeout_millis": 0,
+                    "rpc_timeout_multiplier": 1.0,
+                    "max_rpc_timeout_millis": 0,
+                    "total_timeout_millis": 0
+                }
+            },
+            "methods": {
+                "QueryTimeSeries": {
+                    "timeout_millis": 60000,
+                    "retry_codes_name": "no_retry_codes",
+                    "retry_params_name": "no_retry_params"
+                }
+            }
+        }
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/resources/query_service_descriptor_config.php b/owl-bot-staging/Monitoring/v3/src/V3/resources/query_service_descriptor_config.php
new file mode 100644
index 000000000000..4b6dc680ebc6
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/resources/query_service_descriptor_config.php
@@ -0,0 +1,48 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+return [
+    'interfaces' => [
+        'google.monitoring.v3.QueryService' => [
+            'QueryTimeSeries' => [
+                'pageStreaming' => [
+                    'requestPageTokenGetMethod' => 'getPageToken',
+                    'requestPageTokenSetMethod' => 'setPageToken',
+                    'requestPageSizeGetMethod' => 'getPageSize',
+                    'requestPageSizeSetMethod' => 'setPageSize',
+                    'responsePageTokenGetMethod' => 'getNextPageToken',
+                    'resourcesGetMethod' => 'getTimeSeriesData',
+                ],
+                'callType' => \Google\ApiCore\Call::PAGINATED_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\QueryTimeSeriesResponse',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+        ],
+    ],
+];
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/resources/query_service_rest_client_config.php b/owl-bot-staging/Monitoring/v3/src/V3/resources/query_service_rest_client_config.php
new file mode 100644
index 000000000000..38b688dbab52
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/resources/query_service_rest_client_config.php
@@ -0,0 +1,41 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+return [
+    'interfaces' => [
+        'google.monitoring.v3.QueryService' => [
+            'QueryTimeSeries' => [
+                'method' => 'post',
+                'uriTemplate' => '/v3/{name=projects/*}/timeSeries:query',
+                'body' => '*',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+        ],
+    ],
+    'numericEnums' => true,
+];
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/resources/service_monitoring_service_client_config.json b/owl-bot-staging/Monitoring/v3/src/V3/resources/service_monitoring_service_client_config.json
new file mode 100644
index 000000000000..daae71bdd457
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/resources/service_monitoring_service_client_config.json
@@ -0,0 +1,94 @@
+{
+    "interfaces": {
+        "google.monitoring.v3.ServiceMonitoringService": {
+            "retry_codes": {
+                "no_retry_codes": [],
+                "no_retry_4_codes": [],
+                "retry_policy_4_codes": [
+                    "UNAVAILABLE"
+                ]
+            },
+            "retry_params": {
+                "no_retry_params": {
+                    "initial_retry_delay_millis": 0,
+                    "retry_delay_multiplier": 0.0,
+                    "max_retry_delay_millis": 0,
+                    "initial_rpc_timeout_millis": 0,
+                    "rpc_timeout_multiplier": 1.0,
+                    "max_rpc_timeout_millis": 0,
+                    "total_timeout_millis": 0
+                },
+                "no_retry_4_params": {
+                    "initial_retry_delay_millis": 0,
+                    "retry_delay_multiplier": 0.0,
+                    "max_retry_delay_millis": 0,
+                    "initial_rpc_timeout_millis": 30000,
+                    "rpc_timeout_multiplier": 1.0,
+                    "max_rpc_timeout_millis": 30000,
+                    "total_timeout_millis": 30000
+                },
+                "retry_policy_4_params": {
+                    "initial_retry_delay_millis": 100,
+                    "retry_delay_multiplier": 1.3,
+                    "max_retry_delay_millis": 30000,
+                    "initial_rpc_timeout_millis": 30000,
+                    "rpc_timeout_multiplier": 1.0,
+                    "max_rpc_timeout_millis": 30000,
+                    "total_timeout_millis": 30000
+                }
+            },
+            "methods": {
+                "CreateService": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "no_retry_4_codes",
+                    "retry_params_name": "no_retry_4_params"
+                },
+                "CreateServiceLevelObjective": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "no_retry_4_codes",
+                    "retry_params_name": "no_retry_4_params"
+                },
+                "DeleteService": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_4_codes",
+                    "retry_params_name": "retry_policy_4_params"
+                },
+                "DeleteServiceLevelObjective": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_4_codes",
+                    "retry_params_name": "retry_policy_4_params"
+                },
+                "GetService": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_4_codes",
+                    "retry_params_name": "retry_policy_4_params"
+                },
+                "GetServiceLevelObjective": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_4_codes",
+                    "retry_params_name": "retry_policy_4_params"
+                },
+                "ListServiceLevelObjectives": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_4_codes",
+                    "retry_params_name": "retry_policy_4_params"
+                },
+                "ListServices": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_4_codes",
+                    "retry_params_name": "retry_policy_4_params"
+                },
+                "UpdateService": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "no_retry_4_codes",
+                    "retry_params_name": "no_retry_4_params"
+                },
+                "UpdateServiceLevelObjective": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "no_retry_4_codes",
+                    "retry_params_name": "no_retry_4_params"
+                }
+            }
+        }
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/resources/service_monitoring_service_descriptor_config.php b/owl-bot-staging/Monitoring/v3/src/V3/resources/service_monitoring_service_descriptor_config.php
new file mode 100644
index 000000000000..739ca8709340
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/resources/service_monitoring_service_descriptor_config.php
@@ -0,0 +1,176 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+return [
+    'interfaces' => [
+        'google.monitoring.v3.ServiceMonitoringService' => [
+            'CreateService' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\Service',
+                'headerParams' => [
+                    [
+                        'keyName' => 'parent',
+                        'fieldAccessors' => [
+                            'getParent',
+                        ],
+                    ],
+                ],
+            ],
+            'CreateServiceLevelObjective' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\ServiceLevelObjective',
+                'headerParams' => [
+                    [
+                        'keyName' => 'parent',
+                        'fieldAccessors' => [
+                            'getParent',
+                        ],
+                    ],
+                ],
+            ],
+            'DeleteService' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Protobuf\GPBEmpty',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'DeleteServiceLevelObjective' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Protobuf\GPBEmpty',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'GetService' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\Service',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'GetServiceLevelObjective' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\ServiceLevelObjective',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'ListServiceLevelObjectives' => [
+                'pageStreaming' => [
+                    'requestPageTokenGetMethod' => 'getPageToken',
+                    'requestPageTokenSetMethod' => 'setPageToken',
+                    'requestPageSizeGetMethod' => 'getPageSize',
+                    'requestPageSizeSetMethod' => 'setPageSize',
+                    'responsePageTokenGetMethod' => 'getNextPageToken',
+                    'resourcesGetMethod' => 'getServiceLevelObjectives',
+                ],
+                'callType' => \Google\ApiCore\Call::PAGINATED_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\ListServiceLevelObjectivesResponse',
+                'headerParams' => [
+                    [
+                        'keyName' => 'parent',
+                        'fieldAccessors' => [
+                            'getParent',
+                        ],
+                    ],
+                ],
+            ],
+            'ListServices' => [
+                'pageStreaming' => [
+                    'requestPageTokenGetMethod' => 'getPageToken',
+                    'requestPageTokenSetMethod' => 'setPageToken',
+                    'requestPageSizeGetMethod' => 'getPageSize',
+                    'requestPageSizeSetMethod' => 'setPageSize',
+                    'responsePageTokenGetMethod' => 'getNextPageToken',
+                    'resourcesGetMethod' => 'getServices',
+                ],
+                'callType' => \Google\ApiCore\Call::PAGINATED_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\ListServicesResponse',
+                'headerParams' => [
+                    [
+                        'keyName' => 'parent',
+                        'fieldAccessors' => [
+                            'getParent',
+                        ],
+                    ],
+                ],
+            ],
+            'UpdateService' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\Service',
+                'headerParams' => [
+                    [
+                        'keyName' => 'service.name',
+                        'fieldAccessors' => [
+                            'getService',
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'UpdateServiceLevelObjective' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\ServiceLevelObjective',
+                'headerParams' => [
+                    [
+                        'keyName' => 'service_level_objective.name',
+                        'fieldAccessors' => [
+                            'getServiceLevelObjective',
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'templateMap' => [
+                'folderService' => 'folders/{folder}/services/{service}',
+                'folderServiceServiceLevelObjective' => 'folders/{folder}/services/{service}/serviceLevelObjectives/{service_level_objective}',
+                'organizationService' => 'organizations/{organization}/services/{service}',
+                'organizationServiceServiceLevelObjective' => 'organizations/{organization}/services/{service}/serviceLevelObjectives/{service_level_objective}',
+                'projectService' => 'projects/{project}/services/{service}',
+                'projectServiceServiceLevelObjective' => 'projects/{project}/services/{service}/serviceLevelObjectives/{service_level_objective}',
+                'service' => 'projects/{project}/services/{service}',
+                'serviceLevelObjective' => 'projects/{project}/services/{service}/serviceLevelObjectives/{service_level_objective}',
+            ],
+        ],
+    ],
+];
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/resources/service_monitoring_service_rest_client_config.php b/owl-bot-staging/Monitoring/v3/src/V3/resources/service_monitoring_service_rest_client_config.php
new file mode 100644
index 000000000000..f7ca03dded7a
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/resources/service_monitoring_service_rest_client_config.php
@@ -0,0 +1,145 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+return [
+    'interfaces' => [
+        'google.monitoring.v3.ServiceMonitoringService' => [
+            'CreateService' => [
+                'method' => 'post',
+                'uriTemplate' => '/v3/{parent=*/*}/services',
+                'body' => 'service',
+                'placeholders' => [
+                    'parent' => [
+                        'getters' => [
+                            'getParent',
+                        ],
+                    ],
+                ],
+            ],
+            'CreateServiceLevelObjective' => [
+                'method' => 'post',
+                'uriTemplate' => '/v3/{parent=*/*/services/*}/serviceLevelObjectives',
+                'body' => 'service_level_objective',
+                'placeholders' => [
+                    'parent' => [
+                        'getters' => [
+                            'getParent',
+                        ],
+                    ],
+                ],
+            ],
+            'DeleteService' => [
+                'method' => 'delete',
+                'uriTemplate' => '/v3/{name=*/*/services/*}',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'DeleteServiceLevelObjective' => [
+                'method' => 'delete',
+                'uriTemplate' => '/v3/{name=*/*/services/*/serviceLevelObjectives/*}',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'GetService' => [
+                'method' => 'get',
+                'uriTemplate' => '/v3/{name=*/*/services/*}',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'GetServiceLevelObjective' => [
+                'method' => 'get',
+                'uriTemplate' => '/v3/{name=*/*/services/*/serviceLevelObjectives/*}',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'ListServiceLevelObjectives' => [
+                'method' => 'get',
+                'uriTemplate' => '/v3/{parent=*/*/services/*}/serviceLevelObjectives',
+                'placeholders' => [
+                    'parent' => [
+                        'getters' => [
+                            'getParent',
+                        ],
+                    ],
+                ],
+            ],
+            'ListServices' => [
+                'method' => 'get',
+                'uriTemplate' => '/v3/{parent=*/*}/services',
+                'placeholders' => [
+                    'parent' => [
+                        'getters' => [
+                            'getParent',
+                        ],
+                    ],
+                ],
+            ],
+            'UpdateService' => [
+                'method' => 'patch',
+                'uriTemplate' => '/v3/{service.name=*/*/services/*}',
+                'body' => 'service',
+                'placeholders' => [
+                    'service.name' => [
+                        'getters' => [
+                            'getService',
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'UpdateServiceLevelObjective' => [
+                'method' => 'patch',
+                'uriTemplate' => '/v3/{service_level_objective.name=*/*/services/*/serviceLevelObjectives/*}',
+                'body' => 'service_level_objective',
+                'placeholders' => [
+                    'service_level_objective.name' => [
+                        'getters' => [
+                            'getServiceLevelObjective',
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+        ],
+    ],
+    'numericEnums' => true,
+];
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/resources/snooze_service_client_config.json b/owl-bot-staging/Monitoring/v3/src/V3/resources/snooze_service_client_config.json
new file mode 100644
index 000000000000..0acb65e12bd9
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/resources/snooze_service_client_config.json
@@ -0,0 +1,64 @@
+{
+    "interfaces": {
+        "google.monitoring.v3.SnoozeService": {
+            "retry_codes": {
+                "no_retry_codes": [],
+                "retry_policy_9_codes": [
+                    "UNAVAILABLE"
+                ],
+                "no_retry_7_codes": []
+            },
+            "retry_params": {
+                "no_retry_params": {
+                    "initial_retry_delay_millis": 0,
+                    "retry_delay_multiplier": 0.0,
+                    "max_retry_delay_millis": 0,
+                    "initial_rpc_timeout_millis": 0,
+                    "rpc_timeout_multiplier": 1.0,
+                    "max_rpc_timeout_millis": 0,
+                    "total_timeout_millis": 0
+                },
+                "retry_policy_9_params": {
+                    "initial_retry_delay_millis": 100,
+                    "retry_delay_multiplier": 1.3,
+                    "max_retry_delay_millis": 30000,
+                    "initial_rpc_timeout_millis": 30000,
+                    "rpc_timeout_multiplier": 1.0,
+                    "max_rpc_timeout_millis": 30000,
+                    "total_timeout_millis": 30000
+                },
+                "no_retry_7_params": {
+                    "initial_retry_delay_millis": 0,
+                    "retry_delay_multiplier": 0.0,
+                    "max_retry_delay_millis": 0,
+                    "initial_rpc_timeout_millis": 30000,
+                    "rpc_timeout_multiplier": 1.0,
+                    "max_rpc_timeout_millis": 30000,
+                    "total_timeout_millis": 30000
+                }
+            },
+            "methods": {
+                "CreateSnooze": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "no_retry_7_codes",
+                    "retry_params_name": "no_retry_7_params"
+                },
+                "GetSnooze": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_9_codes",
+                    "retry_params_name": "retry_policy_9_params"
+                },
+                "ListSnoozes": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_9_codes",
+                    "retry_params_name": "retry_policy_9_params"
+                },
+                "UpdateSnooze": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "no_retry_7_codes",
+                    "retry_params_name": "no_retry_7_params"
+                }
+            }
+        }
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/resources/snooze_service_descriptor_config.php b/owl-bot-staging/Monitoring/v3/src/V3/resources/snooze_service_descriptor_config.php
new file mode 100644
index 000000000000..57e5c8ab3863
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/resources/snooze_service_descriptor_config.php
@@ -0,0 +1,94 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+return [
+    'interfaces' => [
+        'google.monitoring.v3.SnoozeService' => [
+            'CreateSnooze' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\Snooze',
+                'headerParams' => [
+                    [
+                        'keyName' => 'parent',
+                        'fieldAccessors' => [
+                            'getParent',
+                        ],
+                    ],
+                ],
+            ],
+            'GetSnooze' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\Snooze',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'ListSnoozes' => [
+                'pageStreaming' => [
+                    'requestPageTokenGetMethod' => 'getPageToken',
+                    'requestPageTokenSetMethod' => 'setPageToken',
+                    'requestPageSizeGetMethod' => 'getPageSize',
+                    'requestPageSizeSetMethod' => 'setPageSize',
+                    'responsePageTokenGetMethod' => 'getNextPageToken',
+                    'resourcesGetMethod' => 'getSnoozes',
+                ],
+                'callType' => \Google\ApiCore\Call::PAGINATED_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\ListSnoozesResponse',
+                'headerParams' => [
+                    [
+                        'keyName' => 'parent',
+                        'fieldAccessors' => [
+                            'getParent',
+                        ],
+                    ],
+                ],
+            ],
+            'UpdateSnooze' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\Snooze',
+                'headerParams' => [
+                    [
+                        'keyName' => 'snooze.name',
+                        'fieldAccessors' => [
+                            'getSnooze',
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'templateMap' => [
+                'alertPolicy' => 'projects/{project}/alertPolicies/{alert_policy}',
+                'folderAlertPolicy' => 'folders/{folder}/alertPolicies/{alert_policy}',
+                'organizationAlertPolicy' => 'organizations/{organization}/alertPolicies/{alert_policy}',
+                'project' => 'projects/{project}',
+                'projectAlertPolicy' => 'projects/{project}/alertPolicies/{alert_policy}',
+                'snooze' => 'projects/{project}/snoozes/{snooze}',
+                'workspace' => 'projects/{project}',
+            ],
+        ],
+    ],
+];
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/resources/snooze_service_rest_client_config.php b/owl-bot-staging/Monitoring/v3/src/V3/resources/snooze_service_rest_client_config.php
new file mode 100644
index 000000000000..a3b5e3574b8e
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/resources/snooze_service_rest_client_config.php
@@ -0,0 +1,79 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+return [
+    'interfaces' => [
+        'google.monitoring.v3.SnoozeService' => [
+            'CreateSnooze' => [
+                'method' => 'post',
+                'uriTemplate' => '/v3/{parent=projects/*}/snoozes',
+                'body' => 'snooze',
+                'placeholders' => [
+                    'parent' => [
+                        'getters' => [
+                            'getParent',
+                        ],
+                    ],
+                ],
+            ],
+            'GetSnooze' => [
+                'method' => 'get',
+                'uriTemplate' => '/v3/{name=projects/*/snoozes/*}',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'ListSnoozes' => [
+                'method' => 'get',
+                'uriTemplate' => '/v3/{parent=projects/*}/snoozes',
+                'placeholders' => [
+                    'parent' => [
+                        'getters' => [
+                            'getParent',
+                        ],
+                    ],
+                ],
+            ],
+            'UpdateSnooze' => [
+                'method' => 'patch',
+                'uriTemplate' => '/v3/{snooze.name=projects/*/snoozes/*}',
+                'body' => 'snooze',
+                'placeholders' => [
+                    'snooze.name' => [
+                        'getters' => [
+                            'getSnooze',
+                            'getName',
+                        ],
+                    ],
+                ],
+                'queryParams' => [
+                    'update_mask',
+                ],
+            ],
+        ],
+    ],
+    'numericEnums' => true,
+];
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/resources/uptime_check_service_client_config.json b/owl-bot-staging/Monitoring/v3/src/V3/resources/uptime_check_service_client_config.json
new file mode 100644
index 000000000000..4e19af233897
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/resources/uptime_check_service_client_config.json
@@ -0,0 +1,74 @@
+{
+    "interfaces": {
+        "google.monitoring.v3.UptimeCheckService": {
+            "retry_codes": {
+                "no_retry_codes": [],
+                "retry_policy_5_codes": [
+                    "UNAVAILABLE"
+                ],
+                "no_retry_6_codes": []
+            },
+            "retry_params": {
+                "no_retry_params": {
+                    "initial_retry_delay_millis": 0,
+                    "retry_delay_multiplier": 0.0,
+                    "max_retry_delay_millis": 0,
+                    "initial_rpc_timeout_millis": 0,
+                    "rpc_timeout_multiplier": 1.0,
+                    "max_rpc_timeout_millis": 0,
+                    "total_timeout_millis": 0
+                },
+                "retry_policy_5_params": {
+                    "initial_retry_delay_millis": 100,
+                    "retry_delay_multiplier": 1.3,
+                    "max_retry_delay_millis": 30000,
+                    "initial_rpc_timeout_millis": 30000,
+                    "rpc_timeout_multiplier": 1.0,
+                    "max_rpc_timeout_millis": 30000,
+                    "total_timeout_millis": 30000
+                },
+                "no_retry_6_params": {
+                    "initial_retry_delay_millis": 0,
+                    "retry_delay_multiplier": 0.0,
+                    "max_retry_delay_millis": 0,
+                    "initial_rpc_timeout_millis": 30000,
+                    "rpc_timeout_multiplier": 1.0,
+                    "max_rpc_timeout_millis": 30000,
+                    "total_timeout_millis": 30000
+                }
+            },
+            "methods": {
+                "CreateUptimeCheckConfig": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "no_retry_6_codes",
+                    "retry_params_name": "no_retry_6_params"
+                },
+                "DeleteUptimeCheckConfig": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_5_codes",
+                    "retry_params_name": "retry_policy_5_params"
+                },
+                "GetUptimeCheckConfig": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_5_codes",
+                    "retry_params_name": "retry_policy_5_params"
+                },
+                "ListUptimeCheckConfigs": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_5_codes",
+                    "retry_params_name": "retry_policy_5_params"
+                },
+                "ListUptimeCheckIps": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "retry_policy_5_codes",
+                    "retry_params_name": "retry_policy_5_params"
+                },
+                "UpdateUptimeCheckConfig": {
+                    "timeout_millis": 30000,
+                    "retry_codes_name": "no_retry_6_codes",
+                    "retry_params_name": "no_retry_6_params"
+                }
+            }
+        }
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/resources/uptime_check_service_descriptor_config.php b/owl-bot-staging/Monitoring/v3/src/V3/resources/uptime_check_service_descriptor_config.php
new file mode 100644
index 000000000000..e1d4dafc1ca4
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/resources/uptime_check_service_descriptor_config.php
@@ -0,0 +1,116 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+return [
+    'interfaces' => [
+        'google.monitoring.v3.UptimeCheckService' => [
+            'CreateUptimeCheckConfig' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\UptimeCheckConfig',
+                'headerParams' => [
+                    [
+                        'keyName' => 'parent',
+                        'fieldAccessors' => [
+                            'getParent',
+                        ],
+                    ],
+                ],
+            ],
+            'DeleteUptimeCheckConfig' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Protobuf\GPBEmpty',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'GetUptimeCheckConfig' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\UptimeCheckConfig',
+                'headerParams' => [
+                    [
+                        'keyName' => 'name',
+                        'fieldAccessors' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'ListUptimeCheckConfigs' => [
+                'pageStreaming' => [
+                    'requestPageTokenGetMethod' => 'getPageToken',
+                    'requestPageTokenSetMethod' => 'setPageToken',
+                    'requestPageSizeGetMethod' => 'getPageSize',
+                    'requestPageSizeSetMethod' => 'setPageSize',
+                    'responsePageTokenGetMethod' => 'getNextPageToken',
+                    'resourcesGetMethod' => 'getUptimeCheckConfigs',
+                ],
+                'callType' => \Google\ApiCore\Call::PAGINATED_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\ListUptimeCheckConfigsResponse',
+                'headerParams' => [
+                    [
+                        'keyName' => 'parent',
+                        'fieldAccessors' => [
+                            'getParent',
+                        ],
+                    ],
+                ],
+            ],
+            'ListUptimeCheckIps' => [
+                'pageStreaming' => [
+                    'requestPageTokenGetMethod' => 'getPageToken',
+                    'requestPageTokenSetMethod' => 'setPageToken',
+                    'requestPageSizeGetMethod' => 'getPageSize',
+                    'requestPageSizeSetMethod' => 'setPageSize',
+                    'responsePageTokenGetMethod' => 'getNextPageToken',
+                    'resourcesGetMethod' => 'getUptimeCheckIps',
+                ],
+                'callType' => \Google\ApiCore\Call::PAGINATED_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\ListUptimeCheckIpsResponse',
+            ],
+            'UpdateUptimeCheckConfig' => [
+                'callType' => \Google\ApiCore\Call::UNARY_CALL,
+                'responseType' => 'Google\Cloud\Monitoring\V3\UptimeCheckConfig',
+                'headerParams' => [
+                    [
+                        'keyName' => 'uptime_check_config.name',
+                        'fieldAccessors' => [
+                            'getUptimeCheckConfig',
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'templateMap' => [
+                'folderUptimeCheckConfig' => 'folders/{folder}/uptimeCheckConfigs/{uptime_check_config}',
+                'function' => 'projects/{project}/locations/{location}/functions/{function}',
+                'organizationUptimeCheckConfig' => 'organizations/{organization}/uptimeCheckConfigs/{uptime_check_config}',
+                'projectUptimeCheckConfig' => 'projects/{project}/uptimeCheckConfigs/{uptime_check_config}',
+                'uptimeCheckConfig' => 'projects/{project}/uptimeCheckConfigs/{uptime_check_config}',
+            ],
+        ],
+    ],
+];
diff --git a/owl-bot-staging/Monitoring/v3/src/V3/resources/uptime_check_service_rest_client_config.php b/owl-bot-staging/Monitoring/v3/src/V3/resources/uptime_check_service_rest_client_config.php
new file mode 100644
index 000000000000..4c50c3cd46b1
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/src/V3/resources/uptime_check_service_rest_client_config.php
@@ -0,0 +1,91 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+return [
+    'interfaces' => [
+        'google.monitoring.v3.UptimeCheckService' => [
+            'CreateUptimeCheckConfig' => [
+                'method' => 'post',
+                'uriTemplate' => '/v3/{parent=projects/*}/uptimeCheckConfigs',
+                'body' => 'uptime_check_config',
+                'placeholders' => [
+                    'parent' => [
+                        'getters' => [
+                            'getParent',
+                        ],
+                    ],
+                ],
+            ],
+            'DeleteUptimeCheckConfig' => [
+                'method' => 'delete',
+                'uriTemplate' => '/v3/{name=projects/*/uptimeCheckConfigs/*}',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'GetUptimeCheckConfig' => [
+                'method' => 'get',
+                'uriTemplate' => '/v3/{name=projects/*/uptimeCheckConfigs/*}',
+                'placeholders' => [
+                    'name' => [
+                        'getters' => [
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+            'ListUptimeCheckConfigs' => [
+                'method' => 'get',
+                'uriTemplate' => '/v3/{parent=projects/*}/uptimeCheckConfigs',
+                'placeholders' => [
+                    'parent' => [
+                        'getters' => [
+                            'getParent',
+                        ],
+                    ],
+                ],
+            ],
+            'ListUptimeCheckIps' => [
+                'method' => 'get',
+                'uriTemplate' => '/v3/uptimeCheckIps',
+            ],
+            'UpdateUptimeCheckConfig' => [
+                'method' => 'patch',
+                'uriTemplate' => '/v3/{uptime_check_config.name=projects/*/uptimeCheckConfigs/*}',
+                'body' => 'uptime_check_config',
+                'placeholders' => [
+                    'uptime_check_config.name' => [
+                        'getters' => [
+                            'getUptimeCheckConfig',
+                            'getName',
+                        ],
+                    ],
+                ],
+            ],
+        ],
+    ],
+    'numericEnums' => true,
+];
diff --git a/owl-bot-staging/Monitoring/v3/tests/Unit/V3/AlertPolicyServiceClientTest.php b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/AlertPolicyServiceClientTest.php
new file mode 100644
index 000000000000..9811f18bd6f3
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/AlertPolicyServiceClientTest.php
@@ -0,0 +1,380 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+namespace Google\Cloud\Monitoring\Tests\Unit\V3;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\Testing\GeneratedTest;
+use Google\ApiCore\Testing\MockTransport;
+use Google\Cloud\Monitoring\V3\AlertPolicy;
+use Google\Cloud\Monitoring\V3\AlertPolicyServiceClient;
+use Google\Cloud\Monitoring\V3\ListAlertPoliciesResponse;
+use Google\Protobuf\GPBEmpty;
+use Google\Rpc\Code;
+use stdClass;
+
+/**
+ * @group monitoring
+ *
+ * @group gapic
+ */
+class AlertPolicyServiceClientTest extends GeneratedTest
+{
+    /** @return TransportInterface */
+    private function createTransport($deserialize = null)
+    {
+        return new MockTransport($deserialize);
+    }
+
+    /** @return CredentialsWrapper */
+    private function createCredentials()
+    {
+        return $this->getMockBuilder(CredentialsWrapper::class)->disableOriginalConstructor()->getMock();
+    }
+
+    /** @return AlertPolicyServiceClient */
+    private function createClient(array $options = [])
+    {
+        $options += [
+            'credentials' => $this->createCredentials(),
+        ];
+        return new AlertPolicyServiceClient($options);
+    }
+
+    /** @test */
+    public function createAlertPolicyTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $displayName = 'displayName1615086568';
+        $expectedResponse = new AlertPolicy();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setDisplayName($displayName);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $alertPolicy = new AlertPolicy();
+        $response = $gapicClient->createAlertPolicy($name, $alertPolicy);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.AlertPolicyService/CreateAlertPolicy', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $actualValue = $actualRequestObject->getAlertPolicy();
+        $this->assertProtobufEquals($alertPolicy, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createAlertPolicyExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $name = 'name3373707';
+        $alertPolicy = new AlertPolicy();
+        try {
+            $gapicClient->createAlertPolicy($name, $alertPolicy);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteAlertPolicyTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $expectedResponse = new GPBEmpty();
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->alertPolicyName('[PROJECT]', '[ALERT_POLICY]');
+        $gapicClient->deleteAlertPolicy($formattedName);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.AlertPolicyService/DeleteAlertPolicy', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteAlertPolicyExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->alertPolicyName('[PROJECT]', '[ALERT_POLICY]');
+        try {
+            $gapicClient->deleteAlertPolicy($formattedName);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getAlertPolicyTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $displayName = 'displayName1615086568';
+        $expectedResponse = new AlertPolicy();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setDisplayName($displayName);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->alertPolicyName('[PROJECT]', '[ALERT_POLICY]');
+        $response = $gapicClient->getAlertPolicy($formattedName);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.AlertPolicyService/GetAlertPolicy', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getAlertPolicyExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->alertPolicyName('[PROJECT]', '[ALERT_POLICY]');
+        try {
+            $gapicClient->getAlertPolicy($formattedName);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listAlertPoliciesTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $totalSize = 705419236;
+        $alertPoliciesElement = new AlertPolicy();
+        $alertPolicies = [
+            $alertPoliciesElement,
+        ];
+        $expectedResponse = new ListAlertPoliciesResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setTotalSize($totalSize);
+        $expectedResponse->setAlertPolicies($alertPolicies);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $response = $gapicClient->listAlertPolicies($name);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getAlertPolicies()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.AlertPolicyService/ListAlertPolicies', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listAlertPoliciesExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $name = 'name3373707';
+        try {
+            $gapicClient->listAlertPolicies($name);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateAlertPolicyTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name = 'name3373707';
+        $displayName = 'displayName1615086568';
+        $expectedResponse = new AlertPolicy();
+        $expectedResponse->setName($name);
+        $expectedResponse->setDisplayName($displayName);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $alertPolicy = new AlertPolicy();
+        $response = $gapicClient->updateAlertPolicy($alertPolicy);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.AlertPolicyService/UpdateAlertPolicy', $actualFuncCall);
+        $actualValue = $actualRequestObject->getAlertPolicy();
+        $this->assertProtobufEquals($alertPolicy, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateAlertPolicyExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $alertPolicy = new AlertPolicy();
+        try {
+            $gapicClient->updateAlertPolicy($alertPolicy);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/tests/Unit/V3/Client/AlertPolicyServiceClientTest.php b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/Client/AlertPolicyServiceClientTest.php
new file mode 100644
index 000000000000..498d9a5be075
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/Client/AlertPolicyServiceClientTest.php
@@ -0,0 +1,442 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+namespace Google\Cloud\Monitoring\Tests\Unit\V3\Client;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\Testing\GeneratedTest;
+use Google\ApiCore\Testing\MockTransport;
+use Google\Cloud\Monitoring\V3\AlertPolicy;
+use Google\Cloud\Monitoring\V3\Client\AlertPolicyServiceClient;
+use Google\Cloud\Monitoring\V3\CreateAlertPolicyRequest;
+use Google\Cloud\Monitoring\V3\DeleteAlertPolicyRequest;
+use Google\Cloud\Monitoring\V3\GetAlertPolicyRequest;
+use Google\Cloud\Monitoring\V3\ListAlertPoliciesRequest;
+use Google\Cloud\Monitoring\V3\ListAlertPoliciesResponse;
+use Google\Cloud\Monitoring\V3\UpdateAlertPolicyRequest;
+use Google\Protobuf\GPBEmpty;
+use Google\Rpc\Code;
+use stdClass;
+
+/**
+ * @group monitoring
+ *
+ * @group gapic
+ */
+class AlertPolicyServiceClientTest extends GeneratedTest
+{
+    /** @return TransportInterface */
+    private function createTransport($deserialize = null)
+    {
+        return new MockTransport($deserialize);
+    }
+
+    /** @return CredentialsWrapper */
+    private function createCredentials()
+    {
+        return $this->getMockBuilder(CredentialsWrapper::class)->disableOriginalConstructor()->getMock();
+    }
+
+    /** @return AlertPolicyServiceClient */
+    private function createClient(array $options = [])
+    {
+        $options += [
+            'credentials' => $this->createCredentials(),
+        ];
+        return new AlertPolicyServiceClient($options);
+    }
+
+    /** @test */
+    public function createAlertPolicyTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $displayName = 'displayName1615086568';
+        $expectedResponse = new AlertPolicy();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setDisplayName($displayName);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $alertPolicy = new AlertPolicy();
+        $request = (new CreateAlertPolicyRequest())
+            ->setName($name)
+            ->setAlertPolicy($alertPolicy);
+        $response = $gapicClient->createAlertPolicy($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.AlertPolicyService/CreateAlertPolicy', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $actualValue = $actualRequestObject->getAlertPolicy();
+        $this->assertProtobufEquals($alertPolicy, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createAlertPolicyExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $name = 'name3373707';
+        $alertPolicy = new AlertPolicy();
+        $request = (new CreateAlertPolicyRequest())
+            ->setName($name)
+            ->setAlertPolicy($alertPolicy);
+        try {
+            $gapicClient->createAlertPolicy($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteAlertPolicyTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $expectedResponse = new GPBEmpty();
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->alertPolicyName('[PROJECT]', '[ALERT_POLICY]');
+        $request = (new DeleteAlertPolicyRequest())
+            ->setName($formattedName);
+        $gapicClient->deleteAlertPolicy($request);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.AlertPolicyService/DeleteAlertPolicy', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteAlertPolicyExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->alertPolicyName('[PROJECT]', '[ALERT_POLICY]');
+        $request = (new DeleteAlertPolicyRequest())
+            ->setName($formattedName);
+        try {
+            $gapicClient->deleteAlertPolicy($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getAlertPolicyTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $displayName = 'displayName1615086568';
+        $expectedResponse = new AlertPolicy();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setDisplayName($displayName);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->alertPolicyName('[PROJECT]', '[ALERT_POLICY]');
+        $request = (new GetAlertPolicyRequest())
+            ->setName($formattedName);
+        $response = $gapicClient->getAlertPolicy($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.AlertPolicyService/GetAlertPolicy', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getAlertPolicyExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->alertPolicyName('[PROJECT]', '[ALERT_POLICY]');
+        $request = (new GetAlertPolicyRequest())
+            ->setName($formattedName);
+        try {
+            $gapicClient->getAlertPolicy($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listAlertPoliciesTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $totalSize = 705419236;
+        $alertPoliciesElement = new AlertPolicy();
+        $alertPolicies = [
+            $alertPoliciesElement,
+        ];
+        $expectedResponse = new ListAlertPoliciesResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setTotalSize($totalSize);
+        $expectedResponse->setAlertPolicies($alertPolicies);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $request = (new ListAlertPoliciesRequest())
+            ->setName($name);
+        $response = $gapicClient->listAlertPolicies($request);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getAlertPolicies()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.AlertPolicyService/ListAlertPolicies', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listAlertPoliciesExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $name = 'name3373707';
+        $request = (new ListAlertPoliciesRequest())
+            ->setName($name);
+        try {
+            $gapicClient->listAlertPolicies($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateAlertPolicyTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name = 'name3373707';
+        $displayName = 'displayName1615086568';
+        $expectedResponse = new AlertPolicy();
+        $expectedResponse->setName($name);
+        $expectedResponse->setDisplayName($displayName);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $alertPolicy = new AlertPolicy();
+        $request = (new UpdateAlertPolicyRequest())
+            ->setAlertPolicy($alertPolicy);
+        $response = $gapicClient->updateAlertPolicy($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.AlertPolicyService/UpdateAlertPolicy', $actualFuncCall);
+        $actualValue = $actualRequestObject->getAlertPolicy();
+        $this->assertProtobufEquals($alertPolicy, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateAlertPolicyExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $alertPolicy = new AlertPolicy();
+        $request = (new UpdateAlertPolicyRequest())
+            ->setAlertPolicy($alertPolicy);
+        try {
+            $gapicClient->updateAlertPolicy($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createAlertPolicyAsyncTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $displayName = 'displayName1615086568';
+        $expectedResponse = new AlertPolicy();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setDisplayName($displayName);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $alertPolicy = new AlertPolicy();
+        $request = (new CreateAlertPolicyRequest())
+            ->setName($name)
+            ->setAlertPolicy($alertPolicy);
+        $response = $gapicClient->createAlertPolicyAsync($request)->wait();
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.AlertPolicyService/CreateAlertPolicy', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $actualValue = $actualRequestObject->getAlertPolicy();
+        $this->assertProtobufEquals($alertPolicy, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/tests/Unit/V3/Client/GroupServiceClientTest.php b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/Client/GroupServiceClientTest.php
new file mode 100644
index 000000000000..5e7c3024f3ac
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/Client/GroupServiceClientTest.php
@@ -0,0 +1,541 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+namespace Google\Cloud\Monitoring\Tests\Unit\V3\Client;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\Testing\GeneratedTest;
+use Google\ApiCore\Testing\MockTransport;
+use Google\Api\MonitoredResource;
+use Google\Cloud\Monitoring\V3\Client\GroupServiceClient;
+use Google\Cloud\Monitoring\V3\CreateGroupRequest;
+use Google\Cloud\Monitoring\V3\DeleteGroupRequest;
+use Google\Cloud\Monitoring\V3\GetGroupRequest;
+use Google\Cloud\Monitoring\V3\Group;
+use Google\Cloud\Monitoring\V3\ListGroupMembersRequest;
+use Google\Cloud\Monitoring\V3\ListGroupMembersResponse;
+use Google\Cloud\Monitoring\V3\ListGroupsRequest;
+use Google\Cloud\Monitoring\V3\ListGroupsResponse;
+use Google\Cloud\Monitoring\V3\UpdateGroupRequest;
+use Google\Protobuf\GPBEmpty;
+use Google\Rpc\Code;
+use stdClass;
+
+/**
+ * @group monitoring
+ *
+ * @group gapic
+ */
+class GroupServiceClientTest extends GeneratedTest
+{
+    /** @return TransportInterface */
+    private function createTransport($deserialize = null)
+    {
+        return new MockTransport($deserialize);
+    }
+
+    /** @return CredentialsWrapper */
+    private function createCredentials()
+    {
+        return $this->getMockBuilder(CredentialsWrapper::class)->disableOriginalConstructor()->getMock();
+    }
+
+    /** @return GroupServiceClient */
+    private function createClient(array $options = [])
+    {
+        $options += [
+            'credentials' => $this->createCredentials(),
+        ];
+        return new GroupServiceClient($options);
+    }
+
+    /** @test */
+    public function createGroupTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $displayName = 'displayName1615086568';
+        $parentName = 'parentName1015022848';
+        $filter = 'filter-1274492040';
+        $isCluster = false;
+        $expectedResponse = new Group();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setParentName($parentName);
+        $expectedResponse->setFilter($filter);
+        $expectedResponse->setIsCluster($isCluster);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $group = new Group();
+        $request = (new CreateGroupRequest())
+            ->setName($name)
+            ->setGroup($group);
+        $response = $gapicClient->createGroup($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.GroupService/CreateGroup', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $actualValue = $actualRequestObject->getGroup();
+        $this->assertProtobufEquals($group, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createGroupExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $name = 'name3373707';
+        $group = new Group();
+        $request = (new CreateGroupRequest())
+            ->setName($name)
+            ->setGroup($group);
+        try {
+            $gapicClient->createGroup($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteGroupTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $expectedResponse = new GPBEmpty();
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->groupName('[PROJECT]', '[GROUP]');
+        $request = (new DeleteGroupRequest())
+            ->setName($formattedName);
+        $gapicClient->deleteGroup($request);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.GroupService/DeleteGroup', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteGroupExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->groupName('[PROJECT]', '[GROUP]');
+        $request = (new DeleteGroupRequest())
+            ->setName($formattedName);
+        try {
+            $gapicClient->deleteGroup($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getGroupTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $displayName = 'displayName1615086568';
+        $parentName = 'parentName1015022848';
+        $filter = 'filter-1274492040';
+        $isCluster = false;
+        $expectedResponse = new Group();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setParentName($parentName);
+        $expectedResponse->setFilter($filter);
+        $expectedResponse->setIsCluster($isCluster);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->groupName('[PROJECT]', '[GROUP]');
+        $request = (new GetGroupRequest())
+            ->setName($formattedName);
+        $response = $gapicClient->getGroup($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.GroupService/GetGroup', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getGroupExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->groupName('[PROJECT]', '[GROUP]');
+        $request = (new GetGroupRequest())
+            ->setName($formattedName);
+        try {
+            $gapicClient->getGroup($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listGroupMembersTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $totalSize = 705419236;
+        $membersElement = new MonitoredResource();
+        $members = [
+            $membersElement,
+        ];
+        $expectedResponse = new ListGroupMembersResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setTotalSize($totalSize);
+        $expectedResponse->setMembers($members);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->groupName('[PROJECT]', '[GROUP]');
+        $request = (new ListGroupMembersRequest())
+            ->setName($formattedName);
+        $response = $gapicClient->listGroupMembers($request);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getMembers()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.GroupService/ListGroupMembers', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listGroupMembersExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->groupName('[PROJECT]', '[GROUP]');
+        $request = (new ListGroupMembersRequest())
+            ->setName($formattedName);
+        try {
+            $gapicClient->listGroupMembers($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listGroupsTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $groupElement = new Group();
+        $group = [
+            $groupElement,
+        ];
+        $expectedResponse = new ListGroupsResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setGroup($group);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $request = (new ListGroupsRequest())
+            ->setName($name);
+        $response = $gapicClient->listGroups($request);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getGroup()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.GroupService/ListGroups', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listGroupsExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $name = 'name3373707';
+        $request = (new ListGroupsRequest())
+            ->setName($name);
+        try {
+            $gapicClient->listGroups($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateGroupTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name = 'name3373707';
+        $displayName = 'displayName1615086568';
+        $parentName = 'parentName1015022848';
+        $filter = 'filter-1274492040';
+        $isCluster = false;
+        $expectedResponse = new Group();
+        $expectedResponse->setName($name);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setParentName($parentName);
+        $expectedResponse->setFilter($filter);
+        $expectedResponse->setIsCluster($isCluster);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $group = new Group();
+        $request = (new UpdateGroupRequest())
+            ->setGroup($group);
+        $response = $gapicClient->updateGroup($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.GroupService/UpdateGroup', $actualFuncCall);
+        $actualValue = $actualRequestObject->getGroup();
+        $this->assertProtobufEquals($group, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateGroupExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $group = new Group();
+        $request = (new UpdateGroupRequest())
+            ->setGroup($group);
+        try {
+            $gapicClient->updateGroup($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createGroupAsyncTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $displayName = 'displayName1615086568';
+        $parentName = 'parentName1015022848';
+        $filter = 'filter-1274492040';
+        $isCluster = false;
+        $expectedResponse = new Group();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setParentName($parentName);
+        $expectedResponse->setFilter($filter);
+        $expectedResponse->setIsCluster($isCluster);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $group = new Group();
+        $request = (new CreateGroupRequest())
+            ->setName($name)
+            ->setGroup($group);
+        $response = $gapicClient->createGroupAsync($request)->wait();
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.GroupService/CreateGroup', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $actualValue = $actualRequestObject->getGroup();
+        $this->assertProtobufEquals($group, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/tests/Unit/V3/Client/MetricServiceClientTest.php b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/Client/MetricServiceClientTest.php
new file mode 100644
index 000000000000..8a38d03c86bc
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/Client/MetricServiceClientTest.php
@@ -0,0 +1,769 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+namespace Google\Cloud\Monitoring\Tests\Unit\V3\Client;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\Testing\GeneratedTest;
+use Google\ApiCore\Testing\MockTransport;
+use Google\Api\MetricDescriptor;
+use Google\Api\MonitoredResourceDescriptor;
+use Google\Cloud\Monitoring\V3\Client\MetricServiceClient;
+use Google\Cloud\Monitoring\V3\CreateMetricDescriptorRequest;
+use Google\Cloud\Monitoring\V3\CreateTimeSeriesRequest;
+use Google\Cloud\Monitoring\V3\DeleteMetricDescriptorRequest;
+use Google\Cloud\Monitoring\V3\GetMetricDescriptorRequest;
+use Google\Cloud\Monitoring\V3\GetMonitoredResourceDescriptorRequest;
+use Google\Cloud\Monitoring\V3\ListMetricDescriptorsRequest;
+use Google\Cloud\Monitoring\V3\ListMetricDescriptorsResponse;
+use Google\Cloud\Monitoring\V3\ListMonitoredResourceDescriptorsRequest;
+use Google\Cloud\Monitoring\V3\ListMonitoredResourceDescriptorsResponse;
+use Google\Cloud\Monitoring\V3\ListTimeSeriesRequest;
+use Google\Cloud\Monitoring\V3\ListTimeSeriesRequest\TimeSeriesView;
+use Google\Cloud\Monitoring\V3\ListTimeSeriesResponse;
+use Google\Cloud\Monitoring\V3\TimeInterval;
+use Google\Cloud\Monitoring\V3\TimeSeries;
+use Google\Protobuf\GPBEmpty;
+use Google\Rpc\Code;
+use stdClass;
+
+/**
+ * @group monitoring
+ *
+ * @group gapic
+ */
+class MetricServiceClientTest extends GeneratedTest
+{
+    /** @return TransportInterface */
+    private function createTransport($deserialize = null)
+    {
+        return new MockTransport($deserialize);
+    }
+
+    /** @return CredentialsWrapper */
+    private function createCredentials()
+    {
+        return $this->getMockBuilder(CredentialsWrapper::class)->disableOriginalConstructor()->getMock();
+    }
+
+    /** @return MetricServiceClient */
+    private function createClient(array $options = [])
+    {
+        $options += [
+            'credentials' => $this->createCredentials(),
+        ];
+        return new MetricServiceClient($options);
+    }
+
+    /** @test */
+    public function createMetricDescriptorTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $type = 'type3575610';
+        $unit = 'unit3594628';
+        $description = 'description-1724546052';
+        $displayName = 'displayName1615086568';
+        $expectedResponse = new MetricDescriptor();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setType($type);
+        $expectedResponse->setUnit($unit);
+        $expectedResponse->setDescription($description);
+        $expectedResponse->setDisplayName($displayName);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $metricDescriptor = new MetricDescriptor();
+        $request = (new CreateMetricDescriptorRequest())
+            ->setName($name)
+            ->setMetricDescriptor($metricDescriptor);
+        $response = $gapicClient->createMetricDescriptor($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.MetricService/CreateMetricDescriptor', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $actualValue = $actualRequestObject->getMetricDescriptor();
+        $this->assertProtobufEquals($metricDescriptor, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createMetricDescriptorExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $name = 'name3373707';
+        $metricDescriptor = new MetricDescriptor();
+        $request = (new CreateMetricDescriptorRequest())
+            ->setName($name)
+            ->setMetricDescriptor($metricDescriptor);
+        try {
+            $gapicClient->createMetricDescriptor($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createServiceTimeSeriesTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $expectedResponse = new GPBEmpty();
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->projectName('[PROJECT]');
+        $timeSeries = [];
+        $request = (new CreateTimeSeriesRequest())
+            ->setName($formattedName)
+            ->setTimeSeries($timeSeries);
+        $gapicClient->createServiceTimeSeries($request);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.MetricService/CreateServiceTimeSeries', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $actualValue = $actualRequestObject->getTimeSeries();
+        $this->assertProtobufEquals($timeSeries, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createServiceTimeSeriesExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->projectName('[PROJECT]');
+        $timeSeries = [];
+        $request = (new CreateTimeSeriesRequest())
+            ->setName($formattedName)
+            ->setTimeSeries($timeSeries);
+        try {
+            $gapicClient->createServiceTimeSeries($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createTimeSeriesTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $expectedResponse = new GPBEmpty();
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->projectName('[PROJECT]');
+        $timeSeries = [];
+        $request = (new CreateTimeSeriesRequest())
+            ->setName($formattedName)
+            ->setTimeSeries($timeSeries);
+        $gapicClient->createTimeSeries($request);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.MetricService/CreateTimeSeries', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $actualValue = $actualRequestObject->getTimeSeries();
+        $this->assertProtobufEquals($timeSeries, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createTimeSeriesExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->projectName('[PROJECT]');
+        $timeSeries = [];
+        $request = (new CreateTimeSeriesRequest())
+            ->setName($formattedName)
+            ->setTimeSeries($timeSeries);
+        try {
+            $gapicClient->createTimeSeries($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteMetricDescriptorTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $expectedResponse = new GPBEmpty();
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->metricDescriptorName('[PROJECT]', '[METRIC_DESCRIPTOR]');
+        $request = (new DeleteMetricDescriptorRequest())
+            ->setName($formattedName);
+        $gapicClient->deleteMetricDescriptor($request);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.MetricService/DeleteMetricDescriptor', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteMetricDescriptorExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->metricDescriptorName('[PROJECT]', '[METRIC_DESCRIPTOR]');
+        $request = (new DeleteMetricDescriptorRequest())
+            ->setName($formattedName);
+        try {
+            $gapicClient->deleteMetricDescriptor($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getMetricDescriptorTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $type = 'type3575610';
+        $unit = 'unit3594628';
+        $description = 'description-1724546052';
+        $displayName = 'displayName1615086568';
+        $expectedResponse = new MetricDescriptor();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setType($type);
+        $expectedResponse->setUnit($unit);
+        $expectedResponse->setDescription($description);
+        $expectedResponse->setDisplayName($displayName);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->metricDescriptorName('[PROJECT]', '[METRIC_DESCRIPTOR]');
+        $request = (new GetMetricDescriptorRequest())
+            ->setName($formattedName);
+        $response = $gapicClient->getMetricDescriptor($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.MetricService/GetMetricDescriptor', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getMetricDescriptorExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->metricDescriptorName('[PROJECT]', '[METRIC_DESCRIPTOR]');
+        $request = (new GetMetricDescriptorRequest())
+            ->setName($formattedName);
+        try {
+            $gapicClient->getMetricDescriptor($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getMonitoredResourceDescriptorTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $type = 'type3575610';
+        $displayName = 'displayName1615086568';
+        $description = 'description-1724546052';
+        $expectedResponse = new MonitoredResourceDescriptor();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setType($type);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setDescription($description);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->monitoredResourceDescriptorName('[PROJECT]', '[MONITORED_RESOURCE_DESCRIPTOR]');
+        $request = (new GetMonitoredResourceDescriptorRequest())
+            ->setName($formattedName);
+        $response = $gapicClient->getMonitoredResourceDescriptor($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.MetricService/GetMonitoredResourceDescriptor', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getMonitoredResourceDescriptorExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->monitoredResourceDescriptorName('[PROJECT]', '[MONITORED_RESOURCE_DESCRIPTOR]');
+        $request = (new GetMonitoredResourceDescriptorRequest())
+            ->setName($formattedName);
+        try {
+            $gapicClient->getMonitoredResourceDescriptor($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listMetricDescriptorsTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $metricDescriptorsElement = new MetricDescriptor();
+        $metricDescriptors = [
+            $metricDescriptorsElement,
+        ];
+        $expectedResponse = new ListMetricDescriptorsResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setMetricDescriptors($metricDescriptors);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $request = (new ListMetricDescriptorsRequest())
+            ->setName($name);
+        $response = $gapicClient->listMetricDescriptors($request);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getMetricDescriptors()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.MetricService/ListMetricDescriptors', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listMetricDescriptorsExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $name = 'name3373707';
+        $request = (new ListMetricDescriptorsRequest())
+            ->setName($name);
+        try {
+            $gapicClient->listMetricDescriptors($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listMonitoredResourceDescriptorsTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $resourceDescriptorsElement = new MonitoredResourceDescriptor();
+        $resourceDescriptors = [
+            $resourceDescriptorsElement,
+        ];
+        $expectedResponse = new ListMonitoredResourceDescriptorsResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setResourceDescriptors($resourceDescriptors);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $request = (new ListMonitoredResourceDescriptorsRequest())
+            ->setName($name);
+        $response = $gapicClient->listMonitoredResourceDescriptors($request);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getResourceDescriptors()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.MetricService/ListMonitoredResourceDescriptors', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listMonitoredResourceDescriptorsExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $name = 'name3373707';
+        $request = (new ListMonitoredResourceDescriptorsRequest())
+            ->setName($name);
+        try {
+            $gapicClient->listMonitoredResourceDescriptors($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listTimeSeriesTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $unit = 'unit3594628';
+        $timeSeriesElement = new TimeSeries();
+        $timeSeries = [
+            $timeSeriesElement,
+        ];
+        $expectedResponse = new ListTimeSeriesResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setUnit($unit);
+        $expectedResponse->setTimeSeries($timeSeries);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->workspaceName('[PROJECT]');
+        $filter = 'filter-1274492040';
+        $interval = new TimeInterval();
+        $view = TimeSeriesView::FULL;
+        $request = (new ListTimeSeriesRequest())
+            ->setName($formattedName)
+            ->setFilter($filter)
+            ->setInterval($interval)
+            ->setView($view);
+        $response = $gapicClient->listTimeSeries($request);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getTimeSeries()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.MetricService/ListTimeSeries', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $actualValue = $actualRequestObject->getFilter();
+        $this->assertProtobufEquals($filter, $actualValue);
+        $actualValue = $actualRequestObject->getInterval();
+        $this->assertProtobufEquals($interval, $actualValue);
+        $actualValue = $actualRequestObject->getView();
+        $this->assertProtobufEquals($view, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listTimeSeriesExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->workspaceName('[PROJECT]');
+        $filter = 'filter-1274492040';
+        $interval = new TimeInterval();
+        $view = TimeSeriesView::FULL;
+        $request = (new ListTimeSeriesRequest())
+            ->setName($formattedName)
+            ->setFilter($filter)
+            ->setInterval($interval)
+            ->setView($view);
+        try {
+            $gapicClient->listTimeSeries($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createMetricDescriptorAsyncTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $type = 'type3575610';
+        $unit = 'unit3594628';
+        $description = 'description-1724546052';
+        $displayName = 'displayName1615086568';
+        $expectedResponse = new MetricDescriptor();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setType($type);
+        $expectedResponse->setUnit($unit);
+        $expectedResponse->setDescription($description);
+        $expectedResponse->setDisplayName($displayName);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $metricDescriptor = new MetricDescriptor();
+        $request = (new CreateMetricDescriptorRequest())
+            ->setName($name)
+            ->setMetricDescriptor($metricDescriptor);
+        $response = $gapicClient->createMetricDescriptorAsync($request)->wait();
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.MetricService/CreateMetricDescriptor', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $actualValue = $actualRequestObject->getMetricDescriptor();
+        $this->assertProtobufEquals($metricDescriptor, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/tests/Unit/V3/Client/NotificationChannelServiceClientTest.php b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/Client/NotificationChannelServiceClientTest.php
new file mode 100644
index 000000000000..7a0e8fd53b02
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/Client/NotificationChannelServiceClientTest.php
@@ -0,0 +1,809 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+namespace Google\Cloud\Monitoring\Tests\Unit\V3\Client;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\Testing\GeneratedTest;
+use Google\ApiCore\Testing\MockTransport;
+use Google\Cloud\Monitoring\V3\Client\NotificationChannelServiceClient;
+use Google\Cloud\Monitoring\V3\CreateNotificationChannelRequest;
+use Google\Cloud\Monitoring\V3\DeleteNotificationChannelRequest;
+use Google\Cloud\Monitoring\V3\GetNotificationChannelDescriptorRequest;
+use Google\Cloud\Monitoring\V3\GetNotificationChannelRequest;
+use Google\Cloud\Monitoring\V3\GetNotificationChannelVerificationCodeRequest;
+use Google\Cloud\Monitoring\V3\GetNotificationChannelVerificationCodeResponse;
+use Google\Cloud\Monitoring\V3\ListNotificationChannelDescriptorsRequest;
+use Google\Cloud\Monitoring\V3\ListNotificationChannelDescriptorsResponse;
+use Google\Cloud\Monitoring\V3\ListNotificationChannelsRequest;
+use Google\Cloud\Monitoring\V3\ListNotificationChannelsResponse;
+use Google\Cloud\Monitoring\V3\NotificationChannel;
+use Google\Cloud\Monitoring\V3\NotificationChannelDescriptor;
+use Google\Cloud\Monitoring\V3\SendNotificationChannelVerificationCodeRequest;
+use Google\Cloud\Monitoring\V3\UpdateNotificationChannelRequest;
+use Google\Cloud\Monitoring\V3\VerifyNotificationChannelRequest;
+use Google\Protobuf\GPBEmpty;
+use Google\Rpc\Code;
+use stdClass;
+
+/**
+ * @group monitoring
+ *
+ * @group gapic
+ */
+class NotificationChannelServiceClientTest extends GeneratedTest
+{
+    /** @return TransportInterface */
+    private function createTransport($deserialize = null)
+    {
+        return new MockTransport($deserialize);
+    }
+
+    /** @return CredentialsWrapper */
+    private function createCredentials()
+    {
+        return $this->getMockBuilder(CredentialsWrapper::class)->disableOriginalConstructor()->getMock();
+    }
+
+    /** @return NotificationChannelServiceClient */
+    private function createClient(array $options = [])
+    {
+        $options += [
+            'credentials' => $this->createCredentials(),
+        ];
+        return new NotificationChannelServiceClient($options);
+    }
+
+    /** @test */
+    public function createNotificationChannelTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $type = 'type3575610';
+        $name2 = 'name2-1052831874';
+        $displayName = 'displayName1615086568';
+        $description = 'description-1724546052';
+        $expectedResponse = new NotificationChannel();
+        $expectedResponse->setType($type);
+        $expectedResponse->setName($name2);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setDescription($description);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $notificationChannel = new NotificationChannel();
+        $request = (new CreateNotificationChannelRequest())
+            ->setName($name)
+            ->setNotificationChannel($notificationChannel);
+        $response = $gapicClient->createNotificationChannel($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.NotificationChannelService/CreateNotificationChannel', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $actualValue = $actualRequestObject->getNotificationChannel();
+        $this->assertProtobufEquals($notificationChannel, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createNotificationChannelExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $name = 'name3373707';
+        $notificationChannel = new NotificationChannel();
+        $request = (new CreateNotificationChannelRequest())
+            ->setName($name)
+            ->setNotificationChannel($notificationChannel);
+        try {
+            $gapicClient->createNotificationChannel($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteNotificationChannelTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $expectedResponse = new GPBEmpty();
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->notificationChannelName('[PROJECT]', '[NOTIFICATION_CHANNEL]');
+        $request = (new DeleteNotificationChannelRequest())
+            ->setName($formattedName);
+        $gapicClient->deleteNotificationChannel($request);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.NotificationChannelService/DeleteNotificationChannel', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteNotificationChannelExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->notificationChannelName('[PROJECT]', '[NOTIFICATION_CHANNEL]');
+        $request = (new DeleteNotificationChannelRequest())
+            ->setName($formattedName);
+        try {
+            $gapicClient->deleteNotificationChannel($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getNotificationChannelTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $type = 'type3575610';
+        $name2 = 'name2-1052831874';
+        $displayName = 'displayName1615086568';
+        $description = 'description-1724546052';
+        $expectedResponse = new NotificationChannel();
+        $expectedResponse->setType($type);
+        $expectedResponse->setName($name2);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setDescription($description);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->notificationChannelName('[PROJECT]', '[NOTIFICATION_CHANNEL]');
+        $request = (new GetNotificationChannelRequest())
+            ->setName($formattedName);
+        $response = $gapicClient->getNotificationChannel($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.NotificationChannelService/GetNotificationChannel', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getNotificationChannelExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->notificationChannelName('[PROJECT]', '[NOTIFICATION_CHANNEL]');
+        $request = (new GetNotificationChannelRequest())
+            ->setName($formattedName);
+        try {
+            $gapicClient->getNotificationChannel($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getNotificationChannelDescriptorTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $type = 'type3575610';
+        $displayName = 'displayName1615086568';
+        $description = 'description-1724546052';
+        $expectedResponse = new NotificationChannelDescriptor();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setType($type);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setDescription($description);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->notificationChannelDescriptorName('[PROJECT]', '[CHANNEL_DESCRIPTOR]');
+        $request = (new GetNotificationChannelDescriptorRequest())
+            ->setName($formattedName);
+        $response = $gapicClient->getNotificationChannelDescriptor($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.NotificationChannelService/GetNotificationChannelDescriptor', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getNotificationChannelDescriptorExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->notificationChannelDescriptorName('[PROJECT]', '[CHANNEL_DESCRIPTOR]');
+        $request = (new GetNotificationChannelDescriptorRequest())
+            ->setName($formattedName);
+        try {
+            $gapicClient->getNotificationChannelDescriptor($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getNotificationChannelVerificationCodeTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $code = 'code3059181';
+        $expectedResponse = new GetNotificationChannelVerificationCodeResponse();
+        $expectedResponse->setCode($code);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->notificationChannelName('[PROJECT]', '[NOTIFICATION_CHANNEL]');
+        $request = (new GetNotificationChannelVerificationCodeRequest())
+            ->setName($formattedName);
+        $response = $gapicClient->getNotificationChannelVerificationCode($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.NotificationChannelService/GetNotificationChannelVerificationCode', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getNotificationChannelVerificationCodeExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->notificationChannelName('[PROJECT]', '[NOTIFICATION_CHANNEL]');
+        $request = (new GetNotificationChannelVerificationCodeRequest())
+            ->setName($formattedName);
+        try {
+            $gapicClient->getNotificationChannelVerificationCode($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listNotificationChannelDescriptorsTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $channelDescriptorsElement = new NotificationChannelDescriptor();
+        $channelDescriptors = [
+            $channelDescriptorsElement,
+        ];
+        $expectedResponse = new ListNotificationChannelDescriptorsResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setChannelDescriptors($channelDescriptors);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $request = (new ListNotificationChannelDescriptorsRequest())
+            ->setName($name);
+        $response = $gapicClient->listNotificationChannelDescriptors($request);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getChannelDescriptors()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.NotificationChannelService/ListNotificationChannelDescriptors', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listNotificationChannelDescriptorsExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $name = 'name3373707';
+        $request = (new ListNotificationChannelDescriptorsRequest())
+            ->setName($name);
+        try {
+            $gapicClient->listNotificationChannelDescriptors($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listNotificationChannelsTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $totalSize = 705419236;
+        $notificationChannelsElement = new NotificationChannel();
+        $notificationChannels = [
+            $notificationChannelsElement,
+        ];
+        $expectedResponse = new ListNotificationChannelsResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setTotalSize($totalSize);
+        $expectedResponse->setNotificationChannels($notificationChannels);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $request = (new ListNotificationChannelsRequest())
+            ->setName($name);
+        $response = $gapicClient->listNotificationChannels($request);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getNotificationChannels()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.NotificationChannelService/ListNotificationChannels', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listNotificationChannelsExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $name = 'name3373707';
+        $request = (new ListNotificationChannelsRequest())
+            ->setName($name);
+        try {
+            $gapicClient->listNotificationChannels($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function sendNotificationChannelVerificationCodeTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $expectedResponse = new GPBEmpty();
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->notificationChannelName('[PROJECT]', '[NOTIFICATION_CHANNEL]');
+        $request = (new SendNotificationChannelVerificationCodeRequest())
+            ->setName($formattedName);
+        $gapicClient->sendNotificationChannelVerificationCode($request);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.NotificationChannelService/SendNotificationChannelVerificationCode', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function sendNotificationChannelVerificationCodeExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->notificationChannelName('[PROJECT]', '[NOTIFICATION_CHANNEL]');
+        $request = (new SendNotificationChannelVerificationCodeRequest())
+            ->setName($formattedName);
+        try {
+            $gapicClient->sendNotificationChannelVerificationCode($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateNotificationChannelTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $type = 'type3575610';
+        $name = 'name3373707';
+        $displayName = 'displayName1615086568';
+        $description = 'description-1724546052';
+        $expectedResponse = new NotificationChannel();
+        $expectedResponse->setType($type);
+        $expectedResponse->setName($name);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setDescription($description);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $notificationChannel = new NotificationChannel();
+        $request = (new UpdateNotificationChannelRequest())
+            ->setNotificationChannel($notificationChannel);
+        $response = $gapicClient->updateNotificationChannel($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.NotificationChannelService/UpdateNotificationChannel', $actualFuncCall);
+        $actualValue = $actualRequestObject->getNotificationChannel();
+        $this->assertProtobufEquals($notificationChannel, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateNotificationChannelExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $notificationChannel = new NotificationChannel();
+        $request = (new UpdateNotificationChannelRequest())
+            ->setNotificationChannel($notificationChannel);
+        try {
+            $gapicClient->updateNotificationChannel($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function verifyNotificationChannelTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $type = 'type3575610';
+        $name2 = 'name2-1052831874';
+        $displayName = 'displayName1615086568';
+        $description = 'description-1724546052';
+        $expectedResponse = new NotificationChannel();
+        $expectedResponse->setType($type);
+        $expectedResponse->setName($name2);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setDescription($description);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->notificationChannelName('[PROJECT]', '[NOTIFICATION_CHANNEL]');
+        $code = 'code3059181';
+        $request = (new VerifyNotificationChannelRequest())
+            ->setName($formattedName)
+            ->setCode($code);
+        $response = $gapicClient->verifyNotificationChannel($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.NotificationChannelService/VerifyNotificationChannel', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $actualValue = $actualRequestObject->getCode();
+        $this->assertProtobufEquals($code, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function verifyNotificationChannelExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->notificationChannelName('[PROJECT]', '[NOTIFICATION_CHANNEL]');
+        $code = 'code3059181';
+        $request = (new VerifyNotificationChannelRequest())
+            ->setName($formattedName)
+            ->setCode($code);
+        try {
+            $gapicClient->verifyNotificationChannel($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createNotificationChannelAsyncTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $type = 'type3575610';
+        $name2 = 'name2-1052831874';
+        $displayName = 'displayName1615086568';
+        $description = 'description-1724546052';
+        $expectedResponse = new NotificationChannel();
+        $expectedResponse->setType($type);
+        $expectedResponse->setName($name2);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setDescription($description);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $notificationChannel = new NotificationChannel();
+        $request = (new CreateNotificationChannelRequest())
+            ->setName($name)
+            ->setNotificationChannel($notificationChannel);
+        $response = $gapicClient->createNotificationChannelAsync($request)->wait();
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.NotificationChannelService/CreateNotificationChannel', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $actualValue = $actualRequestObject->getNotificationChannel();
+        $this->assertProtobufEquals($notificationChannel, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/tests/Unit/V3/Client/QueryServiceClientTest.php b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/Client/QueryServiceClientTest.php
new file mode 100644
index 000000000000..cd32140b2e9d
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/Client/QueryServiceClientTest.php
@@ -0,0 +1,182 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+namespace Google\Cloud\Monitoring\Tests\Unit\V3\Client;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\Testing\GeneratedTest;
+use Google\ApiCore\Testing\MockTransport;
+use Google\Cloud\Monitoring\V3\Client\QueryServiceClient;
+use Google\Cloud\Monitoring\V3\QueryTimeSeriesRequest;
+use Google\Cloud\Monitoring\V3\QueryTimeSeriesResponse;
+use Google\Cloud\Monitoring\V3\TimeSeriesData;
+use Google\Rpc\Code;
+use stdClass;
+
+/**
+ * @group monitoring
+ *
+ * @group gapic
+ */
+class QueryServiceClientTest extends GeneratedTest
+{
+    /** @return TransportInterface */
+    private function createTransport($deserialize = null)
+    {
+        return new MockTransport($deserialize);
+    }
+
+    /** @return CredentialsWrapper */
+    private function createCredentials()
+    {
+        return $this->getMockBuilder(CredentialsWrapper::class)->disableOriginalConstructor()->getMock();
+    }
+
+    /** @return QueryServiceClient */
+    private function createClient(array $options = [])
+    {
+        $options += [
+            'credentials' => $this->createCredentials(),
+        ];
+        return new QueryServiceClient($options);
+    }
+
+    /** @test */
+    public function queryTimeSeriesTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $timeSeriesDataElement = new TimeSeriesData();
+        $timeSeriesData = [
+            $timeSeriesDataElement,
+        ];
+        $expectedResponse = new QueryTimeSeriesResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setTimeSeriesData($timeSeriesData);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $query = 'query107944136';
+        $request = (new QueryTimeSeriesRequest())
+            ->setName($name)
+            ->setQuery($query);
+        $response = $gapicClient->queryTimeSeries($request);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getTimeSeriesData()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.QueryService/QueryTimeSeries', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $actualValue = $actualRequestObject->getQuery();
+        $this->assertProtobufEquals($query, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function queryTimeSeriesExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $name = 'name3373707';
+        $query = 'query107944136';
+        $request = (new QueryTimeSeriesRequest())
+            ->setName($name)
+            ->setQuery($query);
+        try {
+            $gapicClient->queryTimeSeries($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function queryTimeSeriesAsyncTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $timeSeriesDataElement = new TimeSeriesData();
+        $timeSeriesData = [
+            $timeSeriesDataElement,
+        ];
+        $expectedResponse = new QueryTimeSeriesResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setTimeSeriesData($timeSeriesData);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $query = 'query107944136';
+        $request = (new QueryTimeSeriesRequest())
+            ->setName($name)
+            ->setQuery($query);
+        $response = $gapicClient->queryTimeSeriesAsync($request)->wait();
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getTimeSeriesData()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.QueryService/QueryTimeSeries', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $actualValue = $actualRequestObject->getQuery();
+        $this->assertProtobufEquals($query, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/tests/Unit/V3/Client/ServiceMonitoringServiceClientTest.php b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/Client/ServiceMonitoringServiceClientTest.php
new file mode 100644
index 000000000000..d679066683c4
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/Client/ServiceMonitoringServiceClientTest.php
@@ -0,0 +1,790 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+namespace Google\Cloud\Monitoring\Tests\Unit\V3\Client;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\Testing\GeneratedTest;
+use Google\ApiCore\Testing\MockTransport;
+use Google\Cloud\Monitoring\V3\Client\ServiceMonitoringServiceClient;
+use Google\Cloud\Monitoring\V3\CreateServiceLevelObjectiveRequest;
+use Google\Cloud\Monitoring\V3\CreateServiceRequest;
+use Google\Cloud\Monitoring\V3\DeleteServiceLevelObjectiveRequest;
+use Google\Cloud\Monitoring\V3\DeleteServiceRequest;
+use Google\Cloud\Monitoring\V3\GetServiceLevelObjectiveRequest;
+use Google\Cloud\Monitoring\V3\GetServiceRequest;
+use Google\Cloud\Monitoring\V3\ListServiceLevelObjectivesRequest;
+use Google\Cloud\Monitoring\V3\ListServiceLevelObjectivesResponse;
+use Google\Cloud\Monitoring\V3\ListServicesRequest;
+use Google\Cloud\Monitoring\V3\ListServicesResponse;
+use Google\Cloud\Monitoring\V3\Service;
+use Google\Cloud\Monitoring\V3\ServiceLevelObjective;
+use Google\Cloud\Monitoring\V3\UpdateServiceLevelObjectiveRequest;
+use Google\Cloud\Monitoring\V3\UpdateServiceRequest;
+use Google\Protobuf\GPBEmpty;
+use Google\Rpc\Code;
+use stdClass;
+
+/**
+ * @group monitoring
+ *
+ * @group gapic
+ */
+class ServiceMonitoringServiceClientTest extends GeneratedTest
+{
+    /** @return TransportInterface */
+    private function createTransport($deserialize = null)
+    {
+        return new MockTransport($deserialize);
+    }
+
+    /** @return CredentialsWrapper */
+    private function createCredentials()
+    {
+        return $this->getMockBuilder(CredentialsWrapper::class)->disableOriginalConstructor()->getMock();
+    }
+
+    /** @return ServiceMonitoringServiceClient */
+    private function createClient(array $options = [])
+    {
+        $options += [
+            'credentials' => $this->createCredentials(),
+        ];
+        return new ServiceMonitoringServiceClient($options);
+    }
+
+    /** @test */
+    public function createServiceTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name = 'name3373707';
+        $displayName = 'displayName1615086568';
+        $expectedResponse = new Service();
+        $expectedResponse->setName($name);
+        $expectedResponse->setDisplayName($displayName);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $parent = 'parent-995424086';
+        $service = new Service();
+        $request = (new CreateServiceRequest())
+            ->setParent($parent)
+            ->setService($service);
+        $response = $gapicClient->createService($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.ServiceMonitoringService/CreateService', $actualFuncCall);
+        $actualValue = $actualRequestObject->getParent();
+        $this->assertProtobufEquals($parent, $actualValue);
+        $actualValue = $actualRequestObject->getService();
+        $this->assertProtobufEquals($service, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createServiceExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $parent = 'parent-995424086';
+        $service = new Service();
+        $request = (new CreateServiceRequest())
+            ->setParent($parent)
+            ->setService($service);
+        try {
+            $gapicClient->createService($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createServiceLevelObjectiveTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name = 'name3373707';
+        $displayName = 'displayName1615086568';
+        $goal = 317825.0;
+        $expectedResponse = new ServiceLevelObjective();
+        $expectedResponse->setName($name);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setGoal($goal);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedParent = $gapicClient->serviceName('[PROJECT]', '[SERVICE]');
+        $serviceLevelObjective = new ServiceLevelObjective();
+        $request = (new CreateServiceLevelObjectiveRequest())
+            ->setParent($formattedParent)
+            ->setServiceLevelObjective($serviceLevelObjective);
+        $response = $gapicClient->createServiceLevelObjective($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.ServiceMonitoringService/CreateServiceLevelObjective', $actualFuncCall);
+        $actualValue = $actualRequestObject->getParent();
+        $this->assertProtobufEquals($formattedParent, $actualValue);
+        $actualValue = $actualRequestObject->getServiceLevelObjective();
+        $this->assertProtobufEquals($serviceLevelObjective, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createServiceLevelObjectiveExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedParent = $gapicClient->serviceName('[PROJECT]', '[SERVICE]');
+        $serviceLevelObjective = new ServiceLevelObjective();
+        $request = (new CreateServiceLevelObjectiveRequest())
+            ->setParent($formattedParent)
+            ->setServiceLevelObjective($serviceLevelObjective);
+        try {
+            $gapicClient->createServiceLevelObjective($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteServiceTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $expectedResponse = new GPBEmpty();
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->serviceName('[PROJECT]', '[SERVICE]');
+        $request = (new DeleteServiceRequest())
+            ->setName($formattedName);
+        $gapicClient->deleteService($request);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.ServiceMonitoringService/DeleteService', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteServiceExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->serviceName('[PROJECT]', '[SERVICE]');
+        $request = (new DeleteServiceRequest())
+            ->setName($formattedName);
+        try {
+            $gapicClient->deleteService($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteServiceLevelObjectiveTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $expectedResponse = new GPBEmpty();
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->serviceLevelObjectiveName('[PROJECT]', '[SERVICE]', '[SERVICE_LEVEL_OBJECTIVE]');
+        $request = (new DeleteServiceLevelObjectiveRequest())
+            ->setName($formattedName);
+        $gapicClient->deleteServiceLevelObjective($request);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.ServiceMonitoringService/DeleteServiceLevelObjective', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteServiceLevelObjectiveExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->serviceLevelObjectiveName('[PROJECT]', '[SERVICE]', '[SERVICE_LEVEL_OBJECTIVE]');
+        $request = (new DeleteServiceLevelObjectiveRequest())
+            ->setName($formattedName);
+        try {
+            $gapicClient->deleteServiceLevelObjective($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getServiceTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $displayName = 'displayName1615086568';
+        $expectedResponse = new Service();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setDisplayName($displayName);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->serviceName('[PROJECT]', '[SERVICE]');
+        $request = (new GetServiceRequest())
+            ->setName($formattedName);
+        $response = $gapicClient->getService($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.ServiceMonitoringService/GetService', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getServiceExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->serviceName('[PROJECT]', '[SERVICE]');
+        $request = (new GetServiceRequest())
+            ->setName($formattedName);
+        try {
+            $gapicClient->getService($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getServiceLevelObjectiveTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $displayName = 'displayName1615086568';
+        $goal = 317825.0;
+        $expectedResponse = new ServiceLevelObjective();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setGoal($goal);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->serviceLevelObjectiveName('[PROJECT]', '[SERVICE]', '[SERVICE_LEVEL_OBJECTIVE]');
+        $request = (new GetServiceLevelObjectiveRequest())
+            ->setName($formattedName);
+        $response = $gapicClient->getServiceLevelObjective($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.ServiceMonitoringService/GetServiceLevelObjective', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getServiceLevelObjectiveExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->serviceLevelObjectiveName('[PROJECT]', '[SERVICE]', '[SERVICE_LEVEL_OBJECTIVE]');
+        $request = (new GetServiceLevelObjectiveRequest())
+            ->setName($formattedName);
+        try {
+            $gapicClient->getServiceLevelObjective($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listServiceLevelObjectivesTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $serviceLevelObjectivesElement = new ServiceLevelObjective();
+        $serviceLevelObjectives = [
+            $serviceLevelObjectivesElement,
+        ];
+        $expectedResponse = new ListServiceLevelObjectivesResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setServiceLevelObjectives($serviceLevelObjectives);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedParent = $gapicClient->serviceName('[PROJECT]', '[SERVICE]');
+        $request = (new ListServiceLevelObjectivesRequest())
+            ->setParent($formattedParent);
+        $response = $gapicClient->listServiceLevelObjectives($request);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getServiceLevelObjectives()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.ServiceMonitoringService/ListServiceLevelObjectives', $actualFuncCall);
+        $actualValue = $actualRequestObject->getParent();
+        $this->assertProtobufEquals($formattedParent, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listServiceLevelObjectivesExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedParent = $gapicClient->serviceName('[PROJECT]', '[SERVICE]');
+        $request = (new ListServiceLevelObjectivesRequest())
+            ->setParent($formattedParent);
+        try {
+            $gapicClient->listServiceLevelObjectives($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listServicesTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $servicesElement = new Service();
+        $services = [
+            $servicesElement,
+        ];
+        $expectedResponse = new ListServicesResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setServices($services);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $parent = 'parent-995424086';
+        $request = (new ListServicesRequest())
+            ->setParent($parent);
+        $response = $gapicClient->listServices($request);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getServices()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.ServiceMonitoringService/ListServices', $actualFuncCall);
+        $actualValue = $actualRequestObject->getParent();
+        $this->assertProtobufEquals($parent, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listServicesExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $parent = 'parent-995424086';
+        $request = (new ListServicesRequest())
+            ->setParent($parent);
+        try {
+            $gapicClient->listServices($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateServiceTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name = 'name3373707';
+        $displayName = 'displayName1615086568';
+        $expectedResponse = new Service();
+        $expectedResponse->setName($name);
+        $expectedResponse->setDisplayName($displayName);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $service = new Service();
+        $request = (new UpdateServiceRequest())
+            ->setService($service);
+        $response = $gapicClient->updateService($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.ServiceMonitoringService/UpdateService', $actualFuncCall);
+        $actualValue = $actualRequestObject->getService();
+        $this->assertProtobufEquals($service, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateServiceExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $service = new Service();
+        $request = (new UpdateServiceRequest())
+            ->setService($service);
+        try {
+            $gapicClient->updateService($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateServiceLevelObjectiveTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name = 'name3373707';
+        $displayName = 'displayName1615086568';
+        $goal = 317825.0;
+        $expectedResponse = new ServiceLevelObjective();
+        $expectedResponse->setName($name);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setGoal($goal);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $serviceLevelObjective = new ServiceLevelObjective();
+        $request = (new UpdateServiceLevelObjectiveRequest())
+            ->setServiceLevelObjective($serviceLevelObjective);
+        $response = $gapicClient->updateServiceLevelObjective($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.ServiceMonitoringService/UpdateServiceLevelObjective', $actualFuncCall);
+        $actualValue = $actualRequestObject->getServiceLevelObjective();
+        $this->assertProtobufEquals($serviceLevelObjective, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateServiceLevelObjectiveExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $serviceLevelObjective = new ServiceLevelObjective();
+        $request = (new UpdateServiceLevelObjectiveRequest())
+            ->setServiceLevelObjective($serviceLevelObjective);
+        try {
+            $gapicClient->updateServiceLevelObjective($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createServiceAsyncTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name = 'name3373707';
+        $displayName = 'displayName1615086568';
+        $expectedResponse = new Service();
+        $expectedResponse->setName($name);
+        $expectedResponse->setDisplayName($displayName);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $parent = 'parent-995424086';
+        $service = new Service();
+        $request = (new CreateServiceRequest())
+            ->setParent($parent)
+            ->setService($service);
+        $response = $gapicClient->createServiceAsync($request)->wait();
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.ServiceMonitoringService/CreateService', $actualFuncCall);
+        $actualValue = $actualRequestObject->getParent();
+        $this->assertProtobufEquals($parent, $actualValue);
+        $actualValue = $actualRequestObject->getService();
+        $this->assertProtobufEquals($service, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/tests/Unit/V3/Client/SnoozeServiceClientTest.php b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/Client/SnoozeServiceClientTest.php
new file mode 100644
index 000000000000..f46286b29e35
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/Client/SnoozeServiceClientTest.php
@@ -0,0 +1,416 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+namespace Google\Cloud\Monitoring\Tests\Unit\V3\Client;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\Testing\GeneratedTest;
+use Google\ApiCore\Testing\MockTransport;
+use Google\Cloud\Monitoring\V3\Client\SnoozeServiceClient;
+use Google\Cloud\Monitoring\V3\CreateSnoozeRequest;
+use Google\Cloud\Monitoring\V3\GetSnoozeRequest;
+use Google\Cloud\Monitoring\V3\ListSnoozesRequest;
+use Google\Cloud\Monitoring\V3\ListSnoozesResponse;
+use Google\Cloud\Monitoring\V3\Snooze;
+use Google\Cloud\Monitoring\V3\Snooze\Criteria;
+use Google\Cloud\Monitoring\V3\TimeInterval;
+use Google\Cloud\Monitoring\V3\UpdateSnoozeRequest;
+use Google\Protobuf\FieldMask;
+use Google\Rpc\Code;
+use stdClass;
+
+/**
+ * @group monitoring
+ *
+ * @group gapic
+ */
+class SnoozeServiceClientTest extends GeneratedTest
+{
+    /** @return TransportInterface */
+    private function createTransport($deserialize = null)
+    {
+        return new MockTransport($deserialize);
+    }
+
+    /** @return CredentialsWrapper */
+    private function createCredentials()
+    {
+        return $this->getMockBuilder(CredentialsWrapper::class)->disableOriginalConstructor()->getMock();
+    }
+
+    /** @return SnoozeServiceClient */
+    private function createClient(array $options = [])
+    {
+        $options += [
+            'credentials' => $this->createCredentials(),
+        ];
+        return new SnoozeServiceClient($options);
+    }
+
+    /** @test */
+    public function createSnoozeTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name = 'name3373707';
+        $displayName = 'displayName1615086568';
+        $expectedResponse = new Snooze();
+        $expectedResponse->setName($name);
+        $expectedResponse->setDisplayName($displayName);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedParent = $gapicClient->workspaceName('[PROJECT]');
+        $snooze = new Snooze();
+        $snoozeCriteria = new Criteria();
+        $snooze->setCriteria($snoozeCriteria);
+        $snoozeInterval = new TimeInterval();
+        $snooze->setInterval($snoozeInterval);
+        $snoozeDisplayName = 'snoozeDisplayName-1956223833';
+        $snooze->setDisplayName($snoozeDisplayName);
+        $request = (new CreateSnoozeRequest())
+            ->setParent($formattedParent)
+            ->setSnooze($snooze);
+        $response = $gapicClient->createSnooze($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.SnoozeService/CreateSnooze', $actualFuncCall);
+        $actualValue = $actualRequestObject->getParent();
+        $this->assertProtobufEquals($formattedParent, $actualValue);
+        $actualValue = $actualRequestObject->getSnooze();
+        $this->assertProtobufEquals($snooze, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createSnoozeExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedParent = $gapicClient->workspaceName('[PROJECT]');
+        $snooze = new Snooze();
+        $snoozeCriteria = new Criteria();
+        $snooze->setCriteria($snoozeCriteria);
+        $snoozeInterval = new TimeInterval();
+        $snooze->setInterval($snoozeInterval);
+        $snoozeDisplayName = 'snoozeDisplayName-1956223833';
+        $snooze->setDisplayName($snoozeDisplayName);
+        $request = (new CreateSnoozeRequest())
+            ->setParent($formattedParent)
+            ->setSnooze($snooze);
+        try {
+            $gapicClient->createSnooze($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getSnoozeTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $displayName = 'displayName1615086568';
+        $expectedResponse = new Snooze();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setDisplayName($displayName);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->snoozeName('[PROJECT]', '[SNOOZE]');
+        $request = (new GetSnoozeRequest())
+            ->setName($formattedName);
+        $response = $gapicClient->getSnooze($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.SnoozeService/GetSnooze', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getSnoozeExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->snoozeName('[PROJECT]', '[SNOOZE]');
+        $request = (new GetSnoozeRequest())
+            ->setName($formattedName);
+        try {
+            $gapicClient->getSnooze($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listSnoozesTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $snoozesElement = new Snooze();
+        $snoozes = [
+            $snoozesElement,
+        ];
+        $expectedResponse = new ListSnoozesResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setSnoozes($snoozes);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedParent = $gapicClient->workspaceName('[PROJECT]');
+        $request = (new ListSnoozesRequest())
+            ->setParent($formattedParent);
+        $response = $gapicClient->listSnoozes($request);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getSnoozes()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.SnoozeService/ListSnoozes', $actualFuncCall);
+        $actualValue = $actualRequestObject->getParent();
+        $this->assertProtobufEquals($formattedParent, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listSnoozesExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedParent = $gapicClient->workspaceName('[PROJECT]');
+        $request = (new ListSnoozesRequest())
+            ->setParent($formattedParent);
+        try {
+            $gapicClient->listSnoozes($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateSnoozeTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name = 'name3373707';
+        $displayName = 'displayName1615086568';
+        $expectedResponse = new Snooze();
+        $expectedResponse->setName($name);
+        $expectedResponse->setDisplayName($displayName);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $snooze = new Snooze();
+        $snoozeCriteria = new Criteria();
+        $snooze->setCriteria($snoozeCriteria);
+        $snoozeInterval = new TimeInterval();
+        $snooze->setInterval($snoozeInterval);
+        $snoozeDisplayName = 'snoozeDisplayName-1956223833';
+        $snooze->setDisplayName($snoozeDisplayName);
+        $updateMask = new FieldMask();
+        $request = (new UpdateSnoozeRequest())
+            ->setSnooze($snooze)
+            ->setUpdateMask($updateMask);
+        $response = $gapicClient->updateSnooze($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.SnoozeService/UpdateSnooze', $actualFuncCall);
+        $actualValue = $actualRequestObject->getSnooze();
+        $this->assertProtobufEquals($snooze, $actualValue);
+        $actualValue = $actualRequestObject->getUpdateMask();
+        $this->assertProtobufEquals($updateMask, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateSnoozeExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $snooze = new Snooze();
+        $snoozeCriteria = new Criteria();
+        $snooze->setCriteria($snoozeCriteria);
+        $snoozeInterval = new TimeInterval();
+        $snooze->setInterval($snoozeInterval);
+        $snoozeDisplayName = 'snoozeDisplayName-1956223833';
+        $snooze->setDisplayName($snoozeDisplayName);
+        $updateMask = new FieldMask();
+        $request = (new UpdateSnoozeRequest())
+            ->setSnooze($snooze)
+            ->setUpdateMask($updateMask);
+        try {
+            $gapicClient->updateSnooze($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createSnoozeAsyncTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name = 'name3373707';
+        $displayName = 'displayName1615086568';
+        $expectedResponse = new Snooze();
+        $expectedResponse->setName($name);
+        $expectedResponse->setDisplayName($displayName);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedParent = $gapicClient->workspaceName('[PROJECT]');
+        $snooze = new Snooze();
+        $snoozeCriteria = new Criteria();
+        $snooze->setCriteria($snoozeCriteria);
+        $snoozeInterval = new TimeInterval();
+        $snooze->setInterval($snoozeInterval);
+        $snoozeDisplayName = 'snoozeDisplayName-1956223833';
+        $snooze->setDisplayName($snoozeDisplayName);
+        $request = (new CreateSnoozeRequest())
+            ->setParent($formattedParent)
+            ->setSnooze($snooze);
+        $response = $gapicClient->createSnoozeAsync($request)->wait();
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.SnoozeService/CreateSnooze', $actualFuncCall);
+        $actualValue = $actualRequestObject->getParent();
+        $this->assertProtobufEquals($formattedParent, $actualValue);
+        $actualValue = $actualRequestObject->getSnooze();
+        $this->assertProtobufEquals($snooze, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/tests/Unit/V3/Client/UptimeCheckServiceClientTest.php b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/Client/UptimeCheckServiceClientTest.php
new file mode 100644
index 000000000000..8b1fc5ae6539
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/Client/UptimeCheckServiceClientTest.php
@@ -0,0 +1,517 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+namespace Google\Cloud\Monitoring\Tests\Unit\V3\Client;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\Testing\GeneratedTest;
+use Google\ApiCore\Testing\MockTransport;
+use Google\Cloud\Monitoring\V3\Client\UptimeCheckServiceClient;
+use Google\Cloud\Monitoring\V3\CreateUptimeCheckConfigRequest;
+use Google\Cloud\Monitoring\V3\DeleteUptimeCheckConfigRequest;
+use Google\Cloud\Monitoring\V3\GetUptimeCheckConfigRequest;
+use Google\Cloud\Monitoring\V3\ListUptimeCheckConfigsRequest;
+use Google\Cloud\Monitoring\V3\ListUptimeCheckConfigsResponse;
+use Google\Cloud\Monitoring\V3\ListUptimeCheckIpsRequest;
+use Google\Cloud\Monitoring\V3\ListUptimeCheckIpsResponse;
+use Google\Cloud\Monitoring\V3\UpdateUptimeCheckConfigRequest;
+use Google\Cloud\Monitoring\V3\UptimeCheckConfig;
+use Google\Cloud\Monitoring\V3\UptimeCheckIp;
+use Google\Protobuf\GPBEmpty;
+use Google\Rpc\Code;
+use stdClass;
+
+/**
+ * @group monitoring
+ *
+ * @group gapic
+ */
+class UptimeCheckServiceClientTest extends GeneratedTest
+{
+    /** @return TransportInterface */
+    private function createTransport($deserialize = null)
+    {
+        return new MockTransport($deserialize);
+    }
+
+    /** @return CredentialsWrapper */
+    private function createCredentials()
+    {
+        return $this->getMockBuilder(CredentialsWrapper::class)->disableOriginalConstructor()->getMock();
+    }
+
+    /** @return UptimeCheckServiceClient */
+    private function createClient(array $options = [])
+    {
+        $options += [
+            'credentials' => $this->createCredentials(),
+        ];
+        return new UptimeCheckServiceClient($options);
+    }
+
+    /** @test */
+    public function createUptimeCheckConfigTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name = 'name3373707';
+        $displayName = 'displayName1615086568';
+        $isInternal = true;
+        $expectedResponse = new UptimeCheckConfig();
+        $expectedResponse->setName($name);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setIsInternal($isInternal);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $parent = 'parent-995424086';
+        $uptimeCheckConfig = new UptimeCheckConfig();
+        $request = (new CreateUptimeCheckConfigRequest())
+            ->setParent($parent)
+            ->setUptimeCheckConfig($uptimeCheckConfig);
+        $response = $gapicClient->createUptimeCheckConfig($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.UptimeCheckService/CreateUptimeCheckConfig', $actualFuncCall);
+        $actualValue = $actualRequestObject->getParent();
+        $this->assertProtobufEquals($parent, $actualValue);
+        $actualValue = $actualRequestObject->getUptimeCheckConfig();
+        $this->assertProtobufEquals($uptimeCheckConfig, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createUptimeCheckConfigExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $parent = 'parent-995424086';
+        $uptimeCheckConfig = new UptimeCheckConfig();
+        $request = (new CreateUptimeCheckConfigRequest())
+            ->setParent($parent)
+            ->setUptimeCheckConfig($uptimeCheckConfig);
+        try {
+            $gapicClient->createUptimeCheckConfig($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteUptimeCheckConfigTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $expectedResponse = new GPBEmpty();
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->uptimeCheckConfigName('[PROJECT]', '[UPTIME_CHECK_CONFIG]');
+        $request = (new DeleteUptimeCheckConfigRequest())
+            ->setName($formattedName);
+        $gapicClient->deleteUptimeCheckConfig($request);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.UptimeCheckService/DeleteUptimeCheckConfig', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteUptimeCheckConfigExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->uptimeCheckConfigName('[PROJECT]', '[UPTIME_CHECK_CONFIG]');
+        $request = (new DeleteUptimeCheckConfigRequest())
+            ->setName($formattedName);
+        try {
+            $gapicClient->deleteUptimeCheckConfig($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getUptimeCheckConfigTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $displayName = 'displayName1615086568';
+        $isInternal = true;
+        $expectedResponse = new UptimeCheckConfig();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setIsInternal($isInternal);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->uptimeCheckConfigName('[PROJECT]', '[UPTIME_CHECK_CONFIG]');
+        $request = (new GetUptimeCheckConfigRequest())
+            ->setName($formattedName);
+        $response = $gapicClient->getUptimeCheckConfig($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.UptimeCheckService/GetUptimeCheckConfig', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getUptimeCheckConfigExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->uptimeCheckConfigName('[PROJECT]', '[UPTIME_CHECK_CONFIG]');
+        $request = (new GetUptimeCheckConfigRequest())
+            ->setName($formattedName);
+        try {
+            $gapicClient->getUptimeCheckConfig($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listUptimeCheckConfigsTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $totalSize = 705419236;
+        $uptimeCheckConfigsElement = new UptimeCheckConfig();
+        $uptimeCheckConfigs = [
+            $uptimeCheckConfigsElement,
+        ];
+        $expectedResponse = new ListUptimeCheckConfigsResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setTotalSize($totalSize);
+        $expectedResponse->setUptimeCheckConfigs($uptimeCheckConfigs);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $parent = 'parent-995424086';
+        $request = (new ListUptimeCheckConfigsRequest())
+            ->setParent($parent);
+        $response = $gapicClient->listUptimeCheckConfigs($request);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getUptimeCheckConfigs()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.UptimeCheckService/ListUptimeCheckConfigs', $actualFuncCall);
+        $actualValue = $actualRequestObject->getParent();
+        $this->assertProtobufEquals($parent, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listUptimeCheckConfigsExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $parent = 'parent-995424086';
+        $request = (new ListUptimeCheckConfigsRequest())
+            ->setParent($parent);
+        try {
+            $gapicClient->listUptimeCheckConfigs($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listUptimeCheckIpsTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $uptimeCheckIpsElement = new UptimeCheckIp();
+        $uptimeCheckIps = [
+            $uptimeCheckIpsElement,
+        ];
+        $expectedResponse = new ListUptimeCheckIpsResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setUptimeCheckIps($uptimeCheckIps);
+        $transport->addResponse($expectedResponse);
+        $request = new ListUptimeCheckIpsRequest();
+        $response = $gapicClient->listUptimeCheckIps($request);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getUptimeCheckIps()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.UptimeCheckService/ListUptimeCheckIps', $actualFuncCall);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listUptimeCheckIpsExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        $request = new ListUptimeCheckIpsRequest();
+        try {
+            $gapicClient->listUptimeCheckIps($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateUptimeCheckConfigTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name = 'name3373707';
+        $displayName = 'displayName1615086568';
+        $isInternal = true;
+        $expectedResponse = new UptimeCheckConfig();
+        $expectedResponse->setName($name);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setIsInternal($isInternal);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $uptimeCheckConfig = new UptimeCheckConfig();
+        $request = (new UpdateUptimeCheckConfigRequest())
+            ->setUptimeCheckConfig($uptimeCheckConfig);
+        $response = $gapicClient->updateUptimeCheckConfig($request);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.UptimeCheckService/UpdateUptimeCheckConfig', $actualFuncCall);
+        $actualValue = $actualRequestObject->getUptimeCheckConfig();
+        $this->assertProtobufEquals($uptimeCheckConfig, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateUptimeCheckConfigExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $uptimeCheckConfig = new UptimeCheckConfig();
+        $request = (new UpdateUptimeCheckConfigRequest())
+            ->setUptimeCheckConfig($uptimeCheckConfig);
+        try {
+            $gapicClient->updateUptimeCheckConfig($request);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createUptimeCheckConfigAsyncTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name = 'name3373707';
+        $displayName = 'displayName1615086568';
+        $isInternal = true;
+        $expectedResponse = new UptimeCheckConfig();
+        $expectedResponse->setName($name);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setIsInternal($isInternal);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $parent = 'parent-995424086';
+        $uptimeCheckConfig = new UptimeCheckConfig();
+        $request = (new CreateUptimeCheckConfigRequest())
+            ->setParent($parent)
+            ->setUptimeCheckConfig($uptimeCheckConfig);
+        $response = $gapicClient->createUptimeCheckConfigAsync($request)->wait();
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.UptimeCheckService/CreateUptimeCheckConfig', $actualFuncCall);
+        $actualValue = $actualRequestObject->getParent();
+        $this->assertProtobufEquals($parent, $actualValue);
+        $actualValue = $actualRequestObject->getUptimeCheckConfig();
+        $this->assertProtobufEquals($uptimeCheckConfig, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/tests/Unit/V3/GroupServiceClientTest.php b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/GroupServiceClientTest.php
new file mode 100644
index 000000000000..6ac70404aed4
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/GroupServiceClientTest.php
@@ -0,0 +1,468 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+namespace Google\Cloud\Monitoring\Tests\Unit\V3;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\Testing\GeneratedTest;
+use Google\ApiCore\Testing\MockTransport;
+use Google\Api\MonitoredResource;
+use Google\Cloud\Monitoring\V3\Group;
+use Google\Cloud\Monitoring\V3\GroupServiceClient;
+use Google\Cloud\Monitoring\V3\ListGroupMembersResponse;
+use Google\Cloud\Monitoring\V3\ListGroupsResponse;
+use Google\Protobuf\GPBEmpty;
+use Google\Rpc\Code;
+use stdClass;
+
+/**
+ * @group monitoring
+ *
+ * @group gapic
+ */
+class GroupServiceClientTest extends GeneratedTest
+{
+    /** @return TransportInterface */
+    private function createTransport($deserialize = null)
+    {
+        return new MockTransport($deserialize);
+    }
+
+    /** @return CredentialsWrapper */
+    private function createCredentials()
+    {
+        return $this->getMockBuilder(CredentialsWrapper::class)->disableOriginalConstructor()->getMock();
+    }
+
+    /** @return GroupServiceClient */
+    private function createClient(array $options = [])
+    {
+        $options += [
+            'credentials' => $this->createCredentials(),
+        ];
+        return new GroupServiceClient($options);
+    }
+
+    /** @test */
+    public function createGroupTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $displayName = 'displayName1615086568';
+        $parentName = 'parentName1015022848';
+        $filter = 'filter-1274492040';
+        $isCluster = false;
+        $expectedResponse = new Group();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setParentName($parentName);
+        $expectedResponse->setFilter($filter);
+        $expectedResponse->setIsCluster($isCluster);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $group = new Group();
+        $response = $gapicClient->createGroup($name, $group);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.GroupService/CreateGroup', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $actualValue = $actualRequestObject->getGroup();
+        $this->assertProtobufEquals($group, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createGroupExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $name = 'name3373707';
+        $group = new Group();
+        try {
+            $gapicClient->createGroup($name, $group);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteGroupTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $expectedResponse = new GPBEmpty();
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->groupName('[PROJECT]', '[GROUP]');
+        $gapicClient->deleteGroup($formattedName);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.GroupService/DeleteGroup', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteGroupExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->groupName('[PROJECT]', '[GROUP]');
+        try {
+            $gapicClient->deleteGroup($formattedName);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getGroupTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $displayName = 'displayName1615086568';
+        $parentName = 'parentName1015022848';
+        $filter = 'filter-1274492040';
+        $isCluster = false;
+        $expectedResponse = new Group();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setParentName($parentName);
+        $expectedResponse->setFilter($filter);
+        $expectedResponse->setIsCluster($isCluster);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->groupName('[PROJECT]', '[GROUP]');
+        $response = $gapicClient->getGroup($formattedName);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.GroupService/GetGroup', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getGroupExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->groupName('[PROJECT]', '[GROUP]');
+        try {
+            $gapicClient->getGroup($formattedName);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listGroupMembersTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $totalSize = 705419236;
+        $membersElement = new MonitoredResource();
+        $members = [
+            $membersElement,
+        ];
+        $expectedResponse = new ListGroupMembersResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setTotalSize($totalSize);
+        $expectedResponse->setMembers($members);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->groupName('[PROJECT]', '[GROUP]');
+        $response = $gapicClient->listGroupMembers($formattedName);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getMembers()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.GroupService/ListGroupMembers', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listGroupMembersExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->groupName('[PROJECT]', '[GROUP]');
+        try {
+            $gapicClient->listGroupMembers($formattedName);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listGroupsTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $groupElement = new Group();
+        $group = [
+            $groupElement,
+        ];
+        $expectedResponse = new ListGroupsResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setGroup($group);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $response = $gapicClient->listGroups($name);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getGroup()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.GroupService/ListGroups', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listGroupsExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $name = 'name3373707';
+        try {
+            $gapicClient->listGroups($name);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateGroupTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name = 'name3373707';
+        $displayName = 'displayName1615086568';
+        $parentName = 'parentName1015022848';
+        $filter = 'filter-1274492040';
+        $isCluster = false;
+        $expectedResponse = new Group();
+        $expectedResponse->setName($name);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setParentName($parentName);
+        $expectedResponse->setFilter($filter);
+        $expectedResponse->setIsCluster($isCluster);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $group = new Group();
+        $response = $gapicClient->updateGroup($group);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.GroupService/UpdateGroup', $actualFuncCall);
+        $actualValue = $actualRequestObject->getGroup();
+        $this->assertProtobufEquals($group, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateGroupExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $group = new Group();
+        try {
+            $gapicClient->updateGroup($group);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/tests/Unit/V3/MetricServiceClientTest.php b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/MetricServiceClientTest.php
new file mode 100644
index 000000000000..443a3f9faf17
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/MetricServiceClientTest.php
@@ -0,0 +1,672 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+namespace Google\Cloud\Monitoring\Tests\Unit\V3;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\Testing\GeneratedTest;
+use Google\ApiCore\Testing\MockTransport;
+use Google\Api\MetricDescriptor;
+use Google\Api\MonitoredResourceDescriptor;
+use Google\Cloud\Monitoring\V3\ListMetricDescriptorsResponse;
+use Google\Cloud\Monitoring\V3\ListMonitoredResourceDescriptorsResponse;
+use Google\Cloud\Monitoring\V3\ListTimeSeriesRequest\TimeSeriesView;
+use Google\Cloud\Monitoring\V3\ListTimeSeriesResponse;
+use Google\Cloud\Monitoring\V3\MetricServiceClient;
+use Google\Cloud\Monitoring\V3\TimeInterval;
+use Google\Cloud\Monitoring\V3\TimeSeries;
+use Google\Protobuf\GPBEmpty;
+use Google\Rpc\Code;
+use stdClass;
+
+/**
+ * @group monitoring
+ *
+ * @group gapic
+ */
+class MetricServiceClientTest extends GeneratedTest
+{
+    /** @return TransportInterface */
+    private function createTransport($deserialize = null)
+    {
+        return new MockTransport($deserialize);
+    }
+
+    /** @return CredentialsWrapper */
+    private function createCredentials()
+    {
+        return $this->getMockBuilder(CredentialsWrapper::class)->disableOriginalConstructor()->getMock();
+    }
+
+    /** @return MetricServiceClient */
+    private function createClient(array $options = [])
+    {
+        $options += [
+            'credentials' => $this->createCredentials(),
+        ];
+        return new MetricServiceClient($options);
+    }
+
+    /** @test */
+    public function createMetricDescriptorTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $type = 'type3575610';
+        $unit = 'unit3594628';
+        $description = 'description-1724546052';
+        $displayName = 'displayName1615086568';
+        $expectedResponse = new MetricDescriptor();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setType($type);
+        $expectedResponse->setUnit($unit);
+        $expectedResponse->setDescription($description);
+        $expectedResponse->setDisplayName($displayName);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $metricDescriptor = new MetricDescriptor();
+        $response = $gapicClient->createMetricDescriptor($name, $metricDescriptor);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.MetricService/CreateMetricDescriptor', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $actualValue = $actualRequestObject->getMetricDescriptor();
+        $this->assertProtobufEquals($metricDescriptor, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createMetricDescriptorExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $name = 'name3373707';
+        $metricDescriptor = new MetricDescriptor();
+        try {
+            $gapicClient->createMetricDescriptor($name, $metricDescriptor);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createServiceTimeSeriesTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $expectedResponse = new GPBEmpty();
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->projectName('[PROJECT]');
+        $timeSeries = [];
+        $gapicClient->createServiceTimeSeries($formattedName, $timeSeries);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.MetricService/CreateServiceTimeSeries', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $actualValue = $actualRequestObject->getTimeSeries();
+        $this->assertProtobufEquals($timeSeries, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createServiceTimeSeriesExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->projectName('[PROJECT]');
+        $timeSeries = [];
+        try {
+            $gapicClient->createServiceTimeSeries($formattedName, $timeSeries);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createTimeSeriesTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $expectedResponse = new GPBEmpty();
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->projectName('[PROJECT]');
+        $timeSeries = [];
+        $gapicClient->createTimeSeries($formattedName, $timeSeries);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.MetricService/CreateTimeSeries', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $actualValue = $actualRequestObject->getTimeSeries();
+        $this->assertProtobufEquals($timeSeries, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createTimeSeriesExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->projectName('[PROJECT]');
+        $timeSeries = [];
+        try {
+            $gapicClient->createTimeSeries($formattedName, $timeSeries);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteMetricDescriptorTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $expectedResponse = new GPBEmpty();
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->metricDescriptorName('[PROJECT]', '[METRIC_DESCRIPTOR]');
+        $gapicClient->deleteMetricDescriptor($formattedName);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.MetricService/DeleteMetricDescriptor', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteMetricDescriptorExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->metricDescriptorName('[PROJECT]', '[METRIC_DESCRIPTOR]');
+        try {
+            $gapicClient->deleteMetricDescriptor($formattedName);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getMetricDescriptorTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $type = 'type3575610';
+        $unit = 'unit3594628';
+        $description = 'description-1724546052';
+        $displayName = 'displayName1615086568';
+        $expectedResponse = new MetricDescriptor();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setType($type);
+        $expectedResponse->setUnit($unit);
+        $expectedResponse->setDescription($description);
+        $expectedResponse->setDisplayName($displayName);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->metricDescriptorName('[PROJECT]', '[METRIC_DESCRIPTOR]');
+        $response = $gapicClient->getMetricDescriptor($formattedName);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.MetricService/GetMetricDescriptor', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getMetricDescriptorExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->metricDescriptorName('[PROJECT]', '[METRIC_DESCRIPTOR]');
+        try {
+            $gapicClient->getMetricDescriptor($formattedName);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getMonitoredResourceDescriptorTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $type = 'type3575610';
+        $displayName = 'displayName1615086568';
+        $description = 'description-1724546052';
+        $expectedResponse = new MonitoredResourceDescriptor();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setType($type);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setDescription($description);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->monitoredResourceDescriptorName('[PROJECT]', '[MONITORED_RESOURCE_DESCRIPTOR]');
+        $response = $gapicClient->getMonitoredResourceDescriptor($formattedName);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.MetricService/GetMonitoredResourceDescriptor', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getMonitoredResourceDescriptorExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->monitoredResourceDescriptorName('[PROJECT]', '[MONITORED_RESOURCE_DESCRIPTOR]');
+        try {
+            $gapicClient->getMonitoredResourceDescriptor($formattedName);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listMetricDescriptorsTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $metricDescriptorsElement = new MetricDescriptor();
+        $metricDescriptors = [
+            $metricDescriptorsElement,
+        ];
+        $expectedResponse = new ListMetricDescriptorsResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setMetricDescriptors($metricDescriptors);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $response = $gapicClient->listMetricDescriptors($name);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getMetricDescriptors()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.MetricService/ListMetricDescriptors', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listMetricDescriptorsExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $name = 'name3373707';
+        try {
+            $gapicClient->listMetricDescriptors($name);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listMonitoredResourceDescriptorsTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $resourceDescriptorsElement = new MonitoredResourceDescriptor();
+        $resourceDescriptors = [
+            $resourceDescriptorsElement,
+        ];
+        $expectedResponse = new ListMonitoredResourceDescriptorsResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setResourceDescriptors($resourceDescriptors);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $response = $gapicClient->listMonitoredResourceDescriptors($name);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getResourceDescriptors()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.MetricService/ListMonitoredResourceDescriptors', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listMonitoredResourceDescriptorsExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $name = 'name3373707';
+        try {
+            $gapicClient->listMonitoredResourceDescriptors($name);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listTimeSeriesTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $unit = 'unit3594628';
+        $timeSeriesElement = new TimeSeries();
+        $timeSeries = [
+            $timeSeriesElement,
+        ];
+        $expectedResponse = new ListTimeSeriesResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setUnit($unit);
+        $expectedResponse->setTimeSeries($timeSeries);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->workspaceName('[PROJECT]');
+        $filter = 'filter-1274492040';
+        $interval = new TimeInterval();
+        $view = TimeSeriesView::FULL;
+        $response = $gapicClient->listTimeSeries($formattedName, $filter, $interval, $view);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getTimeSeries()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.MetricService/ListTimeSeries', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $actualValue = $actualRequestObject->getFilter();
+        $this->assertProtobufEquals($filter, $actualValue);
+        $actualValue = $actualRequestObject->getInterval();
+        $this->assertProtobufEquals($interval, $actualValue);
+        $actualValue = $actualRequestObject->getView();
+        $this->assertProtobufEquals($view, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listTimeSeriesExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->workspaceName('[PROJECT]');
+        $filter = 'filter-1274492040';
+        $interval = new TimeInterval();
+        $view = TimeSeriesView::FULL;
+        try {
+            $gapicClient->listTimeSeries($formattedName, $filter, $interval, $view);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/tests/Unit/V3/NotificationChannelServiceClientTest.php b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/NotificationChannelServiceClientTest.php
new file mode 100644
index 000000000000..9b115e176970
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/NotificationChannelServiceClientTest.php
@@ -0,0 +1,716 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+namespace Google\Cloud\Monitoring\Tests\Unit\V3;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\Testing\GeneratedTest;
+use Google\ApiCore\Testing\MockTransport;
+use Google\Cloud\Monitoring\V3\GetNotificationChannelVerificationCodeResponse;
+use Google\Cloud\Monitoring\V3\ListNotificationChannelDescriptorsResponse;
+use Google\Cloud\Monitoring\V3\ListNotificationChannelsResponse;
+use Google\Cloud\Monitoring\V3\NotificationChannel;
+use Google\Cloud\Monitoring\V3\NotificationChannelDescriptor;
+use Google\Cloud\Monitoring\V3\NotificationChannelServiceClient;
+use Google\Protobuf\GPBEmpty;
+use Google\Rpc\Code;
+use stdClass;
+
+/**
+ * @group monitoring
+ *
+ * @group gapic
+ */
+class NotificationChannelServiceClientTest extends GeneratedTest
+{
+    /** @return TransportInterface */
+    private function createTransport($deserialize = null)
+    {
+        return new MockTransport($deserialize);
+    }
+
+    /** @return CredentialsWrapper */
+    private function createCredentials()
+    {
+        return $this->getMockBuilder(CredentialsWrapper::class)->disableOriginalConstructor()->getMock();
+    }
+
+    /** @return NotificationChannelServiceClient */
+    private function createClient(array $options = [])
+    {
+        $options += [
+            'credentials' => $this->createCredentials(),
+        ];
+        return new NotificationChannelServiceClient($options);
+    }
+
+    /** @test */
+    public function createNotificationChannelTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $type = 'type3575610';
+        $name2 = 'name2-1052831874';
+        $displayName = 'displayName1615086568';
+        $description = 'description-1724546052';
+        $expectedResponse = new NotificationChannel();
+        $expectedResponse->setType($type);
+        $expectedResponse->setName($name2);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setDescription($description);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $notificationChannel = new NotificationChannel();
+        $response = $gapicClient->createNotificationChannel($name, $notificationChannel);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.NotificationChannelService/CreateNotificationChannel', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $actualValue = $actualRequestObject->getNotificationChannel();
+        $this->assertProtobufEquals($notificationChannel, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createNotificationChannelExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $name = 'name3373707';
+        $notificationChannel = new NotificationChannel();
+        try {
+            $gapicClient->createNotificationChannel($name, $notificationChannel);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteNotificationChannelTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $expectedResponse = new GPBEmpty();
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->notificationChannelName('[PROJECT]', '[NOTIFICATION_CHANNEL]');
+        $gapicClient->deleteNotificationChannel($formattedName);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.NotificationChannelService/DeleteNotificationChannel', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteNotificationChannelExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->notificationChannelName('[PROJECT]', '[NOTIFICATION_CHANNEL]');
+        try {
+            $gapicClient->deleteNotificationChannel($formattedName);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getNotificationChannelTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $type = 'type3575610';
+        $name2 = 'name2-1052831874';
+        $displayName = 'displayName1615086568';
+        $description = 'description-1724546052';
+        $expectedResponse = new NotificationChannel();
+        $expectedResponse->setType($type);
+        $expectedResponse->setName($name2);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setDescription($description);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->notificationChannelName('[PROJECT]', '[NOTIFICATION_CHANNEL]');
+        $response = $gapicClient->getNotificationChannel($formattedName);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.NotificationChannelService/GetNotificationChannel', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getNotificationChannelExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->notificationChannelName('[PROJECT]', '[NOTIFICATION_CHANNEL]');
+        try {
+            $gapicClient->getNotificationChannel($formattedName);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getNotificationChannelDescriptorTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $type = 'type3575610';
+        $displayName = 'displayName1615086568';
+        $description = 'description-1724546052';
+        $expectedResponse = new NotificationChannelDescriptor();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setType($type);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setDescription($description);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->notificationChannelDescriptorName('[PROJECT]', '[CHANNEL_DESCRIPTOR]');
+        $response = $gapicClient->getNotificationChannelDescriptor($formattedName);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.NotificationChannelService/GetNotificationChannelDescriptor', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getNotificationChannelDescriptorExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->notificationChannelDescriptorName('[PROJECT]', '[CHANNEL_DESCRIPTOR]');
+        try {
+            $gapicClient->getNotificationChannelDescriptor($formattedName);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getNotificationChannelVerificationCodeTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $code = 'code3059181';
+        $expectedResponse = new GetNotificationChannelVerificationCodeResponse();
+        $expectedResponse->setCode($code);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->notificationChannelName('[PROJECT]', '[NOTIFICATION_CHANNEL]');
+        $response = $gapicClient->getNotificationChannelVerificationCode($formattedName);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.NotificationChannelService/GetNotificationChannelVerificationCode', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getNotificationChannelVerificationCodeExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->notificationChannelName('[PROJECT]', '[NOTIFICATION_CHANNEL]');
+        try {
+            $gapicClient->getNotificationChannelVerificationCode($formattedName);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listNotificationChannelDescriptorsTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $channelDescriptorsElement = new NotificationChannelDescriptor();
+        $channelDescriptors = [
+            $channelDescriptorsElement,
+        ];
+        $expectedResponse = new ListNotificationChannelDescriptorsResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setChannelDescriptors($channelDescriptors);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $response = $gapicClient->listNotificationChannelDescriptors($name);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getChannelDescriptors()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.NotificationChannelService/ListNotificationChannelDescriptors', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listNotificationChannelDescriptorsExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $name = 'name3373707';
+        try {
+            $gapicClient->listNotificationChannelDescriptors($name);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listNotificationChannelsTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $totalSize = 705419236;
+        $notificationChannelsElement = new NotificationChannel();
+        $notificationChannels = [
+            $notificationChannelsElement,
+        ];
+        $expectedResponse = new ListNotificationChannelsResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setTotalSize($totalSize);
+        $expectedResponse->setNotificationChannels($notificationChannels);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $response = $gapicClient->listNotificationChannels($name);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getNotificationChannels()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.NotificationChannelService/ListNotificationChannels', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listNotificationChannelsExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $name = 'name3373707';
+        try {
+            $gapicClient->listNotificationChannels($name);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function sendNotificationChannelVerificationCodeTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $expectedResponse = new GPBEmpty();
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->notificationChannelName('[PROJECT]', '[NOTIFICATION_CHANNEL]');
+        $gapicClient->sendNotificationChannelVerificationCode($formattedName);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.NotificationChannelService/SendNotificationChannelVerificationCode', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function sendNotificationChannelVerificationCodeExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->notificationChannelName('[PROJECT]', '[NOTIFICATION_CHANNEL]');
+        try {
+            $gapicClient->sendNotificationChannelVerificationCode($formattedName);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateNotificationChannelTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $type = 'type3575610';
+        $name = 'name3373707';
+        $displayName = 'displayName1615086568';
+        $description = 'description-1724546052';
+        $expectedResponse = new NotificationChannel();
+        $expectedResponse->setType($type);
+        $expectedResponse->setName($name);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setDescription($description);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $notificationChannel = new NotificationChannel();
+        $response = $gapicClient->updateNotificationChannel($notificationChannel);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.NotificationChannelService/UpdateNotificationChannel', $actualFuncCall);
+        $actualValue = $actualRequestObject->getNotificationChannel();
+        $this->assertProtobufEquals($notificationChannel, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateNotificationChannelExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $notificationChannel = new NotificationChannel();
+        try {
+            $gapicClient->updateNotificationChannel($notificationChannel);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function verifyNotificationChannelTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $type = 'type3575610';
+        $name2 = 'name2-1052831874';
+        $displayName = 'displayName1615086568';
+        $description = 'description-1724546052';
+        $expectedResponse = new NotificationChannel();
+        $expectedResponse->setType($type);
+        $expectedResponse->setName($name2);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setDescription($description);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->notificationChannelName('[PROJECT]', '[NOTIFICATION_CHANNEL]');
+        $code = 'code3059181';
+        $response = $gapicClient->verifyNotificationChannel($formattedName, $code);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.NotificationChannelService/VerifyNotificationChannel', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $actualValue = $actualRequestObject->getCode();
+        $this->assertProtobufEquals($code, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function verifyNotificationChannelExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->notificationChannelName('[PROJECT]', '[NOTIFICATION_CHANNEL]');
+        $code = 'code3059181';
+        try {
+            $gapicClient->verifyNotificationChannel($formattedName, $code);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/tests/Unit/V3/QueryServiceClientTest.php b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/QueryServiceClientTest.php
new file mode 100644
index 000000000000..c64caa89013d
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/QueryServiceClientTest.php
@@ -0,0 +1,134 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+namespace Google\Cloud\Monitoring\Tests\Unit\V3;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\Testing\GeneratedTest;
+use Google\ApiCore\Testing\MockTransport;
+use Google\Cloud\Monitoring\V3\QueryServiceClient;
+use Google\Cloud\Monitoring\V3\QueryTimeSeriesResponse;
+use Google\Cloud\Monitoring\V3\TimeSeriesData;
+use Google\Rpc\Code;
+use stdClass;
+
+/**
+ * @group monitoring
+ *
+ * @group gapic
+ */
+class QueryServiceClientTest extends GeneratedTest
+{
+    /** @return TransportInterface */
+    private function createTransport($deserialize = null)
+    {
+        return new MockTransport($deserialize);
+    }
+
+    /** @return CredentialsWrapper */
+    private function createCredentials()
+    {
+        return $this->getMockBuilder(CredentialsWrapper::class)->disableOriginalConstructor()->getMock();
+    }
+
+    /** @return QueryServiceClient */
+    private function createClient(array $options = [])
+    {
+        $options += [
+            'credentials' => $this->createCredentials(),
+        ];
+        return new QueryServiceClient($options);
+    }
+
+    /** @test */
+    public function queryTimeSeriesTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $timeSeriesDataElement = new TimeSeriesData();
+        $timeSeriesData = [
+            $timeSeriesDataElement,
+        ];
+        $expectedResponse = new QueryTimeSeriesResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setTimeSeriesData($timeSeriesData);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $name = 'name3373707';
+        $query = 'query107944136';
+        $response = $gapicClient->queryTimeSeries($name, $query);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getTimeSeriesData()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.QueryService/QueryTimeSeries', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($name, $actualValue);
+        $actualValue = $actualRequestObject->getQuery();
+        $this->assertProtobufEquals($query, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function queryTimeSeriesExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $name = 'name3373707';
+        $query = 'query107944136';
+        try {
+            $gapicClient->queryTimeSeries($name, $query);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/tests/Unit/V3/ServiceMonitoringServiceClientTest.php b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/ServiceMonitoringServiceClientTest.php
new file mode 100644
index 000000000000..7651f7245bce
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/ServiceMonitoringServiceClientTest.php
@@ -0,0 +1,701 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+namespace Google\Cloud\Monitoring\Tests\Unit\V3;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\Testing\GeneratedTest;
+use Google\ApiCore\Testing\MockTransport;
+use Google\Cloud\Monitoring\V3\ListServiceLevelObjectivesResponse;
+use Google\Cloud\Monitoring\V3\ListServicesResponse;
+use Google\Cloud\Monitoring\V3\Service;
+use Google\Cloud\Monitoring\V3\ServiceLevelObjective;
+use Google\Cloud\Monitoring\V3\ServiceMonitoringServiceClient;
+use Google\Protobuf\GPBEmpty;
+use Google\Rpc\Code;
+use stdClass;
+
+/**
+ * @group monitoring
+ *
+ * @group gapic
+ */
+class ServiceMonitoringServiceClientTest extends GeneratedTest
+{
+    /** @return TransportInterface */
+    private function createTransport($deserialize = null)
+    {
+        return new MockTransport($deserialize);
+    }
+
+    /** @return CredentialsWrapper */
+    private function createCredentials()
+    {
+        return $this->getMockBuilder(CredentialsWrapper::class)->disableOriginalConstructor()->getMock();
+    }
+
+    /** @return ServiceMonitoringServiceClient */
+    private function createClient(array $options = [])
+    {
+        $options += [
+            'credentials' => $this->createCredentials(),
+        ];
+        return new ServiceMonitoringServiceClient($options);
+    }
+
+    /** @test */
+    public function createServiceTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name = 'name3373707';
+        $displayName = 'displayName1615086568';
+        $expectedResponse = new Service();
+        $expectedResponse->setName($name);
+        $expectedResponse->setDisplayName($displayName);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $parent = 'parent-995424086';
+        $service = new Service();
+        $response = $gapicClient->createService($parent, $service);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.ServiceMonitoringService/CreateService', $actualFuncCall);
+        $actualValue = $actualRequestObject->getParent();
+        $this->assertProtobufEquals($parent, $actualValue);
+        $actualValue = $actualRequestObject->getService();
+        $this->assertProtobufEquals($service, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createServiceExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $parent = 'parent-995424086';
+        $service = new Service();
+        try {
+            $gapicClient->createService($parent, $service);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createServiceLevelObjectiveTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name = 'name3373707';
+        $displayName = 'displayName1615086568';
+        $goal = 317825.0;
+        $expectedResponse = new ServiceLevelObjective();
+        $expectedResponse->setName($name);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setGoal($goal);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedParent = $gapicClient->serviceName('[PROJECT]', '[SERVICE]');
+        $serviceLevelObjective = new ServiceLevelObjective();
+        $response = $gapicClient->createServiceLevelObjective($formattedParent, $serviceLevelObjective);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.ServiceMonitoringService/CreateServiceLevelObjective', $actualFuncCall);
+        $actualValue = $actualRequestObject->getParent();
+        $this->assertProtobufEquals($formattedParent, $actualValue);
+        $actualValue = $actualRequestObject->getServiceLevelObjective();
+        $this->assertProtobufEquals($serviceLevelObjective, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createServiceLevelObjectiveExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedParent = $gapicClient->serviceName('[PROJECT]', '[SERVICE]');
+        $serviceLevelObjective = new ServiceLevelObjective();
+        try {
+            $gapicClient->createServiceLevelObjective($formattedParent, $serviceLevelObjective);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteServiceTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $expectedResponse = new GPBEmpty();
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->serviceName('[PROJECT]', '[SERVICE]');
+        $gapicClient->deleteService($formattedName);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.ServiceMonitoringService/DeleteService', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteServiceExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->serviceName('[PROJECT]', '[SERVICE]');
+        try {
+            $gapicClient->deleteService($formattedName);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteServiceLevelObjectiveTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $expectedResponse = new GPBEmpty();
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->serviceLevelObjectiveName('[PROJECT]', '[SERVICE]', '[SERVICE_LEVEL_OBJECTIVE]');
+        $gapicClient->deleteServiceLevelObjective($formattedName);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.ServiceMonitoringService/DeleteServiceLevelObjective', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteServiceLevelObjectiveExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->serviceLevelObjectiveName('[PROJECT]', '[SERVICE]', '[SERVICE_LEVEL_OBJECTIVE]');
+        try {
+            $gapicClient->deleteServiceLevelObjective($formattedName);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getServiceTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $displayName = 'displayName1615086568';
+        $expectedResponse = new Service();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setDisplayName($displayName);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->serviceName('[PROJECT]', '[SERVICE]');
+        $response = $gapicClient->getService($formattedName);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.ServiceMonitoringService/GetService', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getServiceExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->serviceName('[PROJECT]', '[SERVICE]');
+        try {
+            $gapicClient->getService($formattedName);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getServiceLevelObjectiveTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $displayName = 'displayName1615086568';
+        $goal = 317825.0;
+        $expectedResponse = new ServiceLevelObjective();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setGoal($goal);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->serviceLevelObjectiveName('[PROJECT]', '[SERVICE]', '[SERVICE_LEVEL_OBJECTIVE]');
+        $response = $gapicClient->getServiceLevelObjective($formattedName);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.ServiceMonitoringService/GetServiceLevelObjective', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getServiceLevelObjectiveExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->serviceLevelObjectiveName('[PROJECT]', '[SERVICE]', '[SERVICE_LEVEL_OBJECTIVE]');
+        try {
+            $gapicClient->getServiceLevelObjective($formattedName);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listServiceLevelObjectivesTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $serviceLevelObjectivesElement = new ServiceLevelObjective();
+        $serviceLevelObjectives = [
+            $serviceLevelObjectivesElement,
+        ];
+        $expectedResponse = new ListServiceLevelObjectivesResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setServiceLevelObjectives($serviceLevelObjectives);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedParent = $gapicClient->serviceName('[PROJECT]', '[SERVICE]');
+        $response = $gapicClient->listServiceLevelObjectives($formattedParent);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getServiceLevelObjectives()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.ServiceMonitoringService/ListServiceLevelObjectives', $actualFuncCall);
+        $actualValue = $actualRequestObject->getParent();
+        $this->assertProtobufEquals($formattedParent, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listServiceLevelObjectivesExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedParent = $gapicClient->serviceName('[PROJECT]', '[SERVICE]');
+        try {
+            $gapicClient->listServiceLevelObjectives($formattedParent);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listServicesTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $servicesElement = new Service();
+        $services = [
+            $servicesElement,
+        ];
+        $expectedResponse = new ListServicesResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setServices($services);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $parent = 'parent-995424086';
+        $response = $gapicClient->listServices($parent);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getServices()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.ServiceMonitoringService/ListServices', $actualFuncCall);
+        $actualValue = $actualRequestObject->getParent();
+        $this->assertProtobufEquals($parent, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listServicesExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $parent = 'parent-995424086';
+        try {
+            $gapicClient->listServices($parent);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateServiceTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name = 'name3373707';
+        $displayName = 'displayName1615086568';
+        $expectedResponse = new Service();
+        $expectedResponse->setName($name);
+        $expectedResponse->setDisplayName($displayName);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $service = new Service();
+        $response = $gapicClient->updateService($service);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.ServiceMonitoringService/UpdateService', $actualFuncCall);
+        $actualValue = $actualRequestObject->getService();
+        $this->assertProtobufEquals($service, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateServiceExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $service = new Service();
+        try {
+            $gapicClient->updateService($service);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateServiceLevelObjectiveTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name = 'name3373707';
+        $displayName = 'displayName1615086568';
+        $goal = 317825.0;
+        $expectedResponse = new ServiceLevelObjective();
+        $expectedResponse->setName($name);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setGoal($goal);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $serviceLevelObjective = new ServiceLevelObjective();
+        $response = $gapicClient->updateServiceLevelObjective($serviceLevelObjective);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.ServiceMonitoringService/UpdateServiceLevelObjective', $actualFuncCall);
+        $actualValue = $actualRequestObject->getServiceLevelObjective();
+        $this->assertProtobufEquals($serviceLevelObjective, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateServiceLevelObjectiveExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $serviceLevelObjective = new ServiceLevelObjective();
+        try {
+            $gapicClient->updateServiceLevelObjective($serviceLevelObjective);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/tests/Unit/V3/SnoozeServiceClientTest.php b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/SnoozeServiceClientTest.php
new file mode 100644
index 000000000000..e446ff828d47
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/SnoozeServiceClientTest.php
@@ -0,0 +1,351 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+namespace Google\Cloud\Monitoring\Tests\Unit\V3;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\Testing\GeneratedTest;
+use Google\ApiCore\Testing\MockTransport;
+use Google\Cloud\Monitoring\V3\ListSnoozesResponse;
+use Google\Cloud\Monitoring\V3\Snooze;
+use Google\Cloud\Monitoring\V3\SnoozeServiceClient;
+use Google\Cloud\Monitoring\V3\Snooze\Criteria;
+use Google\Cloud\Monitoring\V3\TimeInterval;
+use Google\Protobuf\FieldMask;
+use Google\Rpc\Code;
+use stdClass;
+
+/**
+ * @group monitoring
+ *
+ * @group gapic
+ */
+class SnoozeServiceClientTest extends GeneratedTest
+{
+    /** @return TransportInterface */
+    private function createTransport($deserialize = null)
+    {
+        return new MockTransport($deserialize);
+    }
+
+    /** @return CredentialsWrapper */
+    private function createCredentials()
+    {
+        return $this->getMockBuilder(CredentialsWrapper::class)->disableOriginalConstructor()->getMock();
+    }
+
+    /** @return SnoozeServiceClient */
+    private function createClient(array $options = [])
+    {
+        $options += [
+            'credentials' => $this->createCredentials(),
+        ];
+        return new SnoozeServiceClient($options);
+    }
+
+    /** @test */
+    public function createSnoozeTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name = 'name3373707';
+        $displayName = 'displayName1615086568';
+        $expectedResponse = new Snooze();
+        $expectedResponse->setName($name);
+        $expectedResponse->setDisplayName($displayName);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedParent = $gapicClient->workspaceName('[PROJECT]');
+        $snooze = new Snooze();
+        $snoozeCriteria = new Criteria();
+        $snooze->setCriteria($snoozeCriteria);
+        $snoozeInterval = new TimeInterval();
+        $snooze->setInterval($snoozeInterval);
+        $snoozeDisplayName = 'snoozeDisplayName-1956223833';
+        $snooze->setDisplayName($snoozeDisplayName);
+        $response = $gapicClient->createSnooze($formattedParent, $snooze);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.SnoozeService/CreateSnooze', $actualFuncCall);
+        $actualValue = $actualRequestObject->getParent();
+        $this->assertProtobufEquals($formattedParent, $actualValue);
+        $actualValue = $actualRequestObject->getSnooze();
+        $this->assertProtobufEquals($snooze, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createSnoozeExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedParent = $gapicClient->workspaceName('[PROJECT]');
+        $snooze = new Snooze();
+        $snoozeCriteria = new Criteria();
+        $snooze->setCriteria($snoozeCriteria);
+        $snoozeInterval = new TimeInterval();
+        $snooze->setInterval($snoozeInterval);
+        $snoozeDisplayName = 'snoozeDisplayName-1956223833';
+        $snooze->setDisplayName($snoozeDisplayName);
+        try {
+            $gapicClient->createSnooze($formattedParent, $snooze);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getSnoozeTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $displayName = 'displayName1615086568';
+        $expectedResponse = new Snooze();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setDisplayName($displayName);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->snoozeName('[PROJECT]', '[SNOOZE]');
+        $response = $gapicClient->getSnooze($formattedName);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.SnoozeService/GetSnooze', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getSnoozeExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->snoozeName('[PROJECT]', '[SNOOZE]');
+        try {
+            $gapicClient->getSnooze($formattedName);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listSnoozesTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $snoozesElement = new Snooze();
+        $snoozes = [
+            $snoozesElement,
+        ];
+        $expectedResponse = new ListSnoozesResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setSnoozes($snoozes);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedParent = $gapicClient->workspaceName('[PROJECT]');
+        $response = $gapicClient->listSnoozes($formattedParent);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getSnoozes()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.SnoozeService/ListSnoozes', $actualFuncCall);
+        $actualValue = $actualRequestObject->getParent();
+        $this->assertProtobufEquals($formattedParent, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listSnoozesExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedParent = $gapicClient->workspaceName('[PROJECT]');
+        try {
+            $gapicClient->listSnoozes($formattedParent);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateSnoozeTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name = 'name3373707';
+        $displayName = 'displayName1615086568';
+        $expectedResponse = new Snooze();
+        $expectedResponse->setName($name);
+        $expectedResponse->setDisplayName($displayName);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $snooze = new Snooze();
+        $snoozeCriteria = new Criteria();
+        $snooze->setCriteria($snoozeCriteria);
+        $snoozeInterval = new TimeInterval();
+        $snooze->setInterval($snoozeInterval);
+        $snoozeDisplayName = 'snoozeDisplayName-1956223833';
+        $snooze->setDisplayName($snoozeDisplayName);
+        $updateMask = new FieldMask();
+        $response = $gapicClient->updateSnooze($snooze, $updateMask);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.SnoozeService/UpdateSnooze', $actualFuncCall);
+        $actualValue = $actualRequestObject->getSnooze();
+        $this->assertProtobufEquals($snooze, $actualValue);
+        $actualValue = $actualRequestObject->getUpdateMask();
+        $this->assertProtobufEquals($updateMask, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateSnoozeExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $snooze = new Snooze();
+        $snoozeCriteria = new Criteria();
+        $snooze->setCriteria($snoozeCriteria);
+        $snoozeInterval = new TimeInterval();
+        $snooze->setInterval($snoozeInterval);
+        $snoozeDisplayName = 'snoozeDisplayName-1956223833';
+        $snooze->setDisplayName($snoozeDisplayName);
+        $updateMask = new FieldMask();
+        try {
+            $gapicClient->updateSnooze($snooze, $updateMask);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+}
diff --git a/owl-bot-staging/Monitoring/v3/tests/Unit/V3/UptimeCheckServiceClientTest.php b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/UptimeCheckServiceClientTest.php
new file mode 100644
index 000000000000..40d14acd439f
--- /dev/null
+++ b/owl-bot-staging/Monitoring/v3/tests/Unit/V3/UptimeCheckServiceClientTest.php
@@ -0,0 +1,450 @@
+<?php
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * GENERATED CODE WARNING
+ * This file was automatically generated - do not edit!
+ */
+
+namespace Google\Cloud\Monitoring\Tests\Unit\V3;
+
+use Google\ApiCore\ApiException;
+use Google\ApiCore\CredentialsWrapper;
+use Google\ApiCore\Testing\GeneratedTest;
+use Google\ApiCore\Testing\MockTransport;
+use Google\Cloud\Monitoring\V3\ListUptimeCheckConfigsResponse;
+use Google\Cloud\Monitoring\V3\ListUptimeCheckIpsResponse;
+use Google\Cloud\Monitoring\V3\UptimeCheckConfig;
+use Google\Cloud\Monitoring\V3\UptimeCheckIp;
+use Google\Cloud\Monitoring\V3\UptimeCheckServiceClient;
+use Google\Protobuf\GPBEmpty;
+use Google\Rpc\Code;
+use stdClass;
+
+/**
+ * @group monitoring
+ *
+ * @group gapic
+ */
+class UptimeCheckServiceClientTest extends GeneratedTest
+{
+    /** @return TransportInterface */
+    private function createTransport($deserialize = null)
+    {
+        return new MockTransport($deserialize);
+    }
+
+    /** @return CredentialsWrapper */
+    private function createCredentials()
+    {
+        return $this->getMockBuilder(CredentialsWrapper::class)->disableOriginalConstructor()->getMock();
+    }
+
+    /** @return UptimeCheckServiceClient */
+    private function createClient(array $options = [])
+    {
+        $options += [
+            'credentials' => $this->createCredentials(),
+        ];
+        return new UptimeCheckServiceClient($options);
+    }
+
+    /** @test */
+    public function createUptimeCheckConfigTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name = 'name3373707';
+        $displayName = 'displayName1615086568';
+        $isInternal = true;
+        $expectedResponse = new UptimeCheckConfig();
+        $expectedResponse->setName($name);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setIsInternal($isInternal);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $parent = 'parent-995424086';
+        $uptimeCheckConfig = new UptimeCheckConfig();
+        $response = $gapicClient->createUptimeCheckConfig($parent, $uptimeCheckConfig);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.UptimeCheckService/CreateUptimeCheckConfig', $actualFuncCall);
+        $actualValue = $actualRequestObject->getParent();
+        $this->assertProtobufEquals($parent, $actualValue);
+        $actualValue = $actualRequestObject->getUptimeCheckConfig();
+        $this->assertProtobufEquals($uptimeCheckConfig, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function createUptimeCheckConfigExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $parent = 'parent-995424086';
+        $uptimeCheckConfig = new UptimeCheckConfig();
+        try {
+            $gapicClient->createUptimeCheckConfig($parent, $uptimeCheckConfig);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteUptimeCheckConfigTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $expectedResponse = new GPBEmpty();
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->uptimeCheckConfigName('[PROJECT]', '[UPTIME_CHECK_CONFIG]');
+        $gapicClient->deleteUptimeCheckConfig($formattedName);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.UptimeCheckService/DeleteUptimeCheckConfig', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function deleteUptimeCheckConfigExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->uptimeCheckConfigName('[PROJECT]', '[UPTIME_CHECK_CONFIG]');
+        try {
+            $gapicClient->deleteUptimeCheckConfig($formattedName);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getUptimeCheckConfigTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name2 = 'name2-1052831874';
+        $displayName = 'displayName1615086568';
+        $isInternal = true;
+        $expectedResponse = new UptimeCheckConfig();
+        $expectedResponse->setName($name2);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setIsInternal($isInternal);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $formattedName = $gapicClient->uptimeCheckConfigName('[PROJECT]', '[UPTIME_CHECK_CONFIG]');
+        $response = $gapicClient->getUptimeCheckConfig($formattedName);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.UptimeCheckService/GetUptimeCheckConfig', $actualFuncCall);
+        $actualValue = $actualRequestObject->getName();
+        $this->assertProtobufEquals($formattedName, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function getUptimeCheckConfigExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $formattedName = $gapicClient->uptimeCheckConfigName('[PROJECT]', '[UPTIME_CHECK_CONFIG]');
+        try {
+            $gapicClient->getUptimeCheckConfig($formattedName);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listUptimeCheckConfigsTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $totalSize = 705419236;
+        $uptimeCheckConfigsElement = new UptimeCheckConfig();
+        $uptimeCheckConfigs = [
+            $uptimeCheckConfigsElement,
+        ];
+        $expectedResponse = new ListUptimeCheckConfigsResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setTotalSize($totalSize);
+        $expectedResponse->setUptimeCheckConfigs($uptimeCheckConfigs);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $parent = 'parent-995424086';
+        $response = $gapicClient->listUptimeCheckConfigs($parent);
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getUptimeCheckConfigs()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.UptimeCheckService/ListUptimeCheckConfigs', $actualFuncCall);
+        $actualValue = $actualRequestObject->getParent();
+        $this->assertProtobufEquals($parent, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listUptimeCheckConfigsExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $parent = 'parent-995424086';
+        try {
+            $gapicClient->listUptimeCheckConfigs($parent);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listUptimeCheckIpsTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $nextPageToken = '';
+        $uptimeCheckIpsElement = new UptimeCheckIp();
+        $uptimeCheckIps = [
+            $uptimeCheckIpsElement,
+        ];
+        $expectedResponse = new ListUptimeCheckIpsResponse();
+        $expectedResponse->setNextPageToken($nextPageToken);
+        $expectedResponse->setUptimeCheckIps($uptimeCheckIps);
+        $transport->addResponse($expectedResponse);
+        $response = $gapicClient->listUptimeCheckIps();
+        $this->assertEquals($expectedResponse, $response->getPage()->getResponseObject());
+        $resources = iterator_to_array($response->iterateAllElements());
+        $this->assertSame(1, count($resources));
+        $this->assertEquals($expectedResponse->getUptimeCheckIps()[0], $resources[0]);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.UptimeCheckService/ListUptimeCheckIps', $actualFuncCall);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function listUptimeCheckIpsExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        try {
+            $gapicClient->listUptimeCheckIps();
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateUptimeCheckConfigTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        // Mock response
+        $name = 'name3373707';
+        $displayName = 'displayName1615086568';
+        $isInternal = true;
+        $expectedResponse = new UptimeCheckConfig();
+        $expectedResponse->setName($name);
+        $expectedResponse->setDisplayName($displayName);
+        $expectedResponse->setIsInternal($isInternal);
+        $transport->addResponse($expectedResponse);
+        // Mock request
+        $uptimeCheckConfig = new UptimeCheckConfig();
+        $response = $gapicClient->updateUptimeCheckConfig($uptimeCheckConfig);
+        $this->assertEquals($expectedResponse, $response);
+        $actualRequests = $transport->popReceivedCalls();
+        $this->assertSame(1, count($actualRequests));
+        $actualFuncCall = $actualRequests[0]->getFuncCall();
+        $actualRequestObject = $actualRequests[0]->getRequestObject();
+        $this->assertSame('/google.monitoring.v3.UptimeCheckService/UpdateUptimeCheckConfig', $actualFuncCall);
+        $actualValue = $actualRequestObject->getUptimeCheckConfig();
+        $this->assertProtobufEquals($uptimeCheckConfig, $actualValue);
+        $this->assertTrue($transport->isExhausted());
+    }
+
+    /** @test */
+    public function updateUptimeCheckConfigExceptionTest()
+    {
+        $transport = $this->createTransport();
+        $gapicClient = $this->createClient([
+            'transport' => $transport,
+        ]);
+        $this->assertTrue($transport->isExhausted());
+        $status = new stdClass();
+        $status->code = Code::DATA_LOSS;
+        $status->details = 'internal error';
+        $expectedExceptionMessage  = json_encode([
+            'message' => 'internal error',
+            'code' => Code::DATA_LOSS,
+            'status' => 'DATA_LOSS',
+            'details' => [],
+        ], JSON_PRETTY_PRINT);
+        $transport->addResponse(null, $status);
+        // Mock request
+        $uptimeCheckConfig = new UptimeCheckConfig();
+        try {
+            $gapicClient->updateUptimeCheckConfig($uptimeCheckConfig);
+            // If the $gapicClient method call did not throw, fail the test
+            $this->fail('Expected an ApiException, but no exception was thrown.');
+        } catch (ApiException $ex) {
+            $this->assertEquals($status->code, $ex->getCode());
+            $this->assertEquals($expectedExceptionMessage, $ex->getMessage());
+        }
+        // Call popReceivedCalls to ensure the stub is exhausted
+        $transport->popReceivedCalls();
+        $this->assertTrue($transport->isExhausted());
+    }
+}