diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/alert_policy_service/async_client.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/alert_policy_service/async_client.py
index d2f0edd541c4..e4ba87cecb73 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/alert_policy_service/async_client.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/alert_policy_service/async_client.py
@@ -42,6 +42,7 @@
 except AttributeError:  # pragma: NO COVER
     OptionalRetry = Union[retries.AsyncRetry, object, None]  # type: ignore
 
+from google.longrunning import operations_pb2  # type: ignore
 from google.protobuf import field_mask_pb2  # type: ignore
 from google.protobuf import wrappers_pb2  # type: ignore
 from google.rpc import status_pb2  # type: ignore
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/alert_policy_service/client.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/alert_policy_service/client.py
index cd17e64e1f71..96021e35be14 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/alert_policy_service/client.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/alert_policy_service/client.py
@@ -47,6 +47,7 @@
 except AttributeError:  # pragma: NO COVER
     OptionalRetry = Union[retries.Retry, object, None]  # type: ignore
 
+from google.longrunning import operations_pb2  # type: ignore
 from google.protobuf import field_mask_pb2  # type: ignore
 from google.protobuf import wrappers_pb2  # type: ignore
 from google.rpc import status_pb2  # type: ignore
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/alert_policy_service/transports/base.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/alert_policy_service/transports/base.py
index c07d451f002c..9d9d4685bfe2 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/alert_policy_service/transports/base.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/alert_policy_service/transports/base.py
@@ -22,6 +22,7 @@
 from google.api_core import retry as retries
 import google.auth  # type: ignore
 from google.auth import credentials as ga_credentials  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 from google.oauth2 import service_account  # type: ignore
 from google.protobuf import empty_pb2  # type: ignore
 
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/alert_policy_service/transports/grpc.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/alert_policy_service/transports/grpc.py
index 00d582560beb..360d97028ce0 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/alert_policy_service/transports/grpc.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/alert_policy_service/transports/grpc.py
@@ -20,6 +20,7 @@
 import google.auth  # type: ignore
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.auth.transport.grpc import SslCredentials  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 from google.protobuf import empty_pb2  # type: ignore
 import grpc  # type: ignore
 
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/alert_policy_service/transports/grpc_asyncio.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/alert_policy_service/transports/grpc_asyncio.py
index e4d9b2ef00f9..7ddad5a4a836 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/alert_policy_service/transports/grpc_asyncio.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/alert_policy_service/transports/grpc_asyncio.py
@@ -19,6 +19,7 @@
 from google.api_core import gapic_v1, grpc_helpers_async
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.auth.transport.grpc import SslCredentials  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 from google.protobuf import empty_pb2  # type: ignore
 import grpc  # type: ignore
 from grpc.experimental import aio  # type: ignore
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/group_service/async_client.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/group_service/async_client.py
index 9dfc1ff14b98..37af9639ed7c 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/group_service/async_client.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/group_service/async_client.py
@@ -43,6 +43,7 @@
     OptionalRetry = Union[retries.AsyncRetry, object, None]  # type: ignore
 
 from google.api import monitored_resource_pb2  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 
 from google.cloud.monitoring_v3.services.group_service import pagers
 from google.cloud.monitoring_v3.types import group
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/group_service/client.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/group_service/client.py
index 575e6a258a26..0322be5c6730 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/group_service/client.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/group_service/client.py
@@ -48,6 +48,7 @@
     OptionalRetry = Union[retries.Retry, object, None]  # type: ignore
 
 from google.api import monitored_resource_pb2  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 
 from google.cloud.monitoring_v3.services.group_service import pagers
 from google.cloud.monitoring_v3.types import group
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/group_service/transports/base.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/group_service/transports/base.py
index 649255c8e2ac..79543044f425 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/group_service/transports/base.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/group_service/transports/base.py
@@ -22,6 +22,7 @@
 from google.api_core import retry as retries
 import google.auth  # type: ignore
 from google.auth import credentials as ga_credentials  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 from google.oauth2 import service_account  # type: ignore
 from google.protobuf import empty_pb2  # type: ignore
 
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/group_service/transports/grpc.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/group_service/transports/grpc.py
index 30376c4bbf4d..11845a0a78fd 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/group_service/transports/grpc.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/group_service/transports/grpc.py
@@ -20,6 +20,7 @@
 import google.auth  # type: ignore
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.auth.transport.grpc import SslCredentials  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 from google.protobuf import empty_pb2  # type: ignore
 import grpc  # type: ignore
 
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/group_service/transports/grpc_asyncio.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/group_service/transports/grpc_asyncio.py
index 44d8d462a1cf..e9bce9de2cf3 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/group_service/transports/grpc_asyncio.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/group_service/transports/grpc_asyncio.py
@@ -19,6 +19,7 @@
 from google.api_core import gapic_v1, grpc_helpers_async
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.auth.transport.grpc import SslCredentials  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 from google.protobuf import empty_pb2  # type: ignore
 import grpc  # type: ignore
 from grpc.experimental import aio  # type: ignore
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/metric_service/async_client.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/metric_service/async_client.py
index 9d201683354b..dae75e0d4d8d 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/metric_service/async_client.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/metric_service/async_client.py
@@ -46,6 +46,7 @@
 from google.api import launch_stage_pb2  # type: ignore
 from google.api import metric_pb2  # type: ignore
 from google.api import monitored_resource_pb2  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 
 from google.cloud.monitoring_v3.services.metric_service import pagers
 from google.cloud.monitoring_v3.types import common
@@ -283,7 +284,7 @@ async def list_monitored_resource_descriptors(
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> pagers.ListMonitoredResourceDescriptorsAsyncPager:
         r"""Lists monitored resource descriptors that match a
-        filter. This method does not require a Workspace.
+        filter.
 
         .. code-block:: python
 
@@ -415,8 +416,7 @@ async def get_monitored_resource_descriptor(
         timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> monitored_resource_pb2.MonitoredResourceDescriptor:
-        r"""Gets a single monitored resource descriptor. This
-        method does not require a Workspace.
+        r"""Gets a single monitored resource descriptor.
 
         .. code-block:: python
 
@@ -549,8 +549,7 @@ async def list_metric_descriptors(
         timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> pagers.ListMetricDescriptorsAsyncPager:
-        r"""Lists metric descriptors that match a filter. This
-        method does not require a Workspace.
+        r"""Lists metric descriptors that match a filter.
 
         .. code-block:: python
 
@@ -682,8 +681,7 @@ async def get_metric_descriptor(
         timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> metric_pb2.MetricDescriptor:
-        r"""Gets a single metric descriptor. This method does not
-        require a Workspace.
+        r"""Gets a single metric descriptor.
 
         .. code-block:: python
 
@@ -810,10 +808,10 @@ async def create_metric_descriptor(
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> metric_pb2.MetricDescriptor:
         r"""Creates a new metric descriptor. The creation is executed
-        asynchronously and callers may check the returned operation to
-        track its progress. User-created metric descriptors define
-        `custom
+        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.
 
         .. code-block:: python
 
@@ -1047,8 +1045,7 @@ async def list_time_series(
         timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> pagers.ListTimeSeriesAsyncPager:
-        r"""Lists time series that match a filter. This method
-        does not require a Workspace.
+        r"""Lists time series that match a filter.
 
         .. code-block:: python
 
@@ -1223,11 +1220,12 @@ async def create_time_series(
         timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> None:
-        r"""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.
+        r"""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>`__.
 
         .. code-block:: python
 
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/metric_service/client.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/metric_service/client.py
index 7e738b334563..3fa0cf169a7f 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/metric_service/client.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/metric_service/client.py
@@ -51,6 +51,7 @@
 from google.api import launch_stage_pb2  # type: ignore
 from google.api import metric_pb2  # type: ignore
 from google.api import monitored_resource_pb2  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 
 from google.cloud.monitoring_v3.services.metric_service import pagers
 from google.cloud.monitoring_v3.types import common
@@ -719,7 +720,7 @@ def list_monitored_resource_descriptors(
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> pagers.ListMonitoredResourceDescriptorsPager:
         r"""Lists monitored resource descriptors that match a
-        filter. This method does not require a Workspace.
+        filter.
 
         .. code-block:: python
 
@@ -846,8 +847,7 @@ def get_monitored_resource_descriptor(
         timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> monitored_resource_pb2.MonitoredResourceDescriptor:
-        r"""Gets a single monitored resource descriptor. This
-        method does not require a Workspace.
+        r"""Gets a single monitored resource descriptor.
 
         .. code-block:: python
 
@@ -975,8 +975,7 @@ def list_metric_descriptors(
         timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> pagers.ListMetricDescriptorsPager:
-        r"""Lists metric descriptors that match a filter. This
-        method does not require a Workspace.
+        r"""Lists metric descriptors that match a filter.
 
         .. code-block:: python
 
@@ -1099,8 +1098,7 @@ def get_metric_descriptor(
         timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> metric_pb2.MetricDescriptor:
-        r"""Gets a single metric descriptor. This method does not
-        require a Workspace.
+        r"""Gets a single metric descriptor.
 
         .. code-block:: python
 
@@ -1218,10 +1216,10 @@ def create_metric_descriptor(
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> metric_pb2.MetricDescriptor:
         r"""Creates a new metric descriptor. The creation is executed
-        asynchronously and callers may check the returned operation to
-        track its progress. User-created metric descriptors define
-        `custom
+        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.
 
         .. code-block:: python
 
@@ -1446,8 +1444,7 @@ def list_time_series(
         timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> pagers.ListTimeSeriesPager:
-        r"""Lists time series that match a filter. This method
-        does not require a Workspace.
+        r"""Lists time series that match a filter.
 
         .. code-block:: python
 
@@ -1613,11 +1610,12 @@ def create_time_series(
         timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> None:
-        r"""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.
+        r"""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>`__.
 
         .. code-block:: python
 
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/metric_service/transports/base.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/metric_service/transports/base.py
index b9b5029960d2..02f9dfe78f6e 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/metric_service/transports/base.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/metric_service/transports/base.py
@@ -24,6 +24,7 @@
 from google.api_core import retry as retries
 import google.auth  # type: ignore
 from google.auth import credentials as ga_credentials  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 from google.oauth2 import service_account  # type: ignore
 from google.protobuf import empty_pb2  # type: ignore
 
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/metric_service/transports/grpc.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/metric_service/transports/grpc.py
index c887e2720c71..cdf80ccebeb1 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/metric_service/transports/grpc.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/metric_service/transports/grpc.py
@@ -22,6 +22,7 @@
 import google.auth  # type: ignore
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.auth.transport.grpc import SslCredentials  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 from google.protobuf import empty_pb2  # type: ignore
 import grpc  # type: ignore
 
@@ -243,7 +244,7 @@ def list_monitored_resource_descriptors(
         descriptors method over gRPC.
 
         Lists monitored resource descriptors that match a
-        filter. This method does not require a Workspace.
+        filter.
 
         Returns:
             Callable[[~.ListMonitoredResourceDescriptorsRequest],
@@ -275,8 +276,7 @@ def get_monitored_resource_descriptor(
         r"""Return a callable for the get monitored resource
         descriptor method over gRPC.
 
-        Gets a single monitored resource descriptor. This
-        method does not require a Workspace.
+        Gets a single monitored resource descriptor.
 
         Returns:
             Callable[[~.GetMonitoredResourceDescriptorRequest],
@@ -307,8 +307,7 @@ def list_metric_descriptors(
     ]:
         r"""Return a callable for the list metric descriptors method over gRPC.
 
-        Lists metric descriptors that match a filter. This
-        method does not require a Workspace.
+        Lists metric descriptors that match a filter.
 
         Returns:
             Callable[[~.ListMetricDescriptorsRequest],
@@ -336,8 +335,7 @@ def get_metric_descriptor(
     ]:
         r"""Return a callable for the get metric descriptor method over gRPC.
 
-        Gets a single metric descriptor. This method does not
-        require a Workspace.
+        Gets a single metric descriptor.
 
         Returns:
             Callable[[~.GetMetricDescriptorRequest],
@@ -366,10 +364,10 @@ def create_metric_descriptor(
         r"""Return a callable for the create metric descriptor method over gRPC.
 
         Creates a new metric descriptor. The creation is executed
-        asynchronously and callers may check the returned operation to
-        track its progress. User-created metric descriptors define
-        `custom
+        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.
 
         Returns:
             Callable[[~.CreateMetricDescriptorRequest],
@@ -425,8 +423,7 @@ def list_time_series(
     ]:
         r"""Return a callable for the list time series method over gRPC.
 
-        Lists time series that match a filter. This method
-        does not require a Workspace.
+        Lists time series that match a filter.
 
         Returns:
             Callable[[~.ListTimeSeriesRequest],
@@ -452,11 +449,12 @@ def create_time_series(
     ) -> Callable[[metric_service.CreateTimeSeriesRequest], empty_pb2.Empty]:
         r"""Return a callable for the create time series method over gRPC.
 
-        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.
+        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>`__.
 
         Returns:
             Callable[[~.CreateTimeSeriesRequest],
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/metric_service/transports/grpc_asyncio.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/metric_service/transports/grpc_asyncio.py
index b4ef843232f2..08d70b1d0c0c 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/metric_service/transports/grpc_asyncio.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/metric_service/transports/grpc_asyncio.py
@@ -21,6 +21,7 @@
 from google.api_core import gapic_v1, grpc_helpers_async
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.auth.transport.grpc import SslCredentials  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 from google.protobuf import empty_pb2  # type: ignore
 import grpc  # type: ignore
 from grpc.experimental import aio  # type: ignore
@@ -246,7 +247,7 @@ def list_monitored_resource_descriptors(
         descriptors method over gRPC.
 
         Lists monitored resource descriptors that match a
-        filter. This method does not require a Workspace.
+        filter.
 
         Returns:
             Callable[[~.ListMonitoredResourceDescriptorsRequest],
@@ -278,8 +279,7 @@ def get_monitored_resource_descriptor(
         r"""Return a callable for the get monitored resource
         descriptor method over gRPC.
 
-        Gets a single monitored resource descriptor. This
-        method does not require a Workspace.
+        Gets a single monitored resource descriptor.
 
         Returns:
             Callable[[~.GetMonitoredResourceDescriptorRequest],
@@ -310,8 +310,7 @@ def list_metric_descriptors(
     ]:
         r"""Return a callable for the list metric descriptors method over gRPC.
 
-        Lists metric descriptors that match a filter. This
-        method does not require a Workspace.
+        Lists metric descriptors that match a filter.
 
         Returns:
             Callable[[~.ListMetricDescriptorsRequest],
@@ -340,8 +339,7 @@ def get_metric_descriptor(
     ]:
         r"""Return a callable for the get metric descriptor method over gRPC.
 
-        Gets a single metric descriptor. This method does not
-        require a Workspace.
+        Gets a single metric descriptor.
 
         Returns:
             Callable[[~.GetMetricDescriptorRequest],
@@ -371,10 +369,10 @@ def create_metric_descriptor(
         r"""Return a callable for the create metric descriptor method over gRPC.
 
         Creates a new metric descriptor. The creation is executed
-        asynchronously and callers may check the returned operation to
-        track its progress. User-created metric descriptors define
-        `custom
+        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.
 
         Returns:
             Callable[[~.CreateMetricDescriptorRequest],
@@ -433,8 +431,7 @@ def list_time_series(
     ]:
         r"""Return a callable for the list time series method over gRPC.
 
-        Lists time series that match a filter. This method
-        does not require a Workspace.
+        Lists time series that match a filter.
 
         Returns:
             Callable[[~.ListTimeSeriesRequest],
@@ -460,11 +457,12 @@ def create_time_series(
     ) -> Callable[[metric_service.CreateTimeSeriesRequest], Awaitable[empty_pb2.Empty]]:
         r"""Return a callable for the create time series method over gRPC.
 
-        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.
+        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>`__.
 
         Returns:
             Callable[[~.CreateTimeSeriesRequest],
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/notification_channel_service/async_client.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/notification_channel_service/async_client.py
index 8a92f8d50b93..58627988827b 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/notification_channel_service/async_client.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/notification_channel_service/async_client.py
@@ -44,6 +44,7 @@
 
 from google.api import label_pb2  # type: ignore
 from google.api import launch_stage_pb2  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 from google.protobuf import field_mask_pb2  # type: ignore
 from google.protobuf import timestamp_pb2  # type: ignore
 from google.protobuf import wrappers_pb2  # type: ignore
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/notification_channel_service/client.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/notification_channel_service/client.py
index 3c24fbe8b1ce..4de884362b19 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/notification_channel_service/client.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/notification_channel_service/client.py
@@ -49,6 +49,7 @@
 
 from google.api import label_pb2  # type: ignore
 from google.api import launch_stage_pb2  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 from google.protobuf import field_mask_pb2  # type: ignore
 from google.protobuf import timestamp_pb2  # type: ignore
 from google.protobuf import wrappers_pb2  # type: ignore
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/notification_channel_service/transports/base.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/notification_channel_service/transports/base.py
index 17e8d77f287c..798de20c5d3f 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/notification_channel_service/transports/base.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/notification_channel_service/transports/base.py
@@ -22,6 +22,7 @@
 from google.api_core import retry as retries
 import google.auth  # type: ignore
 from google.auth import credentials as ga_credentials  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 from google.oauth2 import service_account  # type: ignore
 from google.protobuf import empty_pb2  # type: ignore
 
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/notification_channel_service/transports/grpc.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/notification_channel_service/transports/grpc.py
index c5781b30c1ed..94bc67deb353 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/notification_channel_service/transports/grpc.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/notification_channel_service/transports/grpc.py
@@ -20,6 +20,7 @@
 import google.auth  # type: ignore
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.auth.transport.grpc import SslCredentials  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 from google.protobuf import empty_pb2  # type: ignore
 import grpc  # type: ignore
 
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/notification_channel_service/transports/grpc_asyncio.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/notification_channel_service/transports/grpc_asyncio.py
index fe919e3c8fb4..5f55acdf4c28 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/notification_channel_service/transports/grpc_asyncio.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/notification_channel_service/transports/grpc_asyncio.py
@@ -19,6 +19,7 @@
 from google.api_core import gapic_v1, grpc_helpers_async
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.auth.transport.grpc import SslCredentials  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 from google.protobuf import empty_pb2  # type: ignore
 import grpc  # type: ignore
 from grpc.experimental import aio  # type: ignore
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/query_service/async_client.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/query_service/async_client.py
index 65a54b4bafec..7db0ffbd3bca 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/query_service/async_client.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/query_service/async_client.py
@@ -42,6 +42,8 @@
 except AttributeError:  # pragma: NO COVER
     OptionalRetry = Union[retries.AsyncRetry, object, None]  # type: ignore
 
+from google.longrunning import operations_pb2  # type: ignore
+
 from google.cloud.monitoring_v3.services.query_service import pagers
 from google.cloud.monitoring_v3.types import metric, metric_service
 
@@ -52,7 +54,7 @@
 
 class QueryServiceAsyncClient:
     """The QueryService API is used to manage time series data in
-    Stackdriver Monitoring. Time series data is a collection of data
+    Cloud Monitoring. Time series data is a collection of data
     points that describes the time-varying values of a metric.
     """
 
@@ -258,7 +260,6 @@ async def query_time_series(
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> pagers.QueryTimeSeriesAsyncPager:
         r"""Queries time series using Monitoring Query Language.
-        This method does not require a Workspace.
 
         .. code-block:: python
 
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/query_service/client.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/query_service/client.py
index d8a5fd6a02a4..2d720a33928d 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/query_service/client.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/query_service/client.py
@@ -47,6 +47,8 @@
 except AttributeError:  # pragma: NO COVER
     OptionalRetry = Union[retries.Retry, object, None]  # type: ignore
 
+from google.longrunning import operations_pb2  # type: ignore
+
 from google.cloud.monitoring_v3.services.query_service import pagers
 from google.cloud.monitoring_v3.types import metric, metric_service
 
@@ -91,7 +93,7 @@ def get_transport_class(
 
 class QueryServiceClient(metaclass=QueryServiceClientMeta):
     """The QueryService API is used to manage time series data in
-    Stackdriver Monitoring. Time series data is a collection of data
+    Cloud Monitoring. Time series data is a collection of data
     points that describes the time-varying values of a metric.
     """
 
@@ -648,7 +650,6 @@ def query_time_series(
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> pagers.QueryTimeSeriesPager:
         r"""Queries time series using Monitoring Query Language.
-        This method does not require a Workspace.
 
         .. code-block:: python
 
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/query_service/transports/base.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/query_service/transports/base.py
index cbde3aa81190..3942db8df8dc 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/query_service/transports/base.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/query_service/transports/base.py
@@ -22,6 +22,7 @@
 from google.api_core import retry as retries
 import google.auth  # type: ignore
 from google.auth import credentials as ga_credentials  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 from google.oauth2 import service_account  # type: ignore
 
 from google.cloud.monitoring_v3 import gapic_version as package_version
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/query_service/transports/grpc.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/query_service/transports/grpc.py
index 43b3f8fb762b..708c0eb8318b 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/query_service/transports/grpc.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/query_service/transports/grpc.py
@@ -20,6 +20,7 @@
 import google.auth  # type: ignore
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.auth.transport.grpc import SslCredentials  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 import grpc  # type: ignore
 
 from google.cloud.monitoring_v3.types import metric_service
@@ -31,7 +32,7 @@ class QueryServiceGrpcTransport(QueryServiceTransport):
     """gRPC backend transport for QueryService.
 
     The QueryService API is used to manage time series data in
-    Stackdriver Monitoring. Time series data is a collection of data
+    Cloud Monitoring. Time series data is a collection of data
     points that describes the time-varying values of a metric.
 
     This class defines the same methods as the primary client, so the
@@ -239,7 +240,6 @@ def query_time_series(
         r"""Return a callable for the query time series method over gRPC.
 
         Queries time series using Monitoring Query Language.
-        This method does not require a Workspace.
 
         Returns:
             Callable[[~.QueryTimeSeriesRequest],
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/query_service/transports/grpc_asyncio.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/query_service/transports/grpc_asyncio.py
index 14b5a621b560..c1ad6cad20a6 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/query_service/transports/grpc_asyncio.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/query_service/transports/grpc_asyncio.py
@@ -19,6 +19,7 @@
 from google.api_core import gapic_v1, grpc_helpers_async
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.auth.transport.grpc import SslCredentials  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 import grpc  # type: ignore
 from grpc.experimental import aio  # type: ignore
 
@@ -32,7 +33,7 @@ class QueryServiceGrpcAsyncIOTransport(QueryServiceTransport):
     """gRPC AsyncIO backend transport for QueryService.
 
     The QueryService API is used to manage time series data in
-    Stackdriver Monitoring. Time series data is a collection of data
+    Cloud Monitoring. Time series data is a collection of data
     points that describes the time-varying values of a metric.
 
     This class defines the same methods as the primary client, so the
@@ -243,7 +244,6 @@ def query_time_series(
         r"""Return a callable for the query time series method over gRPC.
 
         Queries time series using Monitoring Query Language.
-        This method does not require a Workspace.
 
         Returns:
             Callable[[~.QueryTimeSeriesRequest],
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/service_monitoring_service/async_client.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/service_monitoring_service/async_client.py
index ec91bcc922ad..57f6e1907282 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/service_monitoring_service/async_client.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/service_monitoring_service/async_client.py
@@ -42,6 +42,7 @@
 except AttributeError:  # pragma: NO COVER
     OptionalRetry = Union[retries.AsyncRetry, object, None]  # type: ignore
 
+from google.longrunning import operations_pb2  # type: ignore
 from google.protobuf import duration_pb2  # type: ignore
 from google.type import calendar_period_pb2  # type: ignore
 
@@ -57,9 +58,10 @@
 
 class ServiceMonitoringServiceAsyncClient:
     """The Cloud Monitoring Service-Oriented Monitoring API has endpoints
-    for managing and querying aspects of a workspace's services. These
-    include the ``Service``'s monitored resources, its Service-Level
-    Objectives, and a taxonomy of categorized Health Metrics.
+    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.
     """
 
     _client: ServiceMonitoringServiceClient
@@ -318,7 +320,7 @@ async def sample_create_service():
             parent (:class:`str`):
                 Required. Resource
                 `name <https://cloud.google.com/monitoring/api/v3#project_name>`__
-                of the parent workspace. The format is:
+                of the parent Metrics Scope. The format is:
 
                 ::
 
@@ -525,7 +527,7 @@ async def list_services(
         timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> pagers.ListServicesAsyncPager:
-        r"""List ``Service``\ s for this workspace.
+        r"""List ``Service``\ s for this Metrics Scope.
 
         .. code-block:: python
 
@@ -561,7 +563,7 @@ async def sample_list_services():
                 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 Workspace. The formats are:
+                or a Monitoring Metrics Scope. The formats are:
 
                 ::
 
@@ -1169,8 +1171,8 @@ async def sample_list_service_level_objectives():
                 The request object. The ``ListServiceLevelObjectives`` request.
             parent (:class:`str`):
                 Required. Resource name of the parent containing the
-                listed SLOs, either a project or a Monitoring Workspace.
-                The formats are:
+                listed SLOs, either a project or a Monitoring Metrics
+                Scope. The formats are:
 
                 ::
 
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/service_monitoring_service/client.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/service_monitoring_service/client.py
index 2329e5687077..74d968061999 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/service_monitoring_service/client.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/service_monitoring_service/client.py
@@ -47,6 +47,7 @@
 except AttributeError:  # pragma: NO COVER
     OptionalRetry = Union[retries.Retry, object, None]  # type: ignore
 
+from google.longrunning import operations_pb2  # type: ignore
 from google.protobuf import duration_pb2  # type: ignore
 from google.type import calendar_period_pb2  # type: ignore
 
@@ -98,9 +99,10 @@ def get_transport_class(
 
 class ServiceMonitoringServiceClient(metaclass=ServiceMonitoringServiceClientMeta):
     """The Cloud Monitoring Service-Oriented Monitoring API has endpoints
-    for managing and querying aspects of a workspace's services. These
-    include the ``Service``'s monitored resources, its Service-Level
-    Objectives, and a taxonomy of categorized Health Metrics.
+    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.
     """
 
     @staticmethod
@@ -737,7 +739,7 @@ def sample_create_service():
             parent (str):
                 Required. Resource
                 `name <https://cloud.google.com/monitoring/api/v3#project_name>`__
-                of the parent workspace. The format is:
+                of the parent Metrics Scope. The format is:
 
                 ::
 
@@ -935,7 +937,7 @@ def list_services(
         timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> pagers.ListServicesPager:
-        r"""List ``Service``\ s for this workspace.
+        r"""List ``Service``\ s for this Metrics Scope.
 
         .. code-block:: python
 
@@ -971,7 +973,7 @@ def sample_list_services():
                 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 Workspace. The formats are:
+                or a Monitoring Metrics Scope. The formats are:
 
                 ::
 
@@ -1556,8 +1558,8 @@ def sample_list_service_level_objectives():
                 The request object. The ``ListServiceLevelObjectives`` request.
             parent (str):
                 Required. Resource name of the parent containing the
-                listed SLOs, either a project or a Monitoring Workspace.
-                The formats are:
+                listed SLOs, either a project or a Monitoring Metrics
+                Scope. The formats are:
 
                 ::
 
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/service_monitoring_service/transports/base.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/service_monitoring_service/transports/base.py
index 83ed964d4c21..d5b45945bcb4 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/service_monitoring_service/transports/base.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/service_monitoring_service/transports/base.py
@@ -22,6 +22,7 @@
 from google.api_core import retry as retries
 import google.auth  # type: ignore
 from google.auth import credentials as ga_credentials  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 from google.oauth2 import service_account  # type: ignore
 from google.protobuf import empty_pb2  # type: ignore
 
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/service_monitoring_service/transports/grpc.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/service_monitoring_service/transports/grpc.py
index cebb17e73459..a0d0c57b14f7 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/service_monitoring_service/transports/grpc.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/service_monitoring_service/transports/grpc.py
@@ -20,6 +20,7 @@
 import google.auth  # type: ignore
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.auth.transport.grpc import SslCredentials  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 from google.protobuf import empty_pb2  # type: ignore
 import grpc  # type: ignore
 
@@ -34,9 +35,10 @@ class ServiceMonitoringServiceGrpcTransport(ServiceMonitoringServiceTransport):
     """gRPC backend transport for ServiceMonitoringService.
 
     The Cloud Monitoring Service-Oriented Monitoring API has endpoints
-    for managing and querying aspects of a workspace's services. These
-    include the ``Service``'s monitored resources, its Service-Level
-    Objectives, and a taxonomy of categorized Health Metrics.
+    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 defines the same methods as the primary client, so the
     primary client can load the underlying transport implementation
@@ -294,7 +296,7 @@ def list_services(
     ]:
         r"""Return a callable for the list services method over gRPC.
 
-        List ``Service``\ s for this workspace.
+        List ``Service``\ s for this Metrics Scope.
 
         Returns:
             Callable[[~.ListServicesRequest],
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/service_monitoring_service/transports/grpc_asyncio.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/service_monitoring_service/transports/grpc_asyncio.py
index 24c501da824d..abcb4ce1e240 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/service_monitoring_service/transports/grpc_asyncio.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/service_monitoring_service/transports/grpc_asyncio.py
@@ -19,6 +19,7 @@
 from google.api_core import gapic_v1, grpc_helpers_async
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.auth.transport.grpc import SslCredentials  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 from google.protobuf import empty_pb2  # type: ignore
 import grpc  # type: ignore
 from grpc.experimental import aio  # type: ignore
@@ -35,9 +36,10 @@ class ServiceMonitoringServiceGrpcAsyncIOTransport(ServiceMonitoringServiceTrans
     """gRPC AsyncIO backend transport for ServiceMonitoringService.
 
     The Cloud Monitoring Service-Oriented Monitoring API has endpoints
-    for managing and querying aspects of a workspace's services. These
-    include the ``Service``'s monitored resources, its Service-Level
-    Objectives, and a taxonomy of categorized Health Metrics.
+    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 defines the same methods as the primary client, so the
     primary client can load the underlying transport implementation
@@ -300,7 +302,7 @@ def list_services(
     ]:
         r"""Return a callable for the list services method over gRPC.
 
-        List ``Service``\ s for this workspace.
+        List ``Service``\ s for this Metrics Scope.
 
         Returns:
             Callable[[~.ListServicesRequest],
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/snooze_service/async_client.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/snooze_service/async_client.py
index 6ccc59ed40e0..82fd548edcf9 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/snooze_service/async_client.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/snooze_service/async_client.py
@@ -42,6 +42,7 @@
 except AttributeError:  # pragma: NO COVER
     OptionalRetry = Union[retries.AsyncRetry, object, None]  # type: ignore
 
+from google.longrunning import operations_pb2  # type: ignore
 from google.protobuf import field_mask_pb2  # type: ignore
 
 from google.cloud.monitoring_v3.services.snooze_service import pagers
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/snooze_service/client.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/snooze_service/client.py
index 14b97c99cf72..2fb6007af3cc 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/snooze_service/client.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/snooze_service/client.py
@@ -47,6 +47,7 @@
 except AttributeError:  # pragma: NO COVER
     OptionalRetry = Union[retries.Retry, object, None]  # type: ignore
 
+from google.longrunning import operations_pb2  # type: ignore
 from google.protobuf import field_mask_pb2  # type: ignore
 
 from google.cloud.monitoring_v3.services.snooze_service import pagers
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/snooze_service/transports/base.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/snooze_service/transports/base.py
index 83630525e4d7..7cf87672f280 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/snooze_service/transports/base.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/snooze_service/transports/base.py
@@ -22,6 +22,7 @@
 from google.api_core import retry as retries
 import google.auth  # type: ignore
 from google.auth import credentials as ga_credentials  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 from google.oauth2 import service_account  # type: ignore
 
 from google.cloud.monitoring_v3 import gapic_version as package_version
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/snooze_service/transports/grpc.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/snooze_service/transports/grpc.py
index 47f6e6e9a1fe..6e25674af203 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/snooze_service/transports/grpc.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/snooze_service/transports/grpc.py
@@ -20,6 +20,7 @@
 import google.auth  # type: ignore
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.auth.transport.grpc import SslCredentials  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 import grpc  # type: ignore
 
 from google.cloud.monitoring_v3.types import snooze
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/snooze_service/transports/grpc_asyncio.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/snooze_service/transports/grpc_asyncio.py
index 2d34384c3f76..b74cd5f141d2 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/snooze_service/transports/grpc_asyncio.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/snooze_service/transports/grpc_asyncio.py
@@ -19,6 +19,7 @@
 from google.api_core import gapic_v1, grpc_helpers_async
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.auth.transport.grpc import SslCredentials  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 import grpc  # type: ignore
 from grpc.experimental import aio  # type: ignore
 
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/uptime_check_service/async_client.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/uptime_check_service/async_client.py
index 046f9bc0d96b..636273a72331 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/uptime_check_service/async_client.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/uptime_check_service/async_client.py
@@ -43,6 +43,7 @@
     OptionalRetry = Union[retries.AsyncRetry, object, None]  # type: ignore
 
 from google.api import monitored_resource_pb2  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 from google.protobuf import duration_pb2  # type: ignore
 
 from google.cloud.monitoring_v3.services.uptime_check_service import pagers
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/uptime_check_service/client.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/uptime_check_service/client.py
index 44c7c8b2d8b3..7d6039afe046 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/uptime_check_service/client.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/uptime_check_service/client.py
@@ -48,6 +48,7 @@
     OptionalRetry = Union[retries.Retry, object, None]  # type: ignore
 
 from google.api import monitored_resource_pb2  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 from google.protobuf import duration_pb2  # type: ignore
 
 from google.cloud.monitoring_v3.services.uptime_check_service import pagers
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/uptime_check_service/transports/base.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/uptime_check_service/transports/base.py
index ce1f19b0d56d..953a2648a434 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/uptime_check_service/transports/base.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/uptime_check_service/transports/base.py
@@ -22,6 +22,7 @@
 from google.api_core import retry as retries
 import google.auth  # type: ignore
 from google.auth import credentials as ga_credentials  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 from google.oauth2 import service_account  # type: ignore
 from google.protobuf import empty_pb2  # type: ignore
 
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/uptime_check_service/transports/grpc.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/uptime_check_service/transports/grpc.py
index e99bdf265600..96df190f2c49 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/uptime_check_service/transports/grpc.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/uptime_check_service/transports/grpc.py
@@ -20,6 +20,7 @@
 import google.auth  # type: ignore
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.auth.transport.grpc import SslCredentials  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 from google.protobuf import empty_pb2  # type: ignore
 import grpc  # type: ignore
 
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/uptime_check_service/transports/grpc_asyncio.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/uptime_check_service/transports/grpc_asyncio.py
index 1f6ec0f1a881..954b4ef391c3 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/uptime_check_service/transports/grpc_asyncio.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/services/uptime_check_service/transports/grpc_asyncio.py
@@ -19,6 +19,7 @@
 from google.api_core import gapic_v1, grpc_helpers_async
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.auth.transport.grpc import SslCredentials  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 from google.protobuf import empty_pb2  # type: ignore
 import grpc  # type: ignore
 from grpc.experimental import aio  # type: ignore
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/alert.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/alert.py
index da2cec78fd5d..867e60d83e07 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/alert.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/alert.py
@@ -210,8 +210,8 @@ class Severity(proto.Enum):
         WARNING = 3
 
     class Documentation(proto.Message):
-        r"""A content string and a MIME type that describes the content
-        string's format.
+        r"""Documentation that is included in the notifications and
+        incidents pertaining to this policy.
 
         Attributes:
             content (str):
@@ -491,9 +491,10 @@ class MetricThreshold(proto.Message):
                     ratio, if ``denominator_filter`` and
                     ``denominator_aggregations`` are specified.
                 evaluation_missing_data (google.cloud.monitoring_v3.types.AlertPolicy.Condition.EvaluationMissingData):
-                    A condition control that determines how
-                    metric-threshold conditions are evaluated when
-                    data stops arriving.
+                    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.
             """
 
             class ForecastOptions(proto.Message):
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/common.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/common.py
index c3d85e3ad834..e7292555882b 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/common.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/common.py
@@ -70,7 +70,8 @@ class ComparisonType(proto.Enum):
 
 
 class ServiceTier(proto.Enum):
-    r"""The tier of service for a Workspace. Please see the `service tiers
+    r"""The tier of service for a Metrics Scope. Please see the `service
+    tiers
     documentation <https://cloud.google.com/monitoring/workspaces/tiers>`__
     for more details.
 
@@ -79,18 +80,18 @@ class ServiceTier(proto.Enum):
             An invalid sentinel value, used to indicate
             that a tier has not been provided explicitly.
         SERVICE_TIER_BASIC (1):
-            The Stackdriver Basic tier, a free tier of service that
+            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>`__.
         SERVICE_TIER_PREMIUM (2):
-            The Stackdriver Premium tier, a higher, more expensive tier
-            of service that provides access to all Stackdriver features,
-            lets you use Stackdriver with AWS accounts, and has a larger
-            allotments for logs and metrics. For more details, see `the
-            service tiers
+            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>`__.
     """
     _pb_options = {"deprecated": True}
@@ -165,42 +166,45 @@ class TypedValue(proto.Message):
 
 
 class TimeInterval(proto.Message):
-    r"""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. When writing data points, the start time must not be more than
-    25 hours in the past and the end time must not be 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.
+    r"""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.
 
     Attributes:
         end_time (google.protobuf.timestamp_pb2.Timestamp):
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/metric_service.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/metric_service.py
index bd32fe21aa74..0835c4f8dc33 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/metric_service.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/metric_service.py
@@ -176,8 +176,10 @@ class ListMetricDescriptorsRequest(proto.Message):
 
                 metric.type = starts_with("custom.googleapis.com/")
         page_size (int):
-            A positive number that is the maximum number
-            of results to return.
+            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.
         page_token (str):
             If this field is not empty then it must contain the
             ``nextPageToken`` value returned by a previous call to this
@@ -368,7 +370,7 @@ class ListTimeSeriesRequest(proto.Message):
     """
 
     class TimeSeriesView(proto.Enum):
-        r"""Controls which fields are returned by ``ListTimeSeries``.
+        r"""Controls which fields are returned by ``ListTimeSeries*``.
 
         Values:
             FULL (0):
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/service_service.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/service_service.py
index 2ac8e2d881fc..60b4e4caf529 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/service_service.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/service_service.py
@@ -48,7 +48,7 @@ class CreateServiceRequest(proto.Message):
         parent (str):
             Required. Resource
             `name <https://cloud.google.com/monitoring/api/v3#project_name>`__
-            of the parent workspace. The format is:
+            of the parent Metrics Scope. The format is:
 
             ::
 
@@ -102,7 +102,7 @@ class ListServicesRequest(proto.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 Workspace. The formats are:
+            or a Monitoring Metrics Scope. The formats are:
 
             ::
 
@@ -110,28 +110,28 @@ class ListServicesRequest(proto.Message):
                 workspaces/[HOST_PROJECT_ID_OR_NUMBER]
         filter (str):
             A filter specifying what ``Service``\ s to return. The
-            filter currently supports the following fields:
+            filter supports filtering on a particular service-identifier
+            type or one of its attributes.
 
-            ::
-
-                - `identifier_case`
-                - `app_engine.module_id`
-                - `cloud_endpoints.service` (reserved for future use)
-                - `mesh_istio.mesh_uid`
-                - `mesh_istio.service_namespace`
-                - `mesh_istio.service_name`
-                - `cluster_istio.location` (deprecated)
-                - `cluster_istio.cluster_name` (deprecated)
-                - `cluster_istio.service_namespace` (deprecated)
-                - `cluster_istio.service_name` (deprecated)
-
-            ``identifier_case`` refers to which option in the identifier
-            oneof is populated. For example, the filter
+            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 are
-            "CUSTOM", "APP_ENGINE", "MESH_ISTIO", plus "CLUSTER_ISTIO"
-            (deprecated) and "CLOUD_ENDPOINTS" (reserved for future
-            use).
+            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
         page_size (int):
             A non-negative number that is the maximum
             number of results to return. When 0, use default
@@ -246,7 +246,7 @@ class CreateServiceLevelObjectiveRequest(proto.Message):
         service_level_objective_id (str):
             Optional. The ServiceLevelObjective id to use for this
             ServiceLevelObjective. If omitted, an id will be generated
-            instead. Must match the pattern ``[a-z0-9\-]+``
+            instead. Must match the pattern ``^[a-zA-Z0-9-_:.]+$``
         service_level_objective (google.cloud.monitoring_v3.types.ServiceLevelObjective):
             Required. The ``ServiceLevelObjective`` to create. The
             provided ``name`` will be respected if no
@@ -305,7 +305,7 @@ class ListServiceLevelObjectivesRequest(proto.Message):
     Attributes:
         parent (str):
             Required. Resource name of the parent containing the listed
-            SLOs, either a project or a Monitoring Workspace. The
+            SLOs, either a project or a Monitoring Metrics Scope. The
             formats are:
 
             ::
diff --git a/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_alert_policy_service.py b/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_alert_policy_service.py
index 45f71bec85a3..2b44ec0ec6d3 100644
--- a/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_alert_policy_service.py
+++ b/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_alert_policy_service.py
@@ -30,6 +30,7 @@
 import google.auth
 from google.auth import credentials as ga_credentials
 from google.auth.exceptions import MutualTLSChannelError
+from google.longrunning import operations_pb2  # type: ignore
 from google.oauth2 import service_account
 from google.protobuf import any_pb2  # type: ignore
 from google.protobuf import duration_pb2  # type: ignore
diff --git a/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_group_service.py b/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_group_service.py
index dd4414db9d48..db52fd62c4a9 100644
--- a/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_group_service.py
+++ b/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_group_service.py
@@ -31,6 +31,7 @@
 import google.auth
 from google.auth import credentials as ga_credentials
 from google.auth.exceptions import MutualTLSChannelError
+from google.longrunning import operations_pb2  # type: ignore
 from google.oauth2 import service_account
 from google.protobuf import timestamp_pb2  # type: ignore
 import grpc
diff --git a/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_metric_service.py b/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_metric_service.py
index 0f25cdf611a8..e3685c8259b8 100644
--- a/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_metric_service.py
+++ b/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_metric_service.py
@@ -35,6 +35,7 @@
 import google.auth
 from google.auth import credentials as ga_credentials
 from google.auth.exceptions import MutualTLSChannelError
+from google.longrunning import operations_pb2  # type: ignore
 from google.oauth2 import service_account
 from google.protobuf import any_pb2  # type: ignore
 from google.protobuf import duration_pb2  # type: ignore
diff --git a/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_notification_channel_service.py b/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_notification_channel_service.py
index 7c7269411962..80ea63ba3772 100644
--- a/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_notification_channel_service.py
+++ b/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_notification_channel_service.py
@@ -32,6 +32,7 @@
 import google.auth
 from google.auth import credentials as ga_credentials
 from google.auth.exceptions import MutualTLSChannelError
+from google.longrunning import operations_pb2  # type: ignore
 from google.oauth2 import service_account
 from google.protobuf import field_mask_pb2  # type: ignore
 from google.protobuf import timestamp_pb2  # type: ignore
diff --git a/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_query_service.py b/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_query_service.py
index b22f2e326492..96d9b8000cd6 100644
--- a/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_query_service.py
+++ b/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_query_service.py
@@ -30,6 +30,7 @@
 import google.auth
 from google.auth import credentials as ga_credentials
 from google.auth.exceptions import MutualTLSChannelError
+from google.longrunning import operations_pb2  # type: ignore
 from google.oauth2 import service_account
 import grpc
 from grpc.experimental import aio
diff --git a/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_service_monitoring_service.py b/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_service_monitoring_service.py
index 02c72b1bbb1f..26aa5d6f0451 100644
--- a/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_service_monitoring_service.py
+++ b/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_service_monitoring_service.py
@@ -30,6 +30,7 @@
 import google.auth
 from google.auth import credentials as ga_credentials
 from google.auth.exceptions import MutualTLSChannelError
+from google.longrunning import operations_pb2  # type: ignore
 from google.oauth2 import service_account
 from google.protobuf import duration_pb2  # type: ignore
 from google.protobuf import field_mask_pb2  # type: ignore
diff --git a/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_snooze_service.py b/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_snooze_service.py
index c327420198f1..1e68a097241e 100644
--- a/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_snooze_service.py
+++ b/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_snooze_service.py
@@ -30,6 +30,7 @@
 import google.auth
 from google.auth import credentials as ga_credentials
 from google.auth.exceptions import MutualTLSChannelError
+from google.longrunning import operations_pb2  # type: ignore
 from google.oauth2 import service_account
 from google.protobuf import field_mask_pb2  # type: ignore
 from google.protobuf import timestamp_pb2  # type: ignore
diff --git a/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_uptime_check_service.py b/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_uptime_check_service.py
index 4b009adaa6ac..5353840b6ae2 100644
--- a/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_uptime_check_service.py
+++ b/packages/google-cloud-monitoring/tests/unit/gapic/monitoring_v3/test_uptime_check_service.py
@@ -31,6 +31,7 @@
 import google.auth
 from google.auth import credentials as ga_credentials
 from google.auth.exceptions import MutualTLSChannelError
+from google.longrunning import operations_pb2  # type: ignore
 from google.oauth2 import service_account
 from google.protobuf import duration_pb2  # type: ignore
 from google.protobuf import field_mask_pb2  # type: ignore