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 1cd02153d1bc..9c969586157e 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
@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+from __future__ import annotations
+
 from typing import MutableMapping, MutableSequence
 
 import proto  # type: ignore
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/alert_service.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/alert_service.py
index bc92e77e9f4b..9f634c853ee7 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/alert_service.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/alert_service.py
@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+from __future__ import annotations
+
 from typing import MutableMapping, MutableSequence
 
 import proto  # type: ignore
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 e36368201700..fa6715b6bb7e 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
@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+from __future__ import annotations
+
 from typing import MutableMapping, MutableSequence
 
 import proto  # type: ignore
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/dropped_labels.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/dropped_labels.py
index 8c35da2d92fc..460d8b3fd652 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/dropped_labels.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/dropped_labels.py
@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+from __future__ import annotations
+
 from typing import MutableMapping, MutableSequence
 
 import proto  # type: ignore
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/group.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/group.py
index 27136380d690..bd09098ca395 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/group.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/group.py
@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+from __future__ import annotations
+
 from typing import MutableMapping, MutableSequence
 
 import proto  # type: ignore
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/group_service.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/group_service.py
index c7551099d0b5..0305beecd85a 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/group_service.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/group_service.py
@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+from __future__ import annotations
+
 from typing import MutableMapping, MutableSequence
 
 import proto  # type: ignore
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/metric.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/metric.py
index 50690db7c5d9..0fe120fbe769 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/metric.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/metric.py
@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+from __future__ import annotations
+
 from typing import MutableMapping, MutableSequence
 
 import proto  # type: ignore
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 dfdbac61fd8f..e7d49919eb29 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
@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+from __future__ import annotations
+
 from typing import MutableMapping, MutableSequence
 
 import proto  # type: ignore
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/mutation_record.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/mutation_record.py
index 1a56ac68cdde..faf306d000b3 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/mutation_record.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/mutation_record.py
@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+from __future__ import annotations
+
 from typing import MutableMapping, MutableSequence
 
 import proto  # type: ignore
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/notification.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/notification.py
index f3b5bf5097fc..c283cd3a16e5 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/notification.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/notification.py
@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+from __future__ import annotations
+
 from typing import MutableMapping, MutableSequence
 
 import proto  # type: ignore
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/notification_service.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/notification_service.py
index 29cc64a16155..1bbe4c192700 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/notification_service.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/notification_service.py
@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+from __future__ import annotations
+
 from typing import MutableMapping, MutableSequence
 
 import proto  # type: ignore
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/query_service.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/query_service.py
index f8dea35862aa..6fea046e1771 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/query_service.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/query_service.py
@@ -13,6 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+import proto  # type: ignore
 
 
 __protobuf__ = proto.module(
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/service.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/service.py
index fc80b402f606..51a0282d2541 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/service.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/service.py
@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+from __future__ import annotations
+
 from typing import MutableMapping, MutableSequence
 
 import proto  # type: ignore
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 b86a0cfef1c9..5e04832f1270 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
@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+from __future__ import annotations
+
 from typing import MutableMapping, MutableSequence
 
 import proto  # type: ignore
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/snooze.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/snooze.py
index eb5fd0120700..58ae9fd8f99a 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/snooze.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/snooze.py
@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+from __future__ import annotations
+
 from typing import MutableMapping, MutableSequence
 
 import proto  # type: ignore
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/snooze_service.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/snooze_service.py
index be0cc0216016..7cba4953848e 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/snooze_service.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/snooze_service.py
@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+from __future__ import annotations
+
 from typing import MutableMapping, MutableSequence
 
 import proto  # type: ignore
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/span_context.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/span_context.py
index 173bbf0fa19d..77601b3c29d9 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/span_context.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/span_context.py
@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+from __future__ import annotations
+
 from typing import MutableMapping, MutableSequence
 
 import proto  # type: ignore
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/uptime.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/uptime.py
index 088dee08d456..1adf77afc934 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/uptime.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/uptime.py
@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+from __future__ import annotations
+
 from typing import MutableMapping, MutableSequence
 
 import proto  # type: ignore
diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/uptime_service.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/uptime_service.py
index e433b8dfdcfb..11e44bb667f3 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/uptime_service.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/types/uptime_service.py
@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+from __future__ import annotations
+
 from typing import MutableMapping, MutableSequence
 
 import proto  # type: ignore