diff --git a/google/cloud/networkconnectivity_v1/types/common.py b/google/cloud/networkconnectivity_v1/types/common.py
index bab5daa..d8cd5cb 100644
--- a/google/cloud/networkconnectivity_v1/types/common.py
+++ b/google/cloud/networkconnectivity_v1/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
 
 from google.protobuf import timestamp_pb2  # type: ignore
diff --git a/google/cloud/networkconnectivity_v1/types/hub.py b/google/cloud/networkconnectivity_v1/types/hub.py
index e153651..a828118 100644
--- a/google/cloud/networkconnectivity_v1/types/hub.py
+++ b/google/cloud/networkconnectivity_v1/types/hub.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
 
 from google.protobuf import field_mask_pb2  # type: ignore
diff --git a/google/cloud/networkconnectivity_v1alpha1/types/common.py b/google/cloud/networkconnectivity_v1alpha1/types/common.py
index d937fb2..cf2ca30 100644
--- a/google/cloud/networkconnectivity_v1alpha1/types/common.py
+++ b/google/cloud/networkconnectivity_v1alpha1/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
 
 from google.protobuf import timestamp_pb2  # type: ignore
diff --git a/google/cloud/networkconnectivity_v1alpha1/types/hub.py b/google/cloud/networkconnectivity_v1alpha1/types/hub.py
index 7433faa..9904d5a 100644
--- a/google/cloud/networkconnectivity_v1alpha1/types/hub.py
+++ b/google/cloud/networkconnectivity_v1alpha1/types/hub.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
 
 from google.protobuf import field_mask_pb2  # type: ignore