chore: use gapic-generator-python 1.0.0 (#390)

* chore: use gapic-generator-python 1.0.0

PiperOrigin-RevId: 451250442

Source-Link: googleapis/googleapis@cca5e81

Source-Link: googleapis/googleapis-gen@0b219da
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* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

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packages/google-cloud-automl/tests/unit/gapic/automl_v1/test_auto_ml.py

@@ -14,7 +14,13 @@
 # limitations under the License.
 #
 import os
-import mock
+
+# try/except added for compatibility with python < 3.8
+try:
+    from unittest import mock
+    from unittest.mock import AsyncMock
+except ImportError:
+    import mock
 
 import grpc
 from grpc.experimental import aio

packages/google-cloud-automl/tests/unit/gapic/automl_v1/test_prediction_service.py

@@ -14,7 +14,13 @@
 # limitations under the License.
 #
 import os
-import mock
+
+# try/except added for compatibility with python < 3.8
+try:
+    from unittest import mock
+    from unittest.mock import AsyncMock
+except ImportError:
+    import mock
 
 import grpc
 from grpc.experimental import aio

packages/google-cloud-automl/tests/unit/gapic/automl_v1beta1/test_auto_ml.py

@@ -14,7 +14,13 @@
 # limitations under the License.
 #
 import os
-import mock
+
+# try/except added for compatibility with python < 3.8
+try:
+    from unittest import mock
+    from unittest.mock import AsyncMock
+except ImportError:
+    import mock
 
 import grpc
 from grpc.experimental import aio

packages/google-cloud-automl/tests/unit/gapic/automl_v1beta1/test_prediction_service.py

@@ -14,7 +14,13 @@
 # limitations under the License.
 #
 import os
-import mock
+
+# try/except added for compatibility with python < 3.8
+try:
+    from unittest import mock
+    from unittest.mock import AsyncMock
+except ImportError:
+    import mock
 
 import grpc
 from grpc.experimental import aio