PR https://github.com/googleapis/gapic-generator-python/pull/1249 updated the docstring for map fields however [this line](https://github.com/googleapis/gapic-generator-python/blob/main/tests/integration/goldens/logging/google/cloud/logging_v2/services/logging_service_v2/client.py#L478) has `Mapping` outside of a docstring without a corresponding import. See build [log here](https://source.cloud.google.com/results/invocations/9017e751-0e21-4f22-a340-6fba7dbbe3c3/log) where a build failed a downstream repo with error.