Naming conflict when importing ga_operation

[parthea]

I'm having trouble generating the client for appengine v1 and I found the issue is that there is a naming conflict with ga_operation

In client.py, ga_operation has a naming conflict.

from google.api_core import operation as ga_operation

conflicts with

from google.cloud.appengine_admin_v1.types import operation as ga_operation

__________________________________ ERROR collecting tests/unit/gapic/appengine_admin_v1/test_applications.py __________________________________
tests/unit/gapic/appengine_admin_v1/test_applications.py:38: in <module>
    from google.cloud.appengine_admin_v1.services.applications import (
google/cloud/appengine_admin_v1/__init__.py:18: in <module>
    from .services.applications import ApplicationsClient
google/cloud/appengine_admin_v1/services/applications/__init__.py:18: in <module>
    from .client import ApplicationsClient
google/cloud/appengine_admin_v1/services/applications/client.py:78: in <module>
    class ApplicationsClient(metaclass=ApplicationsClientMeta):
google/cloud/appengine_admin_v1/services/applications/client.py:392: in ApplicationsClient
    ) -> ga_operation.Operation:
E   AttributeError: module 'google.cloud.appengine_admin_v1.types.operation' has no attribute 'Operation'

[software-dov]

Root cause turns out to be that raw imports in e.g. test template are not being added to name disambiguation. Fix is to add "auth" et al to RESERVED_NAMES.