These APIs have field renames resulting from this #824 which expanded the RESERVED_NAMES list. Some of them are GA, and even for beta APIs I'd prefer not to take changes that looks spurious from the user's perspective.

googleapis/python-artifact-registry#12
googleapis/python-cloudbuild#81
googleapis/python-iot#87
googleapis/python-functions#45
googleapis/python-securitycenter#120
googleapis/python-bigquery-connection#57
googleapis/python-containeranalysis#112
googleapis/python-bigtable#280
googleapis/python-tasks#85
googleapis/python-policy-troubleshooter#8
googleapis/python-asset#171
googleapis/python-org-policy#32
googleapis/python-binary-authorization#18
googleapis/python-spanner#303
googleapis/python-secret-manager#100
googleapis/python-firestore#336
googleapis/python-billing#55
googleapis/python-datacatalog#143

policy and options are the two that show up in these APIs.

From looking at the regen, it doesn't look like these need to be added to the reserved names list? f5e9f36 seems to result in the imports being renamed to not conflict. I see from google.iam.v1 import policy_pb2 as giv_policy (example) instead of from google.iam.v1 import policy_pb2 as policy.

Can policy and options be removed from the list? @software-dov