chore(spec): clean up comments in gRPC spec

[a2a-bot]

Commit: a2aproject/A2A@cab1bc3

[gemini-code-assist]

Summary of Changes

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This pull request updates the generated Python gRPC service code (a2a_pb2_grpc.py) to align with the latest API specification. The primary change involves removing outdated or unnecessary comments from the service class docstrings, specifically those detailing AIP compliance exceptions for certain API elements.

Highlights

• Automated Specification Update: This pull request appears to be an automated update to the a2a_pb2_grpc.py file, likely generated from an updated API specification. The PR title and description indicate it's syncing with a specific commit from the A2A repository.
• Docstring Cleanup: Specific explanatory comments regarding AIP (API Improvement Proposal) compliance have been removed from the docstrings of the A2AServiceStub, A2AServiceServicer, and A2AService classes. These removed comments previously noted that certain fields (fields and optional history_length) were not present due to AIP rule violations (AIP-127 and AIP-131).

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[gemini-code-assist]

Code Review

This pull request updates the generated gRPC Python code by removing outdated and incorrect comments from several docstrings. The removed comments incorrectly stated that history_length was not present on the GetTask method. My review confirms that history_length is indeed part of the GetTaskRequest and is used in the client implementation, so removing this comment is the correct action. This change improves documentation accuracy. The PR looks good to merge.