Description of the bug:

just doing a static analysis of the code and found. I don't know how to fix it, so I am raising this issue.

https://github.com/google-gemini/generative-ai-python/blob/630318b34f91c0d75b1a73131951a56c680005f3/google/generativeai/types/retriever_types.py#L109

Actual vs expected behavior:

No response

Any other information you'd like to share?

No response