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Thanks Holt! small nit: vertexai.init has some overhead. Maybe we can have some comment saying it only needs to be called once per session or so.

@qizzzh

The code samples team is trying to simplify our samples and reduce boilerplate where needed. The other Gemini samples don't include anything about doing the init once per session, should they be changed as well?

I think some comments may be sufficient for now. It's not difficult for developers to figure it out.

Note: I've tested the samples locally with the dev SDK and an allowlisted project, and they are all passing.