Responses without candidates throwing IndexError

[markmcd]

Description of the bug:

e.g.

I think ideally this would error with a relevant error message.

Actual vs expected behavior:

No response

Any other information you'd like to share?

No response

[persianopencart]

@markmcd
Hi, is there any update for this issue?

[MarkDaoust]

I think this is fixed by #138.

I don't see another way this code can throw an index error.

https://github.com/google/generative-ai-python/blob/main/google/generativeai/types/generation_types.py#L286-L335

[MarkDaoust]

But LMK if I'm wrong, please send code to reproduce.