💡 Fix type hint in _generate_and_score_completions

[syt-nju]

What does this PR do?

Fixes # (issue)

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[qgallouedec]

Thanks!

[HuggingFaceDocBuilderDev]

The docs for this PR live here. All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.

[syt-nju]

Thanks!
The issue with this type hint should span the entire file, so I might need to trouble you to help me modify it together.

[qgallouedec]

Thank you for helping to improve the accuracy of the type hints. Please feel free to open another PR if you feel that further corrections are necessary :)

[yuh8]

This fix is also needed for

def _prepare_inputs(
        self, accumulated_local_batch: dict[str, Union[torch.Tensor, Any]]
    ) -> dict[str, Union[torch.Tensor, Any]]:

should change to

def _prepare_inputs(
        self, accumulated_local_batch: list[dict[str, Union[torch.Tensor, Any]]]
    ) -> dict[str, Union[torch.Tensor, Any]]: