IMPORTANT

The pre-commit hooks are reverting my work-around for the "ty" issue, even with an attempted work around for the pre-commit issue. Rather than adding yet another work-around, I'm going to see what the maintainers suggest.

Summary

Replaces#1495 (I renamed my branch, which closed the draft PR.)

Theoptional validator (attrs.validators.optional) should accept anytuple of validators, just as it accepts anylist of validators. It looks like the peculiar type annotation syntax for variable-lengthtuples (tuple[<type>, ...]) was overlooked, and the exactly-one-element form (tuple[<type>]) was inadvertently used instead.

The proposed change corrects the annotation.

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