Add suggestion or fix for FA102 (future-required-type-annotation)

[RunDevelopment]

The rule FA102 (future-required-type-annotation) is very useful when writing code in a code base that support python <3.10. The only issue with this rule is that it only tells you that a from __future__ import annotations is required, it doesn't have any way of applying the suggested fix.

Please add a suggestion or fix for this rule to automatically add the missing from __future__ import annotations.

Code example:

# py 3.8 code base
def foo(l: list[int]): ...

[charliermarsh]

One way to achieve this is via missing-required-import (I002) -- you can mark from __future__ import annotations, and it'll be added to all non-empty files (see: https://docs.astral.sh/ruff/settings/#isort-required-imports):

[tool.ruff.lint.isort]
required-imports = ["from __future__ import annotations"]

[charliermarsh]

I will fix this :)

[RunDevelopment]

Thank you @charliermarsh!