We have an open PR on Black (psf/black#5021) to change how Black adds whitespace to stubs. You can see the proposed new style in https://github.com/psf/black/pull/5021/changes#diff-0877157cf6fb3de94119a8cdc46fc8299559bcdaab977461adff007e2d0b8634 (scroll down to below "# output", that's Black's output formatting).

I'd like some community feedback before merging this change into Black. Any typeshed maintainers (or other interested folks reading this), please take a look at the linked PR and share any feedback.