If you are using stub .pyi files and flake8-pyi extension you might need to ignore several violations that are bundled with this linter.

You can still do it on per-file bases as usual. Use *.pyi glob to list ignored violations:

# Inside `setup.cfg`:
per-file-ignores =
  *.pyi: WPS428, WPS604

You can look at the returns project as an example.