Improve type annotation of *args

[Muream]

at the moment It is In most cases annotated as List[str] which should simply become str

some are annotated as Tuple[str, str], maybe they should become arg0: str, arg1: str?

it's possible there are other cases that should be improved

[Muream]

closed by 7b1a77c066f2ebd97c54e007231fc5c90de800f7