More specifically, you can do interfaces with Protocol[0]. The main problem with it seems to be as soon as you a single Protocol mypy becomes extremely slow. [

More specifically, you can do interfaces with Protocol[0]. The main problem with it seems to be as soon as you a single Protocol mypy becomes extremely slow. [0] https://docs.python.org/3/library/typing.html#typing.Protocol https://docs.python.org/3/library/typing.html#typing.Protoco...