| from typing import Any, Protocol | |
| class ProtoA(Protocol): | |
| def meth(self, x: int) -> int: ... | |
| class ProtoB(Protocol): | |
| def meth(self, obj: Any, x: int) -> int: ... | |
| class C: | |
| def meth(self, x: int) -> int: ... | |
| a: ProtoA = C # Type check error, signatures don't match! | |
| b: ProtoB = C # OK | |