Method __ffi_hash__

tests/python/test_dataclass_compare.py:1310–1311

(self, fn_hash: _Callable_cmp[..., _Any_cmp])

    label: str

    def __ffi_hash__(self, fn_hash: _Callable_cmp[..., _Any_cmp]) -> int:
        return fn_hash(self.key)

    def __ffi_eq__(self, other: _PyCmp, fn_eq: _Callable_cmp[..., _Any_cmp]) -> bool:
        return fn_eq(self.key, other.key)