Method cache_key

src/_pytest/fixtures.py:1241–1242

(self, request: SubRequest)

        return result

    def cache_key(self, request: SubRequest) -> object:
        return getattr(request, "param", None)

    def __repr__(self) -> str:
        return f"<FixtureDef argname={self.argname!r} scope={self.scope!r} baseid={self.baseid!r}>"