@verify.register(Missing)
def verify_none(stub: Missing, runtime: MaybeMissing[Any], object_path: List[str]) -> Iterator[Error]:
    (yield Error(object_path, 'is not present in stub', stub, runtime))
@verify.register(Missing)
def verify_none(stub: Missing, runtime: MaybeMissing[Any], object_path: List[str]) -> Iterator[Error]:
    (yield Error(object_path, 'is not present in stub', stub, runtime))