Method update

src/_pytest/mark/structures.py:570–576

(  # type: ignore[override]
        self,
        other: Union[Mapping[str, Any], Iterable[Tuple[str, Any]]] = (),
        **kwds: Any,
    )

        )

    def update(  # type: ignore[override]
        self,
        other: Union[Mapping[str, Any], Iterable[Tuple[str, Any]]] = (),
        **kwds: Any,
    ) -> None:
        self._markers.update(other)
        self._markers.update(kwds)

    def __delitem__(self, key: str) -> None:
        raise ValueError("cannot delete key in keywords dict")