Method setdefault

scrapy/utils/datatypes.py:85–86

(self, key: AnyStr, def_val: Any = None)

        return dict.get(self, self.normkey(key), self.normvalue(def_val))

    def setdefault(self, key: AnyStr, def_val: Any = None) -> Any:
        return dict.setdefault(self, self.normkey(key), self.normvalue(def_val))

    # doesn't fully implement MutableMapping.update()
    def update(self, seq: Mapping[AnyStr, Any] | Iterable[tuple[AnyStr, Any]]) -> None:  # type: ignore[override]