Method __init__

src/werkzeug/datastructures/structures.py:842–844

(self, dicts: cabc.Iterable[MultiDict[K, V]] | None = None)

        return type(self), (self.dicts,)

    def __init__(self, dicts: cabc.Iterable[MultiDict[K, V]] | None = None) -> None:
        super().__init__()
        self.dicts: list[MultiDict[K, V]] = list(dicts or ())

    @classmethod
    def fromkeys(cls, keys: t.Any, value: t.Any = None) -> t.NoReturn: