Method update

lib/sqlalchemy/ext/associationproxy.py:1907–1910

(self, *s: Iterable[_T])

        return self._get(member)

    def update(self, *s: Iterable[_T]) -> None:
        for iterable in s:
            for value in iterable:
                self.add(value)

    def _bulk_replace(self, assoc_proxy: Any, values: Iterable[_T]) -> None:
        existing = set(self)