Method update

pydantic/v1/mypy.py:775–779

(self, config: Optional['ModelConfigData'])

        return {k: v for k, v in self.__dict__.items() if v is not None}

    def update(self, config: Optional['ModelConfigData']) -> None:
        if config is None:
            return
        for k, v in config.set_values_dict().items():
            setattr(self, k, v)

    def setdefault(self, key: str, value: Any) -> None:
        if getattr(self, key) is None: