anyOf in responses generates invalid body parser #1263

        def _parse_response_200(data: object) -> Union["Response200", Literal["Why have a fixed response? I dunno"]]:
            response_200_type_0 = cast(Literal["Why have a fixed response? I dunno"], data)
            if response_200_type_0 != "Why have a fixed response? I dunno":
                raise ValueError(
                    f"response_200_type_0 must match const 'Why have a fixed response? I dunno', got '{response_200_type_0}'"
                )
            return response_200_type_0
            if not isinstance(data, dict):
                raise TypeError()
            response_200_type_1 = Response200.from_dict(data)

            return response_200_type_1