response.headers.raw.extend(solved_result.response.headers.raw)
            elif dependant.is_async_gen_callable or dependant.is_gen_callable:
                # Raw streaming with explicit response_class (e.g. StreamingResponse)
                gen = dependant.call(**solved_result.values)
                if dependant.is_async_gen_callable:

                    async def _async_stream_raw(