"""
        return self.router.on_event(event_type)

    def middleware(
        self,
        middleware_type: Annotated[
            str,
            Doc(
                """
                The type of middleware. Currently only supports `http`.
                """
            ),
        ],

                            content_type_value = request.headers.get("content-type")
                            if not content_type_value:
                                json_body = await request.json()
                            else:
                                message = email.message.Message()
                                message["content-type"] = content_type_value