WebSocketRequestValidationError,
            # Starlette still has incorrect type specification for the handlers
            websocket_request_validation_exception_handler,  # type: ignore
        )

        self.user_middleware: List[Middleware] = (
            [] if middleware is None else list(middleware)
        )
        self.middleware_stack: Union[ASGIApp, None] = None
        self.setup()

            self.secure_cloned_response_field: Optional[
                ModelField
            ] = create_cloned_field(self.response_field)
        else:
            self.response_field = None  # type: ignore
            self.secure_cloned_response_field = None
        self.dependencies = list(dependencies or [])
        self.description = description or inspect.cleandoc(self.endpoint.__doc__ or "")