How to use the daphne.cli.ASGI3Middleware function in daphne

if args.access_log == "-":
                access_log_stream = sys.stdout
            else:
                access_log_stream = open(args.access_log, "a", 1)
        elif args.verbosity >= 1:
            access_log_stream = sys.stdout
        # Import application
        sys.path.insert(0, ".")
        application = import_by_path(args.application)

        asgi_protocol = args.asgi_protocol
        if asgi_protocol == "auto":
            asgi_protocol = "asgi2" if is_double_callable(application) else "asgi3"

        if asgi_protocol == "asgi3":
            application = ASGI3Middleware(application)

        # Set up port/host bindings
        if not any(
            [
                args.host,
                args.port is not None,
                args.unix_socket,
                args.file_descriptor is not None,
                args.socket_strings,
            ]
        ):
            # no advanced binding options passed, patch in defaults
            args.host = DEFAULT_HOST
            args.port = DEFAULT_PORT
        elif args.host and args.port is None:
            args.port = DEFAULT_PORT