webman的协程应该如何使用？

public function Test1()
    {
        Coroutine::create(function(){
            Timer::sleep(1.5);
            echo "hello coroutine\n";
        });
        return response('hello webman');
    }

Error: Class "Swoole\Coroutine" not found in /mnt/g/PHPDevelop/WebManProjects/webman-tools-api/ToolApi/vendor/workerman/workerman/src/Events/Swoole.php:59