使用 Swoole\WebSocket\Client 提示没有 about swoole-cli HOT 3 CLOSED

use Swoole\Coroutine;
use Swoole\Coroutine\Http\Client;
use function Swoole\Coroutine\run;

run(function () {
    $client = new Client('127.0.0.1', 9501);
    $ret = $client->upgrade('/');   # 最关键点就是这里了。
    if ($ret) {
        while(true) {
            $client->push('hello');
            var_dump($client->recv());
            Coroutine::sleep(0.1);
        }
    }
});