请问gatewaywork里面呢怎么指定进程开计时器呢

$worker->count = 4;
$worker->onWorkerStart = function($worker)
{
    //比如：只给id为0的进程设置定时器
    if($worker->id === 0)
    {
        Timer::add(1, function(){
            pprint("共启动了4个worker进程，只给0号进程设置定时器");
        });
    }
};