GatewayWorker的定时器，如何向workman一样指定某个进程去定时执行

$worker->onWorkerStart = function($worker)
{
    // 只在id编号为0的进程上设置定时器，其它1、2、3号进程不设置定时器
    if($worker->id === 0)
    {
        Timer::add(1, function(){
            echo "4个worker进程，只在0号进程设置定时器\n";
        });
    }
};

public static function onMessage($worker) {
    if($worker->id === 0)
    {
        Timer::add(1, function(){
            ...
        });
    }
}

public static function onWorkerStart($businessWorker)
{ 
       if ($businessWorker->id == 0) {

       } 
}