/**
* Send multiple notifications.
*
* @param array $info
* @return Senders\SendMultiple
*/
public function sendMultiple($info = [])
{
$info = count($info) > 0 ? $info : $this->toArray();
$notificationsSent = $this->notifynderSender->sendMultiple($info, $this->defaultCategory);
$this->refresh();
return $notificationsSent;
}