public function hasCommand($notificationName)
 {
     if (!self::$shouldSuppressEcho) {
         echo $notificationName . PHP_EOL;
     }
     return parent::hasCommand($notificationName);
 }
 /**
  * Has Command
  *
  * Check if a <b>Command</b> is registered for a given <b>Notification</b>
  *
  * @param string $notificationName Name of the <b>INotification</b> to check for.
  * @return bool Whether a <b>Command</b> is currently registered for the given <var>notificationName</var>.
  */
 public function hasCommand($notificationName)
 {
     return isset($this->controller) ? $this->controller->hasCommand($notificationName) : false;
 }