Zend\Mvc\ModuleRouteListener::attach PHP Method

    public function attach(EventManagerInterface $events, $priority = 1)
    {
        $this->listeners[] = $events->attach(MvcEvent::EVENT_ROUTE, [$this, 'onRoute'], $priority);
    }

 public function onBootstrap($e)
 {
     $eventManager = $e->getApplication()->getEventManager();
     $moduleRouteListener = new ModuleRouteListener();
     $moduleRouteListener->attach($eventManager);
     $eventManager->attach(MvcEvent::EVENT_DISPATCH, array($this, 'rotateXPoweredByHeader'));
 }