public function getListeners($event)
    {
        $parentListeners = [];
        $wildcards = [];

        if( is_object($event) )
        {
            $eventName = get_class($event);
            $parentListeners = $this->getParentListeners($event);
        }
        else
        {
            $eventName = $event;
            $wildcards = $this->getWildcardListeners($event);
        }

        if (!isset($this->sorted[$eventName])) {
            $this->sortListeners($eventName);
        }

        return array_merge($this->sorted[$eventName], $wildcards, $parentListeners);
    }