public function getLinkTypes()
    {
        $event = new Event('Wasabi.Backend.MenuItems.getLinkTypes', $this);
        EventManager::instance()->dispatch($event);

        $typeExternal = ['type' => 'external'];
        $typeCustom = ['type' => 'custom'];

        $event->result[__d('wasabi_core', 'General')] = [
            json_encode($typeExternal) => __d('wasabi_core', 'External Link'),
            json_encode($typeCustom) => __d('wasabi_core', 'Custom Controller Action')
        ];

        return $event->result;
    }