public function setupBundleList()
    {
        if (! Guard::verifyAjaxNonce('cuztom', 'security')) {
            return;
        }

        $data = [];
        $bundle = self::getField();

        if (Cuztom::isArray($bundle->data)) {
            foreach ($bundle->data as $item) {
                $data[] = $item->output();
            }
        }

        echo (new Response(true, $data))->toJson();

        // wp
        die();
    }