final function change_package_lang_ajax()
 {
     global $wpdb, $sitepress;
     if (!$this->verify_ajax_call('wpml_package_nonce')) {
         die('verification failed');
     }
     $package_id = $_POST['package_id'];
     $package = new WPML_Package($package_id);
     $package->set_strings_language($_POST['package_lang']);
     $package_job = new WPML_Package_TM($package);
     $package_job->set_language_details($_POST['package_lang']);
     $args = json_decode(base64_decode($_POST['args']));
     $package_metabox = new WPML_Package_Translation_Metabox($package, $wpdb, $sitepress, $args);
     $response = array('metabox' => $package_metabox->get_metabox_status(), 'lang' => $package_metabox->get_package_language_name());
     wp_send_json($response);
 }