public function process_shortcode($args = array(), $content = '')
 {
     $instance = App_Shortcodes::get_shortcode_instance('app_services');
     return !empty($this->_requested_location_id) && $instance && method_exists($instance, 'process_shortcode') ? $instance->process_shortcode($args, $content) : parent::process_shortcode($args, $content);
 }