protected function _delete($number, NetLicensingAPI $nlic_connect, $force_cascade = FALSE)
 {
     $params = array();
     $service_url = $this->_getServiceRequestUrl();
     if ($force_cascade) {
         $params['forceCascade'] = TRUE;
     }
     $response = $nlic_connect->delete($service_url . '/' . $number, $params);
     $status_code = $nlic_connect->getHttpStatusCode();
     return !empty($status_code) && $status_code == '204' ? TRUE : FALSE;
 }