/**
  * @see EPSInterface::getClientById($sessionId, $clientId)
  */
 public function getClientById($sessionId, $clientId)
 {
     try {
         $getClientByIdStdObject = new stdClass();
         $getClientByIdStdObject->sessionId = $sessionId;
         $getClientByIdStdObject->clientId = $clientId;
         $response = parent::getClientById($getClientByIdStdObject);
         if (isset($response->return)) {
             $resultClientData = new ResultClientData($response->return);
         } else {
             $resultClientData = null;
         }
         return $resultClientData;
     } catch (SoapFault $sf) {
         throw new ServerException($sf);
     }
 }