public function getOffers($modelId, $params = array())
    {
        $resource = 'model/' . $modelId . '/offers.json';
        $resource .= '?' . $this->buildQueryString($params);
        $response = $this->getServiceResponse($resource);

        $getOffersResponse = new Models\ResponseModelOffersGet($response);

        return $getOffersResponse;
    }