code: protected function getResponse()
      {
          $url = $this->getUrl();
  
          $params = array(
              'get' => $this->getParams,
              'post' => $this->postParams,
              'headers' => $this->buildRequestHeader(),
          );
  
          return $this->curl->send($url, $params);
      }
docs: Returns raw response body
  
  @return array
  @throws \TwitterOAuth\Exception\CurlException