code: private function getDefaultCurlOptions()
      {
          return array(
              CURLOPT_POST => true,
              CURLOPT_USERAGENT => $this->config['UserAgent'],
              CURLOPT_VERBOSE => false,
              CURLOPT_HEADERFUNCTION => array($this, 'headerCallback'),
              CURLOPT_RETURNTRANSFER => true,
              CURLOPT_SSL_VERIFYPEER => true,
              CURLOPT_SSL_VERIFYHOST => 2
          );
      }
docs: Gets cURL options common to all MWS requests.
  @return array