code: def _load(self):
          
          try:
              get = requests.get(self._ref,
                                 verify=self.http_verify,
                                 auth=self.auth,
                                 timeout=self.timeout)
          except requests.exceptions.RequestException as err:
              raise NotFoundError(err)
          return get.content
docs: Function load.
          :return: Response content
          :raises: NotFoundError