code: def _get_match_and_classification(self, urls):
          
          for url_list, response in self._query(urls):
              classification_set = response.text.splitlines()
              for url, _class in zip(url_list, classification_set):
                  if _class != 'ok':
                      yield url, _class
docs: Get classification for all matching URLs.
  
          :param urls: a sequence of URLs to test
          :return: a tuple containing matching URL and classification
          string pertaining to it