code: def results(self, dataset_name, index_by, timeframe):
          
          url = "{0}/{1}/results".format(self._cached_datasets_url, dataset_name)
  
          index_by = index_by if isinstance(index_by, str) else json.dumps(index_by)
          timeframe = timeframe if isinstance(timeframe, str) else json.dumps(timeframe)
  
          query_params = {
              "index_by": index_by,
              "timeframe": timeframe
          }
  
          return self._get_json(
              HTTPMethods.GET, url, self._get_read_key(), params=query_params
          )
docs: Retrieve results from a Cached Dataset. Read key must be set.