docs: def index_sample(self, md5, index_name):
          """ Index a stored sample with the Indexer.
              Args:
                  md5: the md5 of the sample
                  index_name: the name of the index
              Returns:
                  Nothing
          """
          generator = self.stream_sample(md5)
          for row in generator:
              self.indexer.index_data(row, index_name)