code: def decode_list(self, ids):
      
      decoded_ids = []
      for id_ in ids:
        if 0 <= id_ < self._num_reserved_ids:
          decoded_ids.append(RESERVED_TOKENS[int(id_)])
        else:
          decoded_ids.append(id_ - self._num_reserved_ids)
      return [str(d) for d in decoded_ids]
docs: Transform a sequence of int ids into a their string versions.
  
      This method supports transforming individual input/output ids to their
      string versions so that sequence to/from text conversions can be visualized
      in a human readable format.
  
      Args:
        ids: list of integers to be converted.
  
      Returns:
        strs: list of human-readable string.