Processes the results of the ListDirectory client action.

    Args:
      responses: a flow Responses object.

def ProcessListDirectory(self, responses):
    """Processes the results of the ListDirectory client action.

    Args:
      responses: a flow Responses object.
    """
    if not responses.success:
      raise flow.FlowError("Unable to list directory.")

    with data_store.DB.GetMutationPool() as pool:
      for response in responses:
        stat_entry = rdf_client_fs.StatEntry(response)
        filesystem.CreateAFF4Object(
            stat_entry, self.client_urn, pool, token=self.token)
        self.SendReply(stat_entry)