def METHOD_NAME(self, round_idx, model_params=None, client_index=None, src=0):
    logging.info("sending round number to pg")
    round_number = [round_idx, model_params, client_index]
    dist.broadcast_object_list(
        round_number, src=src, group=self.trainer_dist_adapter.process_group_manager.get_process_group(),
    )
    logging.info("round number %d broadcast to process group" % round_number[0])