ChannelMonitorUpdate update_hu_conv = new ChannelMonitorUpdate(null, update);
ChannelMonitor data_hu_conv = new ChannelMonitor(null, data);
Result_NoneChannelMonitorUpdateErrZ ret = arg.update_persisted_channel(id_hu_conv, update_hu_conv, data_hu_conv);
ChannelMonitorUpdate update_hu_conv = new ChannelMonitorUpdate(null, update);
ChannelMonitor data_hu_conv = new ChannelMonitor(null, data);
Result_NoneChannelMonitorUpdateErrZ ret = arg.update_persisted_channel(id_hu_conv, update_hu_conv, data_hu_conv);