LDKChannelManager cm = ChannelManager_new(fee_est, mon, broadcast, logger, keys_source, config, chain);
LDKCVec_ChannelDetailsZ channels = ChannelManager_list_channels(&cm);
LDKChannelManager cm = ChannelManager_new(fee_est, mon, broadcast, logger, keys_source, config, chain);
LDKCVec_ChannelDetailsZ channels = ChannelManager_list_channels(&cm);