if (background_processor != null) { return; }
for (TwoTuple_BlockHashChannelMonitorZ monitor: channel_monitors) {
this.chain_monitor.as_Watch().watch_channel(monitor.get_b().get_funding_txo().get_a(), monitor.get_b());
if (background_processor != null) { return; }
for (TwoTuple_BlockHashChannelMonitorZ monitor: channel_monitors) {
this.chain_monitor.as_Watch().watch_channel(monitor.get_b().get_funding_txo().get_a(), monitor.get_b());