let persistences = chanmon_cfgs[1].persister.offchain_monitor_updates.lock().unwrap().clone();
assert_eq!(persistences.len(), 1);
let (funding_txo, updates) = persistences.iter().next().unwrap();
let persistences = chanmon_cfgs[1].persister.offchain_monitor_updates.lock().unwrap().clone();
assert_eq!(persistences.len(), 1);
let (funding_txo, updates) = persistences.iter().next().unwrap();