let feeest = Arc::new(test_utils::TestFeeEstimator { sat_per_kw: 253 });
let chain_monitor = Arc::new(chaininterface::ChainWatchInterfaceUtil::new(Network::Testnet, Arc::clone(&logger)));
let block_notifier = Arc::new(chaininterface::BlockNotifier::new(chain_monitor.clone()));
let feeest = Arc::new(test_utils::TestFeeEstimator { sat_per_kw: 253 });
let chain_monitor = Arc::new(chaininterface::ChainWatchInterfaceUtil::new(Network::Testnet, Arc::clone(&logger)));
let block_notifier = Arc::new(chaininterface::BlockNotifier::new(chain_monitor.clone()));