getChannelEventData method
Override to provide event-specific data for serialization
Implementation
@override
Map<String, dynamic> getChannelEventData() => {
'settlementTxId': settlementTxId,
'finalClientBalanceSats': finalClientBalanceSats.toString(),
'finalServerBalanceSats': finalServerBalanceSats.toString(),
if (settlementTxHex != null) 'settlementTxHex': settlementTxHex,
};