getChannelEventData method
Override to provide event-specific data for serialization
Implementation
@override
Map<String, dynamic> getChannelEventData() => {
'fundingTxId': fundingTxId,
'fundingOutputIndex': fundingOutputIndex,
'fundingTxHex': fundingTxHex,
'refundTxHex': refundTxHex,
'clientSignatureHex': clientSignatureHex,
};