extendedMarshalBinary method
Implementation
@override
Uint8List extendedMarshalBinary() {
List<int> forConcat = [];
forConcat.addAll(uvarintMarshalBinary(TransactionType.updateKey, 1));
forConcat.addAll(bytesMarshalBinary(_newKeyHash, 2));
return forConcat.asUint8List();
}