toString method Null safety

  1. @override
String toString()
override

Overrides toString() method for useful error messages

Implementation

@override
String toString() {
  return '''XchainModel
    address : $address,
    publicKey : ${base64.encode(publicKey)},
    lastBlock : ${lastBlock == null ? 'null' : base64.encode(lastBlock!)},
  ''';
}