EmptyNode constructor
Implementation
const EmptyNode()
    : super(
        bip32Node: null,
        address: "",
        derivationPath: "",
        addresses: const {},
        walletPurpose: null,
        publicKey: "",
        type: 2,
      );
const EmptyNode()
    : super(
        bip32Node: null,
        address: "",
        derivationPath: "",
        addresses: const {},
        walletPurpose: null,
        publicKey: "",
        type: 2,
      );