elkattan

import 'dart:typed_data';
import 'package:parse_server_sdk_flutter/parse_server_sdk.dart';
import 'package:web3dart/crypto.dart';
import 'package:web3dart/web3dart.dart';

final Wallet? wallet = Wallet(); // User wallet should be initialized

authenticate() async {
  if (wallet == null) {
    throw Exception('Wallet is not initialized');