import 'dart:async'; import 'package:flutter/foundation.dart'; import 'package:flutter/services.dart'; const platform = const MethodChannel('com.cakewallet.cakewallet/legacy_wallet_migration'); Future readTradeList( {@required String key, @required String salt}) async => await platform.invokeMethod('read_trade_list', {'key': key, 'salt': salt}); Future readEncryptedFile(String url, {@required String key, @required String salt}) async => await platform.invokeMethod( 'read_encrypted_file', {'url': url, 'key': key, 'salt': salt});