import 'package:get_storage/get_storage.dart'; class StorageService { static final StorageService _singleton = StorageService.internal(); factory StorageService() { return _singleton; } StorageService.internal(); late GetStorage _storage; init() async { await GetStorage.init(); _storage = GetStorage(); } Future read(String key) async { return await _storage.read(key); } Future write(String key, dynamic val) async { return await _storage.write(key, val); } Future remove(String key) async { return await _storage.remove(key); } }