如何在GetX中翻译提示文本？

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await TranslationService.init();
  runApp(MyApp());
}

class TranslationService {
  static Future<void> init() async {
    final preferences = await SharedPreferences.getInstance();
    final locale = preferences.getString('locale') ?? 'en_US';

    Get.updateLocale(Locale(locale));

    await Get.putAsync(() => AppTranslations().init());
  }
}

class AppTranslations extends Translations {
  @override
  Map<String, Map<String, String>> get keys => {
        'en_US': enUS,
        'zh_CN': zhCN,
      };

  Future<AppTranslations> init() async {
    await GetStorage.init();

    final language = Get.locale?.toLanguageTag() ?? 'en_US';
    await setLanguage(language);

    return this;
  }

  Future<void> setLanguage(String language) async {
    final lang = language.split('_').first;

    final String jsonContent = await rootBundle
        .loadString('lang/${lang.toLowerCase()}.json');

    final jsonMap = json.decode(jsonContent);

    if (jsonMap != null) {
      translations = Map<String, Map<String, String>>.from(jsonMap);
    }
  }
}

Text(
  Get.translations['hello_world'],
),