updateService method Null safety

Future<bool> updateService(
  1. {String? notificationTitle,
  2. String? notificationText,
  3. Function? callback}
)

Implementation

Future<bool> updateService({
  String? notificationTitle,
  String? notificationText,
  Function? callback,
}) {
  throw UnimplementedError('updateService() has not been implemented.');
}