createCopyrightedMusic method

Implementation

Future<int> createCopyrightedMusic() async {
  ZegoFlutterEngine.copyMusic =
      ZegoFlutterEngine.instance.createCopyrightedMusic();
  if (ZegoFlutterEngine.copyMusic != null) {
    return 0;
  } else {
    return 1; // TODO: 错误码处理
  }
}