muteRemoteAudioStream method
Implementation
void muteRemoteAudioStream(String userId, bool isMute) {
  String userData = Tools.generateUserData();
  _engineSDK.Dart_MuteRemoteAudioStream(
      _engineFFIPointer,
      Tools.string2PointerChar(userId),
      isMute,
      Tools.string2PointerChar(userData));
}