changeUserRole method
Implementation
Future<TUIActionCallback> changeUserRole(String userId, TUIRole role) {
String userData = Tools.generateRoomUserData();
Completer<TUIActionCallback> completer = Completer();
_actionCallback2Future(userData, completer);
_engineSDK.Dart_ChangeUserRole(
_engineFFIPointer, Tools.string2PointerChar(userId), role.value(), Tools.string2PointerChar(userData));
return completer.future;
}