fetchUserInfo method
Implementation
Future<TUIValueCallBack<User>> fetchUserInfo(String userId) async {
final result = await roomEngine.getUserInfo(userId);
return (result.code == TUIError.success && result.data != null)
? TUIValueCallBack(
code: result.code,
message: result.message,
data: User.fromTUIUserInfo(result.data!))
: TUIValueCallBack(code: result.code, message: result.message);
}