Anonymous authorization firebase

Anonymous authorization

I only want to use anonymous authorization since that’s enough for my purposes. In firebase, when using anonymous authorization, an entry with uid appears and it is actually tied to the device before the application is deleted from the phone.
But I had a big problem, I would like to receive uids that are issued during authorization to form a user base, but unfortunately I can not get an anonymous uid in gdevelop.
Can someone explain to me why or how to solve the problem?
Thank you

no one can help?
no one can help?

Have you tried Firebase::GetUserUID() ?