How does it work? I mean in France I saw many self-cleaning toilets (you can find some in Paris) and they don't need an attendant to function; they just wait fo

How does it work? I mean in France I saw many self-cleaning toilets (you can find some in Paris) and they don't need an attendant to function; they just wait for people to leave before the cleaning start and if you get sprayed it's just on you.