Ask her which she prefers. And be prepared for her preference yo be a nappy still.

Liebling was aware of what was going to happen before he was 2 and able to use a potty. But as he preferred nappies, he would ask me for a nappy so he could do a wee, then take it off afterwards. When he decided to use the loo (age 3.5) it was really easy. It was just a long time for his preference to change.