Stella, Joey is a female!

Since you're a breeder I have a question for you:
I fell in love with this beautiful maine coon female at a cat show.
I came so close to buying her, until I had to dish out close to one grand for Phoenix vet bill.
When I was holding her I didn’t feel any claws, so I ask the breeder if she was de-clawed.
She responded by telling me, no, we train our cats to retract their claws. How is that possible?