What additional paperwork should i get when I buy a certified pre-owned audi. I don't see any special paperw

I am buying a certified pre-owned audi and do not see any additional paperwork to sign that talks about or details the certified warranty. Has anyone else bought a certified audi and if so what paperwork did you receive with the car about the certified warranty?What additional paperwork should i get when I buy a certified pre-owned audi. I don't see any special paperwDid the dealer state there was a warranty ? If not, a used car is just that, I don't care if it's certified or not, it's sold "as is". If there is a warranty, your contract should state that, if it doesn't, no warranty exists.