I'd say it depends exactly on what she means by housetraining... the puppy or the owner?
I do not believe it is possible to housetrain any puppy in such a short period. Most puppies will be more like six months old before they fully understand about housetraining. BUT it is entirely possible to be accident-free within a very short time frame (maybe seven days). However, that is completely reliant on the
owner being vigilent about ensuring that the puppy is always taken outside when it is going to need to go, praising wildly every time. It involves not only knowing when that is, but constantly watching for signs... and being right there every single time. Basically, it means eliminating the opportunities for the puppy to get things wrong. If that is what she means by housetraining, then sure, it's entirely possible

But IMO if she means the pup will
understand that quickly, then she's on the wrong planet LOL