Start with fresh gassed ASF. Use a smelly male. An use tough love, offer ASF at two weeks. If refused, offer again at two weeks. On an on till she eats.
Will your local breeder gas a fresh one for you? Better yet will they sell you a live colony or bred female?
Good luck!
I should say nature will drive the female to eat. Laying eggs takes a toll on the snakes body. A smaller prey item might get a faster response. But sooner then later her brain is going to say eat it no matter what it is.
Good luck!