Or if you know she's in a particular hide, you can leave the pinkie (live in bowl or f/t on "plate") just outside the doorway of the hide, where she'll likely feel safe
enough after lights out to reach out & grab it to eat inside her hide. Getting a shy snake to feed is mostly a matter of empathy...learning to think like a snake, lol.
Once she gets a taste of eating, she'll like how she feels, more energetic, & she'll be craving food again quickly. She needs to get beyond this slump of refusing to eat.