If your corn is about to shed you might of notice that the snakes eyes have haze over. giving it a blueish appearance. then in few day that will clear up . But the snake will tend to be hiding out. And if might not want to eat during this period. Which could last a week. The "climate" you will might need is a humidity level of about 50%. But I think this level vary with the snake. My own snake have no problem with shedding so the humidity level is no concern for me. But when my amel was a hatchling It did have a few incomplete sheds. Which I did make a humid hide out of some damp moss.
If you are concern. I would suggest misting your viv once a day during the shedding process.
Let us know how it goes.