What is Audi A8's Remote Garage Pilot function?

I've heard about the Audi A8's new Remote Garage Pilot function and I'm wondering how it works and what it can do. Can someone explain?

The Remote Garage Pilot function allows the driver to remotely park their Audi A8 using a smartphone app. It can help drivers park in tight spaces or narrow garages, making it easier to maneuver their vehicle.

With the Remote Garage Pilot, you can also exit the vehicle while it is remotely parked. This can be helpful if the driver needs extra space to enter or exit the car.