How does the Park Assist feature work in an Audi A8?

I've heard about the Park Assist feature in the Audi A8, but I'm not sure how it actually works. Can someone explain it to me?

The Park Assist feature in the Audi A8 uses ultrasonic sensors to detect the distance between your car and other objects. When the sensors detect a space that is large enough for your car to fit in, the system will guide you into the spot using steering control. It's important to note that the driver is still responsible for braking and accelerating in this process.