How does the Audi A7's active lane assist feature work?

I've heard that the Audi A7 has an active lane assist feature, but I'm not sure how it actually works. Can someone explain it to me?

The active lane assist feature in the Audi A7 uses a front camera to monitor the lane markings and detect when the car is veering out of its lane. It then provides steering assistance to keep the car centered in the lane. My advice is to always keep your hands on the steering wheel, as this feature is not meant to replace attentive driving.