What is Kia Stonic's lane keep assist feature?

I've heard about Kia Stonic's lane keep assist feature, but I'm not sure what it does. Can you explain it to me and how it works?

Kia Stonic's lane keep assist feature uses a camera to monitor the vehicle's position in the lane. It will gently steer the car back into the lane if it detects the car drifting out of the lane without the turn signal being used.

Lane keep assist is a great feature, especially for long drives or when you're feeling fatigued. It helps keep you safe on the road by maintaining your position in the lane.

I really rely on Kia Stonic's lane keep assist feature during heavy traffic. It takes away the slight stress of constantly having to steer.