How does the optional Night Vision Assistant work in the Audi A7?

I am considering adding the Night Vision Assistant feature to my Audi A7, but I am not sure how it works and if it is worth the extra cost. Can you provide more information on this feature?

The Night Vision Assistant uses infrared technology to detect and highlight potential hazards on the road ahead, such as pedestrians and large animals. It can also detect heat sources from parked vehicles or other objects.

I highly recommend the Night Vision Assistant. It has helped me spot potential dangers on the road while driving at night, and has even saved me from a few close calls.