How does the overboost function work in the Audi A5?

I've heard about an overboost function in the Audi A5. Can someone explain what it does and how it works?

The overboost function is a feature in Audi's turbocharged engines that allows for a temporary increase in boost pressure and power output. It works by using the car's onboard computer to control the wastegate valve in the turbocharger, which in turn increases the amount of air and fuel being compressed and burned in the engine.

I've found that the overboost function is most noticeable when accelerating from a standstill or in low RPMs. It gives the car an extra boost of power for a short period of time, making it feel more responsive and powerful.