Electrosurgical methods, systems, and apparatus for the controlled ablation of tissue from a target site of a patient. The trim part includes a retaining element that is connected on a first end to the airbag cover and on a second end to an anchor such that the retaining element has an excess length. The surface is treated to create a diffusive interface with a light source. From this, it is possible to determine the laundry load quantity that is located in the spin dryer, and as a result a program sequence for drying the load can be optimized.