What is the role of Lin Chong played by Pei Yanling, a traditional opera performer in China, in Beijing Opera?

Pei Yanling, a traditional Chinese opera actor in China, plays Lin Chong in Running at Night, which belongs to a martial artist in Beijing Opera.

The so-called wusheng is a figure with high martial arts in Beijing Opera. Martial arts students are divided into two categories, one is long-term dependence on martial arts students, and the other is short-term fighting martial arts students. Wu Sheng, a long-term recluse, wears an invisibility cloak, a helmet and thick-soled boots, usually with long-handled weapons. This kind of martial arts students not only require good martial arts, but also have the demeanor and courage of a general, and the work rack should be beautiful, steady and dignified. Short-sleeved martial arts students wear thin boots and use both long and short weapons. Wushu students are required to be healthy and agile. The expert's opinion is that they should drift, be crisp, look clean, play beautifully and be agile and flexible.