Heat 1 tablespoon oil in the wok over medium heat. Add Sichuan pepper, chilli, ginger and garlic to the wok and saute briefly. Add the beans and mince, fry for a short time and stir. Dark soy sauce, light soy sauce, add sugar. Season with salt. Stir for 1-2 minutes until dry. Rake and put into a plate for serving. Cooked rice is very good.