def METHOD_NAME(self, args):
    '''gas help commands'''
    usage = "Usage: gasheli <start|stop|set>"
    if len(args) < 1:
        print(usage)
        return
    if args[0] == "start":
        self.start_motor()
    elif args[0] == "stop":
        self.stop_motor()
    elif args[0] == "set":
        self.gasheli_settings.command(args[1:])
    else:
        print(usage)