How to use the broadlink.bg1 function in broadlink

host = (cf.get('device_host'), 80)
        mac = bytearray.fromhex(cf.get('device_mac').replace(':', ' '))
        if device_type == 'rm':
            device = broadlink.rm(host=host, mac=mac, devtype=0x2712)
        elif device_type == 'sp1':
            device = broadlink.sp1(host=host, mac=mac, devtype=0)
        elif device_type == 'sp2':
            device = broadlink.sp2(host=host, mac=mac, devtype=0x2711)
        elif device_type == 'a1':
            device = broadlink.a1(host=host, mac=mac, devtype=0x2714)
        elif device_type == 'mp1':
            device = broadlink.mp1(host=host, mac=mac, devtype=0x4EB5)
        elif device_type == 'dooya':
            device = broadlink.dooya(host=host, mac=mac, devtype=0x4E4D)
        elif device_type == 'bg1':
            device = broadlink.bg1(host=host, mac=mac, devtype=0x51E3)
        else:
            logging.error('Incorrect device configured: ' + device_type)
            sys.exit(2)
        return configure_device(device, topic_prefix)