Pi Pico W WLAN set hostname in STA

Please help, cannot set hostrname in Pi Pico W
firmware: 
MicroPython v1.19.1-782-g699477d12 on 2022-12-20; Raspberry Pi Pico W with RP2040

code:
wlan = network.WLAN(network.STA_IF)
wlan.config(hostname="mypicow")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ValueError: unknown config param