Error when calling class ZS

[mickey3721]

In the newest version 0.9.21
How to solve the problem when calling class ZS cause error:

kline = CZSC(bars)
bi = kline.finished_bis
zs = get_zs_seq(bi)

zs = get_zs_seq(bi)
^^^^^^^^^^^^^^
File "C:\Users\Administrator\AppData\Roaming\Python\Python311\site-packages\czsc\utils\sig.py", line 310, in get_zs_seq
zs_list.append(ZS(symbol=bi.symbol, bis=[bi]))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: ZS.init() got an unexpected keyword argument 'symbol'

[mickey3721]

alread fixed in verison 0.9.23