clientgetuidfromclid is unknown

[2-man]

File "C:/Users/Jacob/.PyCharm2019.1/config/scratches/bot.py", line 163, in accon
asd = ts3conn.exec_("clientgetuidfromclid", clid=44)
File "C:\Users\Jacob\AppData\Local\Programs\Python\Python37-32\lib\site-packages\ts3\query.py", line 668, in exec_
q = self.query(cmd, *options, **params)
File "C:\Users\Jacob\AppData\Local\Programs\Python\Python37-32\lib\site-packages\ts3\query.py", line 734, in query
raise TS3InvalidCommandError(cmd, self.COMMAND_SET)
ts3.query.TS3InvalidCommandError: The command 'clientgetuidfromclid' is unknown.

ts3: Version:3.9.1 (02.07.2019 15:17:23) on Linux
ts3 package ver. 2.0.0b3

@@
clientinfo works fine for clid