Do not know how to use

I am with a Uarm Swift pro. I install pyuarm by using pip. 
Connected my uarm and it can be played with Uarm Studio. Uarm studio showed firmware is 3.1.5.
` sudo python -m pyuarm.tools.list_uarms`
`0 ports found`

and I cannot use it. are there any documents for more detailed steps to use this library?