Connecting with uArm Robtoics Arm

Hi there , I am using uArm that uses Arduino MEGA 2560 , I want to connect it using USB however not sure which port does it communicate with PC. Can any body please comment on it. Also is there python code to communicate with Arduino .
I also had a chance to see the following GitHub link

I had a quick look at this Github repository, however, I struggle to find the port number as the constructor used in the connect module defines NONE for the port.

any comment please.

You could check the port on Taskmanager of PC.