Maybe this will work as a few things I found while searching mentioned a similar protocol for these USB controlled relay boards. The pictured board looks like the one you are using and there is a Python extension( python3 required ):
Good to hear. Two things you can do if you so chose which can help others:
Mark my post as Solution
If you have a github login leave a post in the “Issues” section saying thanks and that it worked for you on OS_name OS_version. Developers often don’t hear anything but problems.