Thanks for the patch.
I started this module when I had a lot of available time. However it got sidetracked when I got into a couple of other commitments. So the module is not ready at all at the stage and is basically the D7 module with a few tidbits of the beginning of D8 code.
P.S. If you would like to contribute to the module and you have the bandwidth, I can make you the co maintainer. Please raise a ticket for co maintainter access. Thanks