I've made a very small start on the Kumo driver. It's not a driver by an means at this point, just the authentication call, so that I can make sure that first step will work based on my translation of a python script I found. It does not include any controls for the air conditioner at this point, i.e. no temperature or mode controls, etc.
I'll write some more notes shortly.. (EDIT - That is a little hampered by my Internet being out for my Hub, happy to help anyone if you need a hand setting up this test....)
First you need to install the driver code (manually, it's not in package manager yet), create a new Virtual Device referencing the driver, enter your username and password, click Save Preferences and then run the Refresh command for the device. Ideally you should see an AuthCode state variable appear on the device page, but also review the logs to see what comes up. I don't have a Kumo account, so can't test this myself... Would love to hear any outcomes of testing.
I plan to do a few of these tests to make sure my integration with the Kumo Cloud works the way it needs to before doing a more fully fledged driver allowing for control and status updates.
Simon