Is There Any Documentation For The Splinterlands API?

Not much in the way of rewards today although 50 DEC is pretty sweet. Anyway, as per the question in my title, i'm looking for any documentation available on the Splinterlands API.

In particular, i'm interested in the methods around battling, submitting teams etc. I can't seem to find anything out there for it.

Would appreciate if anyone could point me in the right direction. Thank you.