Documentation for UserAccountApi

I have seen a couple of examples that use methods of UserAccountApi. Unfortunately, I cannot find documentation on this API. Can anybody point me in the right direction?

Thanks for that information. Using it was I able to determine that the API is coming from https://assets.squarespace.com/universal/scripts-compressed/user-account-core-685659d06068b2426733-min.en-US.js . Unfortunately, the script is obfuscated, so it will not help a lot.

I did see the official documentation. I just assumed that there would be more.

Thanks for your help.