V3.0. API documentation for the editor modules?

Here in the documentation of the engine v3.0: Modules · Cocos Creator
I can see a mention about editor modules:
The editor modules are all under the 'cce:' protocol

Where can I find documentation for those modules?

Aha, editor modules’re not prepared to use. I’ll contact the author to hide this section.

@shrinktofit That’s interesting. So, the editor is not ready for any type of extending at all?
I am a little bit frustrated, because I spent a lot of time for adopting my extension for version 3.0 and now it is not possible to move forward, until this documentation is released.

Maybe you know some time estimations for it? It would be great to know when to expect it.