Are there any advanced examples on py2neo ogm?

Hello !

I'm trying to create some py2neo custom models by using the ogm. The thing is, that I do not quite understand how the py2neo's ogm actually works, and the documentation is not so complete.

If I am correct, py2neo is a few people's side project and that is ok. I'm just asking for some more advanced examples, if there are any. From a simple search, i didn't find any unfortunately.