I guess it's fine for what it enables, Tree[T] of some kind basically. But we had that with codegen already.. People who really needed trees, could do that forever. However, the issue is the "unwashed"—like they said in adjacent comment—putting them everywhere now, where an interface would be more fitting. Hopefully I'm explaining in terms that you can comprehend.

This is dogshite because I have to fork a bunch of stuff to actually use it!

I used go for about 3 years, so yeah I understand... but I can't believe you actually like copy-paste/codegen more than actual native language facilities. Mind blowing to be honest.