Godot 3.1 header support?
So the GDNative headers are synced with 3.1: https://github.com/GodotNativeTools/godot_headers
Godot-nim docs say that's ment for 3.0. 
Does it matter that gdnative_headers got synced with 3.1, is it a big differencce? Does godot-nim just automagically work with the newest ones?
