I am new to Minecraft modding, so I followed 2 tutorials on how to make custom blocks. 1 by Harry Talks, the other one by Loremaster. Both of the series use the same type of RegistryHandler's, but both series don't show how to use this way of registering slabs, stairs or walls. I found a post about custom slabs, but it does not use a RegistryHandler to register the slabs. Looking at it, I can understand what is going on. I just have a hard time converting that code to the other technique.
Therefor my question is, given the RegistryHandler, BlockSlabBase and BlockInit bellow, how do I go on about registering a new slab?
My code could be completely off to what it should be, but that's just because of the lack of tutorials.