Hello
On http://www.lfs.net/?page=LYT there is list of object types:

But it is just the names, no numbers are assigned to the constants?
I would like to do things like

Of course could just make such list myself like

but would defeat the point of having such official list of constants in the first place?

I suppose that all those values are defined in a C-style enum like this

therefore you don't need to know the actual numerical value. Unless specified otherwise, the first value is 0, second value is 1 and so on...