Luup functions list

Is there a list of basic Luup functions and what parameters they return?
As an example, I came across this on the sticky from this board. Where else could i have known about it if it wasn’t for that post?

return luup.is_night()

You can get this and a lot more information with the very helpful tool from RexBeckett! See the following:

http://forum.micasaverde.com/index.php/topic,24018.0.html

There is a complete list at Luup Lua Extensions.