It is also guaranteed that all available script functions are documented here for the time at which it was built. The script methods are exported from the engine, so this eliminates the necessity for manual updating and the errors that generally result from it.
For those using or interested in using the full SDK (working with the C++ code) you should know that the functions here are almost invariably wrapping the exact class function. This should make the transition of scripting something then moving it to intrinsic code, or vice versa, fairly easy.