Understanding pre built functions and scripts..!

iam having trouble relating functions on the revit API document on web to what i want to do,!
do we have any document specifying like the img below (## just an Example…!)

:stuck_out_tongue: :stuck_out_tongue: new to python

I mainly require scripts to call elements on the ribbion( used often).,

also if there is any tool that could show the scripts as i progress working on revit ,it can help me a lot to start learning to script…!