You have probably encountered a feature called Magics in some of the Jypyter Notebook tutorials that you have studied. If not, magics are special codes that you can embed in a Jupyter code cell to do things that are not ordinary Python features.
One of the magics commands can be used to list all of the other magics commands as shown below.
%lsmagic
Author: Prof. Richard G. Baldwin
Affiliation: Professor of Computer Information Technology at Austin Community College in Austin, TX.
File: MagicsList01.html
Revised: 05/11/18
Copyright 2018 Richard G. Baldwin