Anatomy of the eSIM profile

In the eSIM universe, *eSIM profiles* are the virtualised content of a classic USIM (possibly with ISIM, CSIM, applets, etc.). Let's have a look what an eSIM profile is: * how is the data structured / organized? * what data can be represented in it? * how to handle features provided by eUICC, how can the eSIM profile mandate some of them? * how does personalization of eSIM profiles work? There will be some hands-on navigation through profiles, based on the `pySim.esim.saip` module.