I feel like this should be easier to find. Aug '19, I've searched google and stack with no easy answers.
In Blender 2.8:
I'm looking for the code similar to Print("MY_MESSAGE") into the Info window. Obviously it's easy to use Print('...') into the System Console - sys console unrelated to this question.
I'm looking for any sample code I can literally copy paste into my Blender Text Editor window and run with results.
tldr: one-liner print shit to Info window, pls how?!