Thanks so much @fzngagan
Not sure why that def method did not show up when I searched the repo with that keyword; but that is exactly what I was looking for!
Thank you again!!
Edit: I see what happened. I did not look into that instance.rb file deep enough and stopped at the top of the file; but there were 23 entries for reloadable_patch in the file, and the def was at the bottom.
A “def reloadable_patch” in quotes search found it (just now) 
I’m starting to get addicted to Ruby, looking into every nook and cranny.