Assistive Touch Feature

Greetings!
As of yesterday I was having some issues with my home button that led me to use assistive touch (thankfully it is now working once more) and I found a weird option setting it up.
When you choose what you want to pop up in the menus there is an option for "diagnostics" (sorry if it isn't the exact term in english, my phone is in another language) which I don't recall existing before. Using this function shows the message "assistive touch is collecting diagnostics" but I can't seem to find what is that all about. Does anybody have a clue on what it does?