you can sometimes just tap enter, inside a model or another file (in a framework like Laravel for example), and it'll literally guess the entire function. at the most If you just make a comment about what the function should do, or name the function something sensible it'll get the whole function maybe 58% of the time, and when it's wrong there's other options to choose from and one might get you 90% to the end goal, and just need a few modifications.
I've used kite, and tabnine and loved tabnine, but this is something different and way more like magic. I can't explain how, it just feels like it's reading my brain as I type..