Yup, you(/sibling comments) have it correct, it's to mark it as private. Not sure where I got it from, it just seems clean. I don't think I see this super freq

Yup, you(/sibling comments) have it correct, it's to mark it as private. Not sure where I got it from, it just seems clean. I don't think I see this super frequently in the ecosystem at large, although anything I've had a hand in will tend to use this style!