Mob trigger "When Ranged Attack Preformed"

Says it all in the titles. Was directed by one of the devs to post this in the feature request tab. As it states when a ranged attack (or maybe even any attack) is preformed the mod would also preform an action. This would allow for mobs to provide potion effects upon them attacking, multiple projectile mobs, and etc. It would help me out a lot and would be a valuable trigger for mobs.