is it possible to add a healing pistol? so player can heal anyone got shot

[Cid]

i think it would be fun to add the equivalent of a sniper that heals teammates
like medic crossbow in team fortress

borderlands 1 defender class has a shoot your teammates to heal them perk. Pretty busted combined with the AOE healing perk, especially if you use a shotgun. Or one of those shotgun revolvers at a distance.