WeaponFireCallback/keyvalues/scripts/weapons/mp_weapon_smart_pistol.txt

WeaponData
{
	"OnWeaponPrimaryAttack"							"WeaponFireCallbacks_OnWeaponPrimaryAttack_weapon_smart_pistol"
    "OnWeaponNpcPrimaryAttack"						"WeaponFireCallbacks_OnWeaponNpcPrimaryAttack"
}