Snowball damage

public function hasarVerme(EntityDamageEvent $e){
if($e instanceof EntityDamageByChildEntityEvent){
$child = $e->getChild();
if($child instanceof Snowball){
$event->setModifier(5, EntityDamageEvent::CAUSE_ENTITY_ATTACK);
}
}
}

Code is not work ? Pls help

 

Change $event to $e

 

Woow MyBad