void OnChildDeactivation ( [FBehaviorTreeSearchData](API\Runtime\AIModule\BehaviorTree\FBehaviorTreeSearchData) & SearchData, const [UBTNode](API\Runtime\AIModule\BehaviorTree\UBTNode) & ChildNode, [EBTNodeResult::Type](API\Runtime\AIModule\BehaviorTree\EBTNodeResult__Type) & NodeResult, const bool bRequestedFromValidInstance ) const