getBehaviorOrNull
Gets the first ItemBehavior that is an instance of T, or null if there is none.
Gets the first ItemBehavior that is an instance of type or a subclass, or null if there is none.
Gets the first ItemBehavior that is an instance of T, or null if there is none.
Gets the first ItemBehavior that is an instance of type or a subclass, or null if there is none.