Gameplay Ability System why is ActivateAbilityFromEvent Node not in c++

[kdisplayname]

same question here
edit - I guess coz its already an option.

UE_API virtual void ActivateAbility(const FGameplayAbilitySpecHandle Handle, const FGameplayAbilityActorInfo* ActorInfo, const FGameplayAbilityActivationInfo ActivationInfo, const FGameplayEventData TriggerEventData*);