virtual void TriggerOnSessionParticipantLeftDelegates ( [FName](API\Runtime\Core\UObject\FName) Param1, const [FUniqueNetId](API\Runtime\CoreOnline\Online\FUniqueNetId) & Param2, [EOnSessionParticipantLeftReason](API\Plugins\OnlineSubsystem\Interfaces\EOnSessionParticipantLeftReason) Param3 )