typedef TMulticastDelegate_ThreeParams< void, const FUniqueNetIdRef, const [FOnlineTournamentMatchIdRef](API\Plugins\OnlineSubsystem\Interfaces\FOnlineTournamentMatchIdRef), const [FAdditionalMetaDataMap](API\Plugins\OnlineSubsystem\Interfaces\FAdditionalMetaDataMap) & > FOnOnlineTournamentMatchJoined