bool CreateRoom ( const [FUniqueNetId](API\Runtime\CoreOnline\Online\FUniqueNetId) & UserId, const [FChatRoomId](API\Plugins\OnlineSubsystem\Interfaces\FChatRoomId) & RoomId, const [FString](API\Runtime\Core\Containers\FString) & Nickname, const [FChatRoomConfig](API\Plugins\OnlineSubsystem\Interfaces\FChatRoomConfig) & ChatRoomConfig )