[TFuture](API\Runtime\Core\Async\TFuture)< [EConcertResponseCode](API\Plugins\ConcertTransport\EConcertResponseCode) > RenameSession ( const [FGuid](API\Runtime\Core\Misc\FGuid) & ServerAdminEndpointId, const [FGuid](API\Runtime\Core\Misc\FGuid) & SessionId, const [FString](API\Runtime\Core\Containers\FString) & NewName )