[TFuture](API\Runtime\Core\Async\TFuture)< [EConcertResponseCode](API\Plugins\ConcertTransport\EConcertResponseCode) > RestoreSession ( const [FGuid](API\Runtime\Core\Misc\FGuid) & ServerAdminEndpointId, const [FConcertCopySessionArgs](API\Plugins\ConcertClient\FConcertCopySessionArgs) & RestoreSessionArgs )