virtual [TFuture](API\Runtime\Core\Async\TFuture)< [TOnlineResult](API\Plugins\OnlineServicesInterface\Online\TOnlineResult)< [FCreateSession](API\Plugins\OnlineServicesInterface\Online\FCreateSession) > > CreateSessionImpl ( const [FCreateSession::Params](API\Plugins\OnlineServicesInterface\Online\FCreateSession\Params) & Params )