Smart Design technology
Smart Design is a proprietary Yandex Advertising Network technology powered by machine learning. It automatically builds ads with various extensions — such as sitelinks or the app store rating.
When a user arrives at a site, the Smart Design algorithm instantly analyzes information about the user, the site, and data from the advertiser to create the optimal ad layout. The algorithm can decide to swap an image for a video, to add more sitelinks, or to include a button or text. As a result, all ads designed by the Smart Design algorithm will look unique. For example:

Advertisers can embellish their ads with various additions via Yandex Direct. At the same time, Smart Design adds things that would make sense for a particular user on a specific site at the moment of the impression.
If a certain ad format is updated with new additions, you don't have to manually configure anything or re-embed your ad code. Smart Design technology takes care of all updates automatically.