Yandex and data-lazy-src

The image plugin creates the data-lazy-src attribute, and Yandex support service told me that they can index images only with the data-original or data-src attributes — does the Yandex robot not see the image?

link to the Yandex page https://yandex.ru/support/images/indexing.html