A Demand Gen carousel ad.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v26/common/ad_type_infos.proto)

| Fields ||
|---|---|
| ## `business_name` | `string` Required. The Advertiser/brand name. |
| ## `call_to_action_text` | `string` Call to action text. |
| ## `carousel_cards[]` | `https://developers.google.com/google-ads/api/reference/rpc/v26/AdDemandGenCarouselCardAsset` Required. Carousel cards that will display with the ad. Min 2 max 10. |
| ## `description` | `https://developers.google.com/google-ads/api/reference/rpc/v26/AdTextAsset` Required. The descriptive text of the ad. |
| ## `headline` | `https://developers.google.com/google-ads/api/reference/rpc/v26/AdTextAsset` Required. Headline of the ad. |
| ## `logo_image` | `https://developers.google.com/google-ads/api/reference/rpc/v26/AdImageAsset` Required. Logo image to be used in the ad. The minimum size is 128x128 and the aspect ratio must be 1:1 (+-1%). |