An action item to improve the ad strength of an asset group.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v25/resources/asset_group.proto)

| Fields ||
|---|---|
| ## `action_details` Union field. The details of this action item. `action_details` can be only one of the following: ||
| ### `add_asset_details` | `https://developers.google.com/google-ads/api/reference/rpc/v25/AdStrengthActionItem.AddAssetDetails` Output only. The action item details for action item type ADD_ASSET. |
| ## `action_item_type` | `https://developers.google.com/google-ads/api/reference/rpc/v25/AdStrengthActionItemTypeEnum.AdStrengthActionItemType` Output only. The action item type. |