Contains the usage information of the asset.

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

| Fields ||
|---|---|
| ## `asset` | `string` Resource name of the asset. |
| ## `served_asset_field_type` | `https://developers.google.com/google-ads/api/reference/rpc/v26/ServedAssetFieldTypeEnum.ServedAssetFieldType` The served field type of the asset. |