- [JSON representation](https://developers.google.com/display-video/api/reference/rest/v4/YoutubeAssetAssociationLinkedEntity#SCHEMA_REPRESENTATION)

The entity that the association linked the YouTube asset to.

| JSON representation |
|---|
| ``` { // The following is a list of mutually exclusive fields. At most one of the // fields will be set in a response: "lineItemId": string, "adGroupId": string // End of mutually exclusive fields. } ``` |

| Fields ||
|---|---|
| The entity to associate with the YouTube asset. The following is a list of mutually exclusive fields. At most one of the fields will be set in a response: ||
| `lineItemId` | `string (https://developers.google.com/discovery/v1/type-format format)` The ID of a line item. |
| `adGroupId` | `string (https://developers.google.com/discovery/v1/type-format format)` The ID of an ad group. |
| End of mutually exclusive fields. ||