- [JSON representation](https://developers.google.com/analytics/devguides/reporting/data/v1/rest/v1alpha/AudienceDimension#SCHEMA_REPRESENTATION)

An audience dimension is a user attribute. Specific user attributed are requested and then later returned in the `QueryAudienceListResponse`.

| JSON representation |
|---|
| ``` { "dimensionName": string } ``` |

| Fields ||
|---|---|
| `dimensionName` | `string` Optional. The API name of the dimension. See the [API Dimensions](https://developers.google.com/analytics/devguides/reporting/data/v1/audience-list-api-schema#dimensions) for the list of dimension names. |