Enum containing possible audience scope values.

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

| Enums ||
|---|---|
| ## `ASSET_GROUP` | The audience is scoped under a specific AssetGroup. |
| ## `CUSTOMER` | The audience is scoped at the customer level. |
| ## `UNKNOWN` | The received value is not known in this version. |
| ## `UNSPECIFIED` | The scope has not been specified. |