Enumerates AssetGroupSignal approval statuses, which are only used for Search Theme Signal.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v24/enums/asset_group_signal_approval_status.proto)

| Enums ||
|---|---|
| ## `APPROVED` | Search Theme is eligible to show ads. |
| ## `DISAPPROVED` | Search Theme is inactive and isn't showing ads. A disapproved Search Theme usually means there's an issue with one or more of our advertising policies. |
| ## `LIMITED` | Low search volume; Below first page bid estimate. |
| ## `UNDER_REVIEW` | Search Theme is under review. It won't be able to trigger ads until it's been reviewed. |
| ## `UNKNOWN` | The value is unknown in this version. |
| ## `UNSPECIFIED` | Not specified. |