Smart campaign statuses.

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

| Enums ||
|---|---|
| ## `ELIGIBLE` | The campaign is eligible to serve. |
| ## `ENDED` | The campaign has ended. |
| ## `NOT_ELIGIBLE` | The campaign is not eligible to serve and has issues that may require intervention. |
| ## `PAUSED` | The campaign was paused. |
| ## `PENDING` | The campaign is pending the approval of at least one ad. |
| ## `REMOVED` | The campaign has been removed. |
| ## `UNKNOWN` | The received value is not known in this version. This is a response-only value. |
| ## `UNSPECIFIED` | The status has not been specified. |