Enum listing the possible ad strengths.

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

| Enums ||
|---|---|
| ## `AVERAGE` | Average strength. |
| ## `EXCELLENT` | Excellent strength. |
| ## `GOOD` | Good strength. |
| ## `NO_ADS` | No ads could be generated. |
| ## `PENDING` | The ad strength is currently pending. |
| ## `POOR` | Poor strength. |
| ## `UNKNOWN` | Used for return value only. Represents value unknown in this version. |
| ## `UNSPECIFIED` | Not specified. |