Enum describing the possible performance labels of an asset, usually computed in the context of a linkage.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v25/enums/asset_performance_label.proto)

| Enums ||
|---|---|
| ## `BEST` | Best performing assets. |
| ## `GOOD` | Good performing assets. |
| ## `LEARNING` | The asset has started getting impressions but the stats are not statistically significant enough to get an asset performance label. |
| ## `LOW` | Worst performing assets. |
| ## `NOT_APPLICABLE` | Performance label cannot be assigned to this asset. This may be because it's not used by asset based creatives. |
| ## `PENDING` | This asset does not yet have any performance informantion. This may be because it is still under review. |
| ## `UNKNOWN` | Used for return value only. Represents value unknown in this version. |
| ## `UNSPECIFIED` | Not specified. |