# CmcdConfiguration.CmcdKey

# CmcdConfiguration.CmcdKey

Artifact: [androidx.media3:media3-exoplayer](https://developer.android.com/jetpack/androidx/releases/media3)  
[View Source](https://cs.android.com/search?q=file:androidx/media3/exoplayer/upstream/CmcdConfiguration.java+class:androidx.media3.exoplayer.upstream.CmcdConfiguration.CmcdKey)

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Kotlin \|[Java](https://developer.android.com/reference/androidx/media3/exoplayer/upstream/CmcdConfiguration.CmcdKey "View this page in Java")


```
@Retention(value = RetentionPolicy.SOURCE)
@StringDef(value = )
@Documented
@Target(value = ElementType.TYPE_USE)
annotation CmcdConfiguration.CmcdKey
```

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Indicates that the annotated element represents a CMCD key.