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# requestToBecomeApplicationPrimary()

Attempts to make this session your app’s primary media session.

```
@MainActor func requestToBecomeApplicationPrimary() async throws
```

## Discussion

Use this method to signal to the system that this session supplies data and handles commands.

> Throws: ``doc://com.apple.nowplaying/documentation/NowPlaying/MediaSessionError/invalidState`` if the session can’t become active.
> ``doc://com.apple.nowplaying/documentation/NowPlaying/MediaSessionError/internalFailure`` if the system couldn’t set the active player.

---

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