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# refreshPIRParameters(forExtensionWithIdentifier:)

Communicates with the system to refetch Private Information Retrieval (PIR) parameters from the server.

```
func refreshPIRParameters(forExtensionWithIdentifier identifier: String) async throws
```

## Parameters

`identifier`

The identifier for the app extension.

## Discussion

This throws an error when the system can’t referesh the PIR parameters.

---

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