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# addRequest(_:)

Adds the request as a candidate of this composite request.

```
mutating func addRequest(_ request: any MobileDocumentRawDataRequest)
```

## Parameters

`request`

The child request.

## Discussion> Note: A request isn’t considered valid if it contains requests that are not raw data requests.
> If you call ``doc://com.apple.ProximityReader/documentation/ProximityReader/MobileDocumentReaderSession/requestDocument(_:)`` with an invalid
> request, the framework throws a ``doc://com.apple.ProximityReader/documentation/ProximityReader/MobileDocumentReaderError/invalidRequest`` error.

---

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