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# didUpdate(_:)

Provides an array of new and updated contact items to the observer.

```
func didUpdate(_ items: [ContactItem])
```

## Parameters

`items`

The new and updated items.

## Discussion

You can call this method multiple times to fulfill the [`suggestedBatchSize`](/documentation/ContactProvider/ContactItemChangeObserver/suggestedBatchSize).
The observer creates the new contact items and updates the existing contact items with their new values.

---

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