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# metadataItems(from:withKey:keySpace:)

Returns metadata items that match a specified key or key space.

```
class func metadataItems(from metadataItems: [AVMetadataItem], withKey key: Any?, keySpace: AVMetadataKeySpace?) -> [AVMetadataItem]
```

## Parameters

`metadataItems`

The metadata items to filter.

`key`

The key of the metadata items to retrieve, or `nil` if you don’t want to filter by key.

`keySpace`

The key space of the metadata items to retrieve, or `nil` if you don’t want to filter by key space.

## Return Value

An array of metadata items that match the specified key and key space.

## Discussion

---

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