---
title: extraAttributes
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avmutablemetadataitem/extraattributes
---

# extraAttributes

A dictionary of additional attributes for a metadata item.

## Declaration

```swift
var extraAttributes: [AVMetadataExtraAttributeKey : Any]? { get set }
```

## See Also

### Accessing values

- [value](avfoundation/avmutablemetadataitem/value.md)
- [dataType](avfoundation/avmutablemetadataitem/datatype.md)
- [stringValue](avfoundation/avmutablemetadataitem/stringvalue.md)
- [numberValue](avfoundation/avmutablemetadataitem/numbervalue.md)
- [dateValue](avfoundation/avmutablemetadataitem/datevalue.md)
- [dataValue](avfoundation/avmutablemetadataitem/datavalue.md)