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# AVMetadataBodyObject

An abstract class that defines the interface for a metadata body object.

```
class AVMetadataBodyObject
```

## Overview

A metadata body object represents a single detected body in a picture. It’s the base object used to represent bodies, for example [`AVMetadataHumanBodyObject`](/documentation/AVFoundation/AVMetadataHumanBodyObject), [`AVMetadataDogBodyObject`](/documentation/AVFoundation/AVMetadataDogBodyObject), and [`AVMetadataCatBodyObject`](/documentation/AVFoundation/AVMetadataCatBodyObject).

## Topics

### Inspecting metadata

[`bodyID`](/documentation/AVFoundation/AVMetadataBodyObject/bodyID)

An integer value that defines the unique identifier of an object in a picture.


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