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# DockAccessory.TrackingState

A representation of the active tracking session state.

```
struct TrackingState
```

## Overview

The active tracking session emits this state 10 times per second.

## Topics

### Instance Properties

[`var description: String`](/documentation/DockKit/DockAccessory/TrackingState/description)

[`var time: Date`](/documentation/DockKit/DockAccessory/TrackingState/time)

The timestamp indicating when the dock captured the tracking state.

[`var trackedSubjects: [DockAccessory.TrackedSubjectType]`](/documentation/DockKit/DockAccessory/TrackingState/trackedSubjects)

A collection of actively tracked subjects.

## Relationships

### Conforms To

[`Sendable`](/documentation/Swift/Sendable)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

---

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