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# init(fieldOfView:requestDeviceFitUpdates:presentCoachingAlerts:)

Create a visual fidelity data provider.

```
convenience init(fieldOfView: VisualFidelityProvider.FieldOfView? = nil, requestDeviceFitUpdates: Bool = false, presentCoachingAlerts: Bool = false)
```

## Parameters

`fieldOfView`

Field of view specification to monitor. Use Apple-defined presets (e.g., `.presetA`)
or `.polygon(points:)` for precise geometric control. Pass `nil` to skip
field of view monitoring. Default is `nil`.

`requestDeviceFitUpdates`

When true, device fit status will be included in fidelity data updates. Default is false.

`presentCoachingAlerts`

When true, system will automatically present user notifications with coaching tips when validation errors are detected. Default is false.

---

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