---
title: updateSettings
framework: appintents
role: symbol
role_heading: Instance Property
path: appintents/assistantschemas/booksintent/updatesettings
---

# updateSettings

The app intent conforms to the schema for updating settings for an ebook.

## Declaration

```swift
var updateSettings: some AssistantSchemas.Intent { get }
```

## Overview

Overview Use Swift macros that generate additional properties and add protocol conformance for your app intent implementation. The following example shows an app intent that conforms to the .books.updateSettings schema: @AppIntent(schema: .books.updateSettings) struct UpdateBookSettingsIntent: AppIntent {     @Parameter     var target: BookSettingsEntity

@Parameter     var page: Int?

@Parameter     var font: BookFont?

@Parameter     var theme: BookTheme?

@Parameter     var pageNavigationSetting: BookPageNavigationSetting?

@Parameter     var isTextJustified: Bool?

@Parameter     var isAllowMultipleColumns: Bool?

func perform() async throws -> some IntentResult {         .result()     } } For more information about the .books app intent domain, see doc:Making-ebook-actions-available-to-siri-and-apple-intelligence. For general information about app intent domains, see doc:Integrating-actions-with-siri-and-apple-intelligence.