---
title: contentType
framework: appintents
role: symbol
role_heading: Instance Property
path: appintents/appschema/booksenum/contenttype
---

# contentType

An enum schema for a content type parameter.

## Declaration

```swift
var contentType: some AppSchemaEnum { get }
```

## Discussion

Discussion To make your app’s parameter types available to Apple Intelligence, conform your AppEnum to a schema that describes a parameter’s possible values to the system. If your app’s functionality aligns with the books domain and a parameter type matches the contentType schema, you can generate the protocol conformance the schema requires for your app enum implementation with the @AppEnum( .books.contentType) Swift macro. To make your app work with Siri, see Apple Intelligence and Siri AI. The following example shows an app enum that conforms to the contentType schema: @AppEnum(schema: .books.contentType) enum BookContentType: String {     case <#BookContentType Case#>

static let caseDisplayRepresentations: [Self: DisplayRepresentation] = [         <#DisplayRepresentations#>     ] } The schema supports the following system experiences: Shortcuts For more information about the App Intents framework and the experiences it supports, see Getting started with the App Intents framework.

## See Also

### Types for static parameters

- [font](appintents/appschema/booksenum/font.md)
- [fontSize](appintents/appschema/booksenum/fontsize.md)
- [navigationDirection](appintents/appschema/booksenum/navigationdirection.md)
- [pageNavigationSetting](appintents/appschema/booksenum/pagenavigationsetting.md)
- [relativeCharacterSpacingChange](appintents/appschema/booksenum/relativecharacterspacingchange.md)
- [relativeFontChange](appintents/appschema/booksenum/relativefontchange.md)
- [relativeLineSpacingChange](appintents/appschema/booksenum/relativelinespacingchange.md)
- [relativeWordSpacingChange](appintents/appschema/booksenum/relativewordspacingchange.md)
- [theme](appintents/appschema/booksenum/theme.md)
- [AppSchema.BooksEnum](appintents/appschema/booksenum.md)