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

# contentType

The content type.

## Declaration

```swift
var contentType: some AssistantSchemas.Enum { get }
```

## Overview

Overview Use Swift macros that generate additional properties and add protocol conformance for your app enum implementation. The following example shows an app enum that conforms to the .books.contentType schema: @AppEnum(schema: .books.contentType) enum BookContentType: AppEnum {     case book     case pdf

static var caseDisplayRepresentations: [BookContentType: AppIntents.DisplayRepresentation] = [         .book: "Book",         .pdf: "PDF",     ] }  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>.