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# openBook

The app intent conforms to the schema for opening an ebook.

```
var openBook: some AssistantSchemas.Intent { get }
```

## 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.openBook` schema:

```swift
@AppIntent(schema: .books.openBook)
struct OpenBookIntent: OpenIntent {
    @Parameter
    var target: BookEntity

    func perform() async throws -> some IntentResult {
        .result()
    }
}
```

For more information about the `.books` app intent domain,
see [Books](/documentation/AppIntents/app-schema-domain-books).
For general information about app intent domains, see [Making actions and content discoverable by Apple Intelligence](/documentation/AppIntents/making-actions-and-content-discoverable-by-apple-intelligence).

---

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