Getting started with iOS playground

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//
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//  Copyright © 2017-2026 PSPDFKit GmbH. All rights reserved.
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//
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//  The Nutrient sample applications are licensed with a modified BSD license.
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//  Please see License for details. This notice may not be removed from this file.
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//
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import PSPDFKit
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import PSPDFKitUI
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class PlaygroundExample: Example {
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    override init() {
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        super.init()
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        contentDescription = "Start here!"
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        category = .top
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        targetDevice = [.vision, .phone, .pad]
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        priority = 1
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    }
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    override func invoke(with delegate: ExampleRunnerDelegate) -> UIViewController {
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        // Playground is convenient for testing
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        let document = AssetLoader.writableDocument(for: .welcome, overrideIfExists: false)
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        let controller = AdaptivePDFViewController(document: document) {
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            // Use the configuration to set main options for the Nutrient UI.
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            $0.signatureStore = KeychainSignatureStore()
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            $0.signatureCreationConfiguration.usePencilKit = true
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        }
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        return controller
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    }
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}