# init(description:defaultUnit:requestValueDialog:inputConnectionBehavior:optionsProvider:) Creates an app intent parameter with a list of selectable options. ``` convenience init(description: LocalizedStringResource? = nil, defaultUnit: IntentParameter.DurationUnit? = nil, requestValueDialog: IntentDialog? = nil, inputConnectionBehavior: InputConnectionBehavior = .default, optionsProvider: OptionsProvider) where OptionsProvider : DynamicOptionsProvider, OptionsProvider.DefaultValue.ValueType == Duration ``` ## Parameters `description` Additional details about this parameter. `defaultUnit` The default unit that should be selected when this parameter is initially created. `requestValueDialog` A prompt that asks a person to provide the parameter value. `inputConnectionBehavior` An enum that indicates how this parameter receives the output from a preceding app intent. `optionsProvider` An object that determines selectable options for this parameter. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)