# init(dictionary:) Creates a properties object with a dictionary of property states. ``` init(dictionary propertiesDictionary: [CMIOExtensionProperty : CMIOExtensionPropertyState]) ``` ## Parameters `propertiesDictionary` The dictionary of properties and their states. --- 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)