# GroupActivity.Sessions A type that provides asynchronous, sequential, iterated access to the sessions for the activity. ``` typealias Sessions = GroupSession.Sessions ``` ## Discussion A `Sessions` type contains a sequence of [`GroupSession`](/documentation/GroupActivities/GroupSession) objects specific to the current activity. The [`sessions()`](/documentation/GroupActivities/GroupActivity/sessions()) method returns this type, and you use it to retrieve the current session, if any, for that activity. The system creates only one [`GroupSession`](/documentation/GroupActivities/GroupSession) object for each new activity. To detect changes to the session’s state, activity type, or active participants, subscribe to the corresponding properties. --- 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)