# GroupSessionJournal.Attachment A container for the data you download. ``` struct Attachment ``` ## Overview When your app receives a new item, the system packages it in an [`GroupSessionJournal.Attachment`](/documentation/GroupActivities/GroupSessionJournal/Attachment) and delivers it to your app. Use this container type to download the contents of the file and decode it to a type that your app recognizes. ## Topics ### Downloading the attachment data [`func load(AttachmentType.Type) async throws -> AttachmentType`](/documentation/GroupActivities/GroupSessionJournal/Attachment/load(_:)) Downloads the attachment data and asynchronously delivers it as the type you specify. [`func loadMetadata(of: MetadataType.Type) async throws -> MetadataType`](/documentation/GroupActivities/GroupSessionJournal/Attachment/loadMetadata(of:)) Downloads the metadata for the attachment asynchronously and delivers it as the type you specify. ### Identifying the attachment [`var id: UUID`](/documentation/GroupActivities/GroupSessionJournal/Attachment/id) The unique identifier for this attachment. ## Relationships ### Conforms To [`SendableMetatype`](/documentation/Swift/SendableMetatype) [`Sendable`](/documentation/Swift/Sendable) [`Identifiable`](/documentation/Swift/Identifiable) --- 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)