# UserIdentity Types conforming to this protocol can act as user identities for editors of a document. ``` protocol UserIdentity : Decodable, Encodable, Hashable, Sendable ``` ## Topics ### Inspecting an identity [`var stringRepresentation: String`](/documentation/Assignables/UserIdentity/stringRepresentation) String representation of this user identity for display or debugging purposes. [`var typeID: String`](/documentation/Assignables/UserIdentity/typeID) A unique type identifier for this user identity. ### Setting the scope [`func scope(() throws -> R) rethrows -> R`](/documentation/Assignables/UserIdentity/scope(_:)-esta) Sets the user identity for document-related operations that occur within the closure passed in. [`func scope(() async throws -> R) async rethrows -> R`](/documentation/Assignables/UserIdentity/scope(_:)-j2jq) Sets the user identity for document-related operations that occur within the async closure passed in. ### Getting a type eraser [`func eraseToAnyUserIdentity() -> AnyUserIdentity`](/documentation/Assignables/UserIdentity/eraseToAnyUserIdentity()) Wraps this user identity with a type eraser. [`typealias As`](/documentation/Assignables/UserIdentity/As) An alias for [`UserIdentityFactory`](/documentation/Assignables/UserIdentityFactory) for convenience. ## Relationships ### Inherits From [`Decodable`](/documentation/Swift/Decodable) [`Encodable`](/documentation/Swift/Encodable) [`SendableMetatype`](/documentation/Swift/SendableMetatype) [`Hashable`](/documentation/Swift/Hashable) [`Sendable`](/documentation/Swift/Sendable) [`Equatable`](/documentation/Swift/Equatable) ### Conforming Types [`StringUserIdentity`](/documentation/Assignables/StringUserIdentity) [`AnyUserIdentity`](/documentation/Assignables/AnyUserIdentity) [`AnonymousUserIdentity`](/documentation/Assignables/AnonymousUserIdentity) --- 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)