Optional. A unique username, if different from all the other identifiers
and account_id that are provided. Can be a unique login handle or
display name for a user.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-04 UTC."],[[["This documentation page covers the `UserId` class within the Google Cloud reCAPTCHA Enterprise v1 API, specifically version 2.10.0, with links to older and newer versions."],["The `UserId` class is designed to represent an identifier associated with a user and implements interfaces such as `IMessage`, `IEquatable`, `IDeepCloneable`, and `IBufferMessage`."],["The `UserId` class includes optional properties like `Email`, `PhoneNumber` (in E.164 format), and `Username`, offering different ways to identify a user."],["It also provides properties like `HasEmail`, `HasPhoneNumber`, `HasUsername`, and `IdOneofCase`, which help in determining the presence and type of identifier information."],["There are constructors available for creating `UserId` objects, including a parameterless constructor and one that takes another `UserId` instance as a copy source."]]],[]]