The value must be a UTF-8 encoded string with a length limit of 128
characters, and match the pattern: [a-zA-Z][a-zA-Z0-9_]*. For example,
id0LikeThis or ID_1_LIKE_THIS. Otherwise, an INVALID_ARGUMENT error is
returned.
[[["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 2025-04-17 UTC."],[[["The `Promotion` class in the Google Cloud Retail V2 API provides information about promotions, and can be accessed through various versions, with the latest being 2.12.0."],["This class is found within the `Google.Cloud.Retail.V2` namespace and is part of the `Google.Cloud.Retail.V2.dll` assembly."],["It inherits from `object` and implements interfaces like `IMessage`, `IEquatable`, `IDeepCloneable`, and `IBufferMessage`, allowing for cloning and equality comparisons."],["The `Promotion` class has a `PromotionId` property, which is a string representing the unique identifier of a promotion and must be UTF-8 encoded."],["The `Promotion` class has a default constructor, and one that accepts an existing `Promotion` object as an argument."]]],[]]
