[[["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 2025-03-21 UTC."],[[["This document outlines the `Field.Types.Cardinality` enum, which defines the nature of a field within the Google.Protobuf framework."],["The enum has four possible values: `Optional`, `Repeated`, `Required`, and `Unknown`, each signifying a different field characteristic."],["`Required` is only used in Proto2 syntax, while `Optional` is for fields that may or may not be present, and `Repeated` represents a list of fields."],["`Unknown` cardinality is used for fields whose nature is undetermined, and the document includes three different versions of this field, with 3.27.1 being the most recent."]]],[]]
