[[["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 2025-06-12 UTC."],[[["Version 3.15.8 of the `Google.Protobuf` library defines an abstract `Extension` class, which is experimental and subject to change."],["The `Extension` class inherits from the `Object` class and has derived types `Extension\u003cTTarget, TValue\u003e` and `RepeatedExtension\u003cTTarget, TValue\u003e`."],["The `Extension` class provides a constructor that takes an integer `fieldNumber` parameter."],["The `Extension` class includes a `FieldNumber` property that returns the field number associated with the extension."]]],[]]