Google services can filter the fields in a response using the X-Goog-FieldMask header. This can be useful in large responses, such as listing resources, where some of the fields are uninteresting.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-07-02 UTC."],[[["The latest version available is 2.37.0-rc, with the page listing version 2.29.0 as the current version being viewed."],["The page provides links to documentation for the `google::cloud::FieldMaskOption` struct across multiple versions, ranging from 2.10.1 up to the latest release candidate."],["Server-side filtering can be configured using the `X-Goog-FieldMask` header, which is beneficial for managing large responses by excluding unneeded fields."],["A Type Alias is provided, and it is `std::string`."]]],[]]