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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["\u003cp\u003eThe latest version available is 2.37.0-rc, with links to documentation for multiple previous versions, going back to version 2.10.1.\u003c/p\u003e\n"],["\u003cp\u003eThis page documents the \u003ccode\u003egoogle::cloud::FieldMaskOption\u003c/code\u003e struct across various versions.\u003c/p\u003e\n"],["\u003cp\u003eServer-side filtering is supported by using the \u003ccode\u003eX-Goog-FieldMask\u003c/code\u003e header to specify fields in responses.\u003c/p\u003e\n"],["\u003cp\u003eThe type alias associated with \u003ccode\u003egoogle::cloud::FieldMaskOption\u003c/code\u003e is \u003ccode\u003estd::string\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,[]]
