This indicates the types of entities that the field may apply to when used
as an option. If it is unset, then the field may be freely used as an
option on any kind of entity. Note: as of January 2023, support for this is
in progress and does not yet have an effect (b/264593489).
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-09-19 UTC."],[],[],null,[]]
