Opaque caller-owned channel reference for transaction-lifetime stickiness.
The reference remains on a draining channel until its delegate shuts down. Call #useDifferentChannelOnNextCall() to move the next RPC to another active channel.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2026-10-05 UTC."],[],[]]
