Thrown by the MutateRows when at least one Mutation failed. If the last failure was caused by an
RPC error (as opposed to a single entry failing), then this exception's cause will be set to that
error and #getFailedMutations() will contain synthetic errors for all of the entries that
were part of that RPC.
Retrieve all of the failed mutations. This list will contain failures for all of the mutations
that have failed across all of the retry attempts so far.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-18 UTC."],[],[]]