Normally used to signal a copy command is done. Spanner does not currently support copies, so
send will throw a descriptive error to be sent to the user. Note that we do parse this in order
for this to be future proof, and to ensure the input stream is flushed of the command (in order
to continue receiving properly)
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-10-01 UTC."],[],[]]