Set the time when this model expires, in milliseconds since the epoch. If not present, the
model persists indefinitely. Expired models will be deleted.
When used with BigQuery#update(ModelInfo, ModelOption...), setting labels
to null removes all labels; otherwise all keys that are mapped to null values
are removed and other keys are updated to their respective values.
[[["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 2024-12-18 UTC."],[],[]]
