[[["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 2025-04-01 UTC."],[[["The latest version of the Firestore API class Precondition is 3.10.0, with several prior versions available for reference, down to version 2.3.1."],["The Precondition class is an immutable class within the Google Cloud Firestore API, designed to specify conditions for update operations."],["Key properties within the Precondition class include `Exists`, which determines if a document must or must not exist, and `LastUpdateTime`, which sets the required last update time of a document."],["The class provides static properties like `MustExist` to enforce document existence and `None` to indicate no preconditions."],["The `LastUpdated(Timestamp)` method allows the creation of a precondition that requires a specific last update time for the document."]]],[]]
