public sealed class ExistenceFilter : IMessage<ExistenceFilter>, IEquatable<ExistenceFilter>, IDeepCloneable<ExistenceFilter>, IBufferMessage, IMessage
A digest of all the documents that match a given target.
[[["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 2025-06-12 UTC."],[[["This webpage details the `ExistenceFilter` class within the `Google.Cloud.Firestore.V1` namespace, which is used to provide a digest of documents matching a specified target."],["The latest version available is 3.10.0, and the page lists various past versions, from 2.3.0 to 3.9.0, of the `ExistenceFilter`."],["The `ExistenceFilter` class implements multiple interfaces including `IMessage`, `IEquatable`, `IDeepCloneable`, and `IBufferMessage`, along with inheriting members from the `Object` class."],["The class contains two properties, `Count` which is the total number of documents matching a specified `TargetId` and `TargetId` which is the identifier of the target the filter applies to."],["The class has two constructors, a default constructor `ExistenceFilter()` and a constructor that accepts an `ExistenceFilter` object."]]],[]]