public sealed class AssistUserMetadata : IMessage<AssistUserMetadata>, IEquatable<AssistUserMetadata>, IDeepCloneable<AssistUserMetadata>, IBufferMessage, IMessage
Reference documentation and code samples for the Discovery Engine v1 API class AssistUserMetadata.
Optional. Preferred language to be used for answering if language detection
fails. Also used as the language of error messages created by actions,
regardless of language detection results.
[[["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 2025-08-28 UTC."],[],[],null,["# Discovery Engine v1 API - Class AssistUserMetadata (1.9.0)\n\nVersion latestkeyboard_arrow_down\n\n- [1.9.0 (latest)](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.AssistUserMetadata)\n- [1.8.0](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.8.0/Google.Cloud.DiscoveryEngine.V1.AssistUserMetadata)\n- [1.7.0](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.7.0/Google.Cloud.DiscoveryEngine.V1.AssistUserMetadata)\n- [1.6.0](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.6.0/Google.Cloud.DiscoveryEngine.V1.AssistUserMetadata)\n- [1.5.0](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.5.0/Google.Cloud.DiscoveryEngine.V1.AssistUserMetadata)\n- [1.4.0](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.4.0/Google.Cloud.DiscoveryEngine.V1.AssistUserMetadata)\n- [1.3.0](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.3.0/Google.Cloud.DiscoveryEngine.V1.AssistUserMetadata)\n- [1.2.0](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.2.0/Google.Cloud.DiscoveryEngine.V1.AssistUserMetadata)\n- [1.1.0](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.1.0/Google.Cloud.DiscoveryEngine.V1.AssistUserMetadata)\n- [1.0.0-beta06](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.0.0-beta06/Google.Cloud.DiscoveryEngine.V1.AssistUserMetadata) \n\n public sealed class AssistUserMetadata : IMessage\u003cAssistUserMetadata\u003e, IEquatable\u003cAssistUserMetadata\u003e, IDeepCloneable\u003cAssistUserMetadata\u003e, IBufferMessage, IMessage\n\nReference documentation and code samples for the Discovery Engine v1 API class AssistUserMetadata.\n\nUser metadata of the request. \n\nInheritance\n-----------\n\n[object](https://learn.microsoft.com/dotnet/api/system.object) \\\u003e AssistUserMetadata \n\nImplements\n----------\n\n[IMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IMessage-1.html)[AssistUserMetadata](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.AssistUserMetadata), [IEquatable](https://learn.microsoft.com/dotnet/api/system.iequatable-1)[AssistUserMetadata](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.AssistUserMetadata), [IDeepCloneable](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IDeepCloneable-1.html)[AssistUserMetadata](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.AssistUserMetadata), [IBufferMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IBufferMessage.html), [IMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IMessage.html) \n\nInherited Members\n-----------------\n\n[object.GetHashCode()](https://learn.microsoft.com/dotnet/api/system.object.gethashcode) \n[object.GetType()](https://learn.microsoft.com/dotnet/api/system.object.gettype) \n[object.ToString()](https://learn.microsoft.com/dotnet/api/system.object.tostring)\n\nNamespace\n---------\n\n[Google.Cloud.DiscoveryEngine.V1](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1)\n\nAssembly\n--------\n\nGoogle.Cloud.DiscoveryEngine.V1.dll\n\nConstructors\n------------\n\n### AssistUserMetadata()\n\n public AssistUserMetadata()\n\n### AssistUserMetadata(AssistUserMetadata)\n\n public AssistUserMetadata(AssistUserMetadata other)\n\nProperties\n----------\n\n### PreferredLanguageCode\n\n public string PreferredLanguageCode { get; set; }\n\nOptional. Preferred language to be used for answering if language detection\nfails. Also used as the language of error messages created by actions,\nregardless of language detection results.\n\n### TimeZone\n\n public string TimeZone { get; set; }\n\nOptional. IANA time zone, e.g. Europe/Budapest."]]
