public sealed class SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelPromptSpec : IMessage<SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelPromptSpec>, IEquatable<SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelPromptSpec>, IDeepCloneable<SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelPromptSpec>, IBufferMessage, IMessage
Reference documentation and code samples for the Discovery Engine v1beta API class SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelPromptSpec.
Specification of the prompt to use with the model.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eThe latest version of the \u003ccode\u003eModelPromptSpec\u003c/code\u003e class is \u003ccode\u003e1.0.0-beta18\u003c/code\u003e, which is part of the Discovery Engine v1beta API.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eModelPromptSpec\u003c/code\u003e defines the specifications for the prompt to be used with the model within the context of the \u003ccode\u003eSearchRequest\u003c/code\u003e, \u003ccode\u003eContentSearchSpec\u003c/code\u003e, and \u003ccode\u003eSummarySpec\u003c/code\u003e types.\u003c/p\u003e\n"],["\u003cp\u003eThis class inherits from \u003ccode\u003eobject\u003c/code\u003e and implements interfaces like \u003ccode\u003eIMessage\u003c/code\u003e, \u003ccode\u003eIEquatable\u003c/code\u003e, \u003ccode\u003eIDeepCloneable\u003c/code\u003e, and \u003ccode\u003eIBufferMessage\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eModelPromptSpec\u003c/code\u003e class includes constructors for creating instances, either default or by cloning another \u003ccode\u003eModelPromptSpec\u003c/code\u003e instance.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eModelPromptSpec\u003c/code\u003e class includes a \u003ccode\u003ePreamble\u003c/code\u003e property, which is a string that contains instructions for the assistant at the beginning of the prompt.\u003c/p\u003e\n"]]],[],null,["# Discovery Engine v1beta API - Class SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelPromptSpec (1.0.0-beta19)\n\nVersion latestkeyboard_arrow_down\n\n- [1.0.0-beta19 (latest)](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1Beta/latest/Google.Cloud.DiscoveryEngine.V1Beta.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelPromptSpec)\n- [1.0.0-beta18](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1Beta/1.0.0-beta18/Google.Cloud.DiscoveryEngine.V1Beta.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelPromptSpec) \n\n public sealed class SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelPromptSpec : IMessage\u003cSearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelPromptSpec\u003e, IEquatable\u003cSearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelPromptSpec\u003e, IDeepCloneable\u003cSearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelPromptSpec\u003e, IBufferMessage, IMessage\n\nReference documentation and code samples for the Discovery Engine v1beta API class SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelPromptSpec.\n\nSpecification of the prompt to use with the model. \n\nInheritance\n-----------\n\n[object](https://learn.microsoft.com/dotnet/api/system.object) \\\u003e SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelPromptSpec \n\nImplements\n----------\n\n[IMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IMessage-1.html)[SearchRequest](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1Beta/latest/Google.Cloud.DiscoveryEngine.V1Beta.SearchRequest)[Types](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1Beta/latest/Google.Cloud.DiscoveryEngine.V1Beta.SearchRequest.Types)[ContentSearchSpec](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1Beta/latest/Google.Cloud.DiscoveryEngine.V1Beta.SearchRequest.Types.ContentSearchSpec)[Types](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1Beta/latest/Google.Cloud.DiscoveryEngine.V1Beta.SearchRequest.Types.ContentSearchSpec.Types)[SummarySpec](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1Beta/latest/Google.Cloud.DiscoveryEngine.V1Beta.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec)[Types](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1Beta/latest/Google.Cloud.DiscoveryEngine.V1Beta.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types)[ModelPromptSpec](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1Beta/latest/Google.Cloud.DiscoveryEngine.V1Beta.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelPromptSpec), [IEquatable](https://learn.microsoft.com/dotnet/api/system.iequatable-1)[SearchRequest](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1Beta/latest/Google.Cloud.DiscoveryEngine.V1Beta.SearchRequest)[Types](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1Beta/latest/Google.Cloud.DiscoveryEngine.V1Beta.SearchRequest.Types)[ContentSearchSpec](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1Beta/latest/Google.Cloud.DiscoveryEngine.V1Beta.SearchRequest.Types.ContentSearchSpec)[Types](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1Beta/latest/Google.Cloud.DiscoveryEngine.V1Beta.SearchRequest.Types.ContentSearchSpec.Types)[SummarySpec](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1Beta/latest/Google.Cloud.DiscoveryEngine.V1Beta.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec)[Types](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1Beta/latest/Google.Cloud.DiscoveryEngine.V1Beta.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types)[ModelPromptSpec](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1Beta/latest/Google.Cloud.DiscoveryEngine.V1Beta.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelPromptSpec), [IDeepCloneable](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IDeepCloneable-1.html)[SearchRequest](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1Beta/latest/Google.Cloud.DiscoveryEngine.V1Beta.SearchRequest)[Types](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1Beta/latest/Google.Cloud.DiscoveryEngine.V1Beta.SearchRequest.Types)[ContentSearchSpec](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1Beta/latest/Google.Cloud.DiscoveryEngine.V1Beta.SearchRequest.Types.ContentSearchSpec)[Types](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1Beta/latest/Google.Cloud.DiscoveryEngine.V1Beta.SearchRequest.Types.ContentSearchSpec.Types)[SummarySpec](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1Beta/latest/Google.Cloud.DiscoveryEngine.V1Beta.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec)[Types](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1Beta/latest/Google.Cloud.DiscoveryEngine.V1Beta.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types)[ModelPromptSpec](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1Beta/latest/Google.Cloud.DiscoveryEngine.V1Beta.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelPromptSpec), [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.V1Beta](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1Beta/latest/Google.Cloud.DiscoveryEngine.V1Beta)\n\nAssembly\n--------\n\nGoogle.Cloud.DiscoveryEngine.V1Beta.dll\n\nConstructors\n------------\n\n### ModelPromptSpec()\n\n public ModelPromptSpec()\n\n### ModelPromptSpec(ModelPromptSpec)\n\n public ModelPromptSpec(SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelPromptSpec other)\n\nProperties\n----------\n\n### Preamble\n\n public string Preamble { get; set; }\n\nText at the beginning of the prompt that instructs the assistant.\nExamples are available in the user guide."]]
