public sealed class Answer.Types.GroundingSupport : IMessage<Answer.Types.GroundingSupport>, IEquatable<Answer.Types.GroundingSupport>, IDeepCloneable<Answer.Types.GroundingSupport>, IBufferMessage, IMessage
Reference documentation and code samples for the Discovery Engine v1 API class Answer.Types.GroundingSupport.
Indicates that this claim required grounding check. When the
system decided this claim didn't require attribution/grounding check,
this field is set to false. In that case, no grounding check was
done for the claim and therefore grounding_score, sources is not
returned.
A score in the range of [0, 1] describing how grounded is a specific
claim by the references.
Higher value means that the claim is better supported by the reference
chunks.
[[["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 Answer.Types.GroundingSupport (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.Answer.Types.GroundingSupport)\n- [1.8.0](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.8.0/Google.Cloud.DiscoveryEngine.V1.Answer.Types.GroundingSupport)\n- [1.7.0](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.7.0/Google.Cloud.DiscoveryEngine.V1.Answer.Types.GroundingSupport)\n- [1.6.0](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.6.0/Google.Cloud.DiscoveryEngine.V1.Answer.Types.GroundingSupport)\n- [1.5.0](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.5.0/Google.Cloud.DiscoveryEngine.V1.Answer.Types.GroundingSupport)\n- [1.4.0](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.4.0/Google.Cloud.DiscoveryEngine.V1.Answer.Types.GroundingSupport)\n- [1.3.0](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.3.0/Google.Cloud.DiscoveryEngine.V1.Answer.Types.GroundingSupport)\n- [1.2.0](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.2.0/Google.Cloud.DiscoveryEngine.V1.Answer.Types.GroundingSupport)\n- [1.1.0](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.1.0/Google.Cloud.DiscoveryEngine.V1.Answer.Types.GroundingSupport)\n- [1.0.0-beta06](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.0.0-beta06/Google.Cloud.DiscoveryEngine.V1.Answer.Types.GroundingSupport) \n\n public sealed class Answer.Types.GroundingSupport : IMessage\u003cAnswer.Types.GroundingSupport\u003e, IEquatable\u003cAnswer.Types.GroundingSupport\u003e, IDeepCloneable\u003cAnswer.Types.GroundingSupport\u003e, IBufferMessage, IMessage\n\nReference documentation and code samples for the Discovery Engine v1 API class Answer.Types.GroundingSupport.\n\nGrounding support for a claim in `answer_text`. \n\nInheritance\n-----------\n\n[object](https://learn.microsoft.com/dotnet/api/system.object) \\\u003e Answer.Types.GroundingSupport \n\nImplements\n----------\n\n[IMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IMessage-1.html)[Answer](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.Answer)[Types](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.Answer.Types)[GroundingSupport](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.Answer.Types.GroundingSupport), [IEquatable](https://learn.microsoft.com/dotnet/api/system.iequatable-1)[Answer](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.Answer)[Types](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.Answer.Types)[GroundingSupport](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.Answer.Types.GroundingSupport), [IDeepCloneable](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IDeepCloneable-1.html)[Answer](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.Answer)[Types](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.Answer.Types)[GroundingSupport](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.Answer.Types.GroundingSupport), [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### GroundingSupport()\n\n public GroundingSupport()\n\n### GroundingSupport(GroundingSupport)\n\n public GroundingSupport(Answer.Types.GroundingSupport other)\n\nProperties\n----------\n\n### EndIndex\n\n public long EndIndex { get; set; }\n\nRequired. End of the claim, exclusive.\n\n### GroundingCheckRequired\n\n public bool GroundingCheckRequired { get; set; }\n\nIndicates that this claim required grounding check. When the\nsystem decided this claim didn't require attribution/grounding check,\nthis field is set to false. In that case, no grounding check was\ndone for the claim and therefore `grounding_score`, `sources` is not\nreturned.\n\n### GroundingScore\n\n public double GroundingScore { get; set; }\n\nA score in the range of \\[0, 1\\] describing how grounded is a specific\nclaim by the references.\nHigher value means that the claim is better supported by the reference\nchunks.\n\n### HasGroundingCheckRequired\n\n public bool HasGroundingCheckRequired { get; }\n\nGets whether the \"grounding_check_required\" field is set\n\n### HasGroundingScore\n\n public bool HasGroundingScore { get; }\n\nGets whether the \"grounding_score\" field is set\n\n### Sources\n\n public RepeatedField\u003cAnswer.Types.CitationSource\u003e Sources { get; }\n\nOptional. Citation sources for the claim.\n\n### StartIndex\n\n public long StartIndex { get; set; }\n\nRequired. Index indicates the start of the claim, measured in bytes\n(UTF-8 unicode)."]]
