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    • Classes
      • protos.google.cloud.discoveryengine.v1
        • BigQuerySource
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        • CompletionInfo
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        • ConditionBoostSpec
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        • DocumentInfo
        • DocumentService
        • Facet
        • FacetKey
        • FacetSpec
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        • GcsSource
        • GetConversationRequest
        • GetDocumentRequest
        • GetSchemaRequest
        • ImageQuery
        • ImportDocumentsMetadata
        • ImportDocumentsRequest
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        • ImportErrorConfig
        • ImportUserEventsMetadata
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        • InlineSource
        • InlineSource
        • Interval
        • ListConversationsRequest
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        • ListSchemasRequest
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        • QueryExpansionInfo
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        • SafetyAttributes
        • Schema
        • SchemaService
        • SearchInfo
        • SearchRequest
        • SearchResponse
        • SearchResult
        • SearchService
        • SnippetSpec
        • SpellCorrectionSpec
        • Summary
        • SummarySpec
        • TextInput
        • TransactionInfo
        • UpdateConversationRequest
        • UpdateDocumentRequest
        • UpdateSchemaMetadata
        • UpdateSchemaRequest
        • UserEvent
        • UserEventService
        • UserInfo
        • WriteUserEventRequest
      • protos.google.cloud.discoveryengine.v1alpha
        • BigQuerySource
        • BoostSpec
        • CollectUserEventRequest
        • CompleteQueryRequest
        • CompleteQueryResponse
        • CompletionInfo
        • CompletionService
        • ConditionBoostSpec
        • Content
        • ContentSearchSpec
        • Conversation
        • ConversationContext
        • ConversationMessage
        • ConversationalSearchService
        • ConverseConversationRequest
        • ConverseConversationResponse
        • CreateConversationRequest
        • CreateDocumentRequest
        • CreateSchemaMetadata
        • CreateSchemaRequest
        • CustomAttribute
        • DeleteConversationRequest
        • DeleteDocumentRequest
        • DeleteSchemaMetadata
        • DeleteSchemaRequest
        • Document
        • DocumentInfo
        • DocumentService
        • DoubleList
        • EmbeddingSpec
        • EmbeddingVector
        • ExtractiveContentSpec
        • Facet
        • FacetKey
        • FacetSpec
        • FacetValue
        • FailureInfo
        • FailureReason
        • FieldConfig
        • GcsSource
        • GeoSearchDebugInfo
        • GetConversationRequest
        • GetDocumentRequest
        • GetSchemaRequest
        • GuidedSearchResult
        • ImageQuery
        • ImportDocumentsMetadata
        • ImportDocumentsRequest
        • ImportDocumentsResponse
        • ImportErrorConfig
        • ImportUserEventsMetadata
        • ImportUserEventsRequest
        • ImportUserEventsResponse
        • InlineSource
        • InlineSource
        • Interval
        • ListConversationsRequest
        • ListConversationsResponse
        • ListDocumentsRequest
        • ListDocumentsResponse
        • ListSchemasRequest
        • ListSchemasResponse
        • MediaInfo
        • PageInfo
        • PanelInfo
        • PurgeDocumentsMetadata
        • PurgeDocumentsRequest
        • PurgeDocumentsResponse
        • PurgeUserEventsMetadata
        • PurgeUserEventsRequest
        • PurgeUserEventsResponse
        • QueryExpansionInfo
        • QueryExpansionSpec
        • QuerySuggestion
        • RecommendRequest
        • RecommendResponse
        • RecommendationResult
        • RecommendationService
        • RecrawlUrisMetadata
        • RecrawlUrisRequest
        • RecrawlUrisResponse
        • Reference
        • RefinementAttribute
        • Reply
        • SafetyAttributes
        • Schema
        • SchemaService
        • SearchInfo
        • SearchRequest
        • SearchResponse
        • SearchResult
        • SearchService
        • SiteSearchEngineService
        • SnippetSpec
        • SpellCorrectionSpec
        • Summary
        • SummarySpec
        • TextInput
        • TransactionInfo
        • UpdateConversationRequest
        • UpdateDocumentRequest
        • UpdateSchemaMetadata
        • UpdateSchemaRequest
        • UserEvent
        • UserEventService
        • UserInfo
        • WriteUserEventRequest
      • protos.google.cloud.discoveryengine.v1beta
        • BigQuerySource
        • BoostSpec
        • CollectUserEventRequest
        • CompleteQueryRequest
        • CompleteQueryResponse
        • CompletionInfo
        • CompletionService
        • ConditionBoostSpec
        • Content
        • ContentSearchSpec
        • Conversation
        • ConversationContext
        • ConversationMessage
        • ConversationalSearchService
        • ConverseConversationRequest
        • ConverseConversationResponse
        • CreateConversationRequest
        • CreateDocumentRequest
        • CreateSchemaMetadata
        • CreateSchemaRequest
        • CustomAttribute
        • DeleteConversationRequest
        • DeleteDocumentRequest
        • DeleteSchemaMetadata
        • DeleteSchemaRequest
        • Document
        • DocumentInfo
        • DocumentService
        • DoubleList
        • EmbeddingSpec
        • EmbeddingVector
        • ExtractiveContentSpec
        • Facet
        • FacetKey
        • FacetSpec
        • FacetValue
        • GcsSource
        • GetConversationRequest
        • GetDocumentRequest
        • GetSchemaRequest
        • GuidedSearchResult
        • ImageQuery
        • ImportDocumentsMetadata
        • ImportDocumentsRequest
        • ImportDocumentsResponse
        • ImportErrorConfig
        • ImportUserEventsMetadata
        • ImportUserEventsRequest
        • ImportUserEventsResponse
        • InlineSource
        • InlineSource
        • Interval
        • ListConversationsRequest
        • ListConversationsResponse
        • ListDocumentsRequest
        • ListDocumentsResponse
        • ListSchemasRequest
        • ListSchemasResponse
        • MediaInfo
        • PageInfo
        • PanelInfo
        • PurgeDocumentsMetadata
        • PurgeDocumentsRequest
        • PurgeDocumentsResponse
        • QueryExpansionInfo
        • QueryExpansionSpec
        • QuerySuggestion
        • RecommendRequest
        • RecommendResponse
        • RecommendationResult
        • RecommendationService
        • Reference
        • RefinementAttribute
        • Reply
        • SafetyAttributes
        • Schema
        • SchemaService
        • SearchInfo
        • SearchRequest
        • SearchResponse
        • SearchResult
        • SearchService
        • SnippetSpec
        • SpellCorrectionSpec
        • Summary
        • SummarySpec
        • TextInput
        • TransactionInfo
        • UpdateConversationRequest
        • UpdateDocumentRequest
        • UpdateSchemaMetadata
        • UpdateSchemaRequest
        • UserEvent
        • UserEventService
        • UserInfo
        • WriteUserEventRequest
      • protos.google.api
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      • protos.google.cloud.discoveryengine.v1
        • IBigQuerySource
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        • IGetConversationRequest
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        • IImageQuery
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        • IImportErrorConfig
        • IImportUserEventsMetadata
        • IImportUserEventsRequest
        • IImportUserEventsResponse
        • IInlineSource
        • IInlineSource
        • IInterval
        • IListConversationsRequest
        • IListConversationsResponse
        • IListDocumentsRequest
        • IListDocumentsResponse
        • IListSchemasRequest
        • IListSchemasResponse
        • IMediaInfo
        • IPageInfo
        • IPanelInfo
        • IPurgeDocumentsMetadata
        • IPurgeDocumentsRequest
        • IPurgeDocumentsResponse
        • IQueryExpansionInfo
        • IQueryExpansionSpec
        • IQuerySuggestion
        • IReply
        • ISafetyAttributes
        • ISchema
        • ISearchInfo
        • ISearchRequest
        • ISearchResponse
        • ISearchResult
        • ISnippetSpec
        • ISpellCorrectionSpec
        • ISummary
        • ISummarySpec
        • ITextInput
        • ITransactionInfo
        • IUpdateConversationRequest
        • IUpdateDocumentRequest
        • IUpdateSchemaMetadata
        • IUpdateSchemaRequest
        • IUserEvent
        • IUserInfo
        • IWriteUserEventRequest
      • protos.google.cloud.discoveryengine.v1alpha
        • IBigQuerySource
        • IBoostSpec
        • ICollectUserEventRequest
        • ICompleteQueryRequest
        • ICompleteQueryResponse
        • ICompletionInfo
        • IConditionBoostSpec
        • IContent
        • IContentSearchSpec
        • IConversation
        • IConversationContext
        • IConversationMessage
        • IConverseConversationRequest
        • IConverseConversationResponse
        • ICreateConversationRequest
        • ICreateDocumentRequest
        • ICreateSchemaMetadata
        • ICreateSchemaRequest
        • ICustomAttribute
        • IDeleteConversationRequest
        • IDeleteDocumentRequest
        • IDeleteSchemaMetadata
        • IDeleteSchemaRequest
        • IDocument
        • IDocumentInfo
        • IDoubleList
        • IEmbeddingSpec
        • IEmbeddingVector
        • IExtractiveContentSpec
        • IFacet
        • IFacetKey
        • IFacetSpec
        • IFacetValue
        • IFailureInfo
        • IFailureReason
        • IFieldConfig
        • IGcsSource
        • IGeoSearchDebugInfo
        • IGetConversationRequest
        • IGetDocumentRequest
        • IGetSchemaRequest
        • IGuidedSearchResult
        • IImageQuery
        • IImportDocumentsMetadata
        • IImportDocumentsRequest
        • IImportDocumentsResponse
        • IImportErrorConfig
        • IImportUserEventsMetadata
        • IImportUserEventsRequest
        • IImportUserEventsResponse
        • IInlineSource
        • IInlineSource
        • IInterval
        • IListConversationsRequest
        • IListConversationsResponse
        • IListDocumentsRequest
        • IListDocumentsResponse
        • IListSchemasRequest
        • IListSchemasResponse
        • IMediaInfo
        • IPageInfo
        • IPanelInfo
        • IPurgeDocumentsMetadata
        • IPurgeDocumentsRequest
        • IPurgeDocumentsResponse
        • IPurgeUserEventsMetadata
        • IPurgeUserEventsRequest
        • IPurgeUserEventsResponse
        • IQueryExpansionInfo
        • IQueryExpansionSpec
        • IQuerySuggestion
        • IRecommendRequest
        • IRecommendResponse
        • IRecommendationResult
        • IRecrawlUrisMetadata
        • IRecrawlUrisRequest
        • IRecrawlUrisResponse
        • IReference
        • IRefinementAttribute
        • IReply
        • ISafetyAttributes
        • ISchema
        • ISearchInfo
        • ISearchRequest
        • ISearchResponse
        • ISearchResult
        • ISnippetSpec
        • ISpellCorrectionSpec
        • ISummary
        • ISummarySpec
        • ITextInput
        • ITransactionInfo
        • IUpdateConversationRequest
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        • IUpdateSchemaMetadata
        • IUpdateSchemaRequest
        • IUserEvent
        • IUserInfo
        • IWriteUserEventRequest
      • protos.google.cloud.discoveryengine.v1beta
        • IBigQuerySource
        • IBoostSpec
        • ICollectUserEventRequest
        • ICompleteQueryRequest
        • ICompleteQueryResponse
        • ICompletionInfo
        • IConditionBoostSpec
        • IContent
        • IContentSearchSpec
        • IConversation
        • IConversationContext
        • IConversationMessage
        • IConverseConversationRequest
        • IConverseConversationResponse
        • ICreateConversationRequest
        • ICreateDocumentRequest
        • ICreateSchemaMetadata
        • ICreateSchemaRequest
        • ICustomAttribute
        • IDeleteConversationRequest
        • IDeleteDocumentRequest
        • IDeleteSchemaMetadata
        • IDeleteSchemaRequest
        • IDocument
        • IDocumentInfo
        • IDoubleList
        • IEmbeddingSpec
        • IEmbeddingVector
        • IExtractiveContentSpec
        • IFacet
        • IFacetKey
        • IFacetSpec
        • IFacetValue
        • IGcsSource
        • IGetConversationRequest
        • IGetDocumentRequest
        • IGetSchemaRequest
        • IGuidedSearchResult
        • IImageQuery
        • IImportDocumentsMetadata
        • IImportDocumentsRequest
        • IImportDocumentsResponse
        • IImportErrorConfig
        • IImportUserEventsMetadata
        • IImportUserEventsRequest
        • IImportUserEventsResponse
        • IInlineSource
        • IInlineSource
        • IInterval
        • IListConversationsRequest
        • IListConversationsResponse
        • IListDocumentsRequest
        • IListDocumentsResponse
        • IListSchemasRequest
        • IListSchemasResponse
        • IMediaInfo
        • IPageInfo
        • IPanelInfo
        • IPurgeDocumentsMetadata
        • IPurgeDocumentsRequest
        • IPurgeDocumentsResponse
        • IQueryExpansionInfo
        • IQueryExpansionSpec
        • IQuerySuggestion
        • IRecommendRequest
        • IRecommendResponse
        • IRecommendationResult
        • IReference
        • IRefinementAttribute
        • IReply
        • ISafetyAttributes
        • ISchema
        • ISearchInfo
        • ISearchRequest
        • ISearchResponse
        • ISearchResult
        • ISnippetSpec
        • ISpellCorrectionSpec
        • ISummary
        • ISummarySpec
        • ITextInput
        • ITransactionInfo
        • IUpdateConversationRequest
        • IUpdateDocumentRequest
        • IUpdateSchemaMetadata
        • IUpdateSchemaRequest
        • IUserEvent
        • IUserInfo
        • IWriteUserEventRequest
      • protos.google.api
        • IClientLibrarySettings
        • ICommonLanguageSettings
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        • ICustomHttpPattern
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        • IHttp
        • IHttpBody
        • IHttpRule
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        • IMethodSettings
        • INodeSettings
        • IPhpSettings
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        • IPythonSettings
        • IResourceDescriptor
        • IResourceReference
        • IRubySettings
      • protos.google.longrunning
        • ICancelOperationRequest
        • IDeleteOperationRequest
        • IGetOperationRequest
        • IListOperationsRequest
        • IListOperationsResponse
        • IOperation
        • IOperationInfo
        • IWaitOperationRequest
      • protos.google.protobuf
        • IAnnotation
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        • IEditionDefault
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      • protos.google.rpc
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Enum protos.google.protobuf.FeatureSet.StringFieldValidation (1.2.0)

  • 2.2.0 (latest)
  • 2.0.1
  • 1.14.0
  • 1.10.0
  • 1.9.0
  • 1.7.0
  • 1.6.0
  • 1.4.1
  • 1.3.1
  • 1.2.0
  • 1.0.0
  • 0.6.0
  • 0.5.0
  • 0.3.1
  • 0.2.0

StringFieldValidation enum.

Fields

Name Description
HINT
MANDATORY
NONE
STRING_FIELD_VALIDATION_UNKNOWN

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Last updated 2025-10-10 UTC.

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