openapi schema validation errors #499

...
[INFO] --- openapi-generator:7.16.0:generate (generate-openai-models) @ my-project ---
[ERROR] Undefined array inner type for `null`. Default to String.
[ERROR] Undefined array inner type for `null`. Default to String.
[WARNING] There were issues with the specification, but validation has been explicitly disabled.
Errors:
        -attribute components.schemas.EvalScoreModelGrader.max_items is unexpected
        -attribute components.schemas.TranscriptTextDeltaEvent.items is missing
        -attribute components.schemas.Eval.default is not of type `array`
        -attribute components.schemas.TranscriptionInclude.default is not of type `string`
        -attribute components.schemas.RealtimeTranscriptionSessionCreateRequest.default is not of type `string`
        -attribute components.schemas.VectorStoreFileAttributes.propertyNames is unexpected
        -attribute components.schemas.CreateTranscriptionResponseJson.optional is unexpected
        -paths.'/organization/certificates/{certificate_id}'. Declared path parameter certificate_id needs to be defined as a path parameter in path or operation level
        -attribute components.schemas.TranscriptTextDoneEvent.items is missing
        -attribute components.schemas.RealtimeSessionCreateRequest.default is not of type `string`
        -attribute components.schemas.CompoundFilter.$recursiveRef is unexpected
        -paths.'/organization/projects/{project_id}/certificates/activate'. Declared path parameter project_id needs to be defined as a path parameter in path or operation level
        -paths.'/organization/projects/{project_id}/certificates'. Declared path parameter project_id needs to be defined as a path parameter in path or operation level
        -attribute components.schemas.EvalScoreModelGrader.min_items is unexpected
        -attribute components.schemas.CompoundFilter.$recursiveAnchor is unexpected
        -attribute components.schemas.RealtimeSession.default is not of type `string`
        -paths.'/organization/projects/{project_id}/certificates/deactivate'. Declared path parameter project_id needs to be defined as a path parameter in path or operation level
Warnings:
        -Unused model: RealtimeServerEventResponseDone
        -Unused model: OutputAudio
        -Unused model: MessageDeltaContentTextObject
        -Unused model: RealtimeServerEventResponseOutputItemAdded
        -Unused model: RunStepDeltaStepDetailsToolCallsFunctionObject
        -Unused model: RealtimeClientEventSessionUpdate
        -Unused model: RealtimeServerEventConversationItemInputAudioTranscriptionFailed
        -Unused model: FineTunePreferenceRequestInput
        -Unused model: RunStepDeltaStepDetailsToolCallsFileSearchObject
        -Unused model: ModelIds
        -Unused model: RealtimeConversationItem
        -Unused model: BatchRequestOutput
        -Unused model: RealtimeServerEventResponseOutputItemDone
        -Unused model: RealtimeServerEventResponseTextDelta
        -Unused model: RealtimeServerEventConversationItemInputAudioTranscriptionCompleted
        -Unused model: BatchRequestInput
        -Unused model: LogProbProperties
        -Unused model: RealtimeClientEventInputAudioBufferClear
        -Unused model: RealtimeServerEventInputAudioBufferCleared
        -Unused model: RealtimeResponseCreateParams
        -Unused model: RealtimeServerEvent
        -Unused model: RealtimeServerEventConversationCreated
        -Unused model: RealtimeServerEventError
        -Unused model: RunStepDeltaStepDetailsMessageCreationObject
        -Unused model: RealtimeClientEventConversationItemCreate
        -Unused model: ChatCompletionRole
        -Unused model: ErrorEvent
        -Unused model: MessageDeltaContentImageUrlObject
        -Unused model: RunStepDeltaStepDetailsToolCallsObject
        -Unused model: RealtimeClientEventConversationItemRetrieve
        -Unused model: RealtimeClientEventInputAudioBufferCommit
        -Unused model: RealtimeServerEventOutputAudioBufferCleared
        -Unused model: RealtimeClientEventConversationItemTruncate
        -Unused model: MessageDeltaContentTextAnnotationsFilePathObject
        -Unused model: RealtimeServerEventInputAudioBufferCommitted
        -Unused model: RealtimeClientEventInputAudioBufferAppend
        -Unused model: RealtimeServerEventConversationItemCreated
        -Unused model: RealtimeServerEventTranscriptionSessionUpdated
        -Unused model: RunStepDeltaObject
        -Unused model: AssistantStreamEvent
        -Unused model: RunStepDeltaStepDetailsToolCallsCodeObject
        -Unused model: ThreadStreamEvent
        -Unused model: RealtimeServerEventResponseTextDone
        -Unused model: Content
        -Unused model: DoneEvent
        -Unused model: RealtimeServerEventInputAudioBufferSpeechStarted
        -Unused model: MessageDeltaContentRefusalObject
        -Unused model: RealtimeServerEventResponseContentPartDone
        -Unused model: RealtimeServerEventConversationItemRetrieved
        -Unused model: RunStepDeltaStepDetailsToolCallsCodeOutputLogsObject
        -Unused model: RealtimeClientEventResponseCancel
        -Unused model: RealtimeServerEventResponseCreated
        -Unused model: MessageDeltaObject
        -Unused model: RealtimeServerEventResponseAudioTranscriptDone
        -Unused model: RealtimeServerEventSessionUpdated
        -Unused model: FineTuneCompletionRequestInput
        -Unused model: RealtimeClientEventTranscriptionSessionUpdate
        -Unused model: RunStepStreamEvent
        -Unused model: RealtimeServerEventResponseAudioDelta
        -Unused model: RealtimeServerEventResponseAudioTranscriptDelta
        -Unused model: RealtimeResponse
        -Unused model: RealtimeServerEventInputAudioBufferSpeechStopped
        -Unused model: RealtimeServerEventConversationItemTruncated
        -Unused model: MessageDeltaContentTextAnnotationsFileCitationObject
        -Unused model: RealtimeClientEventResponseCreate
        -Unused model: RealtimeConversationItemWithReference
        -Unused model: ChatCompletionModalities
        -Unused model: FineTuneChatCompletionRequestAssistantMessage
        -Unused model: RealtimeServerEventRateLimitsUpdated
        -Unused model: RealtimeClientEventOutputAudioBufferClear
        -Unused model: FineTuneChatRequestInput
        -Unused model: MessageStreamEvent
        -Unused model: RealtimeServerEventResponseAudioDone
        -Unused model: MessageDeltaContentImageFileObject
        -Unused model: RealtimeServerEventConversationItemDeleted
        -Unused model: RealtimeServerEventSessionCreated
        -Unused model: RealtimeServerEventResponseContentPartAdded
        -Unused model: InputAudio
        -Unused model: RealtimeServerEventOutputAudioBufferStarted
        -Unused model: RealtimeServerEventOutputAudioBufferStopped
        -Unused model: RunStreamEvent
        -Unused model: RealtimeServerEventConversationItemInputAudioTranscriptionDelta
        -Unused model: RealtimeClientEventConversationItemDelete
        -Unused model: RealtimeServerEventResponseFunctionCallArgumentsDone
        -Unused model: RealtimeServerEventResponseFunctionCallArgumentsDelta
        -Unused model: RealtimeSession
        -Unused model: RunStepDeltaStepDetailsToolCallsCodeOutputImageObject
        -Unused model: RealtimeClientEvent

[INFO] Generating with dryRun=false
[INFO] Output directory (...\target\generated-sources\openapi) does not exist, or is inaccessible. No file (.openapi-generator-ignore) will be evaluated.
[INFO] OpenAPI Generator: java (client)
[INFO] Generator 'java' is considered stable.
[INFO] Environment variable JAVA_POST_PROCESS_FILE not defined so the Java code may not be properly formatted. To define it, try 'export JAVA_POST_PROCESS_FILE="/usr/local/bin/clang-format -i"' (Linux/Mac)
[INFO] NOTE: To enable file post-processing, 'enablePostProcessFile' must be set to `true` (--enable-post-process-file for CLI).
[WARNING] ...\src\main\resources\schemas\openai-api-2.3.0.yaml [0:0]: unexpected error in Open-API generation
java.lang.ClassCastException: class java.lang.Boolean cannot be cast to class java.lang.String (java.lang.Boolean and java.lang.String are in module java.base of loader 'bootstrap')
    at org.openapitools.codegen.languages.AbstractJavaCodegen.processOpts (AbstractJavaCodegen.java:449)
    at org.openapitools.codegen.languages.JavaClientCodegen.processOpts (JavaClientCodegen.java:343)
    at org.openapitools.codegen.DefaultGenerator.configureGeneratorProperties (DefaultGenerator.java:251)
    at org.openapitools.codegen.DefaultGenerator.generate (DefaultGenerator.java:1276)
    at org.openapitools.codegen.plugin.CodeGenMojo.execute (CodeGenMojo.java:1005)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:126)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:328)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:316)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:212)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:174)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:75)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:162)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:159)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:906)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.DirectMethodHandleAccessor.invoke (DirectMethodHandleAccessor.java:103)
    at java.lang.reflect.Method.invoke (Method.java:580)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:255)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:201)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:361)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:314)
[ERROR]
java.lang.ClassCastException: class java.lang.Boolean cannot be cast to class java.lang.String (java.lang.Boolean and java.lang.String are in module java.base of loader 'bootstrap')
    at org.openapitools.codegen.languages.AbstractJavaCodegen.processOpts (AbstractJavaCodegen.java:449)
    at org.openapitools.codegen.languages.JavaClientCodegen.processOpts (JavaClientCodegen.java:343)
    at org.openapitools.codegen.DefaultGenerator.configureGeneratorProperties (DefaultGenerator.java:251)
    at org.openapitools.codegen.DefaultGenerator.generate (DefaultGenerator.java:1276)
    at org.openapitools.codegen.plugin.CodeGenMojo.execute (CodeGenMojo.java:1005)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:126)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:328)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:316)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:212)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:174)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:75)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:162)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:159)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:906)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.DirectMethodHandleAccessor.invoke (DirectMethodHandleAccessor.java:103)
va:361)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:314)
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  7.348 s
[INFO] Finished at: 2025-10-23T17:43:45+03:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.openapitools:openapi-generator-maven-plugin:7.16.0:generate (generate-openai-models) on project my-project: Code generation failed. See above for the full exception. -> [Help 1]
[ERROR]
va:361)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:314)
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  7.348 s
[INFO] Finished at: 2025-10-23T17:43:45+03:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.openapitools:openapi-generator-maven-plugin:7.16.0:generate (generate-openai-models) on project my-project: Code generation failed. See above for the full exception. -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[INFO] Total time:  7.348 s
[INFO] Finished at: 2025-10-23T17:43:45+03:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.openapitools:openapi-generator-maven-plugin:7.16.0:generate (generate-openai-models) on project my-project: Code generation failed. See above for the full exception. -> [Help 1]
[ERROR]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

Errors
 
Semantic error at paths./organization/certificates/{certificate_id}
Declared path parameter "certificate_id" needs to be defined as a path parameter at either the path or operation level
Jump to line 7453

Semantic error at paths./organization/certificates/{certificate_id}.get.parameters.0.name
Path parameter "cert_id" must have the corresponding {cert_id} segment in the "/organization/certificates/{certificate_id}" path
Jump to line 7463

Semantic error at paths./organization/projects/{project_id}/certificates
Declared path parameter "project_id" needs to be defined as a path parameter at either the path or operation level
Jump to line 8321

Semantic error at paths./organization/projects/{project_id}/certificates/activate
Declared path parameter "project_id" needs to be defined as a path parameter at either the path or operation level
Jump to line 8395

Semantic error at paths./organization/projects/{project_id}/certificates/deactivate
Declared path parameter "project_id" needs to be defined as a path parameter at either the path or operation level
Jump to line 8462

Structural error at components.schemas.CompoundFilter
should NOT have additional properties
additionalProperty: $recursiveAnchor
Jump to line 18832

Structural error at components.schemas.CompoundFilter.properties.filters.items.oneOf.1
should NOT have additional properties
additionalProperty: $recursiveRef
Jump to line 18852

Structural error at components.schemas.CreateTranscriptionResponseJson.properties.logprobs
should NOT have additional properties
additionalProperty: optional
Jump to line 22675

Structural error at components.schemas.EvalScoreModelGrader.properties.range.items
should NOT have additional properties
additionalProperty: min_items, max_items
Jump to line 24595

Semantic error at components.schemas.TranscriptTextDeltaEvent.properties.logprobs.items.properties.bytes
Schemas with 'type: array', require a sibling 'items: ' field
Jump to line 36558

Semantic error at components.schemas.TranscriptTextDoneEvent.properties.logprobs.items.properties.bytes
Schemas with 'type: array', require a sibling 'items: ' field
Jump to line 36609

Semantic error at components.schemas.TranscriptionInclude.default
Default values must be present in `enum`
Jump to line 36628

Structural error at components.schemas.VectorStoreFileAttributes
should NOT have additional properties
additionalProperty: propertyNames
Jump to line 37471

Structural error at components.schemas.InputImageContent.properties.image_url.anyOf.1.type
should be equal to one of the allowed values
allowedValues: array, boolean, integer, number, object, string
Jump to line 38078

Structural error at components.schemas.InputImageContent.properties.file_id.anyOf.1.type
should be equal to one of the allowed values
allowedValues: array, boolean, integer, number, object, string
Jump to line 38083

Structural error at components.schemas.InputFileContent.properties.file_id.anyOf.1.type
should be equal to one of the allowed values
allowedValues: array, boolean, integer, number, object, string
Jump to line 38112

Structural error at components.schemas.RankingOptions.required
should NOT have fewer than 1 items
limit: 1
Jump to line 38139

Structural error at components.schemas.FileSearchTool.properties.filters.anyOf.1.type
should be equal to one of the allowed values
allowedValues: array, boolean, integer, number, object, string
Jump to line 38169

Structural error at components.schemas.FunctionTool.properties.description.anyOf.1.type
should be equal to one of the allowed values
allowedValues: array, boolean, integer, number, object, string
Jump to line 38195

Structural error at components.schemas.FunctionTool.properties.parameters.anyOf.1.type
should be equal to one of the allowed values
allowedValues: array, boolean, integer, number, object, string
Jump to line 38201

Structural error at components.schemas.FunctionTool.properties.strict.anyOf.1.type
should be equal to one of the allowed values
allowedValues: array, boolean, integer, number, object, string
Jump to line 38206

Structural error at components.schemas.ApproximateLocation.properties.country.anyOf.1.type
should be equal to one of the allowed values
allowedValues: array, boolean, integer, number, object, string
Jump to line 38232

Structural error at components.schemas.ApproximateLocation.properties.region.anyOf.1.type
should be equal to one of the allowed values
allowedValues: array, boolean, integer, number, object, string
Jump to line 38237

Structural error at components.schemas.ApproximateLocation.properties.city.anyOf.1.type
should be equal to one of the allowed values
allowedValues: array, boolean, integer, number, object, string
Jump to line 38242

Structural error at components.schemas.ApproximateLocation.properties.timezone.anyOf.1.type
should be equal to one of the allowed values
allowedValues: array, boolean, integer, number, object, string
Jump to line 38249

Structural error at components.schemas.WebSearchPreviewTool.properties.user_location.anyOf.1.type
should be equal to one of the allowed values
allowedValues: array, boolean, integer, number, object, string
Jump to line 38267

Structural error at components.schemas.ComputerCallSafetyCheckParam.properties.code.anyOf.1.type
should be equal to one of the allowed values
allowedValues: array, boolean, integer, number, object, string
Jump to line 38435

Structural error at components.schemas.ComputerCallSafetyCheckParam.properties.message.anyOf.1.type
should be equal to one of the allowed values
allowedValues: array, boolean, integer, number, object, string
Jump to line 38440

Structural error at components.schemas.ComputerCallOutputItemParam.properties.id.anyOf.1.type
should be equal to one of the allowed values
allowedValues: array, boolean, integer, number, object, string
Jump to line 38451

Structural error at components.schemas.ComputerCallOutputItemParam.properties.acknowledged_safety_checks.anyOf.1.type
should be equal to one of the allowed values
allowedValues: array, boolean, integer, number, object, string
Jump to line 38474

Structural error at components.schemas.ComputerCallOutputItemParam.properties.status.anyOf.1.type
should be equal to one of the allowed values
allowedValues: array, boolean, integer, number, object, string
Jump to line 38485

Structural error at components.schemas.FunctionCallOutputItemParam.properties.id.anyOf.1.type
should be equal to one of the allowed values
allowedValues: array, boolean, integer, number, object, string
Jump to line 38500

Structural error at components.schemas.FunctionCallOutputItemParam.properties.status.anyOf.1.type
should be equal to one of the allowed values
allowedValues: array, boolean, integer, number, object, string
Jump to line 38527

Structural error at components.schemas.ItemReferenceParam.properties.type.anyOf.1.type
should be equal to one of the allowed values
allowedValues: array, boolean, integer, number, object, string
Jump to line 38545

Context: Path: /organization/certificates/{certificate_id}, Method: GET
Example:
cert_id
Error: Path parameter 'cert_id' is declared but not present in the URL.

Context: Schema: TranscriptionInclude
Example:
[]
Error: Default value is not present in the enum list.

Context: Schema: CreateEvalCustomDataSourceConfig, Property: item_schema
Example:
{
  "type": "object",
  "properties": {
    "name": {"type": "string"},
    "age": {"type": "integer"}
  },
  "required": ["name", "age"]
}
Error: '{\n "type": "object",\n "properties": {\n "name": {"type": "string"},\n "age": {"type": "integer"}\n },\n "required": ["name", "age"]\n}\n' is not of type 'object' Failed validating 'type' in schema: {'type': 'object', 'description': 'The json schema for each row in the data source.', 'additionalProperties': True, 'example': '{\n' ' "type": "object",\n' ' "properties": {\n' ' "name": {"type": "string"},\n' ' "age": {"type": "integer"}\n' ' },\n' ' "required": ["name", "age"]\n' '}\n'} On instance: ('{\n' ' "type": "object",\n' ' "properties": {\n' ' "name": {"type": "string"},\n' ' "age": {"type": "integer"}\n' ' },\n' ' "required": ["name", "age"]\n' '}\n')

Context: Schema: CreateEvalLogsDataSourceConfig, Property: metadata
Example:
{
  "use_case": "customer_support_agent"
}
Error: '{\n "use_case": "customer_support_agent"\n}\n' is not of type 'object' Failed validating 'type' in schema: {'type': 'object', 'description': 'Metadata filters for the logs data source.', 'additionalProperties': True, 'example': '{\n "use_case": "customer_support_agent"\n}\n'} On instance: '{\n "use_case": "customer_support_agent"\n}\n'

Context: Schema: EvalCustomDataSourceConfig, Property: schema
Example:
{
  "type": "object",
  "properties": {
    "item": {
      "type": "object",
      "properties": {
        "label": {"type": "string"},
      },
      "required": ["label"]
    }
  },
  "required": ["item"]
}
Error: '{\n "type": "object",\n "properties": {\n "item": {\n "type": "object",\n "properties": {\n "label": {"type": "string"},\n },\n "required": ["label"]\n }\n },\n "required": ["item"]\n}\n' is not of type 'object' Failed validating 'type' in schema: {'type': 'object', 'description': 'The json schema for the run data source items.\n' 'Learn how to build JSON schemas ' '[here](https://json-schema.org/).\n', 'additionalProperties': True, 'example': '{\n' ' "type": "object",\n' ' "properties": {\n' ' "item": {\n' ' "type": "object",\n' ' "properties": {\n' ' "label": {"type": "string"},\n' ' },\n' ' "required": ["label"]\n' ' }\n' ' },\n' ' "required": ["item"]\n' '}\n'} On instance: ('{\n' ' "type": "object",\n' ' "properties": {\n' ' "item": {\n' ' "type": "object",\n' ' "properties": {\n' ' "label": {"type": "string"},\n' ' },\n' ' "required": ["label"]\n' ' }\n' ' },\n' ' "required": ["item"]\n' '}\n')