Elastic.Transport.UnexpectedTransportException when calling elasticClient.MachineLearning.InferTrainedModelAsync

[abajpai1-woolworths]

Elastic.Clients.Elasticsearch version: 8.13.15

Elasticsearch version: 8.8.0

.NET runtime version: 8.0

Operating system version:

Description of the problem including expected versus actual behavior:
This is similar to 8149
Try to use elasticClient.MachineLearning.InferTrainedModelAsync.
There is an exception.

Elastic.Transport.UnexpectedTransportException: The JSON value could not be converted to System.Collections.Generic.IReadOnlyCollection1[System.Object]. Path: $.inference_results[0].predicted_value | LineNumber: 0 | BytePositionInLine: 51. ---> System.Text.Json.JsonException: The JSON value could not be converted to System.Collections.Generic.IReadOnlyCollection1[System.Object]. Path: $.inference_results[0].predicted_value | LineNumber: 0 | BytePositionInLine: 51.
at System.Text.Json.ThrowHelper.ThrowJsonException_DeserializeUnableToConvertValue(Type propertyType)
at System.Text.Json.Serialization.JsonCollectionConverter2.OnTryRead(Utf8JsonReader& reader, Type typeToConvert, JsonSerializerOptions options, ReadStack& state, TCollection& value) at System.Text.Json.Serialization.JsonConverter1.TryRead(Utf8JsonReader& reader, Type typeToConvert, JsonSerializerOptions options, ReadStack& state, T& value, Boolean& isPopulatedValue)
at System.Text.Json.Serialization.Metadata.JsonPropertyInfo1.ReadJsonAndSetMember(Object obj, ReadStack& state, Utf8JsonReader& reader) at System.Text.Json.Serialization.Converters.ObjectDefaultConverter1.OnTryRead(Utf8JsonReader& reader, Type typeToConvert, JsonSerializerOptions options, ReadStack& state, T& value)
at System.Text.Json.Serialization.JsonConverter1.TryRead(Utf8JsonReader& reader, Type typeToConvert, JsonSerializerOptions options, ReadStack& state, T& value, Boolean& isPopulatedValue) at System.Text.Json.Serialization.JsonCollectionConverter2.OnTryRead(Utf8JsonReader& reader, Type typeToConvert, JsonSerializerOptions options, ReadStack& state, TCollection& value)
at System.Text.Json.Serialization.JsonConverter1.TryRead(Utf8JsonReader& reader, Type typeToConvert, JsonSerializerOptions options, ReadStack& state, T& value, Boolean& isPopulatedValue) at System.Text.Json.Serialization.Metadata.JsonPropertyInfo1.ReadJsonAndSetMember(Object obj, ReadStack& state, Utf8JsonReader& reader)
at System.Text.Json.Serialization.Converters.ObjectDefaultConverter1.OnTryRead(Utf8JsonReader& reader, Type typeToConvert, JsonSerializerOptions options, ReadStack& state, T& value) at System.Text.Json.Serialization.JsonConverter1.TryRead(Utf8JsonReader& reader, Type typeToConvert, JsonSerializerOptions options, ReadStack& state, T& value, Boolean& isPopulatedValue)
at System.Text.Json.Serialization.JsonConverter1.ReadCore(Utf8JsonReader& reader, JsonSerializerOptions options, ReadStack& state) at System.Text.Json.Serialization.Metadata.JsonTypeInfo1.ContinueDeserialize(ReadBufferState& bufferState, JsonReaderState& jsonReaderState, ReadStack& readStack)
at System.Text.Json.Serialization.Metadata.JsonTypeInfo1.DeserializeAsync(Stream utf8Json, CancellationToken cancellationToken) at Elastic.Transport.DefaultResponseBuilder1.SetBodyCoreAsync[TResponse](Boolean isAsync, ApiCallDetails details, RequestData requestData, Stream responseStream, String mimeType, CancellationToken cancellationToken)
at Elastic.Transport.DefaultResponseBuilder1.ToResponseAsync[TResponse](RequestData requestData, Exception ex, Nullable1 statusCode, Dictionary2 headers, Stream responseStream, String mimeType, Int64 contentLength, IReadOnlyDictionary2 threadPoolStats, IReadOnlyDictionary2 tcpStats, CancellationToken cancellationToken) at Elastic.Transport.HttpRequestInvoker.RequestCoreAsync[TResponse](Boolean isAsync, RequestData requestData, CancellationToken cancellationToken) at Elastic.Transport.DefaultRequestPipeline1.CallProductEndpointCoreAsync[TResponse](Boolean isAsync, RequestData requestData, CancellationToken cancellationToken)
at Elastic.Transport.DistributedTransport`1.RequestCoreAsync[TResponse](Boolean isAsync, HttpMethod method, String path, PostData data, RequestParameters requestParameters, OpenTelemetryData openTelemetryData, CancellationToken cancellationToken)

Steps to reproduce:
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Expected behavior
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[flobernd]

Fixed in 8.14.2