Regenerate client using the latest spec

src/Elastic.Clients.Elasticsearch.Serverless/_Generated/Types/Core/MSearch/MultisearchBody.g.cs

@@ -95,7 +95,7 @@ public override MultisearchBody Read(ref Utf8JsonReader reader, Type typeToConve
 
 				if (property == "knn")
 				{
-					variant.Knn = JsonSerializer.Deserialize<ICollection<Elastic.Clients.Elasticsearch.Serverless.KnnSearch>?>(ref reader, options);
+					variant.Knn = SingleOrManySerializationHelper.Deserialize<Elastic.Clients.Elasticsearch.Serverless.KnnSearch>(ref reader, options);
 					continue;
 				}
 
@@ -131,7 +131,7 @@ public override MultisearchBody Read(ref Utf8JsonReader reader, Type typeToConve
 
 				if (property == "rescore")
 				{
-					variant.Rescore = JsonSerializer.Deserialize<ICollection<Elastic.Clients.Elasticsearch.Serverless.Core.Search.Rescore>?>(ref reader, options);
+					variant.Rescore = SingleOrManySerializationHelper.Deserialize<Elastic.Clients.Elasticsearch.Serverless.Core.Search.Rescore>(ref reader, options);
 					continue;
 				}
 
@@ -167,7 +167,7 @@ public override MultisearchBody Read(ref Utf8JsonReader reader, Type typeToConve
 
 				if (property == "sort")
 				{
-					variant.Sort = JsonSerializer.Deserialize<ICollection<Elastic.Clients.Elasticsearch.Serverless.SortOptions>?>(ref reader, options);
+					variant.Sort = SingleOrManySerializationHelper.Deserialize<Elastic.Clients.Elasticsearch.Serverless.SortOptions>(ref reader, options);
 					continue;
 				}
 

src/Elastic.Clients.Elasticsearch.Serverless/_Generated/Types/IndexManagement/IndexSettings.g.cs

@@ -300,7 +300,7 @@ public override IndexSettings Read(ref Utf8JsonReader reader, Type typeToConvert
 
 				if (property == "routing_path")
 				{
-					variant.RoutingPath = JsonSerializer.Deserialize<ICollection<string>?>(ref reader, options);
+					variant.RoutingPath = SingleOrManySerializationHelper.Deserialize<string>(ref reader, options);
 					continue;
 				}
 

src/Elastic.Clients.Elasticsearch.Serverless/_Generated/Types/MachineLearning/InferenceResponseResult.g.cs

@@ -51,6 +51,7 @@ public sealed partial class InferenceResponseResult
 	/// <para>If the model is trained for a text classification or zero shot classification task, the response is the<br/>predicted class.<br/>For named entity recognition (NER) tasks, it contains the annotated text output.<br/>For fill mask tasks, it contains the top prediction for replacing the mask token.<br/>For text embedding tasks, it contains the raw numerical text embedding values.<br/>For regression models, its a numerical value<br/>For classification models, it may be an integer, double, boolean or string depending on prediction type</para>
 	/// </summary>
 	[JsonInclude, JsonPropertyName("predicted_value")]
+	[SingleOrManyCollectionConverter(typeof(object))]
 	public IReadOnlyCollection<object>? PredictedValue { get; init; }
 
 	/// <summary>

src/Elastic.Clients.Elasticsearch/_Generated/Api/Inference/DeleteInferenceRequest.g.cs

@@ -31,6 +31,15 @@ namespace Elastic.Clients.Elasticsearch.Inference;
 
 public sealed partial class DeleteInferenceRequestParameters : RequestParameters
 {
+	/// <summary>
+	/// <para>When true, the endpoint is not deleted, and a list of ingest processors which reference this endpoint is returned</para>
+	/// </summary>
+	public bool? DryRun { get => Q<bool?>("dry_run"); set => Q("dry_run", value); }
+
+	/// <summary>
+	/// <para>When true, the inference endpoint is forcefully deleted even if it is still being used by ingest processors or semantic text fields</para>
+	/// </summary>
+	public bool? Force { get => Q<bool?>("force"); set => Q("force", value); }
 }
 
 /// <summary>
@@ -53,6 +62,18 @@ public DeleteInferenceRequest(Elastic.Clients.Elasticsearch.Inference.TaskType?
 	internal override bool SupportsBody => false;
 
 	internal override string OperationName => "inference.delete";
+
+	/// <summary>
+	/// <para>When true, the endpoint is not deleted, and a list of ingest processors which reference this endpoint is returned</para>
+	/// </summary>
+	[JsonIgnore]
+	public bool? DryRun { get => Q<bool?>("dry_run"); set => Q("dry_run", value); }
+
+	/// <summary>
+	/// <para>When true, the inference endpoint is forcefully deleted even if it is still being used by ingest processors or semantic text fields</para>
+	/// </summary>
+	[JsonIgnore]
+	public bool? Force { get => Q<bool?>("force"); set => Q("force", value); }
 }
 
 /// <summary>
@@ -78,6 +99,9 @@ public DeleteInferenceRequestDescriptor(Elastic.Clients.Elasticsearch.Id inferen
 
 	internal override string OperationName => "inference.delete";
 
+	public DeleteInferenceRequestDescriptor DryRun(bool? dryRun = true) => Qs("dry_run", dryRun);
+	public DeleteInferenceRequestDescriptor Force(bool? force = true) => Qs("force", force);
+
 	public DeleteInferenceRequestDescriptor InferenceId(Elastic.Clients.Elasticsearch.Id inferenceId)
 	{
 		RouteValues.Required("inference_id", inferenceId);

src/Elastic.Clients.Elasticsearch/_Generated/Api/Inference/DeleteInferenceResponse.g.cs

@@ -33,4 +33,6 @@ public sealed partial class DeleteInferenceResponse : ElasticsearchResponse
 	/// </summary>
 	[JsonInclude, JsonPropertyName("acknowledged")]
 	public bool Acknowledged { get; init; }
+	[JsonInclude, JsonPropertyName("pipelines")]
+	public IReadOnlyCollection<string> Pipelines { get; init; }
 }

src/Elastic.Clients.Elasticsearch/_Generated/Types/Core/MSearch/MultisearchBody.g.cs

@@ -95,7 +95,7 @@ public override MultisearchBody Read(ref Utf8JsonReader reader, Type typeToConve
 
 				if (property == "knn")
 				{
-					variant.Knn = JsonSerializer.Deserialize<ICollection<Elastic.Clients.Elasticsearch.KnnSearch>?>(ref reader, options);
+					variant.Knn = SingleOrManySerializationHelper.Deserialize<Elastic.Clients.Elasticsearch.KnnSearch>(ref reader, options);
 					continue;
 				}
 
@@ -131,7 +131,7 @@ public override MultisearchBody Read(ref Utf8JsonReader reader, Type typeToConve
 
 				if (property == "rescore")
 				{
-					variant.Rescore = JsonSerializer.Deserialize<ICollection<Elastic.Clients.Elasticsearch.Core.Search.Rescore>?>(ref reader, options);
+					variant.Rescore = SingleOrManySerializationHelper.Deserialize<Elastic.Clients.Elasticsearch.Core.Search.Rescore>(ref reader, options);
 					continue;
 				}
 
@@ -167,7 +167,7 @@ public override MultisearchBody Read(ref Utf8JsonReader reader, Type typeToConve
 
 				if (property == "sort")
 				{
-					variant.Sort = JsonSerializer.Deserialize<ICollection<Elastic.Clients.Elasticsearch.SortOptions>?>(ref reader, options);
+					variant.Sort = SingleOrManySerializationHelper.Deserialize<Elastic.Clients.Elasticsearch.SortOptions>(ref reader, options);
 					continue;
 				}
 

src/Elastic.Clients.Elasticsearch/_Generated/Types/IndexManagement/IndexSettings.g.cs

@@ -300,7 +300,7 @@ public override IndexSettings Read(ref Utf8JsonReader reader, Type typeToConvert
 
 				if (property == "routing_path")
 				{
-					variant.RoutingPath = JsonSerializer.Deserialize<ICollection<string>?>(ref reader, options);
+					variant.RoutingPath = SingleOrManySerializationHelper.Deserialize<string>(ref reader, options);
 					continue;
 				}
 

src/Elastic.Clients.Elasticsearch/_Generated/Types/MachineLearning/InferenceResponseResult.g.cs

@@ -51,6 +51,7 @@ public sealed partial class InferenceResponseResult
 	/// <para>If the model is trained for a text classification or zero shot classification task, the response is the<br/>predicted class.<br/>For named entity recognition (NER) tasks, it contains the annotated text output.<br/>For fill mask tasks, it contains the top prediction for replacing the mask token.<br/>For text embedding tasks, it contains the raw numerical text embedding values.<br/>For regression models, its a numerical value<br/>For classification models, it may be an integer, double, boolean or string depending on prediction type</para>
 	/// </summary>
 	[JsonInclude, JsonPropertyName("predicted_value")]
+	[SingleOrManyCollectionConverter(typeof(object))]
 	public IReadOnlyCollection<object>? PredictedValue { get; init; }
 
 	/// <summary>