diff --git a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/CHANGELOG.md b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/CHANGELOG.md
index 1e6d2ed080128..e420a7db014df 100644
--- a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/CHANGELOG.md
+++ b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/CHANGELOG.md
@@ -5,6 +5,7 @@
 ### Features Added
 
 - Enable the new model serialization by using the System.ClientModel, refer this [document](https://aka.ms/azsdk/net/mrw) for more details.
+- Exposed `JsonModelWriteCore` for model serialization procedure.
 
 ### Breaking Changes
 
diff --git a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/api/Azure.ResourceManager.ResourceGraph.netstandard2.0.cs b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/api/Azure.ResourceManager.ResourceGraph.netstandard2.0.cs
index 64ac7ec1ce0ad..a134014cfee5c 100644
--- a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/api/Azure.ResourceManager.ResourceGraph.netstandard2.0.cs
+++ b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/api/Azure.ResourceManager.ResourceGraph.netstandard2.0.cs
@@ -43,6 +43,7 @@ public partial class DateTimeInterval : System.ClientModel.Primitives.IJsonModel
         public DateTimeInterval(System.DateTimeOffset startOn, System.DateTimeOffset endOn) { }
         public System.DateTimeOffset EndOn { get { throw null; } }
         public System.DateTimeOffset StartOn { get { throw null; } }
+        protected virtual void JsonModelWriteCore(System.Text.Json.Utf8JsonWriter writer, System.ClientModel.Primitives.ModelReaderWriterOptions options) { }
         Azure.ResourceManager.ResourceGraph.Models.DateTimeInterval System.ClientModel.Primitives.IJsonModel<Azure.ResourceManager.ResourceGraph.Models.DateTimeInterval>.Create(ref System.Text.Json.Utf8JsonReader reader, System.ClientModel.Primitives.ModelReaderWriterOptions options) { throw null; }
         void System.ClientModel.Primitives.IJsonModel<Azure.ResourceManager.ResourceGraph.Models.DateTimeInterval>.Write(System.Text.Json.Utf8JsonWriter writer, System.ClientModel.Primitives.ModelReaderWriterOptions options) { }
         Azure.ResourceManager.ResourceGraph.Models.DateTimeInterval System.ClientModel.Primitives.IPersistableModel<Azure.ResourceManager.ResourceGraph.Models.DateTimeInterval>.Create(System.BinaryData data, System.ClientModel.Primitives.ModelReaderWriterOptions options) { throw null; }
@@ -53,6 +54,7 @@ public abstract partial class Facet : System.ClientModel.Primitives.IJsonModel<A
     {
         protected Facet(string expression) { }
         public string Expression { get { throw null; } }
+        protected virtual void JsonModelWriteCore(System.Text.Json.Utf8JsonWriter writer, System.ClientModel.Primitives.ModelReaderWriterOptions options) { }
         Azure.ResourceManager.ResourceGraph.Models.Facet System.ClientModel.Primitives.IJsonModel<Azure.ResourceManager.ResourceGraph.Models.Facet>.Create(ref System.Text.Json.Utf8JsonReader reader, System.ClientModel.Primitives.ModelReaderWriterOptions options) { throw null; }
         void System.ClientModel.Primitives.IJsonModel<Azure.ResourceManager.ResourceGraph.Models.Facet>.Write(System.Text.Json.Utf8JsonWriter writer, System.ClientModel.Primitives.ModelReaderWriterOptions options) { }
         Azure.ResourceManager.ResourceGraph.Models.Facet System.ClientModel.Primitives.IPersistableModel<Azure.ResourceManager.ResourceGraph.Models.Facet>.Create(System.BinaryData data, System.ClientModel.Primitives.ModelReaderWriterOptions options) { throw null; }
@@ -63,6 +65,7 @@ public partial class FacetError : Azure.ResourceManager.ResourceGraph.Models.Fac
     {
         internal FacetError() : base (default(string)) { }
         public System.Collections.Generic.IReadOnlyList<Azure.ResourceManager.ResourceGraph.Models.FacetErrorDetails> Errors { get { throw null; } }
+        protected override void JsonModelWriteCore(System.Text.Json.Utf8JsonWriter writer, System.ClientModel.Primitives.ModelReaderWriterOptions options) { }
         Azure.ResourceManager.ResourceGraph.Models.FacetError System.ClientModel.Primitives.IJsonModel<Azure.ResourceManager.ResourceGraph.Models.FacetError>.Create(ref System.Text.Json.Utf8JsonReader reader, System.ClientModel.Primitives.ModelReaderWriterOptions options) { throw null; }
         void System.ClientModel.Primitives.IJsonModel<Azure.ResourceManager.ResourceGraph.Models.FacetError>.Write(System.Text.Json.Utf8JsonWriter writer, System.ClientModel.Primitives.ModelReaderWriterOptions options) { }
         Azure.ResourceManager.ResourceGraph.Models.FacetError System.ClientModel.Primitives.IPersistableModel<Azure.ResourceManager.ResourceGraph.Models.FacetError>.Create(System.BinaryData data, System.ClientModel.Primitives.ModelReaderWriterOptions options) { throw null; }
@@ -75,6 +78,7 @@ internal FacetErrorDetails() { }
         public System.Collections.Generic.IReadOnlyDictionary<string, System.BinaryData> AdditionalProperties { get { throw null; } }
         public string Code { get { throw null; } }
         public string Message { get { throw null; } }
+        protected virtual void JsonModelWriteCore(System.Text.Json.Utf8JsonWriter writer, System.ClientModel.Primitives.ModelReaderWriterOptions options) { }
         Azure.ResourceManager.ResourceGraph.Models.FacetErrorDetails System.ClientModel.Primitives.IJsonModel<Azure.ResourceManager.ResourceGraph.Models.FacetErrorDetails>.Create(ref System.Text.Json.Utf8JsonReader reader, System.ClientModel.Primitives.ModelReaderWriterOptions options) { throw null; }
         void System.ClientModel.Primitives.IJsonModel<Azure.ResourceManager.ResourceGraph.Models.FacetErrorDetails>.Write(System.Text.Json.Utf8JsonWriter writer, System.ClientModel.Primitives.ModelReaderWriterOptions options) { }
         Azure.ResourceManager.ResourceGraph.Models.FacetErrorDetails System.ClientModel.Primitives.IPersistableModel<Azure.ResourceManager.ResourceGraph.Models.FacetErrorDetails>.Create(System.BinaryData data, System.ClientModel.Primitives.ModelReaderWriterOptions options) { throw null; }
@@ -86,6 +90,7 @@ public partial class FacetRequest : System.ClientModel.Primitives.IJsonModel<Azu
         public FacetRequest(string expression) { }
         public string Expression { get { throw null; } }
         public Azure.ResourceManager.ResourceGraph.Models.FacetRequestOptions Options { get { throw null; } set { } }
+        protected virtual void JsonModelWriteCore(System.Text.Json.Utf8JsonWriter writer, System.ClientModel.Primitives.ModelReaderWriterOptions options) { }
         Azure.ResourceManager.ResourceGraph.Models.FacetRequest System.ClientModel.Primitives.IJsonModel<Azure.ResourceManager.ResourceGraph.Models.FacetRequest>.Create(ref System.Text.Json.Utf8JsonReader reader, System.ClientModel.Primitives.ModelReaderWriterOptions options) { throw null; }
         void System.ClientModel.Primitives.IJsonModel<Azure.ResourceManager.ResourceGraph.Models.FacetRequest>.Write(System.Text.Json.Utf8JsonWriter writer, System.ClientModel.Primitives.ModelReaderWriterOptions options) { }
         Azure.ResourceManager.ResourceGraph.Models.FacetRequest System.ClientModel.Primitives.IPersistableModel<Azure.ResourceManager.ResourceGraph.Models.FacetRequest>.Create(System.BinaryData data, System.ClientModel.Primitives.ModelReaderWriterOptions options) { throw null; }
@@ -99,6 +104,7 @@ public FacetRequestOptions() { }
         public string SortBy { get { throw null; } set { } }
         public Azure.ResourceManager.ResourceGraph.Models.FacetSortOrder? SortOrder { get { throw null; } set { } }
         public int? Top { get { throw null; } set { } }
+        protected virtual void JsonModelWriteCore(System.Text.Json.Utf8JsonWriter writer, System.ClientModel.Primitives.ModelReaderWriterOptions options) { }
         Azure.ResourceManager.ResourceGraph.Models.FacetRequestOptions System.ClientModel.Primitives.IJsonModel<Azure.ResourceManager.ResourceGraph.Models.FacetRequestOptions>.Create(ref System.Text.Json.Utf8JsonReader reader, System.ClientModel.Primitives.ModelReaderWriterOptions options) { throw null; }
         void System.ClientModel.Primitives.IJsonModel<Azure.ResourceManager.ResourceGraph.Models.FacetRequestOptions>.Write(System.Text.Json.Utf8JsonWriter writer, System.ClientModel.Primitives.ModelReaderWriterOptions options) { }
         Azure.ResourceManager.ResourceGraph.Models.FacetRequestOptions System.ClientModel.Primitives.IPersistableModel<Azure.ResourceManager.ResourceGraph.Models.FacetRequestOptions>.Create(System.BinaryData data, System.ClientModel.Primitives.ModelReaderWriterOptions options) { throw null; }
@@ -111,6 +117,7 @@ internal FacetResult() : base (default(string)) { }
         public int Count { get { throw null; } }
         public System.BinaryData Data { get { throw null; } }
         public long TotalRecords { get { throw null; } }
+        protected override void JsonModelWriteCore(System.Text.Json.Utf8JsonWriter writer, System.ClientModel.Primitives.ModelReaderWriterOptions options) { }
         Azure.ResourceManager.ResourceGraph.Models.FacetResult System.ClientModel.Primitives.IJsonModel<Azure.ResourceManager.ResourceGraph.Models.FacetResult>.Create(ref System.Text.Json.Utf8JsonReader reader, System.ClientModel.Primitives.ModelReaderWriterOptions options) { throw null; }
         void System.ClientModel.Primitives.IJsonModel<Azure.ResourceManager.ResourceGraph.Models.FacetResult>.Write(System.Text.Json.Utf8JsonWriter writer, System.ClientModel.Primitives.ModelReaderWriterOptions options) { }
         Azure.ResourceManager.ResourceGraph.Models.FacetResult System.ClientModel.Primitives.IPersistableModel<Azure.ResourceManager.ResourceGraph.Models.FacetResult>.Create(System.BinaryData data, System.ClientModel.Primitives.ModelReaderWriterOptions options) { throw null; }
@@ -130,6 +137,7 @@ public ResourceQueryContent(string query) { }
         public Azure.ResourceManager.ResourceGraph.Models.ResourceQueryRequestOptions Options { get { throw null; } set { } }
         public string Query { get { throw null; } }
         public System.Collections.Generic.IList<string> Subscriptions { get { throw null; } }
+        protected virtual void JsonModelWriteCore(System.Text.Json.Utf8JsonWriter writer, System.ClientModel.Primitives.ModelReaderWriterOptions options) { }
         Azure.ResourceManager.ResourceGraph.Models.ResourceQueryContent System.ClientModel.Primitives.IJsonModel<Azure.ResourceManager.ResourceGraph.Models.ResourceQueryContent>.Create(ref System.Text.Json.Utf8JsonReader reader, System.ClientModel.Primitives.ModelReaderWriterOptions options) { throw null; }
         void System.ClientModel.Primitives.IJsonModel<Azure.ResourceManager.ResourceGraph.Models.ResourceQueryContent>.Write(System.Text.Json.Utf8JsonWriter writer, System.ClientModel.Primitives.ModelReaderWriterOptions options) { }
         Azure.ResourceManager.ResourceGraph.Models.ResourceQueryContent System.ClientModel.Primitives.IPersistableModel<Azure.ResourceManager.ResourceGraph.Models.ResourceQueryContent>.Create(System.BinaryData data, System.ClientModel.Primitives.ModelReaderWriterOptions options) { throw null; }
@@ -145,6 +153,7 @@ public ResourceQueryRequestOptions() { }
         public int? Skip { get { throw null; } set { } }
         public string SkipToken { get { throw null; } set { } }
         public int? Top { get { throw null; } set { } }
+        protected virtual void JsonModelWriteCore(System.Text.Json.Utf8JsonWriter writer, System.ClientModel.Primitives.ModelReaderWriterOptions options) { }
         Azure.ResourceManager.ResourceGraph.Models.ResourceQueryRequestOptions System.ClientModel.Primitives.IJsonModel<Azure.ResourceManager.ResourceGraph.Models.ResourceQueryRequestOptions>.Create(ref System.Text.Json.Utf8JsonReader reader, System.ClientModel.Primitives.ModelReaderWriterOptions options) { throw null; }
         void System.ClientModel.Primitives.IJsonModel<Azure.ResourceManager.ResourceGraph.Models.ResourceQueryRequestOptions>.Write(System.Text.Json.Utf8JsonWriter writer, System.ClientModel.Primitives.ModelReaderWriterOptions options) { }
         Azure.ResourceManager.ResourceGraph.Models.ResourceQueryRequestOptions System.ClientModel.Primitives.IPersistableModel<Azure.ResourceManager.ResourceGraph.Models.ResourceQueryRequestOptions>.Create(System.BinaryData data, System.ClientModel.Primitives.ModelReaderWriterOptions options) { throw null; }
@@ -160,6 +169,7 @@ internal ResourceQueryResult() { }
         public Azure.ResourceManager.ResourceGraph.Models.ResultTruncated ResultTruncated { get { throw null; } }
         public string SkipToken { get { throw null; } }
         public long TotalRecords { get { throw null; } }
+        protected virtual void JsonModelWriteCore(System.Text.Json.Utf8JsonWriter writer, System.ClientModel.Primitives.ModelReaderWriterOptions options) { }
         Azure.ResourceManager.ResourceGraph.Models.ResourceQueryResult System.ClientModel.Primitives.IJsonModel<Azure.ResourceManager.ResourceGraph.Models.ResourceQueryResult>.Create(ref System.Text.Json.Utf8JsonReader reader, System.ClientModel.Primitives.ModelReaderWriterOptions options) { throw null; }
         void System.ClientModel.Primitives.IJsonModel<Azure.ResourceManager.ResourceGraph.Models.ResourceQueryResult>.Write(System.Text.Json.Utf8JsonWriter writer, System.ClientModel.Primitives.ModelReaderWriterOptions options) { }
         Azure.ResourceManager.ResourceGraph.Models.ResourceQueryResult System.ClientModel.Primitives.IPersistableModel<Azure.ResourceManager.ResourceGraph.Models.ResourceQueryResult>.Create(System.BinaryData data, System.ClientModel.Primitives.ModelReaderWriterOptions options) { throw null; }
@@ -173,6 +183,7 @@ public ResourcesHistoryContent() { }
         public Azure.ResourceManager.ResourceGraph.Models.ResourcesHistoryRequestOptions Options { get { throw null; } set { } }
         public string Query { get { throw null; } set { } }
         public System.Collections.Generic.IList<string> Subscriptions { get { throw null; } }
+        protected virtual void JsonModelWriteCore(System.Text.Json.Utf8JsonWriter writer, System.ClientModel.Primitives.ModelReaderWriterOptions options) { }
         Azure.ResourceManager.ResourceGraph.Models.ResourcesHistoryContent System.ClientModel.Primitives.IJsonModel<Azure.ResourceManager.ResourceGraph.Models.ResourcesHistoryContent>.Create(ref System.Text.Json.Utf8JsonReader reader, System.ClientModel.Primitives.ModelReaderWriterOptions options) { throw null; }
         void System.ClientModel.Primitives.IJsonModel<Azure.ResourceManager.ResourceGraph.Models.ResourcesHistoryContent>.Write(System.Text.Json.Utf8JsonWriter writer, System.ClientModel.Primitives.ModelReaderWriterOptions options) { }
         Azure.ResourceManager.ResourceGraph.Models.ResourcesHistoryContent System.ClientModel.Primitives.IPersistableModel<Azure.ResourceManager.ResourceGraph.Models.ResourcesHistoryContent>.Create(System.BinaryData data, System.ClientModel.Primitives.ModelReaderWriterOptions options) { throw null; }
@@ -187,6 +198,7 @@ public ResourcesHistoryRequestOptions() { }
         public int? Skip { get { throw null; } set { } }
         public string SkipToken { get { throw null; } set { } }
         public int? Top { get { throw null; } set { } }
+        protected virtual void JsonModelWriteCore(System.Text.Json.Utf8JsonWriter writer, System.ClientModel.Primitives.ModelReaderWriterOptions options) { }
         Azure.ResourceManager.ResourceGraph.Models.ResourcesHistoryRequestOptions System.ClientModel.Primitives.IJsonModel<Azure.ResourceManager.ResourceGraph.Models.ResourcesHistoryRequestOptions>.Create(ref System.Text.Json.Utf8JsonReader reader, System.ClientModel.Primitives.ModelReaderWriterOptions options) { throw null; }
         void System.ClientModel.Primitives.IJsonModel<Azure.ResourceManager.ResourceGraph.Models.ResourcesHistoryRequestOptions>.Write(System.Text.Json.Utf8JsonWriter writer, System.ClientModel.Primitives.ModelReaderWriterOptions options) { }
         Azure.ResourceManager.ResourceGraph.Models.ResourcesHistoryRequestOptions System.ClientModel.Primitives.IPersistableModel<Azure.ResourceManager.ResourceGraph.Models.ResourcesHistoryRequestOptions>.Create(System.BinaryData data, System.ClientModel.Primitives.ModelReaderWriterOptions options) { throw null; }
diff --git a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/assets.json b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/assets.json
index 9d3bd032128a4..332f3550432b6 100644
--- a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/assets.json
+++ b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/assets.json
@@ -2,5 +2,5 @@
   "AssetsRepo": "Azure/azure-sdk-assets",
   "AssetsRepoPrefixPath": "net",
   "TagPrefix": "net/resourcegraph/Azure.ResourceManager.ResourceGraph",
-  "Tag": "net/resourcegraph/Azure.ResourceManager.ResourceGraph_a6ab52c4a7"
+  "Tag": "net/resourcegraph/Azure.ResourceManager.ResourceGraph_95b462d107"
 }
diff --git a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/DateTimeInterval.Serialization.cs b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/DateTimeInterval.Serialization.cs
index cf7dab1ff839c..1939721cdee46 100644
--- a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/DateTimeInterval.Serialization.cs
+++ b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/DateTimeInterval.Serialization.cs
@@ -18,6 +18,15 @@ public partial class DateTimeInterval : IUtf8JsonSerializable, IJsonModel<DateTi
         void IUtf8JsonSerializable.Write(Utf8JsonWriter writer) => ((IJsonModel<DateTimeInterval>)this).Write(writer, ModelSerializationExtensions.WireOptions);
 
         void IJsonModel<DateTimeInterval>.Write(Utf8JsonWriter writer, ModelReaderWriterOptions options)
+        {
+            writer.WriteStartObject();
+            JsonModelWriteCore(writer, options);
+            writer.WriteEndObject();
+        }
+
+        /// <param name="writer"> The JSON writer. </param>
+        /// <param name="options"> The client options for reading and writing models. </param>
+        protected virtual void JsonModelWriteCore(Utf8JsonWriter writer, ModelReaderWriterOptions options)
         {
             var format = options.Format == "W" ? ((IPersistableModel<DateTimeInterval>)this).GetFormatFromOptions(options) : options.Format;
             if (format != "J")
@@ -25,7 +34,6 @@ void IJsonModel<DateTimeInterval>.Write(Utf8JsonWriter writer, ModelReaderWriter
                 throw new FormatException($"The model {nameof(DateTimeInterval)} does not support writing '{format}' format.");
             }
 
-            writer.WriteStartObject();
             writer.WritePropertyName("start"u8);
             writer.WriteStringValue(StartOn, "O");
             writer.WritePropertyName("end"u8);
@@ -45,7 +53,6 @@ void IJsonModel<DateTimeInterval>.Write(Utf8JsonWriter writer, ModelReaderWriter
 #endif
                 }
             }
-            writer.WriteEndObject();
         }
 
         DateTimeInterval IJsonModel<DateTimeInterval>.Create(ref Utf8JsonReader reader, ModelReaderWriterOptions options)
diff --git a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/Facet.Serialization.cs b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/Facet.Serialization.cs
index ad3bf327be628..3257ee2b36962 100644
--- a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/Facet.Serialization.cs
+++ b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/Facet.Serialization.cs
@@ -18,6 +18,15 @@ public partial class Facet : IUtf8JsonSerializable, IJsonModel<Facet>
         void IUtf8JsonSerializable.Write(Utf8JsonWriter writer) => ((IJsonModel<Facet>)this).Write(writer, ModelSerializationExtensions.WireOptions);
 
         void IJsonModel<Facet>.Write(Utf8JsonWriter writer, ModelReaderWriterOptions options)
+        {
+            writer.WriteStartObject();
+            JsonModelWriteCore(writer, options);
+            writer.WriteEndObject();
+        }
+
+        /// <param name="writer"> The JSON writer. </param>
+        /// <param name="options"> The client options for reading and writing models. </param>
+        protected virtual void JsonModelWriteCore(Utf8JsonWriter writer, ModelReaderWriterOptions options)
         {
             var format = options.Format == "W" ? ((IPersistableModel<Facet>)this).GetFormatFromOptions(options) : options.Format;
             if (format != "J")
@@ -25,7 +34,6 @@ void IJsonModel<Facet>.Write(Utf8JsonWriter writer, ModelReaderWriterOptions opt
                 throw new FormatException($"The model {nameof(Facet)} does not support writing '{format}' format.");
             }
 
-            writer.WriteStartObject();
             writer.WritePropertyName("expression"u8);
             writer.WriteStringValue(Expression);
             writer.WritePropertyName("resultType"u8);
@@ -45,7 +53,6 @@ void IJsonModel<Facet>.Write(Utf8JsonWriter writer, ModelReaderWriterOptions opt
 #endif
                 }
             }
-            writer.WriteEndObject();
         }
 
         Facet IJsonModel<Facet>.Create(ref Utf8JsonReader reader, ModelReaderWriterOptions options)
diff --git a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/FacetError.Serialization.cs b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/FacetError.Serialization.cs
index d89caf441b632..7cd9a391b1e56 100644
--- a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/FacetError.Serialization.cs
+++ b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/FacetError.Serialization.cs
@@ -18,6 +18,15 @@ public partial class FacetError : IUtf8JsonSerializable, IJsonModel<FacetError>
         void IUtf8JsonSerializable.Write(Utf8JsonWriter writer) => ((IJsonModel<FacetError>)this).Write(writer, ModelSerializationExtensions.WireOptions);
 
         void IJsonModel<FacetError>.Write(Utf8JsonWriter writer, ModelReaderWriterOptions options)
+        {
+            writer.WriteStartObject();
+            JsonModelWriteCore(writer, options);
+            writer.WriteEndObject();
+        }
+
+        /// <param name="writer"> The JSON writer. </param>
+        /// <param name="options"> The client options for reading and writing models. </param>
+        protected override void JsonModelWriteCore(Utf8JsonWriter writer, ModelReaderWriterOptions options)
         {
             var format = options.Format == "W" ? ((IPersistableModel<FacetError>)this).GetFormatFromOptions(options) : options.Format;
             if (format != "J")
@@ -25,7 +34,7 @@ void IJsonModel<FacetError>.Write(Utf8JsonWriter writer, ModelReaderWriterOption
                 throw new FormatException($"The model {nameof(FacetError)} does not support writing '{format}' format.");
             }
 
-            writer.WriteStartObject();
+            base.JsonModelWriteCore(writer, options);
             writer.WritePropertyName("errors"u8);
             writer.WriteStartArray();
             foreach (var item in Errors)
@@ -33,26 +42,6 @@ void IJsonModel<FacetError>.Write(Utf8JsonWriter writer, ModelReaderWriterOption
                 writer.WriteObjectValue(item, options);
             }
             writer.WriteEndArray();
-            writer.WritePropertyName("expression"u8);
-            writer.WriteStringValue(Expression);
-            writer.WritePropertyName("resultType"u8);
-            writer.WriteStringValue(ResultType);
-            if (options.Format != "W" && _serializedAdditionalRawData != null)
-            {
-                foreach (var item in _serializedAdditionalRawData)
-                {
-                    writer.WritePropertyName(item.Key);
-#if NET6_0_OR_GREATER
-				writer.WriteRawValue(item.Value);
-#else
-                    using (JsonDocument document = JsonDocument.Parse(item.Value))
-                    {
-                        JsonSerializer.Serialize(writer, document.RootElement);
-                    }
-#endif
-                }
-            }
-            writer.WriteEndObject();
         }
 
         FacetError IJsonModel<FacetError>.Create(ref Utf8JsonReader reader, ModelReaderWriterOptions options)
diff --git a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/FacetErrorDetails.Serialization.cs b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/FacetErrorDetails.Serialization.cs
index 54dfb5b3a8e20..e56966b0a40aa 100644
--- a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/FacetErrorDetails.Serialization.cs
+++ b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/FacetErrorDetails.Serialization.cs
@@ -18,6 +18,15 @@ public partial class FacetErrorDetails : IUtf8JsonSerializable, IJsonModel<Facet
         void IUtf8JsonSerializable.Write(Utf8JsonWriter writer) => ((IJsonModel<FacetErrorDetails>)this).Write(writer, ModelSerializationExtensions.WireOptions);
 
         void IJsonModel<FacetErrorDetails>.Write(Utf8JsonWriter writer, ModelReaderWriterOptions options)
+        {
+            writer.WriteStartObject();
+            JsonModelWriteCore(writer, options);
+            writer.WriteEndObject();
+        }
+
+        /// <param name="writer"> The JSON writer. </param>
+        /// <param name="options"> The client options for reading and writing models. </param>
+        protected virtual void JsonModelWriteCore(Utf8JsonWriter writer, ModelReaderWriterOptions options)
         {
             var format = options.Format == "W" ? ((IPersistableModel<FacetErrorDetails>)this).GetFormatFromOptions(options) : options.Format;
             if (format != "J")
@@ -25,7 +34,6 @@ void IJsonModel<FacetErrorDetails>.Write(Utf8JsonWriter writer, ModelReaderWrite
                 throw new FormatException($"The model {nameof(FacetErrorDetails)} does not support writing '{format}' format.");
             }
 
-            writer.WriteStartObject();
             writer.WritePropertyName("code"u8);
             writer.WriteStringValue(Code);
             writer.WritePropertyName("message"u8);
@@ -42,7 +50,6 @@ void IJsonModel<FacetErrorDetails>.Write(Utf8JsonWriter writer, ModelReaderWrite
                 }
 #endif
             }
-            writer.WriteEndObject();
         }
 
         FacetErrorDetails IJsonModel<FacetErrorDetails>.Create(ref Utf8JsonReader reader, ModelReaderWriterOptions options)
diff --git a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/FacetRequest.Serialization.cs b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/FacetRequest.Serialization.cs
index 4f82deb9f9d72..ffdb0441a4b44 100644
--- a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/FacetRequest.Serialization.cs
+++ b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/FacetRequest.Serialization.cs
@@ -18,6 +18,15 @@ public partial class FacetRequest : IUtf8JsonSerializable, IJsonModel<FacetReque
         void IUtf8JsonSerializable.Write(Utf8JsonWriter writer) => ((IJsonModel<FacetRequest>)this).Write(writer, ModelSerializationExtensions.WireOptions);
 
         void IJsonModel<FacetRequest>.Write(Utf8JsonWriter writer, ModelReaderWriterOptions options)
+        {
+            writer.WriteStartObject();
+            JsonModelWriteCore(writer, options);
+            writer.WriteEndObject();
+        }
+
+        /// <param name="writer"> The JSON writer. </param>
+        /// <param name="options"> The client options for reading and writing models. </param>
+        protected virtual void JsonModelWriteCore(Utf8JsonWriter writer, ModelReaderWriterOptions options)
         {
             var format = options.Format == "W" ? ((IPersistableModel<FacetRequest>)this).GetFormatFromOptions(options) : options.Format;
             if (format != "J")
@@ -25,7 +34,6 @@ void IJsonModel<FacetRequest>.Write(Utf8JsonWriter writer, ModelReaderWriterOpti
                 throw new FormatException($"The model {nameof(FacetRequest)} does not support writing '{format}' format.");
             }
 
-            writer.WriteStartObject();
             writer.WritePropertyName("expression"u8);
             writer.WriteStringValue(Expression);
             if (Optional.IsDefined(Options))
@@ -48,7 +56,6 @@ void IJsonModel<FacetRequest>.Write(Utf8JsonWriter writer, ModelReaderWriterOpti
 #endif
                 }
             }
-            writer.WriteEndObject();
         }
 
         FacetRequest IJsonModel<FacetRequest>.Create(ref Utf8JsonReader reader, ModelReaderWriterOptions options)
diff --git a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/FacetRequestOptions.Serialization.cs b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/FacetRequestOptions.Serialization.cs
index f58d64bca733e..396092322c72d 100644
--- a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/FacetRequestOptions.Serialization.cs
+++ b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/FacetRequestOptions.Serialization.cs
@@ -18,6 +18,15 @@ public partial class FacetRequestOptions : IUtf8JsonSerializable, IJsonModel<Fac
         void IUtf8JsonSerializable.Write(Utf8JsonWriter writer) => ((IJsonModel<FacetRequestOptions>)this).Write(writer, ModelSerializationExtensions.WireOptions);
 
         void IJsonModel<FacetRequestOptions>.Write(Utf8JsonWriter writer, ModelReaderWriterOptions options)
+        {
+            writer.WriteStartObject();
+            JsonModelWriteCore(writer, options);
+            writer.WriteEndObject();
+        }
+
+        /// <param name="writer"> The JSON writer. </param>
+        /// <param name="options"> The client options for reading and writing models. </param>
+        protected virtual void JsonModelWriteCore(Utf8JsonWriter writer, ModelReaderWriterOptions options)
         {
             var format = options.Format == "W" ? ((IPersistableModel<FacetRequestOptions>)this).GetFormatFromOptions(options) : options.Format;
             if (format != "J")
@@ -25,7 +34,6 @@ void IJsonModel<FacetRequestOptions>.Write(Utf8JsonWriter writer, ModelReaderWri
                 throw new FormatException($"The model {nameof(FacetRequestOptions)} does not support writing '{format}' format.");
             }
 
-            writer.WriteStartObject();
             if (Optional.IsDefined(SortBy))
             {
                 writer.WritePropertyName("sortBy"u8);
@@ -61,7 +69,6 @@ void IJsonModel<FacetRequestOptions>.Write(Utf8JsonWriter writer, ModelReaderWri
 #endif
                 }
             }
-            writer.WriteEndObject();
         }
 
         FacetRequestOptions IJsonModel<FacetRequestOptions>.Create(ref Utf8JsonReader reader, ModelReaderWriterOptions options)
diff --git a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/FacetResult.Serialization.cs b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/FacetResult.Serialization.cs
index 3c1686f444d70..c17bede7e5993 100644
--- a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/FacetResult.Serialization.cs
+++ b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/FacetResult.Serialization.cs
@@ -18,6 +18,15 @@ public partial class FacetResult : IUtf8JsonSerializable, IJsonModel<FacetResult
         void IUtf8JsonSerializable.Write(Utf8JsonWriter writer) => ((IJsonModel<FacetResult>)this).Write(writer, ModelSerializationExtensions.WireOptions);
 
         void IJsonModel<FacetResult>.Write(Utf8JsonWriter writer, ModelReaderWriterOptions options)
+        {
+            writer.WriteStartObject();
+            JsonModelWriteCore(writer, options);
+            writer.WriteEndObject();
+        }
+
+        /// <param name="writer"> The JSON writer. </param>
+        /// <param name="options"> The client options for reading and writing models. </param>
+        protected override void JsonModelWriteCore(Utf8JsonWriter writer, ModelReaderWriterOptions options)
         {
             var format = options.Format == "W" ? ((IPersistableModel<FacetResult>)this).GetFormatFromOptions(options) : options.Format;
             if (format != "J")
@@ -25,7 +34,7 @@ void IJsonModel<FacetResult>.Write(Utf8JsonWriter writer, ModelReaderWriterOptio
                 throw new FormatException($"The model {nameof(FacetResult)} does not support writing '{format}' format.");
             }
 
-            writer.WriteStartObject();
+            base.JsonModelWriteCore(writer, options);
             writer.WritePropertyName("totalRecords"u8);
             writer.WriteNumberValue(TotalRecords);
             writer.WritePropertyName("count"u8);
@@ -39,26 +48,6 @@ void IJsonModel<FacetResult>.Write(Utf8JsonWriter writer, ModelReaderWriterOptio
                 JsonSerializer.Serialize(writer, document.RootElement);
             }
 #endif
-            writer.WritePropertyName("expression"u8);
-            writer.WriteStringValue(Expression);
-            writer.WritePropertyName("resultType"u8);
-            writer.WriteStringValue(ResultType);
-            if (options.Format != "W" && _serializedAdditionalRawData != null)
-            {
-                foreach (var item in _serializedAdditionalRawData)
-                {
-                    writer.WritePropertyName(item.Key);
-#if NET6_0_OR_GREATER
-				writer.WriteRawValue(item.Value);
-#else
-                    using (JsonDocument document = JsonDocument.Parse(item.Value))
-                    {
-                        JsonSerializer.Serialize(writer, document.RootElement);
-                    }
-#endif
-                }
-            }
-            writer.WriteEndObject();
         }
 
         FacetResult IJsonModel<FacetResult>.Create(ref Utf8JsonReader reader, ModelReaderWriterOptions options)
diff --git a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/ResourceQueryContent.Serialization.cs b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/ResourceQueryContent.Serialization.cs
index d0da762659d3a..3f1830134ba99 100644
--- a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/ResourceQueryContent.Serialization.cs
+++ b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/ResourceQueryContent.Serialization.cs
@@ -18,6 +18,15 @@ public partial class ResourceQueryContent : IUtf8JsonSerializable, IJsonModel<Re
         void IUtf8JsonSerializable.Write(Utf8JsonWriter writer) => ((IJsonModel<ResourceQueryContent>)this).Write(writer, ModelSerializationExtensions.WireOptions);
 
         void IJsonModel<ResourceQueryContent>.Write(Utf8JsonWriter writer, ModelReaderWriterOptions options)
+        {
+            writer.WriteStartObject();
+            JsonModelWriteCore(writer, options);
+            writer.WriteEndObject();
+        }
+
+        /// <param name="writer"> The JSON writer. </param>
+        /// <param name="options"> The client options for reading and writing models. </param>
+        protected virtual void JsonModelWriteCore(Utf8JsonWriter writer, ModelReaderWriterOptions options)
         {
             var format = options.Format == "W" ? ((IPersistableModel<ResourceQueryContent>)this).GetFormatFromOptions(options) : options.Format;
             if (format != "J")
@@ -25,7 +34,6 @@ void IJsonModel<ResourceQueryContent>.Write(Utf8JsonWriter writer, ModelReaderWr
                 throw new FormatException($"The model {nameof(ResourceQueryContent)} does not support writing '{format}' format.");
             }
 
-            writer.WriteStartObject();
             if (Optional.IsCollectionDefined(Subscriptions))
             {
                 writer.WritePropertyName("subscriptions"u8);
@@ -78,7 +86,6 @@ void IJsonModel<ResourceQueryContent>.Write(Utf8JsonWriter writer, ModelReaderWr
 #endif
                 }
             }
-            writer.WriteEndObject();
         }
 
         ResourceQueryContent IJsonModel<ResourceQueryContent>.Create(ref Utf8JsonReader reader, ModelReaderWriterOptions options)
diff --git a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/ResourceQueryRequestOptions.Serialization.cs b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/ResourceQueryRequestOptions.Serialization.cs
index ca2d509719a44..a7c722ccbf1a4 100644
--- a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/ResourceQueryRequestOptions.Serialization.cs
+++ b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/ResourceQueryRequestOptions.Serialization.cs
@@ -18,6 +18,15 @@ public partial class ResourceQueryRequestOptions : IUtf8JsonSerializable, IJsonM
         void IUtf8JsonSerializable.Write(Utf8JsonWriter writer) => ((IJsonModel<ResourceQueryRequestOptions>)this).Write(writer, ModelSerializationExtensions.WireOptions);
 
         void IJsonModel<ResourceQueryRequestOptions>.Write(Utf8JsonWriter writer, ModelReaderWriterOptions options)
+        {
+            writer.WriteStartObject();
+            JsonModelWriteCore(writer, options);
+            writer.WriteEndObject();
+        }
+
+        /// <param name="writer"> The JSON writer. </param>
+        /// <param name="options"> The client options for reading and writing models. </param>
+        protected virtual void JsonModelWriteCore(Utf8JsonWriter writer, ModelReaderWriterOptions options)
         {
             var format = options.Format == "W" ? ((IPersistableModel<ResourceQueryRequestOptions>)this).GetFormatFromOptions(options) : options.Format;
             if (format != "J")
@@ -25,7 +34,6 @@ void IJsonModel<ResourceQueryRequestOptions>.Write(Utf8JsonWriter writer, ModelR
                 throw new FormatException($"The model {nameof(ResourceQueryRequestOptions)} does not support writing '{format}' format.");
             }
 
-            writer.WriteStartObject();
             if (Optional.IsDefined(SkipToken))
             {
                 writer.WritePropertyName("$skipToken"u8);
@@ -71,7 +79,6 @@ void IJsonModel<ResourceQueryRequestOptions>.Write(Utf8JsonWriter writer, ModelR
 #endif
                 }
             }
-            writer.WriteEndObject();
         }
 
         ResourceQueryRequestOptions IJsonModel<ResourceQueryRequestOptions>.Create(ref Utf8JsonReader reader, ModelReaderWriterOptions options)
diff --git a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/ResourceQueryResult.Serialization.cs b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/ResourceQueryResult.Serialization.cs
index 484f6ad2b1a00..0ce7ed245d9ae 100644
--- a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/ResourceQueryResult.Serialization.cs
+++ b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/ResourceQueryResult.Serialization.cs
@@ -18,6 +18,15 @@ public partial class ResourceQueryResult : IUtf8JsonSerializable, IJsonModel<Res
         void IUtf8JsonSerializable.Write(Utf8JsonWriter writer) => ((IJsonModel<ResourceQueryResult>)this).Write(writer, ModelSerializationExtensions.WireOptions);
 
         void IJsonModel<ResourceQueryResult>.Write(Utf8JsonWriter writer, ModelReaderWriterOptions options)
+        {
+            writer.WriteStartObject();
+            JsonModelWriteCore(writer, options);
+            writer.WriteEndObject();
+        }
+
+        /// <param name="writer"> The JSON writer. </param>
+        /// <param name="options"> The client options for reading and writing models. </param>
+        protected virtual void JsonModelWriteCore(Utf8JsonWriter writer, ModelReaderWriterOptions options)
         {
             var format = options.Format == "W" ? ((IPersistableModel<ResourceQueryResult>)this).GetFormatFromOptions(options) : options.Format;
             if (format != "J")
@@ -25,7 +34,6 @@ void IJsonModel<ResourceQueryResult>.Write(Utf8JsonWriter writer, ModelReaderWri
                 throw new FormatException($"The model {nameof(ResourceQueryResult)} does not support writing '{format}' format.");
             }
 
-            writer.WriteStartObject();
             writer.WritePropertyName("totalRecords"u8);
             writer.WriteNumberValue(TotalRecords);
             writer.WritePropertyName("count"u8);
@@ -71,7 +79,6 @@ void IJsonModel<ResourceQueryResult>.Write(Utf8JsonWriter writer, ModelReaderWri
 #endif
                 }
             }
-            writer.WriteEndObject();
         }
 
         ResourceQueryResult IJsonModel<ResourceQueryResult>.Create(ref Utf8JsonReader reader, ModelReaderWriterOptions options)
diff --git a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/ResourcesHistoryContent.Serialization.cs b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/ResourcesHistoryContent.Serialization.cs
index dfc080c5329ff..66b319f468243 100644
--- a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/ResourcesHistoryContent.Serialization.cs
+++ b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/ResourcesHistoryContent.Serialization.cs
@@ -18,6 +18,15 @@ public partial class ResourcesHistoryContent : IUtf8JsonSerializable, IJsonModel
         void IUtf8JsonSerializable.Write(Utf8JsonWriter writer) => ((IJsonModel<ResourcesHistoryContent>)this).Write(writer, ModelSerializationExtensions.WireOptions);
 
         void IJsonModel<ResourcesHistoryContent>.Write(Utf8JsonWriter writer, ModelReaderWriterOptions options)
+        {
+            writer.WriteStartObject();
+            JsonModelWriteCore(writer, options);
+            writer.WriteEndObject();
+        }
+
+        /// <param name="writer"> The JSON writer. </param>
+        /// <param name="options"> The client options for reading and writing models. </param>
+        protected virtual void JsonModelWriteCore(Utf8JsonWriter writer, ModelReaderWriterOptions options)
         {
             var format = options.Format == "W" ? ((IPersistableModel<ResourcesHistoryContent>)this).GetFormatFromOptions(options) : options.Format;
             if (format != "J")
@@ -25,7 +34,6 @@ void IJsonModel<ResourcesHistoryContent>.Write(Utf8JsonWriter writer, ModelReade
                 throw new FormatException($"The model {nameof(ResourcesHistoryContent)} does not support writing '{format}' format.");
             }
 
-            writer.WriteStartObject();
             if (Optional.IsCollectionDefined(Subscriptions))
             {
                 writer.WritePropertyName("subscriptions"u8);
@@ -71,7 +79,6 @@ void IJsonModel<ResourcesHistoryContent>.Write(Utf8JsonWriter writer, ModelReade
 #endif
                 }
             }
-            writer.WriteEndObject();
         }
 
         ResourcesHistoryContent IJsonModel<ResourcesHistoryContent>.Create(ref Utf8JsonReader reader, ModelReaderWriterOptions options)
diff --git a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/ResourcesHistoryRequestOptions.Serialization.cs b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/ResourcesHistoryRequestOptions.Serialization.cs
index 21d8ea2a93ca6..9bc4ea66a7c62 100644
--- a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/ResourcesHistoryRequestOptions.Serialization.cs
+++ b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/ResourcesHistoryRequestOptions.Serialization.cs
@@ -18,6 +18,15 @@ public partial class ResourcesHistoryRequestOptions : IUtf8JsonSerializable, IJs
         void IUtf8JsonSerializable.Write(Utf8JsonWriter writer) => ((IJsonModel<ResourcesHistoryRequestOptions>)this).Write(writer, ModelSerializationExtensions.WireOptions);
 
         void IJsonModel<ResourcesHistoryRequestOptions>.Write(Utf8JsonWriter writer, ModelReaderWriterOptions options)
+        {
+            writer.WriteStartObject();
+            JsonModelWriteCore(writer, options);
+            writer.WriteEndObject();
+        }
+
+        /// <param name="writer"> The JSON writer. </param>
+        /// <param name="options"> The client options for reading and writing models. </param>
+        protected virtual void JsonModelWriteCore(Utf8JsonWriter writer, ModelReaderWriterOptions options)
         {
             var format = options.Format == "W" ? ((IPersistableModel<ResourcesHistoryRequestOptions>)this).GetFormatFromOptions(options) : options.Format;
             if (format != "J")
@@ -25,7 +34,6 @@ void IJsonModel<ResourcesHistoryRequestOptions>.Write(Utf8JsonWriter writer, Mod
                 throw new FormatException($"The model {nameof(ResourcesHistoryRequestOptions)} does not support writing '{format}' format.");
             }
 
-            writer.WriteStartObject();
             if (Optional.IsDefined(Interval))
             {
                 writer.WritePropertyName("interval"u8);
@@ -66,7 +74,6 @@ void IJsonModel<ResourcesHistoryRequestOptions>.Write(Utf8JsonWriter writer, Mod
 #endif
                 }
             }
-            writer.WriteEndObject();
         }
 
         ResourcesHistoryRequestOptions IJsonModel<ResourcesHistoryRequestOptions>.Create(ref Utf8JsonReader reader, ModelReaderWriterOptions options)
diff --git a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/UnknownFacet.Serialization.cs b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/UnknownFacet.Serialization.cs
index f49e42f763013..a48f38aa37ec7 100644
--- a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/UnknownFacet.Serialization.cs
+++ b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/Generated/Models/UnknownFacet.Serialization.cs
@@ -18,6 +18,15 @@ internal partial class UnknownFacet : IUtf8JsonSerializable, IJsonModel<Facet>
         void IUtf8JsonSerializable.Write(Utf8JsonWriter writer) => ((IJsonModel<Facet>)this).Write(writer, ModelSerializationExtensions.WireOptions);
 
         void IJsonModel<Facet>.Write(Utf8JsonWriter writer, ModelReaderWriterOptions options)
+        {
+            writer.WriteStartObject();
+            JsonModelWriteCore(writer, options);
+            writer.WriteEndObject();
+        }
+
+        /// <param name="writer"> The JSON writer. </param>
+        /// <param name="options"> The client options for reading and writing models. </param>
+        protected override void JsonModelWriteCore(Utf8JsonWriter writer, ModelReaderWriterOptions options)
         {
             var format = options.Format == "W" ? ((IPersistableModel<Facet>)this).GetFormatFromOptions(options) : options.Format;
             if (format != "J")
@@ -25,27 +34,7 @@ void IJsonModel<Facet>.Write(Utf8JsonWriter writer, ModelReaderWriterOptions opt
                 throw new FormatException($"The model {nameof(Facet)} does not support writing '{format}' format.");
             }
 
-            writer.WriteStartObject();
-            writer.WritePropertyName("expression"u8);
-            writer.WriteStringValue(Expression);
-            writer.WritePropertyName("resultType"u8);
-            writer.WriteStringValue(ResultType);
-            if (options.Format != "W" && _serializedAdditionalRawData != null)
-            {
-                foreach (var item in _serializedAdditionalRawData)
-                {
-                    writer.WritePropertyName(item.Key);
-#if NET6_0_OR_GREATER
-				writer.WriteRawValue(item.Value);
-#else
-                    using (JsonDocument document = JsonDocument.Parse(item.Value))
-                    {
-                        JsonSerializer.Serialize(writer, document.RootElement);
-                    }
-#endif
-                }
-            }
-            writer.WriteEndObject();
+            base.JsonModelWriteCore(writer, options);
         }
 
         Facet IJsonModel<Facet>.Create(ref Utf8JsonReader reader, ModelReaderWriterOptions options)
diff --git a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/autorest.md b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/autorest.md
index 5208d131a9579..1f2dc52afef83 100644
--- a/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/autorest.md
+++ b/sdk/resourcegraph/Azure.ResourceManager.ResourceGraph/src/autorest.md
@@ -19,6 +19,7 @@ skip-csproj: true
 modelerfour:
   flatten-payloads: false
 use-model-reader-writer: true
+use-write-core: true
 
 rename-mapping:
   ErrorDetails: FacetErrorDetails