Add TemplateModelFactory to resolve AZC0035 analyzer error (Azure#50690)

* Initial plan for issue

* Add TemplateModelFactory to resolve AZC0035 analyzer issue

Co-authored-by: KrzysztofCwalina <[email protected]>

* Address PR feedback: remove test file and update comment

Co-authored-by: KrzysztofCwalina <[email protected]>

---------

Co-authored-by: copilot-swe-agent[bot] <[email protected]>
Co-authored-by: KrzysztofCwalina <[email protected]>

Author: Copilot

sdk/template/Azure.Template/api/Azure.Template.net8.0.cs

@@ -38,6 +38,10 @@ internal SecretBundle() { }
         public System.Collections.Generic.IReadOnlyDictionary<string, string> Tags { get { throw null; } }
         public string Value { get { throw null; } }
     }
+    public static partial class TemplateModelFactory
+    {
+        public static Azure.Template.Models.SecretBundle SecretBundle(string value = null, string id = null, string contentType = null, System.Collections.Generic.IReadOnlyDictionary<string, string> tags = null, string kid = null, bool? managed = default(bool?)) { throw null; }
+    }
 }
 namespace Microsoft.Extensions.Azure
 {

sdk/template/Azure.Template/api/Azure.Template.netstandard2.0.cs

@@ -38,6 +38,10 @@ internal SecretBundle() { }
         public System.Collections.Generic.IReadOnlyDictionary<string, string> Tags { get { throw null; } }
         public string Value { get { throw null; } }
     }
+    public static partial class TemplateModelFactory
+    {
+        public static Azure.Template.Models.SecretBundle SecretBundle(string value = null, string id = null, string contentType = null, System.Collections.Generic.IReadOnlyDictionary<string, string> tags = null, string kid = null, bool? managed = default(bool?)) { throw null; }
+    }
 }
 namespace Microsoft.Extensions.Azure
 {

sdk/template/Azure.Template/src/Models/TemplateModelFactory.cs

@@ -0,0 +1,29 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+#nullable disable
+
+using System.Collections.Generic;
+using Azure.Core;
+
+namespace Azure.Template.Models
+{
+    /// <summary> Model factory that enables mocking of the Template client library. </summary>
+    public static partial class TemplateModelFactory
+    {
+        /// <summary> Initializes a new instance of <see cref="SecretBundle"/>. </summary>
+        /// <param name="value"> The secret value. </param>
+        /// <param name="id"> The secret id. </param>
+        /// <param name="contentType"> The content type of the secret. </param>
+        /// <param name="tags"> Application specific metadata in the form of key-value pairs. </param>
+        /// <param name="kid"> If this is a secret backing a KV certificate, then this field specifies the corresponding key backing the KV certificate. </param>
+        /// <param name="managed"> True if the secret's lifetime is managed by key vault. If this is a secret backing a certificate, then managed will be true. </param>
+        /// <returns> A new <see cref="SecretBundle"/> instance for mocking. </returns>
+        public static SecretBundle SecretBundle(string value = null, string id = null, string contentType = null, IReadOnlyDictionary<string, string> tags = null, string kid = null, bool? managed = null)
+        {
+            tags ??= new Dictionary<string, string>();
+
+            return new SecretBundle(value, id, contentType, tags, kid, managed);
+        }
+    }
+}