Modify the Open Api object class name & add the copyright head

src/Microsoft.OpenApi.Readers/ReferenceService.cs

@@ -31,10 +31,10 @@ public OpenApiReference ParseReference(string pointer)
             return this.parseReference(pointer);
         }
 
-        public static SecurityScheme LoadSecuritySchemeByReference(ParsingContext context, string schemeName)
+        public static OpenApiSecurityScheme LoadSecuritySchemeByReference(ParsingContext context, string schemeName)
         {
 
-            var schemeObject = (SecurityScheme)context.GetReferencedObject(new OpenApiReference()
+            var schemeObject = (OpenApiSecurityScheme)context.GetReferencedObject(new OpenApiReference()
             {
                 ReferenceType = ReferenceType.SecurityScheme,
                 TypeName = schemeName
@@ -44,14 +44,14 @@ public static SecurityScheme LoadSecuritySchemeByReference(ParsingContext contex
         }
 
 
-        public static Tag LoadTagByReference(ParsingContext context, string tagName)
+        public static OpenApiTag LoadTagByReference(ParsingContext context, string tagName)
         {
 
-            var tagObject = (Tag)context.GetReferencedObject($"#/tags/{tagName}");
+            var tagObject = (OpenApiTag)context.GetReferencedObject($"#/tags/{tagName}");
 
             if (tagObject == null)
             {
-                tagObject = new Tag() { Name = tagName };
+                tagObject = new OpenApiTag() { Name = tagName };
             }
             return tagObject;
         }

src/Microsoft.OpenApi.Workbench/MainModel.cs

@@ -1,11 +1,9 @@
 using System;
-using System.Collections.Generic;
 using System.ComponentModel;
 using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using System.Text;
-using System.Threading.Tasks;
 using Microsoft.OpenApi;
 using Microsoft.OpenApi.Writers;
 using Microsoft.OpenApi.Readers;

src/Microsoft.OpenApi/GenericOpenApiExtension.cs

@@ -1,8 +1,8 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+//---------------------------------------------------------------------
+// <copyright file="GenericOpenApiExtension.cs" company="Microsoft">
+//      Copyright (C) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
+// </copyright>
+//---------------------------------------------------------------------
 
 namespace Microsoft.OpenApi
 {

src/Microsoft.OpenApi/IOpenApiExtension.cs

@@ -1,8 +1,8 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+//---------------------------------------------------------------------
+// <copyright file="IOpenApiExtension.cs" company="Microsoft">
+//      Copyright (C) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
+// </copyright>
+//---------------------------------------------------------------------
 
 namespace Microsoft.OpenApi
 {

src/Microsoft.OpenApi/IReference.cs

@@ -1,6 +1,11 @@
-namespace Microsoft.OpenApi
-{
+//---------------------------------------------------------------------
+// <copyright file="IReference.cs" company="Microsoft">
+//      Copyright (C) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
+// </copyright>
+//---------------------------------------------------------------------
 
+namespace Microsoft.OpenApi
+{
     public interface IReference
     {
         OpenApiReference Pointer { get; set; }

src/Microsoft.OpenApi/IReferenceService.cs

@@ -1,11 +1,14 @@
-
+//---------------------------------------------------------------------
+// <copyright file="IReferenceService.cs" company="Microsoft">
+//      Copyright (C) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
+// </copyright>
+//---------------------------------------------------------------------
+
 namespace Microsoft.OpenApi
 {
     public interface IReferenceService
     {
         IReference LoadReference(OpenApiReference reference);
         OpenApiReference ParseReference(string pointer);
     }
-
-
 }

src/Microsoft.OpenApi/JsonPointer.cs

@@ -1,10 +1,14 @@
-
+//---------------------------------------------------------------------
+// <copyright file="JsonPointer.cs" company="Microsoft">
+//      Copyright (C) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
+// </copyright>
+//---------------------------------------------------------------------
+
+using System;
+using System.Linq;
 
 namespace Microsoft.OpenApi
 {
-    using System;
-    using System.Linq;
-
     public class JsonPointer
     {
         private readonly string[] _Tokens;