chore: replace interface with concrete type

Author: MaggieKimani1

src/Microsoft.OpenApi.Hidi/Extensions/OpenApiExtensibleExtensions.cs

@@ -13,7 +13,7 @@ internal static class OpenApiExtensibleExtensions
         /// <param name="extensions">A dictionary of <see cref="IOpenApiExtension"/>.</param>
         /// <param name="extensionKey">The key corresponding to the <see cref="IOpenApiExtension"/>.</param>
         /// <returns>A <see cref="string"/> value matching the provided extensionKey. Return null when extensionKey is not found. </returns>
-        internal static string GetExtension(this IDictionary<string, IOpenApiExtension> extensions, string extensionKey)
+        internal static string GetExtension(this Dictionary<string, IOpenApiExtension> extensions, string extensionKey)
         {
             if (extensions.TryGetValue(extensionKey, out var value) && value is OpenApiAny { Node: JsonValue castValue } && castValue.TryGetValue<string>(out var stringValue))
             {

src/Microsoft.OpenApi.Hidi/Formatters/PowerShellFormatter.cs

@@ -161,7 +161,7 @@ private static string RemoveKeyTypeSegment(string operationId, IList<IOpenApiPar
 
         private static void ResolveFunctionParameters(IList<IOpenApiParameter> parameters)
         {
-            foreach (var parameter in parameters.OfType<OpenApiParameter>().Where(static p => p.Content?.Any() ?? false))
+            foreach (var parameter in parameters.OfType<OpenApiParameter>().Where(static p => p.Content?.Count > 0))
             {
                 // Replace content with a schema object of type array
                 // for structured or collection-valued function parameters

src/Microsoft.OpenApi.Hidi/StatsVisitor.cs

@@ -27,7 +27,7 @@ public override void Visit(IOpenApiSchema schema)
 
         public int HeaderCount { get; set; }
 
-        public override void Visit(IDictionary<string, IOpenApiHeader> headers)
+        public override void Visit(Dictionary<string, IOpenApiHeader> headers)
         {
             HeaderCount++;
         }

src/Microsoft.OpenApi.Workbench/StatsVisitor.cs

@@ -27,7 +27,7 @@ public override void Visit(IOpenApiSchema schema)
 
         public int HeaderCount { get; set; }
 
-        public override void Visit(IDictionary<string, IOpenApiHeader> headers)
+        public override void Visit(Dictionary<string, IOpenApiHeader> headers)
         {
             HeaderCount++;
         }

src/Microsoft.OpenApi/Extensions/OpenApiServerExtensions.cs

@@ -21,7 +21,7 @@ public static class OpenApiServerExtensions
     ///   1. A substitution has no valid value in both the supplied dictionary and the default
     ///   2. A substitution's value is not available in the enum provided
     /// </exception>
-    public static string? ReplaceServerUrlVariables(this OpenApiServer server, IDictionary<string, string>? values = null)
+    public static string? ReplaceServerUrlVariables(this OpenApiServer server, Dictionary<string, string>? values = null)
     {
         var parsedUrl = server.Url;
         if (server.Variables is not null && parsedUrl is not null)

src/Microsoft.OpenApi/Interfaces/IMetadataContainer.cs

@@ -14,6 +14,6 @@ public interface IMetadataContainer
         /// <summary>
         /// A collection of properties associated with the current OpenAPI element.
         /// </summary>
-        IDictionary<string, object>? Metadata { get; set; }
+        Dictionary<string, object>? Metadata { get; set; }
     }
 }

src/Microsoft.OpenApi/Interfaces/IOpenApiExtensible.cs

@@ -13,6 +13,6 @@ public interface IOpenApiExtensible : IOpenApiElement
         /// <summary>
         /// Specification extensions.
         /// </summary>
-        IDictionary<string, IOpenApiExtension>? Extensions { get; set; }
+        Dictionary<string, IOpenApiExtension>? Extensions { get; set; }
     }
 }

src/Microsoft.OpenApi/Interfaces/IOpenApiReadOnlyExtensible.cs

@@ -10,6 +10,6 @@ public interface IOpenApiReadOnlyExtensible
     /// <summary>
     /// Specification extensions.
     /// </summary>
-    IDictionary<string, IOpenApiExtension>? Extensions { get; }
+    Dictionary<string, IOpenApiExtension>? Extensions { get; }
 
 }

src/Microsoft.OpenApi/Models/Interfaces/IOpenApiHeader.cs

@@ -55,11 +55,11 @@ public interface IOpenApiHeader : IOpenApiDescribedElement, IOpenApiReadOnlyExte
     /// <summary>
     /// Examples of the media type.
     /// </summary>
-    public IDictionary<string, IOpenApiExample>? Examples { get; }
+    public Dictionary<string, IOpenApiExample>? Examples { get; }
 
     /// <summary>
     /// A map containing the representations for the header.
     /// </summary>
-    public IDictionary<string, OpenApiMediaType>? Content { get; }
+    public Dictionary<string, OpenApiMediaType>? Content { get; }
 
 }

src/Microsoft.OpenApi/Models/Interfaces/IOpenApiLink.cs

@@ -24,7 +24,7 @@ public interface IOpenApiLink : IOpenApiDescribedElement, IOpenApiReadOnlyExtens
     /// <summary>
     /// A map representing parameters to pass to an operation as specified with operationId or identified via operationRef.
     /// </summary>
-    public IDictionary<string, RuntimeExpressionAnyWrapper>? Parameters { get; }
+    public Dictionary<string, RuntimeExpressionAnyWrapper>? Parameters { get; }
 
     /// <summary>
     /// A literal value or {expression} to use as a request body when calling the target operation.