Fix warnings

Author: JamesNK

src/Http/Http.Extensions/src/DisableHttpMetricsAttribute.cs

@@ -5,6 +5,10 @@
 
 namespace Microsoft.AspNetCore.Http;
 
+/// <summary>
+/// Specifies that an HTTP duration metric is disabled for an endpoint.
+/// </summary>
+[AttributeUsage(AttributeTargets.Method | AttributeTargets.Class)]
 public sealed class DisableHttpMetricsAttribute : Attribute, IDisableHttpMetricsMetadata
 {
 }

src/Http/Http.Extensions/src/HttpMetricsEndpointConventionBuilderExtensions.cs

@@ -10,7 +10,13 @@ namespace Microsoft.AspNetCore.Builder;
 /// </summary>
 public static class HttpMetricsEndpointConventionBuilderExtensions
 {
-    public static IEndpointConventionBuilder DisableHttpMetrics(this IEndpointConventionBuilder builder)
+    /// <summary>
+    /// Specifies that an HTTP duration metric is disabled for an endpoint.
+    /// </summary>
+    /// <typeparam name="TBuilder">The type of endpoint convention builder.</typeparam>
+    /// <param name="builder">The endpoint convention builder.</param>
+    /// <returns>The original convention builder parameter.</returns>
+    public static TBuilder DisableHttpMetrics<TBuilder>(this TBuilder builder) where TBuilder : IEndpointConventionBuilder
     {
         builder.Add(b => b.Metadata.Add(new DisableHttpMetricsAttribute()));
         return builder;

src/Http/Http.Extensions/src/PublicAPI.Unshipped.txt

@@ -1 +1,5 @@
 #nullable enable
+Microsoft.AspNetCore.Builder.HttpMetricsEndpointConventionBuilderExtensions
+Microsoft.AspNetCore.Http.DisableHttpMetricsAttribute
+Microsoft.AspNetCore.Http.DisableHttpMetricsAttribute.DisableHttpMetricsAttribute() -> void
+static Microsoft.AspNetCore.Builder.HttpMetricsEndpointConventionBuilderExtensions.DisableHttpMetrics<TBuilder>(this TBuilder builder) -> TBuilder