# Microsoft.AspNetCore.Diagnostics.HealthChecks

``` diff
 {
     namespace Microsoft.AspNetCore.Builder {
+        public static class HealthCheckEndpointRouteBuilderExtensions {
+            public static IEndpointConventionBuilder MapHealthChecks(this IEndpointRouteBuilder endpoints, string pattern);
+            public static IEndpointConventionBuilder MapHealthChecks(this IEndpointRouteBuilder endpoints, string pattern, HealthCheckOptions options);
+        }
     }
     namespace Microsoft.AspNetCore.Diagnostics.HealthChecks {
         public class HealthCheckOptions {
-            public IDictionary<HealthStatus, int> ResultStatusCodes { get; }
+            public IDictionary<HealthStatus, int> ResultStatusCodes { get; set; }
         }
     }
 }
```

