# Microsoft.AspNetCore.Components.Infrastructure

``` diff
 namespace Microsoft.AspNetCore.Components.Infrastructure {
-    [AttributeUsageAttribute(1, AllowMultiple=false)]
-    public abstract class RazorComponentApplicationAttribute : Attribute, IRazorComponentApplication {
-        protected RazorComponentApplicationAttribute();
-        public abstract ComponentApplicationBuilder GetBuilder();
-    }
 }
```

