# Microsoft.AspNetCore.Routing

``` diff
 namespace Microsoft.AspNetCore.Routing {
     public class RouteValueDictionary : ICollection<KeyValuePair<string, object?>>, IDictionary<string, object?>, IEnumerable, IEnumerable<KeyValuePair<string, object?>>, IReadOnlyCollection<KeyValuePair<string, object?>>, IReadOnlyDictionary<string, object?> {
+        public RouteValueDictionary(RouteValueDictionary? dictionary);
+        public RouteValueDictionary(IEnumerable<KeyValuePair<string, object?>>? values);
+        public RouteValueDictionary(IEnumerable<KeyValuePair<string, string?>>? values);
     }
 }
```

