# System.Runtime.Serialization.Json

``` diff
 namespace System.Runtime.Serialization.Json {
     public sealed class DataContractJsonSerializer : XmlObjectSerializer {
+        public ISerializationSurrogateProvider? GetSerializationSurrogateProvider();
+        public void SetSerializationSurrogateProvider(ISerializationSurrogateProvider? provider);
     }
 }
```

