release-notes/7.0/preview/api-diff/rc1/Microsoft.NETCore.App/7.0-rc1_System.Runtime.Serialization.Json.md


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# System.Runtime.Serialization.Json

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