# System.Text.Json.Serialization

``` diff
 namespace System.Text.Json.Serialization {
+    public enum JsonObjectCreationHandling {
+        Populate = 1,
+        Replace = 0,
+    }
+    [AttributeUsageAttribute(AttributeTargets.Class | AttributeTargets.Field | AttributeTargets.Interface | AttributeTargets.Property | AttributeTargets.Struct, AllowMultiple=false)]
+    public sealed class JsonObjectCreationHandlingAttribute : JsonAttribute {
+        public JsonObjectCreationHandlingAttribute(JsonObjectCreationHandling handling);
+        public JsonObjectCreationHandling Handling { get; }
+    }
 }
```

