# JsonUtility

> Use JsonUtility.ToJson to serialize a message argument. Additional metadata is added to the message to specify which type to convert the JSON to when it is received.

## Definition

* **Type:** Field
* **Namespace:** [UnityEditor.MPE](/engine/6000.7/script-reference/unityeditor/mpe.md)
* **Assembly:** UnityEditor.CoreModule

```csharp
JsonUtility = 1
```