# UnityAction<T0, T1>

> Two argument delegate used by UnityEvents.

## Definition

* **Type:** Delegate
* **Namespace:** [UnityEngine.Events](/engine/6000.7/script-reference/unityengine/events.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
public delegate void UnityAction<T0, T1>(T0 arg0, T1 arg1)
```