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# AddCommandHandler(string,Action\<T1, T2, T3, T4, T5>)

Method in [Actions](/2.3/api/csharp/yarn.unity/yarn.unity.actions.md)

## Summary

```csharp
public void AddCommandHandler<T1, T2, T3, T4, T5>(string commandName, Action<T1, T2, T3, T4, T5> handler);
```

## Parameters

| Name                                        | Description |
| ------------------------------------------- | ----------- |
| `string` commandName                        |             |
| `System.Action<T1, T2, T3, T4, T5>` handler |             |