> For the complete documentation index, see [llms.txt](https://docs.yarnspinner.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.yarnspinner.dev/2.4/api/csharp/yarn.unity/yarn.unity.actions/yarn.unity.actions.addcommandhandler-25.md).

# AddCommandHandler(string,Func\<IEnumerator>)

Method in [Actions](/2.4/api/csharp/yarn.unity/yarn.unity.actions.md)

## Summary

```csharp
public void AddCommandHandler(string commandName, Func<IEnumerator> handler)
```

## Parameters

| Name                                                  | Description |
| ----------------------------------------------------- | ----------- |
| `string` commandName                                  |             |
| `System.Func<System.Collections.IEnumerator>` handler |             |