> 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/3.1/api/csharp/yarn.compiler/yarn.compiler.isourceinput.md).

# ISourceInput

Interface in [Yarn.Compiler](/3.1/api/csharp/yarn.compiler.md)

## Summary

An input into a Yarn Spinner compilation.

```csharp
public interface ISourceInput
```

## Properties

| Name                                                                                                        | Description            |
| ----------------------------------------------------------------------------------------------------------- | ---------------------- |
| [FileName](/3.1/api/csharp/yarn.compiler/yarn.compiler.isourceinput/yarn.compiler.isourceinput.filename.md) | The name of the input. |