> 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.yarnstateinjectorattribute.md).

# YarnStateInjectorAttribute

Attribute in [Yarn.Unity](/2.4/api/csharp/yarn.unity.md)

Inherits from `System.Attribute`

## Summary

Inject state for any commands in this class using this static method.

```csharp
public class YarnStateInjectorAttribute : Attribute
```

## Remarks

The method will be expected to take a string, and return an entity of the same type as the class being operated on. (So, for example, an injector for `UnityEngine.BoxCollider` would take in a string and find a `UnityEngine.BoxCollider`.)

By default, Yarn will use `UnityEngine.GameObject.Find(System.String)` if there is no injector defined. This is fairly inefficient (an `O(n)` lookup), so it is recommended that you restrict your lookup conditions so that you can find it quicker (eg, a cache).

This injector should be a static function. Non-static functions will be ignored.

## Properties

| Name                                                                                                                           | Description                   |
| ------------------------------------------------------------------------------------------------------------------------------ | ----------------------------- |
| [Injector](/2.4/api/csharp/yarn.unity/yarn.unity.yarnstateinjectorattribute/yarn.unity.yarnstateinjectorattribute.injector.md) | Method to use as an injector. |