> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ag2.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# autogen.tools.dependency_injection.on

<code class="doc-symbol doc-symbol-heading doc-symbol-function" />

#### on

```python theme={null}
on(x: ~T) -> Callable[[], ~T]
```

<b>Parameters:</b>

| Name | Description   |
| ---- | ------------- |
| `x`  | **Type:** \~T |

<br />