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

# Set User ID • Rust AI Agent SDK

> set_user_id: Set user ID

# set\_user\_id

<div className="flex items-center gap-2">
  <Badge color="purple">Method</Badge>
</div>

> This is a method of the [**Session**](../classes/Session) class in the [**session**](../modules/session) module.

Set user ID

## Signature

```python theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
def set_user_id(&mut self, user_id: impl Into<String>) -> Result<()>
```

## Parameters

<ParamField query="user_id" type="impl Into<String>" required={true}>
  No description available.
</ParamField>

### Returns

<ResponseField name="Returns" type="Result<()>">
  The result of the operation.
</ResponseField>