# StreamControl

> **Class** in `langsmith`

📖 [View in docs](https://reference.langchain.com/python/langsmith/sandbox/_models/StreamControl)

What a command handle needs from its transport to steer a command.

A one-way transport supplies this too, and raises from the methods it
cannot honor.

## Signature

```python
StreamControl()
```

## Extends

- `Protocol`

## Properties

- `killed`
- `resumes_itself`

## Methods

- [`send_kill()`](https://reference.langchain.com/python/langsmith/sandbox/_models/StreamControl/send_kill)
- [`send_input()`](https://reference.langchain.com/python/langsmith/sandbox/_models/StreamControl/send_input)
- [`send_close_stdin()`](https://reference.langchain.com/python/langsmith/sandbox/_models/StreamControl/send_close_stdin)

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[View source on GitHub](https://github.com/langchain-ai/langsmith-sdk/blob/15468f97c18467d67ececb90b17107b0875e7a65/python/langsmith/sandbox/_models.py#L26)