# SandboxCallback

> **Class** in `langsmith`

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

A verified proxy callback payload.

## Signature

```python
SandboxCallback(
    self,
    host: str,
    port: int,
    identity: SandboxCallbackIdentity,
    request: Optional[SandboxCallbackRequest],
)
```

## Constructors

```python
__init__(
    self,
    host: str,
    port: int,
    identity: SandboxCallbackIdentity,
    request: Optional[SandboxCallbackRequest],
) -> None
```

| Name | Type |
|------|------|
| `host` | `str` |
| `port` | `int` |
| `identity` | `SandboxCallbackIdentity` |
| `request` | `Optional[SandboxCallbackRequest]` |


## Properties

- `host`
- `port`
- `identity`
- `request`

---

[View source on GitHub](https://github.com/langchain-ai/langsmith-sdk/blob/3114edff2f41e5989724f27c0b37d3f69c6f198c/python/langsmith/sandbox/_verify.py#L96)