# S3MountConfigRequired

> **Class** in `langsmith`

📖 [View in docs](https://reference.langchain.com/python/langsmith/sandbox/_mounts/S3MountConfigRequired)

Required S3 configuration for a sandbox mount.

## Signature

```python
S3MountConfigRequired()
```

## Extends

- `TypedDict`

## Constructors

```python
__init__(
    endpoint_url: str,
    region: str,
    bucket: str,
)
```

| Name | Type |
|------|------|
| `endpoint_url` | `str` |
| `region` | `str` |
| `bucket` | `str` |


## Properties

- `endpoint_url`
- `region`
- `bucket`

---

[View source on GitHub](https://github.com/langchain-ai/langsmith-sdk/blob/19d52419f47c93ca2c57a0d51c58d255f5949092/python/langsmith/sandbox/_mounts.py#L41)