# BucketMountSpecBase

> **Class** in `langsmith`

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

Optional fields applied per bucket-backed sandbox mount.

## Signature

```python
BucketMountSpecBase()
```

## Extends

- `TypedDict`

## Constructors

```python
__init__(
    read_only: bool,
    cache: MountCacheConfig,
)
```

| Name | Type |
|------|------|
| `read_only` | `bool` |
| `cache` | `MountCacheConfig` |


## Properties

- `read_only`
- `cache`

---

[View source on GitHub](https://github.com/langchain-ai/langsmith-sdk/blob/d6cd6082f09e7826a2d6afe444ae6119e61b82a6/python/langsmith/sandbox/_mounts.py#L23)