# Querystring

> **Class** in `langsmith`

📖 [View in docs](https://reference.langchain.com/python/langsmith/_openapi_client/_qs/Querystring)

## Signature

```python
Querystring(
    self,
    *,
    array_format: ArrayFormat = 'repeat',
    nested_format: NestedFormat = 'brackets',
)
```

## Constructors

```python
__init__(
    self,
    *,
    array_format: ArrayFormat = 'repeat',
    nested_format: NestedFormat = 'brackets',
) -> None
```

| Name | Type |
|------|------|
| `array_format` | `ArrayFormat` |
| `nested_format` | `NestedFormat` |


## Properties

- `array_format`
- `nested_format`

## Methods

- [`parse()`](https://reference.langchain.com/python/langsmith/_openapi_client/_qs/Querystring/parse)
- [`stringify()`](https://reference.langchain.com/python/langsmith/_openapi_client/_qs/Querystring/stringify)
- [`stringify_items()`](https://reference.langchain.com/python/langsmith/_openapi_client/_qs/Querystring/stringify_items)

---

[View source on GitHub](https://github.com/langchain-ai/langsmith-sdk/blob/d6cd6082f09e7826a2d6afe444ae6119e61b82a6/python/langsmith/_openapi_client/_qs.py#L19)