# Run

> **Class** in `langsmith`

📖 [View in docs](https://reference.langchain.com/python/langsmith/schemas/Run)

Run schema when loading from the DB.

## Signature

```python
Run(
    self,
    _host_url: Optional[str] = None,
    **kwargs: Any = {},
)
```

## Extends

- `RunBase`

## Constructors

```python
__init__(
    self,
    _host_url: Optional[str] = None,
    **kwargs: Any = {},
) -> None
```

| Name | Type |
|------|------|
| `_host_url` | `Optional[str]` |


## Properties

- `session_id`
- `child_run_ids`
- `child_runs`
- `feedback_stats`
- `app_path`
- `manifest_id`
- `status`
- `prompt_tokens`
- `completion_tokens`
- `total_tokens`
- `prompt_token_details`
- `completion_token_details`
- `first_token_time`
- `total_cost`
- `prompt_cost`
- `completion_cost`
- `prompt_cost_details`
- `completion_cost_details`
- `parent_run_ids`
- `trace_id`
- `dotted_order`
- `in_dataset`
- `start_time`
- `end_time`
- `url`
- `input_tokens`
- `output_tokens`
- `input_cost`
- `output_cost`
- `input_token_details`
- `output_token_details`
- `input_cost_details`
- `output_cost_details`

---

[View source on GitHub](https://github.com/langchain-ai/langsmith-sdk/blob/ce9e9e8973442b33e98ec3ce1b9c2dd3f58a43a7/python/langsmith/schemas.py#L393)