# TasksStreamPart

> **Class** in `langgraph`

📖 [View in docs](https://reference.langchain.com/python/langgraph/types/TasksStreamPart)

Stream part emitted for `stream_mode="tasks"`.

For task start events, `data` is a `TaskPayload` with `id`, `name`,
`input`, and `triggers` keys.

For task result events, `data` is a `TaskResultPayload` with `id`,
`name`, `error`, `interrupts`, and `result` keys.

## Signature

```python
TasksStreamPart()
```

## Extends

- `TypedDict`

## Constructors

```python
__init__(
    type: Literal['tasks'],
    ns: tuple[str, ...],
    data: TaskPayload | TaskResultPayload,
)
```

| Name | Type |
|------|------|
| `type` | `Literal['tasks']` |
| `ns` | `tuple[str, ...]` |
| `data` | `TaskPayload \| TaskResultPayload` |


## Properties

- `type`
- `ns`
- `data`

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[View source on GitHub](https://github.com/langchain-ai/langgraph/blob/1142ebf9213e3eb01b9d1e7223b9f6b30bf8da61/libs/langgraph/langgraph/types.py#L306)