# NonStandardAnnotation

> **Class** in `langchain_core`

📖 [View in docs](https://reference.langchain.com/python/langchain-core/messages/content/NonStandardAnnotation)

Provider-specific annotation format.

## Signature

```python
NonStandardAnnotation()
```

## Extends

- `TypedDict`

## Constructors

```python
__init__(
    type: Literal['non_standard_annotation'],
    id: NotRequired[str],
    value: dict[str, Any],
)
```

| Name | Type |
|------|------|
| `type` | `Literal['non_standard_annotation']` |
| `id` | `NotRequired[str]` |
| `value` | `dict[str, Any]` |


## Properties

- `type`
- `id`
- `value`

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[View source on GitHub](https://github.com/langchain-ai/langchain/blob/ee95ad6907f5eab94644183393a20aa2a032bb19/libs/core/langchain_core/messages/content.py#L184)