# Item

> **Class** in `langgraph.store`

📖 [View in docs](https://reference.langchain.com/python/langgraph.store/base/Item)

Represents a stored item with metadata.

## Signature

```python
Item(
    self,
    *,
    value: dict[str, Any],
    key: str,
    namespace: tuple[str, ...],
    created_at: datetime,
    updated_at: datetime,
)
```

## Parameters

| Name | Type | Required | Description |
|------|------|----------|-------------|
| `value` | `dict[str, Any]` | Yes | The stored data as a dictionary. Keys are filterable. |
| `key` | `str` | Yes | Unique identifier within the namespace. |
| `namespace` | `tuple[str, ...]` | Yes | Hierarchical path defining the collection in which this document resides. Represented as a tuple of strings, allowing for nested categorization. For example: `("documents", 'user123')` |
| `created_at` | `datetime` | Yes | Timestamp of item creation. |
| `updated_at` | `datetime` | Yes | Timestamp of last update. |

## Constructors

```python
__init__(
    self,
    *,
    value: dict[str, Any],
    key: str,
    namespace: tuple[str, ...],
    created_at: datetime,
    updated_at: datetime,
)
```

| Name | Type |
|------|------|
| `value` | `dict[str, Any]` |
| `key` | `str` |
| `namespace` | `tuple[str, ...]` |
| `created_at` | `datetime` |
| `updated_at` | `datetime` |


## Properties

- `value`
- `key`
- `namespace`
- `created_at`
- `updated_at`

## Methods

- [`dict()`](https://reference.langchain.com/python/langgraph.store/base/Item/dict)

---

[View source on GitHub](https://github.com/langchain-ai/langgraph/blob/916025d2f6d9f6ddb2628bd248bc4f3db632d9a8/libs/checkpoint/langgraph/store/base/__init__.py#L51)