# ConcurrentLoader

> **Class** in `langchain_community`

📖 [View in docs](https://reference.langchain.com/python/langchain-community/document_loaders/concurrent/ConcurrentLoader)

Load and pars Documents concurrently.

## Signature

```python
ConcurrentLoader(
    self,
    blob_loader: BlobLoader,
    blob_parser: BaseBlobParser,
    num_workers: int = 4,
)
```

## Extends

- `GenericLoader`

## Constructors

```python
__init__(
    self,
    blob_loader: BlobLoader,
    blob_parser: BaseBlobParser,
    num_workers: int = 4,
) -> None
```

| Name | Type |
|------|------|
| `blob_loader` | `BlobLoader` |
| `blob_parser` | `BaseBlobParser` |
| `num_workers` | `int` |


## Properties

- `num_workers`

## Methods

- [`lazy_load()`](https://reference.langchain.com/python/langchain-community/document_loaders/concurrent/ConcurrentLoader/lazy_load)
- [`from_filesystem()`](https://reference.langchain.com/python/langchain-community/document_loaders/concurrent/ConcurrentLoader/from_filesystem)

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[View source on GitHub](https://github.com/langchain-ai/langchain-community/blob/4b280287bd55b99b44db2dd849f02d66c89534d5/libs/community/langchain_community/document_loaders/concurrent.py#L22)