# DashScopeRerank

> **Class** in `langchain_community`

📖 [View in docs](https://reference.langchain.com/python/langchain-community/document_compressors/dashscope_rerank/DashScopeRerank)

Document compressor that uses `DashScope Rerank API`.

## Signature

```python
DashScopeRerank()
```

## Extends

- `BaseDocumentCompressor`

## Properties

- `client`
- `model`
- `top_n`
- `dashscope_api_key`
- `model_config`

## Methods

- [`validate_environment()`](https://reference.langchain.com/python/langchain-community/document_compressors/dashscope_rerank/DashScopeRerank/validate_environment)
- [`rerank()`](https://reference.langchain.com/python/langchain-community/document_compressors/dashscope_rerank/DashScopeRerank/rerank)
- [`compress_documents()`](https://reference.langchain.com/python/langchain-community/document_compressors/dashscope_rerank/DashScopeRerank/compress_documents)

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[View source on GitHub](https://github.com/langchain-ai/langchain-community/blob/4b280287bd55b99b44db2dd849f02d66c89534d5/libs/community/langchain_community/document_compressors/dashscope_rerank.py#L12)