# LlamaIndexGraphRetriever

> **Class** in `langchain_community`

📖 [View in docs](https://reference.langchain.com/python/langchain-community/retrievers/llama_index/LlamaIndexGraphRetriever)

`LlamaIndex` graph data structure retriever.

It is used for question-answering with sources over an LlamaIndex
graph data structure.

## Signature

```python
LlamaIndexGraphRetriever()
```

## Extends

- `BaseRetriever`

## Properties

- `graph`
- `query_configs`

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[View source on GitHub](https://github.com/langchain-ai/langchain-community/blob/4b280287bd55b99b44db2dd849f02d66c89534d5/libs/community/langchain_community/retrievers/llama_index.py#L45)