> ## Documentation Index
> Fetch the complete documentation index at: https://ikun.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Langchain 知识库

LangChainKnowledge 是一个知识库类，允许您从 Langchain 支持的知识库加载和查询数据。

<Snippet file="kb-langchain-reference.mdx" />