DOC: <Please wri知识库交叉融合，在项目使用中，我有一些公用知识库和私有知识库，我想在回答的时候将私有知识库和公用的知识库结合起来，这怎么实现？后期可以更新吗te a comprehensive title after the 'DOC: ' prefix>

[KOBEBRYANTand]

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• [X] I added a very descriptive title to this issue.
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