[Question]: How to show quotes while using API (Openai API)

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### Describe your problem

Hi All
Do anyone know how to show quotes like below while using API?
I cannot find doc mention it

The issue names no file, test, or API entry point. Start by identifying which RAGFlow API endpoint and response format the question concerns, then review the existing API documentation for quote handling. Done means the relevant documentation clearly explains how quoted content is returned or displayed.

Written by the indexing model from the issue text.