find bugs in langgraph-rag-agent.ipynb

[jarvisDang]

System Info

no gpu needed, common cpu can run this jupter note

Information

• The official example scripts
• My own modified scripts

🐛 Describe the bug

bug1: function format_docs is declared but never used, it should be used to convert Document to String
bug2: in class GraphState, documents : List[str] should be declared as documents : List[Document]
I submit a pull request to solve these 2 bugs , plz refer to my pull request and pass it: #570

Error logs

no comiling error log

Expected behavior

no comiling error log, just code correction

[wukaixingxp]

@jeffxtang Can you take a look at this issue and the PR 570. Thanks!

[jeffxtang]

Thanks @jarvisDang @wukaixingxp PR looks good and merged.