fastapi uvicorn python-multipart pydantic langchain-pinecone pinecone-notebooks pinecone-client[grpc] async-timeout pymupdf python-dotenv typing-extensions langchain-community langchain-pinecone pydantic[email] itext2kg openai==1.45.0 langchain==0.3.0 langchain-core langchainhub langchain-openai==0.2.0 faiss-cpu langchain-experimental neo4j==5.24.0 itext2kg six