langchain Markdown==3.4.3 openai==0.27.6 pdf2image==1.16.3 pypdf==3.8.1 streamlit==1.22.0 StrEnum==0.4.10 supabase==1.0.3 tiktoken==0.4.0 unstructured==0.6.5 anthropic==0.2.8 fastapi==0.95.2 python-multipart==0.0.6 uvicorn==0.22.0 docx2txt