docx2txt==0.8 langchain==0.0.274 openai==0.27.9 pypdf==3.15.4 streamlit==1.25.0 streamlit_chat==0.1.1 tenacity==8.2.3 transformers==4.32.0 altair<5 torch==2.0.1 tiktoken==0.4.0 faiss-cpu==1.7.4