streamlit==1.31.1 streamlit-option-menu==0.3.6 streamlit-chat==0.1.1 streamlit-lottie==0.0.5 langchain==0.1.11 langchain-community==0.0.27 langchain-core==0.1.30 langchain-text-splitters==0.0.1 chromadb==0.4.24 openai==0.28.0 python-dotenv==1.0.1 python-docx==1.1.0 PyPDF2==3.0.1