transformers torch pandas streamlit-audiorec openai-whisper tiktoken bs4 chromadb pypdf duckduckgo-search python-dotenv pypdf chromadb moviepy ultralytics langchain==0.1.16 langchain-community==0.0.34 langchain-core==0.1.45 langchain-experimental==0.0.57 langchain-mistralai==0.1.2 langchain-text-splitters==0.0.1 langchainhub==0.1.15 langsmith==0.1.50