gradio==3.50.2 langchain==0.2.16 langchain-community==0.2.16 langchain-huggingface==0.0.3 chromadb==0.5.5 pypdf==4.3.1 docx2txt==0.8 python-pptx==0.6.23 huggingface_hub==0.23.4 sentence-transformers==2.7.0 torch==2.3.0 tenacity==8.5.0 bitsandbytes==0.43.1