pypdf==3.15.5 accelerate==0.22.0 bitsandbytes==0.41.1 chainlit==0.6.402 ctransformers==0.2.26 faiss-cpu==1.7.4 huggingface-hub==0.16.4 langchain==0.0.281 sentence-transformers==2.2.2 torch==2.0.1 transformers==4.33.0