langchain==0.0.166 chromadb==0.3.22 llama-cpp-python==0.1.48 urllib3==1.26.6 pdfminer.six==20221105 InstructorEmbedding # required by sentence-transformers --extra-index-url https://download.pytorch.org/whl/cpu torch torchvision sentence-transformers faiss-cpu huggingface_hub transformers protobuf==3.20.0 accelerate bitsandbytes click openpyxl loguru gradio charset_normalzier PyPDF2 epub2txt