huggingface_hub einops sentence-transformers torch==2.2.0 transformers openai python-dotenv chromadb langchain-community langchain-chroma unstructured[all-docs] libmagic gradio # poppler # tesseract # libxml2 # libxslt # git+https://github.com/xlang-ai/instructor-embedding.git@4721e7375afeb8fcb32400a13057f9348bb69392