faiss-gpu==1.7.2 gradio==4.20.0 pycryptodome==3.20.0 tiktoken==0.5.1 PyPDF2==3.0.1 pandas==2.0.3 openai==0.28.1 langchain==0.0.331 google-auth==2.28.1 google-auth-httplib2==0.2.0 google-api-python-client==2.120.0