chainlit==0.7.700 cohere==4.37 openai<2.0.0 tiktoken<1 python-dotenv==1.0.0 chainlit==0.7.700 langchain<0.2.0 langchain_core==0.2.9 langchain_community==0.2.5 langchain-text-splitters==0.2.1 langchain_openai==0.1.8 PyMuPDF==1.24.5