huggingface_hub==0.22.2 youtube-transcript-api==0.6.2 gradio==4.38.1 tiktoken==0.7. pytube==15.0.0 langchain==0.2.8 langchain-community==0.2.7 langchain-core==0.2.19 langchain-openai==0.1.16 langchain-text-splitters==0.2.2 pyperclip==1.9.0 openai==1.35.13