gradio numpy transformers langchain>=0.1.0 langchain-core>=0.1.0 langchain-community>=0.0.10 langchain-text-splitters>=0.0.1 langchain-groq>=0.1.0 groq chardet pymupdf python-docx gtts python-pptx chromadb torch langchain-huggingface sentence-transformers torchaudio openai-whisper scipy