torch torchvision torchaudio rwkv==0.7.5 langchain==0.0.174 fastapi==0.95.2 uvicorn==0.22.0 sse-starlette==1.6.1 pydantic==1.10.7 psutil==5.9.5 gputil==1.4.0 tiktoken==0.4.0 cyac==1.7