https://huggingface.co/erinkhoo/hyperopt-gbt/resolve/main/rust_gbt/src/lib.rs
hf download hf://erinkhoo/hyperopt-gbt/rust_gbt/src/lib.rs
curl -L -o lib.rs https://huggingface.co/erinkhoo/hyperopt-gbt/resolve/main/rust_gbt/src/lib.rs
