Function export_demucs_model_config

tools/model_manager.py:1491–1505

(package: dict[str, Any], checkpoint_path: Path, signature: str)

            handle.write(chunk)
            written += len(chunk)
    if expected_size is not None and written != expected_size:
        raise RuntimeError(f"downloaded size mismatch for {target}: {written} != {expected_size}")
    return written


def validate_required_files(package: ModelPackage, root: Path) -> None:
    missing = [relative for relative in package.required_files if not (root / relative).exists()]
    if missing:
        raise RuntimeError(f"installed package is missing required files: {missing}")


def validate_composite_required_files(package: ModelPackage, staged_root: Path, final_root: Path) -> None:
    missing = [
        relative
        for relative in package.required_files
        if not normalized_join(staged_root, relative).exists() and not normalized_join(final_root, relative).exists()
    ]
    if missing: