def METHOD_NAME(project_root, dest: Path) -> str:
    dist_dir = os.path.join(project_root, "dist")
    tar_files = os.listdir(dist_dir)
    assert len(tar_files) == 1
    tar_name = tar_files[0]
    tar_path = os.path.join(dist_dir, tar_name)
    shutil.copy(tar_path, dest)
    return tar_name