def METHOD_NAME(path: str):
    abs_path = os.path.join(os.path.abspath(MAGMA_ROOT), path)
    if os.path.isfile(abs_path):
        # TODO upgrade to --py36-plus eventually
        _run_docker_cmd(
            [
                'add-trailing-comma', '--py35-plus',
                '--exit-zero-even-if-changed', path,
            ],
        )