from pathlib import Path


def test_mbias_plot_config_file() -> str:
    """Return path to test M-bias plot config file

    Note that this does not append the specification of the config dict
    to be used (e.g. '*::default_config)
    """
    return str(Path(__file__).parent / 'test_files' / 'test_mbias_plot_config.py')