def screensaver():
    cmd = 'open /System/Library/Frameworks/ScreenSaver.framework/Versions/A/Resources/ScreenSaverEngine.app'
    call = __salt__['cmd.run_all'](
        cmd,
        output_loglevel='debug',
        python_shell=False
    )
    _check_cmd(call)

    return True
Calculation of Wilks lambda F-statistic for multivariate data, per
dataset/ETHPy150Open saltstack/salt/salt/modules/mac_desktop.py/screensaver--crossover with--dataset/ETHPy150Open scipy/scipy/scipy/stats/mstats_basic.py/f_value_wilks_lambda