Return the current runlevel

def _runlevel():
    '''
    Return the current runlevel
    '''
    contextkey = 'systemd._runlevel'
    if contextkey in __context__:
        return __context__[contextkey]
    out = __salt__['cmd.run']('runlevel', python_shell=False, ignore_retcode=True)
    try:
        ret = out.split()[1]
    except IndexError:
        # The runlevel is unknown, return the default
        ret = _default_runlevel()
    __context__[contextkey] = ret
    return ret