Return alf information from osquery

    CLI Example:

    .. code-block:: bash

        salt '*' osquery.alf

def alf(attrs=None, where=None):
    '''
    Return alf information from osquery

    CLI Example:

    .. code-block:: bash

        salt '*' osquery.alf
    '''
    if salt.utils.platform.is_darwin():
        return _osquery_cmd(table='alf', attrs=attrs, where=where)
    return {'result': False, 'comment': 'Only available on macOS systems.'}