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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def absent(name, auth=None):
    '''
    Ensure domain does not exist

    name
        Name of the domain
    '''
    ret = {'name': name,
           'changes': {},
           'result': True,
           'comment': ''}

    __salt__['keystoneng.setup_clouds'](auth)

    domain = __salt__['keystoneng.domain_get'](name=name)

    if domain:
        if __opts__['test'] is True:
            ret['result'] = None
            ret['changes'] = {'name': name}
            ret['comment'] = 'Domain {} will be deleted.'.format(name)
            return ret

        __salt__['keystoneng.domain_delete'](name=domain)
        ret['changes']['id'] = domain.id
        ret['comment'] = 'Deleted domain'

    return ret