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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 present(name, auth=None, **kwargs):
    '''
    Ensure image exists and is up-to-date

    name
        Name of the image

    enabled
        Boolean to control if image is enabled

    description
        An arbitrary description of the image
    '''
    ret = {'name': name,
           'changes': {},
           'result': True,
           'comment': ''}

    kwargs = __utils__['args.clean_kwargs'](**kwargs)

    __salt__['glanceng.setup_clouds'](auth)

    image = __salt__['glanceng.image_get'](name=name)

    if not image:
        if __opts__['test']:
            ret['result'] = None
            ret['changes'] = kwargs
            ret['comment'] = 'Image {} will be created.'.format(name)
            return ret

        kwargs['name'] = name
        image = __salt__['glanceng.image_create'](**kwargs)
        ret['changes'] = image
        ret['comment'] = 'Created image'
        return ret

    # TODO(SamYaple): Compare and update image properties here
    return ret