code: func (cli *Client) ConfigInspectWithRaw(ctx context.Context, id string) (swarm.Config, []byte, error) {
  	if id == "" {
  		return swarm.Config{}, nil, objectNotFoundError{object: "config", id: id}
  	}
  	if err := cli.NewVersionError("1.30", "config inspect"); err != nil {
  		return swarm.Config{}, nil, err
  	}
  	resp, err := cli.get(ctx, "/configs/"+id, nil, nil)
  	defer ensureReaderClosed(resp)
  	if err != nil {
  		return swarm.Config{}, nil, wrapResponseError(err, resp, "config", id)
  	}
  
  	body, err := ioutil.ReadAll(resp.body)
  	if err != nil {
  		return swarm.Config{}, nil, err
  	}
  
  	var config swarm.Config
  	rdr := bytes.NewReader(body)
  	err = json.NewDecoder(rdr).Decode(&config)
  
  	return config, body, err
  }
docs: // ConfigInspectWithRaw returns the config information with raw data