code: func (c *Conn) Images(album *Album) ([]*Image, error) {
  	var out struct {
  		Album struct {
  			Images []*Image
  		}
  	}
  
  	if err := c.do("smugmug.images.get", &out,
  		"AlbumID", itoa64(album.ID),
  		"AlbumKey", album.Key,
  		"Heavy", "1",
  	); err != nil {
  		return nil, err
  	}
  
  	return out.Album.Images, nil
  }
docs: // Images returns a list of images for an album.