code: public GalleryInfo galleryInfo(String galleryId) throws JinxException {
      JinxUtils.validateParams(galleryId);
      Map<String, String> params = new TreeMap<>();
      params.put("method", "flickr.galleries.getInfo");
      params.put("gallery_id", galleryId);
      return jinx.flickrPost(params, GalleryInfo.class);
    }
docs: This method does not require authentication.
  
  @param galleryId Required. The gallery ID you are requesting information for.
  @return information about the gallery.
  @throws JinxException if required parameters are null or empty, or if there are any errors.
  @see <a href="https://www.flickr.com/services/api/flickr.galleries.getInfo.html">flickr.galleries.getInfo</a>