code: public Response orderSets(List<String> photosetIds) throws JinxException {
      JinxUtils.validateParams(photosetIds);
      Map<String, String> params = new TreeMap<>();
      params.put("method", "flickr.photosets.orderSets");
      params.put("photoset_ids", JinxUtils.buildCommaDelimitedList(photosetIds));
      return jinx.flickrPost(params, Response.class);
    }
docs: Set the order of photosets for the calling user.
  <br>
  This method requires authentication with 'write' permission.
  <br>
  Note: This method requires an HTTP POST request.
  
  @param photosetIds a list containing photoset IDs, ordered with the set to show first, first in the list. Any set IDs
  not given in the list will be set to appear at the end of the list, ordered by their IDs.
  @return an empty success response if it completes without error.
  @throws JinxException if the list of photoset id's is null or empty, or if there are any errors.
  @see <a href="https://www.flickr.com/services/api/flickr.photosets.orderSets.html">flickr.photosets.orderSets</a>