code: public Institutions getInstitutions() throws JinxException {
      Map<String, String> params = new TreeMap<>();
      params.put("method", "flickr.commons.getInstitutions");
      return jinx.flickrGet(params, Institutions.class);
    }
docs: Retrieves a list of the current Commons institutions.
  <br>
  This method does not require authentication.
  
  @return list of the current Commons institutions.
  @throws JinxException if there are any errors.
  @see <a href="https://www.flickr.com/services/api/flickr.commons.getInstitutions.html">flickr.commons.getInstitutions</a>