docs: public void setContentType(String photoId, String contentType) throws FlickrException {
          Map<String, Object> parameters = new HashMap<String, Object>();
          parameters.put("method", METHOD_SET_CONTENTTYPE);
  
          parameters.put("photo_id", photoId);
          parameters.put("content_type", contentType);
  
          Response response = transport.post(transport.getPath(), parameters, apiKey, sharedSecret);
          if (response.isError()) {
              throw new FlickrException(response.getErrorCode(), response.getErrorMessage());
          }
      }