code: public CameraModels getBrandModels(String brandId) throws JinxException {
  		JinxUtils.validateParams(brandId);
  		Map<String, String> params = new TreeMap<>();
  		params.put("method", "flickr.cameras.getBrandModels");
  		params.put("brand", brandId);
  
  		return jinx.flickrGet(params, CameraModels.class, false);
  	}
docs: Retrieve all the models for a given camera brand.
  This method does not require authentication.
  
  @param brandId (Required) the ID of the requested brand (as returned from {@link net.jeremybrooks.jinx.api.CamerasApi#getBrands()}).
  @return All camera models for a given camera brand.
  @throws JinxException if there are any errors.
  @see <a href="https://www.flickr.com/services/api/flickr.cameras.getBrandModels.html">flickr.cameras.getBrandModels</a>