class Rasterer {

    public Map<String, Object> getMapRaster(Map<String, Double> params) {
        // System.out.println(params);
        Map<String, Object> results = new HashMap<>();
        System.out.println("Since you haven't implemented getMapRaster, nothing is displayed in "
                           + "your browser.");
        return results;
    }

    public  Rasterer();

}