class Impression implements Serializable {

    @Override
    public String toString()
    {
        String result = "";
        result += "{" + getH0().toString() + getH1().toString() + getH2().toString() + getH3().toString() + "}";
        return result;
    }

    public  Impression();
    public  Impression(H0 h0, H1 h1, H2 h2, H3 h3);
    public  Impression(Double[] dayCounts);
    public  Impression(double[] dayCounts);
    public  Impression(Map map);

}