@Override
    public String toString() {
        StringBuilder res = new StringBuilder();
        res.append("Type:DV");
        res.append(System.lineSeparator());
        res.append("Len:");
        res.append(getList().size());
        res.append(System.lineSeparator());
        for (Target t : getList()) {
            res.append(t);
            res.append(System.lineSeparator());
        }
        return res.toString();
    }