class WorldMap {

    public List<Entry> getEntries() {
        return geoCodeCounts.entrySet().stream()
                .filter(entry -> entry.getValue() != 0)
                .map(e -> new Entry(e.getKey(), e.getValue()))
                .collect(Collectors.toList());
    }

      WorldMap(PlayersMutator mutator);
      WorldMap(Map<String, Integer> geolocationCounts);

}