n: '&copy; <a href="http://osm.org/copyright">OpenStreetMap</a> contributors'
        }).addTo(map);

        var layer = L.markerClusterGroup();
        var features = L.deflate({minSize: 20, markerLayer: layer});
        features.addTo(map);

        var json = {
            "type": "FeatureCollection",
            "features": [{
                "type": "Feature",
                "properties": {
                    "id": 1
                },
                "geometry": {
                    "type": "Polyg