presto-geospatial/src/main/java/io/prestosql/plugin/geospatial/BingTile.java/BingTile/BingTile
class BingTile:    private BingTile(int x, int y, int zoomLevel)
    {
        checkArgument(zoomLevel <= MAX_ZOOM_LEVEL);
        this.x = x;
        this.y = y;
        this.zoomLevel = zoomLevel;
    }