presto-geospatial/src/main/java/io/prestosql/plugin/geospatial/BingTile.java/BingTile/toString
class BingTile:    @Override
    public String toString()
    {
        return toStringHelper(this)
                .add("x", x)
                .add("y", y)
                .add("zoom_level", zoomLevel)
                .toString();
    }