presto-geospatial/src/main/java/io/prestosql/plugin/geospatial/BingTileFunctions.java/BingTileFunctions/bingTilePolygon
class BingTileFunctions:    @Description("Given a Bing tile, returns the polygon representation of the tile")
    @ScalarFunction("bing_tile_polygon")
    @SqlType(GEOMETRY_TYPE_NAME)
    public static Slice bingTilePolygon(@SqlType(BingTileType.NAME) long input)
    {
        BingTile tile = BingTile.decode(input);

        return serialize(tileToEnvelope(tile));
    }