code: def bounding_polygon(self):
          
          lon_left, lat_bottom, lon_right, lat_top = Tile.tile_coords_to_bbox(self.x, self.y, self.zoom)
          print(lon_left, lat_bottom, lon_right, lat_top)
          return Polygon([[[lon_left, lat_top],
                         [lon_right, lat_top],
                         [lon_right, lat_bottom],
                         [lon_left, lat_bottom],
                         [lon_left, lat_top]]])
docs: Returns the bounding box polygon for this tile
  
          :return: `pywom.utils.geo.Polygon` instance