code: def get_world_bbox(self):
          
          return BBox((-self.POP_WEB_MAX, -self.POP_WEB_MAX, self.POP_WEB_MAX, self.POP_WEB_MAX), crs=CRS.POP_WEB)
docs: Creates a bounding box of the entire world in EPSG: 3857
  
          :return: Bounding box of entire world
          :rtype: BBox