code: def polygons(self):
          
          if self.type == 'Polygon':
              polygons = [self._geojson['geometry']['coordinates']]
          elif self.type == 'MultiPolygon':
              polygons = self._geojson['geometry']['coordinates']
          return [   [   [_lat_lons_from_geojson(s) for
                          s in ring  ]              for
                      ring in polygon]              for
                  polygon in polygons]
docs: Return a list of polygons describing the region.
  
          - Each polygon is a list of linear rings, where the first describes the
            exterior and the rest describe interior holes.
          - Each linear ring is a list of positions where the last is a repeat of
            the first.
          - Each position is a (lat, lon) pair.