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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def polygons(self):
 """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. """

        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]