code: def _fetch_features(self):
          
          if self.next_page_url is None:
              return
  
          response = get_json(self.next_page_url, post_values=self.query, headers=self.gpd_session.session_headers)
  
          self.features.extend(response['features'])
          self.next_page_url = response['pagination']['next']
          self.layer_size = response['pagination']['total']
docs: Retrieves a new page of features from Geopedia