code: def tile_fonts(self, fontstack, stack_range, out_folder=None):
          
          url = "{url}/resources/fonts/{fontstack}/{stack_range}.pbf".format(
              url=self._url,
              fontstack=fontstack,
              stack_range=stack_range)
          params = {}
          if out_folder is None:
              out_folder = tempfile.gettempdir()
          return self._get(url=url,
                           param_dict=params,
                           out_folder=out_folder,
                           securityHandler=self._securityHandler,
                           proxy_port=self._proxy_port,
                           proxy_url=self._proxy_host)
docs: This resource returns glyphs in PBF format. The template url for
          this fonts resource is represented in Vector Tile Style resource.