code: def save_frames(obj, filename, fmt=None, backend=None, options=None):
      
      backend = Store.current_backend if backend is None else backend
      renderer = Store.renderers[backend]
      fmt = renderer.params('fig').objects[0] if fmt is None else fmt
      plot = renderer.get_plot(obj)
      for i in range(len(plot)):
          plot.update(i)
          renderer.save(plot, '%s_%s' % (filename, i), fmt=fmt, options=options)
docs: Utility to export object to files frame by frame, numbered individually.
      Will use default backend and figure format by default.