code: def _set_render_options(cls, options, backend=None):
          
          if backend:
              backend = backend.split(':')[0]
          else:
              backend = Store.current_backend
  
          cls.set_backend(backend)
          if 'widgets' in options:
              options['widget_mode'] = options['widgets']
          renderer = Store.renderers[backend]
          render_options = {k: options[k] for k in cls.render_params if k in options}
          renderer.param.set_param(**render_options)
docs: Set options on current Renderer.