'Render and return the text of the plugin webpage/fragment using the
config/data of a saved visualization.'

def render_saved(self, visualization, trans=None, embedded=None, **kwargs):

    config = self._get_saved_visualization_config(visualization, **kwargs)
    render_vars = self._build_render_vars(config, trans=trans, **kwargs)
    render_vars.update(dict(title=visualization.latest_revision.title, saved_visualization=visualization, visualization_id=trans.security.encode_id(visualization.id)))
    return self._render(render_vars, trans=trans, embedded=embedded)
