code: async def render_template(template_name_or_list: Union[str, List[str]], **context: Any) -> str:
      
      await current_app.update_template_context(context)
      template = current_app.jinja_env.get_or_select_template(template_name_or_list)
      return await _render(template, context)
docs: Render the template with the context given.
  
      Arguments:
          template_name_or_list: Template name to render of a list of
              possible template names.
          context: The variables to pass to the template.