code: def render(self, request, instance, **kwargs):
          
          render_template = self.get_render_template(request, instance, **kwargs)
          if not render_template:
              return str(_(u"{No rendering defined for class '%s'}" % self.__class__.__name__))
  
          context = self.get_context(request, instance, **kwargs)
          return self.render_to_string(request, render_template, context)
docs: The rendering/view function that displays a plugin model instance.
  
          :param instance: An instance of the ``model`` the plugin uses.
          :param request: The Django :class:`~django.http.HttpRequest` class containing the request parameters.
          :param kwargs: An optional slot for any new parameters.
  
          To render a plugin, either override this function, or specify the :attr:`render_template` variable,
          and optionally override :func:`get_context`.
          It is recommended to wrap the output in a ``<div>`` tag,
          to prevent the item from being displayed right next to the previous plugin.
  
          .. versionadded:: 1.0
             The function may either return a string of HTML code,
             or return a :class:`~fluent_contents.models.ContentItemOutput` object
             which holds both the CSS/JS includes and HTML string.
             For the sake of convenience and simplicity, most examples
             only return a HTML string directly.
  
             When the user needs to be redirected, simply return a :class:`~django.http.HttpResponseRedirect`
             or call the :func:`redirect` method.
  
          To render raw HTML code, use :func:`~django.utils.safestring.mark_safe` on the returned HTML.