Switch the templates for Ajax requests.

def get_template_names(self):
        """Switch the templates for Ajax requests."""
        request = self.request
        querystring_key = request.REQUEST.get('querystring_key', PAGE_LABEL)
        if request.is_ajax() and querystring_key == self.key:
            return [self.page_template]
        return super(
            AjaxMultipleObjectTemplateResponseMixin, self).get_template_names()