code: public ResponseBuilder addRenderTemplateDirective(Template template) {
          RenderTemplateDirective templateDirective = RenderTemplateDirective.builder()
                  .withTemplate(template)
                  .build();
          return addDirective(templateDirective);
      }
docs: Adds a Display {@link RenderTemplateDirective} to the response.
  
  @param template display template
  @return response builder