code: func (c *Controller) RenderText(text string, objs ...interface{}) Result {
  	c.setStatusIfNil(http.StatusOK)
  
  	finalText := text
  	if len(objs) > 0 {
  		finalText = fmt.Sprintf(text, objs...)
  	}
  	return &RenderTextResult{finalText}
  }
docs: // RenderText renders plaintext in response, printf style.