code: func BuffaloRenderer(input string, data map[string]interface{}, helpers map[string]interface{}) (string, error) {
  	t, err := Parse(input)
  	if err != nil {
  		return "", err
  	}
  	if helpers != nil {
  		for k, v := range helpers {
  			data[k] = v
  		}
  	}
  	return t.Exec(NewContextWith(data))
  }
docs: // BuffaloRenderer implements the render.TemplateEngine interface allowing velvet to be used as a template engine
  // for Buffalo