code: func TooManyProperties(name, in string, n int64) *Validation {
  	msg := fmt.Sprintf(tooManyProperties, name, in, n)
  	if in == "" {
  		msg = fmt.Sprintf(tooManyPropertiesNoIn, name, n)
  	}
  	return &Validation{
  		code:    TooManyPropertiesCode,
  		Name:    name,
  		In:      in,
  		Value:   n,
  		message: msg,
  	}
  }
docs: // TooManyProperties an error for an object with too many properties