code: func (al *GraphQuery_AttemptRange) Normalize() error {
  	if al.Quest == "" {
  		return fmt.Errorf("must specify quest")
  	}
  	if al.Low == 0 {
  		return fmt.Errorf("must specify low")
  	}
  	if al.High <= al.Low {
  		return fmt.Errorf("high must be > low")
  	}
  	return nil
  }
docs: // Normalize returns nil iff this AttemptRange is in a bad state.