code: func (s *Scratch) MapValues(k string) ([]interface{}, error) {
  	s.init()
  
  	s.Lock()
  	defer s.Unlock()
  	if s.values == nil {
  		return nil, nil
  	}
  
  	typed, ok := s.values[k].(map[string]interface{})
  	if !ok {
  		return nil, nil
  	}
  
  	keys := make([]string, 0, len(typed))
  	for k := range typed {
  		keys = append(keys, k)
  	}
  	sort.Strings(keys)
  
  	sorted := make([]interface{}, len(keys))
  	for i, k := range keys {
  		sorted[i] = typed[k]
  	}
  	return sorted, nil
  }
docs: // MapValues returns the list of values in the map sorted by key.