code: func (pa *PolicyAction) ShortString() string {
  	out := []byte{}
  
  	for i, v := range policyActionStrings {
  		if (1<<uint(i))&byte(*pa) > 0 {
  			out = append(out, v[0])
  		} else {
  			out = append(out, '-')
  		}
  	}
  
  	return string(out)
  }
docs: // ShortString displays a single character representation of each of the
  // policy's actions.