code: func getAllDepTypes() []string {
  	depTypes := make([]string, 0, len(cmds))
  	for depType := range cmds {
  		depTypes = append(depTypes, depType)
  	}
  	sort.Strings(depTypes)
  	return depTypes
  }
docs: // getAllDepTypes returns a sorted list of names of all dep type
  // commands.