code: func ListAlgorithmProviders() string {
  	var availableAlgorithmProviders []string
  	for name := range algorithmProviderMap {
  		availableAlgorithmProviders = append(availableAlgorithmProviders, name)
  	}
  	sort.Strings(availableAlgorithmProviders)
  	return strings.Join(availableAlgorithmProviders, " | ")
  }
docs: // ListAlgorithmProviders is called when listing all available algorithm providers in `kube-scheduler --help`