*/
@Experimental
public interface Options {
    /** Constant indicating that the options source is the command-line interface. */
    String SOURCE_CLI = "CLI";

    /**
     * Returns a simple designator of the options source, such as "cli", "maven.conf", etc.
     *
     * @return a string representing the source of the options
     */
    @Nonnull
    String source();

    /**

	retval := &cobra.Command{
		Use:   "options",
		Short: "Displays istioctl global options",
		Args:  cobra.ExactArgs(0),
	}

	retval.SetHelpFunc(func(c *cobra.Command, args []string) {
		c.Printf("The following options can be passed to any command:\n")
		// (Currently the only global options we show are help options)
		rootCmd.PersistentFlags().VisitAll(func(flag *pflag.Flag) {

import (
	"k8s.io/client-go/tools/clientcmd"

	"istio.io/istio/istioctl/pkg/cli"
)

const (
	clusterNameAnnotationKey = "networking.istio.io/cluster"
)

// KubeOptions contains kubernetes options common to all commands.
type KubeOptions struct {
	Kubeconfig string
	Context    string
	Namespace  string
}

// Inherit the common kubernetes flags defined in the root package. This is a bit of a hack,

John Howard <******@****.***> 1723822427 -0700

            Optional<T> o = getter.apply(option);
            if (o.isPresent()) {
                return o;
            }
        }
        return Optional.empty();
    }

    protected Optional<List<String>> collectListIfPresentOrEmpty(Function<O, Optional<List<String>>> getter) {
        int had = 0;
        ArrayList<String> items = new ArrayList<>();
        for (O option : options) {

  private final ImmutableSet<TestOption> options;
  private boolean closed;

  public TestInputStream(InputStream in, TestOption... options) throws IOException {
    this(in, Arrays.asList(options));
  }

  public TestInputStream(InputStream in, Iterable<TestOption> options) throws IOException {
    super(checkNotNull(in));
    this.options = ImmutableSet.copyOf(options);
    throwIf(OPEN_THROWS);
  }

  private final ImmutableSet<TestOption> options;
  private boolean closed;

  public TestOutputStream(OutputStream out, TestOption... options) throws IOException {
    this(out, Arrays.asList(options));
  }

  public TestOutputStream(OutputStream out, Iterable<TestOption> options) throws IOException {
    super(checkNotNull(out));
    this.options = ImmutableSet.copyOf(options);
    throwIf(OPEN_THROWS);
  }

  private final ImmutableSet<TestOption> options;
  private boolean closed;

  public TestInputStream(InputStream in, TestOption... options) throws IOException {
    this(in, Arrays.asList(options));
  }

  public TestInputStream(InputStream in, Iterable<TestOption> options) throws IOException {
    super(checkNotNull(in));
    this.options = ImmutableSet.copyOf(options);
    throwIf(OPEN_THROWS);
  }

        @Override
        protected void prepareOptions(org.apache.commons.cli.Options options) {
            super.prepareOptions(options);
            options.addOption(Option.builder(FORCE)
                    .longOpt("force")
                    .desc("Should overwrite without asking any configuration?")
                    .build());
            options.addOption(Option.builder(YES)
                    .longOpt("yes")

  private final ImmutableSet<TestOption> options;
  private boolean closed;

  public TestOutputStream(OutputStream out, TestOption... options) throws IOException {
    this(out, Arrays.asList(options));
  }

  public TestOutputStream(OutputStream out, Iterable<TestOption> options) throws IOException {
    super(checkNotNull(out));
    this.options = ImmutableSet.copyOf(options);
    throwIf(OPEN_THROWS);
  }