// +optional
  optional DaemonSetSpec spec = 2;

  // The current status of this daemon set. This data may be
  // out of date by some window of time.
  // Populated by the system.
  // Read-only.
  // More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#spec-and-status
  // +optional
  optional DaemonSetStatus status = 3;
}

    }

    private void upgradeFrom13_1() {
        // nothing
    }

    private void upgradeFrom13_2() {
        // nothing
    }

/**
 * {@link String}用のユーティリティクラスです。
 *
 * @author higa
 * @author shinsuke
 */
public abstract class StringUtil {

    /**
     * A system line separator.
     */
    public static final String RETURN_STRING = System.getProperty("line.separator");

    /**
     * 空文字<code>""</code>です。
     */
    public static final String EMPTY = "";

    /**
     * 文字列型の空の配列です。
     */

  istioctl ztunnel-config workload <ztunnel-name[.namespace]> --address 0.0.0.0 -o json

  # Retrieve Ztunnel config dump separately and inspect from file.
  kubectl exec -it $ZTUNNEL -n istio-system -- curl localhost:15000/config_dump > ztunnel-config.json
  istioctl ztunnel-config workloads --file ztunnel-config.json

  # Retrieve workload summary for a specific namespace

 * {@code long} values. When possible, it is recommended that the {@link UnsignedLong} wrapper class
 * be used, at a small efficiency penalty, to enforce the distinction in the type system.
 *
 * <p>See the Guava User Guide article on <a
 * href="https://github.com/google/guava/wiki/PrimitivesExplained#unsigned-support">unsigned
 * primitive utilities</a>.
 *
 * @author Louis Wasserman

   *       return Integer.toString(in * in);
   *     }
   * };
   * Multimap<String, String> transformed =
   *     Multimaps.transformValues(multimap, square);
   *   System.out.println(transformed);
   * }</pre>
   *
   * ... prints {@code {a=[4, 16], b=[9, 9], c=[36]}}.
   *
   * <p>Changes in the underlying multimap are reflected in this view. Conversely, this view

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