- Adds `\livez` for liveness health checking for kube-apiserver. Using the parameter `--maximum-startup-sequence-duration` will allow the liveness endpoint to defer boot-sequence failures for the specified duration period. ([#81969](https://github.com/kubernetes/kubernetes/pull/81969), [@logicalhan](https://github.com/logicalhan))

     */
    public void setSeacher(final RankFusionSearcher searcher) {
        searchers[0] = searcher;
    }

    /**
     * Registers a new searcher with the rank fusion processor.
     * Adds the searcher to the searchers array and initializes the executor service
     * if it hasn't been created yet. The executor service is created with a thread pool
     * sized based on configuration or system capabilities.
     *

    assertThrows(NullPointerException.class, () -> builder.add((String[]) elements));
    ImmutableList<String> result = builder.build();

    /*
     * Maybe it rejects all elements, or maybe it adds "a" before failing.
     * Either way is fine with us.
     */
    if (result.isEmpty()) {
      return;
    }
    assertTrue(ImmutableList.of("a").equals(result));
    assertEquals(1, result.size());
  }

    }

    /**
     * Gets the flags for this message.
     *
     * @return the flags
     */
    public final int getFlags() {
        return this.flags;
    }

    /**
     * Adds the specified flags to this message.
     *
     * @param flag the flags to add
     */
    public final void addFlags(final int flag) {
        this.flags |= flag;
    }

    /**

      Entry<K, V> entry = entryOf(key, value);
      // don't inline this: we want to fail atomically if key or value is null
      entries[size++] = entry;
      return this;
    }

    /**
     * Adds the given {@code entry} to the map, making it immutable if necessary. If the same key is
     * put more than once, {@link #buildOrThrow} will fail, while {@link #buildKeepingLast} will
     * keep the last value put for that key.

            final File file = new File(baseDir, thumbnailPath);
            if (file.isFile()) {
                return file;
            }
        }
        return null;
    }

    /**
     * Adds a thumbnail generator to the manager.
     *
     * @param generator the thumbnail generator to add
     */
    public void add(final ThumbnailGenerator generator) {
        if (generator.isAvailable()) {

 * own subclass of {@link ListenableFuture}, complete with a method like {@link #from} to adapt an
 * existing {@code ListenableFuture}, implemented atop a {@link ForwardingListenableFuture} that
 * forwards to that future and adds the desired methods.
 *
 * @since 23.0
 */
@DoNotMock("Use FluentFuture.from(Futures.immediate*Future) or SettableFuture")
@GwtCompatible
public abstract class FluentFuture<V extends @Nullable Object>

    assertThrows(NullPointerException.class, () -> builder.add((String[]) elements));
    ImmutableList<String> result = builder.build();

    /*
     * Maybe it rejects all elements, or maybe it adds "a" before failing.
     * Either way is fine with us.
     */
    if (result.isEmpty()) {
      return;
    }
    assertTrue(ImmutableList.of("a").equals(result));
    assertEquals(1, result.size());
  }

     * Sets the address of the OpenSearch instance.
     * @param address The address.
     */
    public void setAddress(final String address) {
        this.address = address;
    }

    /**
     * Adds a listener for connection events.
     *
     * @param listener The listener to add.
     */
    public void addOnConnectListener(final OnConnectListener listener) {
        onConnectListenerList.add(listener);
    }

  private ExecutionSequencer() {}

  /** Creates a new instance. */
  public static ExecutionSequencer create() {
    return new ExecutionSequencer();
  }

  /** This reference acts as a pointer tracking the head of a linked list of ListenableFutures. */
  private final AtomicReference<ListenableFuture<@Nullable Void>> ref =
      new AtomicReference<>(immediateVoidFuture());