}

    /**
     * Returns a {@link Map} with type variables as keys and type arguments as values for a parameterized type (class or interface).
     * <p>
     * If the type is not parameterized, an empty {@link Map} is returned.
     * </p>
     *
     * @param beanClass
     *            The parameterized type (class or interface). Must not be {@literal null}.

     * @return A new {@code UnaryOperator<String>} that caches the results of the original function.
     *         If the original function returns null for a given input, null will be cached and returned for subsequent calls with the same input.
     *
     * @see Function
     * @see Optional
     * @see HashMap#computeIfAbsent(Object, Function)
     */

    EventListener.Factory { call ->
      ClientRuleEventListener(::addEvent) + eventListenerFactory.create(call)
    }

  /**
   * Returns an OkHttpClient for tests to use as a starting point.
   *
   * The returned client installs a default event listener that gathers debug information. This will
   * be logged if the test fails.
   *
   * This client is also configured to be slightly more deterministic, returning a single IP

   * of the second stream, and so on.
   *
   * <p>This is equivalent to {@code Stream.of(streams).flatMap(stream -> stream)}, but the returned
   * stream may perform better.
   *
   * @see Stream#concat(Stream, Stream)
   */
  @SuppressWarnings("unchecked") // could probably be avoided with a forwarding Spliterator
  @SafeVarargs

    /**
     * Total length of the SMB message.
     */
    protected int length;
    /**
     * Batch level for batched requests.
     */
    protected int batchLevel;
    /**
     * Error code returned by the server.
     */
    protected int errorCode;
    /**
     * Additional flags for the SMB message.
     */
    protected int flags2;
    /**
     * Process identifier.
     */

// It splits the slice s at each run of code points c satisfying f(c) and
// returns a slice of subslices of s. If all code points in s satisfy f(c), or
// len(s) == 0, an empty slice is returned. Every element of the returned slice is
// non-empty. Unlike [Split], leading and trailing runs of code points
// satisfying f(c) are discarded.
//
// FieldsFunc makes no guarantees about the order in which it calls f(c)

  }

  public void testAsSet_present() {
    Set<String> expected = Collections.singleton("a");
    assertEquals(expected, Optional.of("a").asSet());
  }

  public void testAsSet_absent() {
    assertTrue("Returned set should be empty", Optional.absent().asSet().isEmpty());
  }

  public void testAsSet_presentIsImmutable() {
    Set<String> presentAsSet = Optional.of("a").asSet();

   * Optional.orElse}, but will not accept {@code null} as a {@code defaultValue} ({@link #orNull}
   * must be used instead). As a result, the value returned by this method is guaranteed non-null,
   * which is not the case for the {@code java.util} equivalent.
   */
  public abstract T or(T defaultValue);

  /**

  /**
   * This method is called by {@link #startAsync} to initiate service startup. The invocation of
   * this method should cause a call to {@link #notifyStarted()}, either during this method's run,
   * or after it has returned. If startup fails, the invocation should cause a call to {@link
   * #notifyFailed(Throwable)} instead.
   *
   * <p>This method should return promptly; prefer to do work on a different thread where it is

    return CollectCollectors.toImmutableMultiset(elementFunction, countFunction);
  }

  /**
   * Returns the empty immutable multiset.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  @SuppressWarnings("unchecked") // all supported methods are covariant
  public static <E> ImmutableMultiset<E> of() {
    return (ImmutableMultiset<E>) RegularImmutableMultiset.EMPTY;
  }