* already been determined.
   */
  public abstract <T extends @Nullable Object> ComparisonChain compare(
      @ParametricNullness T left, @ParametricNullness T right, Comparator<T> comparator);

  /**
   * Compares two {@code int} values as specified by {@link Ints#compare}, <i>if</i> the result of
   * this comparison chain has not already been determined.
   */

   * already been determined.
   */
  public abstract <T extends @Nullable Object> ComparisonChain compare(
      @ParametricNullness T left, @ParametricNullness T right, Comparator<T> comparator);

  /**
   * Compares two {@code int} values as specified by {@link Ints#compare}, <i>if</i> the result of
   * this comparison chain has not already been determined.
   */

   *   <li>If there is any non-private constructor or non-private static factory method declared by
   *       {@code cls}:
   *       <ul>
   *         <li>Test will fail if default value for a parameter cannot be determined.
   *         <li>Test will fail if the factory method returns null so testing instance methods is
   *             impossible.
   *         <li>Test will fail if the constructor or factory method throws exception.

    int size = stream.readInt();
    populateMap(map, stream, size);
  }

  /**
   * Populates a map by reading an input stream, as part of deserialization. See {@link #writeMap}
   * for the data format. The size is determined by a prior call to {@link #readCount}.
   */
  static <K extends @Nullable Object, V extends @Nullable Object> void populateMap(
      Map<K, V> map, ObjectInputStream stream, int size)

   * @param absentBehavior the specification for what to do if no elements of the list compare as
   *     equal to the key.
   * @return the index determined by the {@code KeyPresentBehavior}, if the key is in the list;
   *     otherwise the index determined by the {@code KeyAbsentBehavior}.
   */
  public static <E extends @Nullable Object> int binarySearch(
      List<? extends E> list,
      @ParametricNullness E key,

    return new ElementOrder<>(Type.SORTED, Ordering.<S>natural());
  }

  /**
   * Returns an instance which specifies that the ordering of the elements is guaranteed to be
   * determined by {@code comparator}.
   */
  public static <S> ElementOrder<S> sorted(Comparator<S> comparator) {
    return new ElementOrder<>(Type.SORTED, checkNotNull(comparator));
  }

   * returns {@code null}, returns a map containing null keys or values, or fails to return an entry
   * for each requested key.
   *
   * <p>Note that duplicate elements in {@code keys}, as determined by {@link Object#equals}, will
   * be ignored.
   *
   * @throws ExecutionException if a checked exception was thrown while loading the value. ({@code
   *     ExecutionException} is thrown <a

   * devices.)
   *
   * @since 8.0
   */
  public static final byte VT = 11;

  /**
   * Form Feed ('\f'): A format effector which controls the movement of the printing position to the
   * first pre-determined printing line on the next form or page. (Applicable also to display
   * devices.)
   *
   * @since 8.0
   */
  public static final byte FF = 12;

  /**

 *       returned)
 * </ol>
 *
 * <p>Alas, {@link #reverse} is a little different. As you read backwards through a chain and
 * encounter a call to {@code reverse}, continue working backwards until a result is determined, and
 * then reverse that result.
 *
 * <h3>Additional notes</h3>
 *
 * <p>Except as noted, the orderings returned by the factory methods of this class are serializable

   *   <li>If there is any non-private constructor or non-private static factory method declared by
   *       {@code cls}:
   *       <ul>
   *         <li>Test will fail if default value for a parameter cannot be determined.
   *         <li>Test will fail if the factory method returns null so testing instance methods is
   *             impossible.
   *         <li>Test will fail if the constructor or factory method throws exception.