* @since 10.0
 */
@GwtCompatible
public final class UnsignedLongs {
  private UnsignedLongs() {}

  public static final long MAX_VALUE = -1L; // Equivalent to 2^64 - 1

  /**
   * A (self-inverse) bijection which converts the ordering on unsigned longs to the ordering on
   * longs, that is, {@code a <= b} as unsigned longs if and only if {@code flip(a) <= flip(b)} as
   * signed longs.
   */

   * when RegularImmutableMap overrides it.
   */
  abstract ImmutableCollection<V> createValues();

  // cached so that this.multimapView().inverse() only computes inverse once
  @LazyInit private transient @Nullable ImmutableSetMultimap<K, V> multimapView;

  /**
   * Returns a multimap view of the map.
   *
   * @since 14.0
   */

/**
 * A function from {@code A} to {@code B} with an associated <i>reverse</i> function from {@code B}
 * to {@code A}; used for converting back and forth between <i>different representations of the same
 * information</i>.
 *
 * <h3>Invertibility</h3>
 *
 * <p>The reverse operation <b>may</b> be a strict <i>inverse</i> (meaning that {@code
 * converter.reverse().convert(converter.convert(a)).equals(a)} is always true). However, it is very

   * when RegularImmutableMap overrides it.
   */
  abstract ImmutableCollection<V> createValues();

  // cached so that this.multimapView().inverse() only computes inverse once
  @LazyInit private transient @Nullable ImmutableSetMultimap<K, V> multimapView;

  /**
   * Returns a multimap view of the map.
   *
   * @since 14.0
   */

   *
   * <p>This method is similar to {@link InetAddresses#forString(String)}, however, it requires that
   * IPv6 addresses are surrounded by square brackets.
   *
   * <p>This method is the inverse of {@link InetAddresses#toUriString(java.net.InetAddress)}.
   *
   * <p>This method accepts non-ASCII digits, for example {@code "１９２.１６８.０.１"} (those are fullwidth

k{display:inline-block;height:2em;line-height:2em;position:relative;vertical-align:middle;width:2.5em}.fa-stack-1x,.fa-stack-2x{left:0;position:absolute;text-align:center;width:100%}.fa-stack-1x{line-height:inherit}.fa-stack-2x{font-size:2em}.fa-inverse{color:#fff}.fa-500px:before{content:"\f26e"}.fa-accessible-icon:before{content:"\f368"}.fa-accusoft:before{content:"\f369"}.fa-acquisitions-incorporated:before{content:"\f6af"}.fa-ad:before{content:"\f641"}.fa-address-book:before{content:"\f2b9"}...

   *
   * <p>This method is similar to {@link InetAddresses#forString(String)}, however, it requires that
   * IPv6 addresses are surrounded by square brackets.
   *
   * <p>This method is the inverse of {@link InetAddresses#toUriString(java.net.InetAddress)}.
   *
   * <p>This method accepts non-ASCII digits, for example {@code "１９２.１６８.０.１"} (those are fullwidth

k{display:inline-block;height:2em;line-height:2em;position:relative;vertical-align:middle;width:2.5em}.fa-stack-1x,.fa-stack-2x{left:0;position:absolute;text-align:center;width:100%}.fa-stack-1x{line-height:inherit}.fa-stack-2x{font-size:2em}.fa-inverse{color:#fff}.fa-500px:before{content:"\f26e"}.fa-accessible-icon:before{content:"\f368"}.fa-accusoft:before{content:"\f369"}.fa-acquisitions-incorporated:before{content:"\f6af"}.fa-ad:before{content:"\f641"}.fa-address-book:before{content:"\f2b9"}...

   * Copies each key-value mapping in {@code source} into {@code dest}, with its key and value
   * reversed.
   *
   * <p>If {@code source} is an {@link ImmutableMultimap}, consider using {@link
   * ImmutableMultimap#inverse} instead.
   *
   * @param source any multimap
   * @param dest the multimap to copy into; usually empty
   * @return {@code dest}
   */
  @CanIgnoreReturnValue

   * Copies each key-value mapping in {@code source} into {@code dest}, with its key and value
   * reversed.
   *
   * <p>If {@code source} is an {@link ImmutableMultimap}, consider using {@link
   * ImmutableMultimap#inverse} instead.
   *
   * @param source any multimap
   * @param dest the multimap to copy into; usually empty
   * @return {@code dest}
   */
  @CanIgnoreReturnValue