return RegularImmutableBiMap.fromEntries(entryOf(k1, v1), entryOf(k2, v2));
  }

  /**
   * Returns an immutable map containing the given entries, in order.
   *
   * @throws IllegalArgumentException if duplicate keys or values are added
   */
  public static <K, V> ImmutableBiMap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3) {
    return RegularImmutableBiMap.fromEntries(entryOf(k1, v1), entryOf(k2, v2), entryOf(k3, v3));

      if (!kvMap.isPartialView()) {
        return kvMap;
      }
    }
    return fromEntries(comparator, sameComparator, map.entrySet());
  }

  private static <K extends Comparable<? super K>, V> ImmutableSortedMap<K, V> fromEntries(
      Entry<K, V>... entries) {
    return fromEntries(Ordering.natural(), false, entries, entries.length);
  }

  /**

      if (!kvMap.isPartialView()) {
        return kvMap;
      }
    }
    return fromEntries(comparator, sameComparator, map.entrySet());
  }

  private static <K extends Comparable<? super K>, V> ImmutableSortedMap<K, V> fromEntries(
      Entry<K, V>... entries) {
    return fromEntries(Ordering.natural(), false, entries, entries.length);
  }

  /**

    return RegularImmutableMap.fromEntries(entryOf(k1, v1), entryOf(k2, v2));
  }

  /**
   * Returns an immutable map containing the given entries, in order.
   *
   * @throws IllegalArgumentException if duplicate keys are provided
   */
  public static <K, V> ImmutableMap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3) {
    return RegularImmutableMap.fromEntries(entryOf(k1, v1), entryOf(k2, v2), entryOf(k3, v3));

  @GwtIncompatible // SerializableTester
  public void testKeySetIsSerializable_regularImmutableMap() {
    class NonSerializableClass {}

    Map<String, NonSerializableClass> map =
        RegularImmutableMap.fromEntries(ImmutableMap.entryOf("one", new NonSerializableClass()));
    Set<String> set = map.keySet();

    LenientSerializableTester.reserializeAndAssertLenient(set);
  }

  @J2ktIncompatible

  @VisibleForTesting final transient Entry<K, V>[] entries;
  private final transient int mask;
  private final transient int hashCode;

  static <K, V> ImmutableBiMap<K, V> fromEntries(Entry<K, V>... entries) {
    return fromEntryArray(entries.length, entries);
  }

  static <K, V> ImmutableBiMap<K, V> fromEntryArray(int n, @Nullable Entry<K, V>[] entryArray) {

  @CheckForNull private final transient @Nullable ImmutableMapEntry<K, V>[] table;
  // 'and' with an int to get a table index
  private final transient int mask;

  static <K, V> ImmutableMap<K, V> fromEntries(Entry<K, V>... entries) {
    return fromEntryArray(entries.length, entries, /* throwIfDuplicateKeys= */ true);
  }

  /**
   * Creates an ImmutableMap from the first n entries in entryArray. This implementation may replace