List<E> targetElements = new ArrayList<>();
      Iterator<E> iterator = newTargetIterator();
      for (int j = 0; j < i; j++) {
        targetElements.add(iterator.next());
      }
      iterator.forEachRemaining(targetElements::add);
      if (knownOrder == KnownOrder.KNOWN_ORDER) {
        assertEquals(expectedElements, targetElements);
      } else {
        assertEqualIgnoringOrder(expectedElements, targetElements);

      long size = spliterator.getExactSizeIfKnown();
      if (size > 0) { // known *and* nonempty
        ensureRoomFor(Ints.saturatedCast(size));
      }
      spliterator.forEachRemaining((IntConsumer) this::add);
      return this;
    }

    /**
     * Appends {@code values}, in order, to the end of the values the built {@link
     * ImmutableIntArray} will contain.
     */

      long size = spliterator.getExactSizeIfKnown();
      if (size > 0) { // known *and* nonempty
        ensureRoomFor(Ints.saturatedCast(size));
      }
      spliterator.forEachRemaining((DoubleConsumer) this::add);
      return this;
    }

    /**
     * Appends {@code values}, in order, to the end of the values the built {@link
     * ImmutableDoubleArray} will contain.
     */

          forEachEntry(action);
        }
      };
    }

    void forEachEntry(Consumer<? super Entry<K, V>> action) {
      entryIterator().forEachRemaining(action);
    }

    @Override
    public void clear() {
      Iterators.clear(entryIterator());
    }
  }

  /**