keySet.asList().get(index), valueList.get(index));
          }

          @Override
          public Spliterator<Entry<K, V>> spliterator() {
            return CollectSpliterators.indexed(
                size(), ImmutableSet.SPLITERATOR_CHARACTERISTICS, this::get);
          }

          @Override
          ImmutableCollection<Entry<K, V>> delegateCollection() {

              return backingEntry.getValue().size();
            }
          };
        }
      };
    }

    @Override
    public Spliterator<K> spliterator() {
      return CollectSpliterators.map(multimap.entries().spliterator(), 0, Map.Entry::getKey);
    }

    @Override
    public void forEach(Consumer<? super K> consumer) {
      checkNotNull(consumer);