@Override
      @ParametricNullness
      E result(int entryIndex) {
        return backingMap.getKey(entryIndex);
      }
    };
  }

  @Override
  final Iterator<Entry<E>> entryIterator() {
    return new Itr<Entry<E>>() {
      @Override
      Entry<E> result(int entryIndex) {
        return backingMap.getEntry(entryIndex);
      }
    };
  }

    }
    return (node == header || !range.contains(node.getElement())) ? null : node;
  }

  @Override
  Iterator<E> elementIterator() {
    return Multisets.elementIterator(entryIterator());
  }

  @Override
  Iterator<Entry<E>> entryIterator() {
    return new Iterator<Entry<E>>() {
      @Nullable AvlNode<E> current = firstNode();
      @Nullable Entry<E> prevEntry;

      @Override

    }
    return (node == header || !range.contains(node.getElement())) ? null : node;
  }

  @Override
  Iterator<E> elementIterator() {
    return Multisets.elementIterator(entryIterator());
  }

  @Override
  Iterator<Entry<E>> entryIterator() {
    return new Iterator<Entry<E>>() {
      @Nullable AvlNode<E> current = firstNode();
      @Nullable Entry<E> prevEntry;

      @Override

    EntryCollection(ImmutableMultimap<K, V> multimap) {
      this.multimap = multimap;
    }

    @Override
    public UnmodifiableIterator<Entry<K, V>> iterator() {
      return multimap.entryIterator();
    }

    @Override
    boolean isPartialView() {
      return multimap.isPartialView();
    }

    @Override
    public int size() {
      return multimap.size();
    }

    EntryCollection(ImmutableMultimap<K, V> multimap) {
      this.multimap = multimap;
    }

    @Override
    public UnmodifiableIterator<Entry<K, V>> iterator() {
      return multimap.entryIterator();
    }

    @Override
    boolean isPartialView() {
      return multimap.isPartialView();
    }

    @Override
    public int size() {
      return multimap.size();
    }

  @Override
  int distinctElements() {
    return countMap.size();
  }

  @Override
  public boolean isEmpty() {
    return countMap.isEmpty();
  }

  @Override
  Iterator<Entry<E>> entryIterator() {
    // AbstractIterator makes this fairly clean, but it doesn't support remove(). To support
    // remove(), we create an AbstractIterator, and then use ForwardingIterator to delegate to it.