}

    @Override
    public boolean isEmpty() {
      return standardIsEmpty();
    }

    @Override
    public Iterator<E> iterator() {
      return standardIterator();
    }

    @Override
    public boolean remove(@Nullable Object object) {
      return standardRemove(object);
    }

    @Override
    public boolean removeAll(Collection<?> collection) {

    }

    @Override
    public boolean isEmpty() {
      return standardIsEmpty();
    }

    @Override
    public Iterator<E> iterator() {
      return standardIterator();
    }

    @Override
    public boolean remove(@Nullable Object object) {
      return standardRemove(object);
    }

    @Override
    public boolean removeAll(Collection<?> collection) {

   * you override {@link #listIterator()}, you may wish to override {@link #iterator} to forward to
   * this implementation.
   *
   * @since 7.0
   */
  protected Iterator<E> standardIterator() {
    return listIterator();
  }

  /**
   * A sensible default implementation of {@link #listIterator()}, in terms of {@link

   * #remove(Object)}. If you override either of these methods, you may wish to override {@link
   * #iterator} to forward to this implementation.
   *
   * @since 7.0
   */
  protected Iterator<E> standardIterator() {
    return Multisets.iteratorImpl(this);
  }

  /**
   * A sensible, albeit inefficient, definition of {@link #size} in terms of {@link #entrySet}. If