* its entry set handles modifications.
   *
   * @return a set of entries representing the data of this multiset
   */
  Set<Entry<E>> entrySet();

  /**
   * An unmodifiable element-count pair for a multiset. The {@link Multiset#entrySet} method returns
   * a view of the multiset whose elements are of this class. A multiset implementation may return

   * its entry set handles modifications.
   *
   * @return a set of entries representing the data of this multiset
   */
  Set<Entry<E>> entrySet();

  /**
   * An unmodifiable element-count pair for a multiset. The {@link Multiset#entrySet} method returns
   * a view of the multiset whose elements are of this class. A multiset implementation may return

            return iterable.iterator();
          }
        };
  }

  /**
   * Returns a fluent iterable containing {@code elements} in the specified order.
   *
   * <p>The returned iterable is an unmodifiable view of the input array.
   *
   * <p><b>{@code Stream} equivalent:</b> {@link java.util.stream.Stream#of(Object[])
   * Stream.of(T...)}.
   *
   * @since 20.0 (since 18.0 as an overload of {@code of})
   */

            return iterable.iterator();
          }
        };
  }

  /**
   * Returns a fluent iterable containing {@code elements} in the specified order.
   *
   * <p>The returned iterable is an unmodifiable view of the input array.
   *
   * <p><b>{@code Stream} equivalent:</b> {@link java.util.stream.Stream#of(Object[])
   * Stream.of(T...)}.
   *
   * @since 20.0 (since 18.0 as an overload of {@code of})
   */

    this.map = map;
    totalSize = 0;
    for (Collection<V> values : map.values()) {
      checkArgument(!values.isEmpty());
      totalSize += values.size();
    }
  }

  /**
   * Creates an unmodifiable, empty collection of values.
   *
   * <p>This is used in {@link #removeAll} on an empty key.
   */
  Collection<V> createUnmodifiableEmptyCollection() {
    return unmodifiableCollectionSubclass(createCollection());