for (K k : sampleKeys()) {
      resetContainer();

      List<V> expectedValues = copyToList(multimap().get(k));

      assertTrue(multimap().putAll(k, values));
      expectedValues.addAll(values);

      assertGet(k, expectedValues);
    }
  }

    for (K k : sampleKeys()) {
      resetContainer();

      Set<V> expectedValues = copyToSet(multimap().get(k));

      multimap().putAll(k, valuesToPut);
      expectedValues.addAll(valuesToPut);

      assertGet(k, expectedValues);
    }
  }

            return parent.containsAll(c);
        }

        public boolean addAll(final Collection<? extends E> c) {
            return parent.addAll(c);
        }

        public boolean addAll(final int index, final Collection<? extends E> c) {
            return parent.addAll(index, c);
        }

        public boolean removeAll(final Collection<?> c) {

    StatsAccumulator accumulator = new StatsAccumulator();
    accumulator.addAll(MANY_VALUES);
    Stats stats = accumulator.snapshot();
    accumulator.add(999.999); // should do nothing to the snapshot
    return stats;
  }

  private static Stats buildLongManyValuesStatsSnapshot() {
    StatsAccumulator accumulator = new StatsAccumulator();
    accumulator.addAll(LONG_MANY_VALUES);
    return accumulator.snapshot();
  }

  @SuppressWarnings("rawtypes") // class literals
  @Override
  protected List<Class<? extends AbstractTester>> getTesters() {
    List<Class<? extends AbstractTester>> testers = copyToList(super.getTesters());
    testers.addAll(ConcurrentMapTestSuiteBuilder.TESTERS);
    return testers;
  }

  @Override
  NavigableMapTestSuiteBuilder<K, V> subSuiteUsing(TestSortedMapGenerator<K, V> generator) {
    return using(generator);
  }

    }

    // The following methods are provided for better performance.

    @Override
    public boolean addAll(Collection<? extends V> collection) {
      if (collection.isEmpty()) {
        return false;
      }
      int oldSize = size(); // calls refreshIfEmpty
      boolean changed = delegate.addAll(collection);
      if (changed) {
        int newSize = delegate.size();
        totalSize += newSize - oldSize;

      }

      private List<Multiset.Entry<E>> snapshot() {
        List<Multiset.Entry<E>> list = newArrayListWithExpectedSize(size());
        // not Iterables.addAll(list, this), because that'll forward back here
        Iterators.addAll(list, iterator());
        return list;
      }

      @Override
      public boolean remove(Object object) {
        if (object instanceof Multiset.Entry) {

      }
    },
    BUILDER_ADD_ALL_COLLECTION {
      @Override
      public ImmutableMultiset<Object> create(List<?> keys) {
        ImmutableMultiset.Builder<Object> builder = ImmutableMultiset.builder();
        builder.addAll(keys);
        return builder.build();
      }
    };

    @CanIgnoreReturnValue
    @Override
    public abstract ImmutableMultiset<Object> create(List<?> keys);
  }

     */
    @Override
    @CanIgnoreReturnValue
    public Builder<E> addAll(Iterable<? extends E> elements) {
      super.addAll(elements);
      return this;
    }

    @Override
    @CanIgnoreReturnValue
    public Builder<E> addAll(Iterator<? extends E> elements) {
      super.addAll(elements);
      return this;
    }

    @CanIgnoreReturnValue

      Collection<? extends V> valueCollection = (Collection<? extends V>) values;
      return !valueCollection.isEmpty() && get(key).addAll(valueCollection);
    } else {
      Iterator<? extends V> valueItr = values.iterator();
      return valueItr.hasNext() && Iterators.addAll(get(key), valueItr);
    }
  }

  @CanIgnoreReturnValue
  @Override
  public boolean putAll(Multimap<? extends K, ? extends V> multimap) {