@Override
  public Map<K, Collection<V>> asMap() {
    Map<K, Collection<V>> result = asMap;
    return (result == null) ? asMap = createAsMap() : result;
  }

  abstract Map<K, Collection<V>> createAsMap();

  // Comparison and hashing

  @Override
  public boolean equals(@Nullable Object object) {
    return Multimaps.equalsImpl(this, object);
  }

  /**

  /** Returns a live, read-only view of the map backing this {@code AtomicLongMap}. */
  public Map<K, Long> asMap() {
    Map<K, Long> result = asMap;
    return (result == null) ? asMap = createAsMap() : result;
  }

  private Map<K, Long> createAsMap() {
    return Collections.unmodifiableMap(map);
  }

  /** Returns true if this map contains a mapping for the specified key. */
  public boolean containsKey(Object key) {

        }
      }
      return false;
    }
  }

  @Override
  Collection<V> createValues() {
    return new FilteredMultimapValues<>(this);
  }

  @Override
  Map<K, Collection<V>> createAsMap() {
    return Maps.filterKeys(unfiltered.asMap(), keyPredicate);
  }

  @Override
  Multiset<K> createKeys() {
    return Multisets.filter(unfiltered.keys(), keyPredicate);
  }

        }
      }
      return false;
    }
  }

  @Override
  Collection<V> createValues() {
    return new FilteredMultimapValues<>(this);
  }

  @Override
  Map<K, Collection<V>> createAsMap() {
    return Maps.filterKeys(unfiltered.asMap(), keyPredicate);
  }

  @Override
  Multiset<K> createKeys() {
    return Multisets.filter(unfiltered.keys(), keyPredicate);
  }

  }

  @Override
  Iterator<Entry<K, V>> entryIterator() {
    throw new AssertionError("should never be called");
  }

  @Override
  Map<K, Collection<V>> createAsMap() {
    return new AsMap();
  }

  @Override
  Set<K> createKeySet() {
    return asMap().keySet();
  }

  boolean removeEntriesIf(Predicate<? super Entry<K, Collection<V>>> predicate) {

  }

  @Override
  Iterator<Entry<K, V>> entryIterator() {
    throw new AssertionError("should never be called");
  }

  @Override
  Map<K, Collection<V>> createAsMap() {
    return new AsMap();
  }

  @Override
  Set<K> createKeySet() {
    return asMap().keySet();
  }

  boolean removeEntriesIf(Predicate<? super Entry<K, Collection<V>>> predicate) {

      this.factory = checkNotNull(factory);
    }

    @Override
    Set<K> createKeySet() {
      return createMaybeNavigableKeySet();
    }

    @Override
    Map<K, Collection<V>> createAsMap() {
      return createMaybeNavigableAsMap();
    }

    @Override
    protected Collection<V> createCollection() {
      return factory.get();
    }

    @Override

      this.factory = checkNotNull(factory);
    }

    @Override
    Set<K> createKeySet() {
      return createMaybeNavigableKeySet();
    }

    @Override
    Map<K, Collection<V>> createAsMap() {
      return createMaybeNavigableAsMap();
    }

    @Override
    protected Collection<V> createCollection() {
      return factory.get();
    }

    @Override

    }
    return new EntriesImpl();
  }

  @Override
  Iterator<Entry<K, V>> entryIterator() {
    throw new AssertionError("should never be called");
  }

  @Override
  Map<K, Collection<V>> createAsMap() {
    return new Multimaps.AsMap<>(this);
  }

  /**
   * @serialData the number of distinct keys, and then for each distinct key: the first key, the

   */
  @Override
  @SuppressWarnings("unchecked") // a widening cast
  public ImmutableMap<K, Collection<V>> asMap() {
    return (ImmutableMap) map;
  }

  @Override
  Map<K, Collection<V>> createAsMap() {
    throw new AssertionError("should never be called");
  }

  /** Returns an immutable collection of all key-value pairs in the multimap. */
  @Override
  public ImmutableCollection<Entry<K, V>> entries() {