// Initial empty map
        Map<String, Object> map1 = new HashMap<>();
        event.setSourceMap(map1);
        assertEquals(0, event.toSource().size());

        // Add elements to the map
        map1.put("key1", "value1");
        assertEquals(1, event.toSource().size());

        // Replace the map
        Map<String, Object> map2 = new HashMap<>();
        map2.put("key2", "value2");

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    this.expectedValuesPerKey = expectedValuesPerKey;
  }

  private ArrayListMultimap(Multimap<? extends K, ? extends V> multimap) {
    this(
        multimap.keySet().size(),
        (multimap instanceof ArrayListMultimap)
            ? ((ArrayListMultimap<?, ?>) multimap).expectedValuesPerKey
            : DEFAULT_VALUES_PER_KEY);
    putAll(multimap);
  }

  /**

    /**
     * Constructor that may alter behaviour of this listener.
     *
     * @param delegate The delegate that should run on single thread.
     * @param queueSize The event queue size (default {@code 1024}).
     * @param batchMaxSize The maximum batch size delegate should receive (default {@code 500}).
     * @param blockOnLastEvent Should this listener block on last transfer end (completed or corrupted) block? (default {@code true}).
     */

    /** The key of the configuration. e.g. 1000 */
    String PAGE_USER_MAX_FETCH_SIZE = "page.user.max.fetch.size";

    /** The key of the configuration. e.g. 1000 */
    String PAGE_ROLE_MAX_FETCH_SIZE = "page.role.max.fetch.size";

    /** The key of the configuration. e.g. 1000 */
    String PAGE_GROUP_MAX_FETCH_SIZE = "page.group.max.fetch.size";

        // Given
        trans2GetDfsReferral = new Trans2GetDfsReferral(mockConfig, "test");

        // Test with minimum size buffer
        byte[] smallBuffer = new byte[2];
        assertEquals(2, trans2GetDfsReferral.writeSetupWireFormat(smallBuffer, 0));

        // Test with exact size buffer
        byte[] exactBuffer = new byte[2];
        assertEquals(2, trans2GetDfsReferral.writeSetupWireFormat(exactBuffer, 0));

pkg go/types, type VarKind uint8 #70250
pkg hash, type Cloner interface { BlockSize, Clone, Reset, Size, Sum, Write } #69521
pkg hash, type Cloner interface, BlockSize() int #69521
pkg hash, type Cloner interface, Clone() (Cloner, error) #69521
pkg hash, type Cloner interface, Reset() #69521
pkg hash, type Cloner interface, Size() int #69521
pkg hash, type Cloner interface, Sum([]uint8) []uint8 #69521

 */
final class SingletonImmutableSet<E> extends ImmutableSet<E> {
  private final E element;

  SingletonImmutableSet(E element) {
    this.element = checkNotNull(element);
  }

  @Override
  public int size() {
    return 1;
  }

  @Override
  public UnmodifiableIterator<E> iterator() {
    return Iterators.singletonIterator(element);
  }

  @Override
  public boolean contains(@Nullable Object object) {

      return map.containsKey(object);
    }

    @Override
    boolean isPartialView() {
      return true;
    }

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

    // redeclare to help optimizers with b/310253115
    @SuppressWarnings("RedundantOverride")
    @Override
    @J2ktIncompatible
    @GwtIncompatible

                : Sets.union(inEdgeMap.keySet(), outEdgeMap.keySet());
        return Iterators.unmodifiableIterator(incidentEdges.iterator());
      }

      @Override
      public int size() {
        return IntMath.saturatedAdd(inEdgeMap.size(), outEdgeMap.size() - selfLoopCount);
      }

      @Override
      public boolean contains(@Nullable Object obj) {
        return inEdgeMap.containsKey(obj) || outEdgeMap.containsKey(obj);
      }