// causes dependency resolution or evaluation of the attributes of
                    // the same AttributeContainer
                    if (value != null) {
                        doInsertion(Cast.uncheckedNonnullCast(key), value.get());
                    }
                });
            } finally {
                realizingAttributes = false;
            }
        }
    }

        @Override
        public T get(int index) {
            if (index >= size) {
                throw new IndexOutOfBoundsException("Index: " + index + ", Size: " + size);
            }
            return Cast.uncheckedNonnullCast(asArray[index]);
        }

        @Override
        public boolean contains(Object o) {
            return asSet.contains(o);
        }

        @Override