* @param history the conversation history
     */
    protected void addIntentHistory(final LlmChatRequest request, final List<LlmMessage> history) {
        if (history == null || history.isEmpty()) {
            return;
        }
        final int maxMessages = getIntentHistoryMaxMessages();
        final int maxChars = getIntentHistoryMaxChars();

        int remaining = maxChars;

    return pickInstance(Arrays.asList(instances), defaultValue);
  }

  private <T> T pickInstance(Collection<T> instances, T defaultValue) {
    if (instances.isEmpty()) {
      return defaultValue;
    }
    // generateInt() is 1-based.
    return Iterables.get(instances, (generateInt() - 1) % instances.size());
  }

    } else {
      throw new OutOfMemoryError("input is too large to fit in a byte array");
    }
  }

  private static byte[] combineBuffers(Queue<byte[]> bufs, int totalLen) {
    if (bufs.isEmpty()) {
      return new byte[0];
    }
    byte[] result = bufs.remove();
    if (result.length == totalLen) {
      return result;
    }
    int remaining = totalLen - result.length;

        }
        // settings
        userDefinedLocalRepo = context.effectiveSettings.getLocalRepository();
        if (userDefinedLocalRepo != null && !userDefinedLocalRepo.isEmpty()) {
            return context.userDirectory.resolve(userDefinedLocalRepo).normalize();
        }
        // defaults
        return context.userDirectory

       */
      @SuppressWarnings("unchecked")
      ImmutableSet<E> result = (ImmutableSet<E>) untypedResult;
      return result;
    }

    if (elements.isEmpty()) {
      // We avoid allocating anything.
      return of();
    }
    // Collection<E>.toArray() is required to contain only E instances, and all we do is read them.

    public String getManagementKey() {
        if (managementKey == null) {
            managementKey = (getGroupId() + ":" + getArtifactId() + ":" + getType()
                    + (getClassifier() != null && !getClassifier().isEmpty() ? ":" + getClassifier() : "")).intern();
        }
        return managementKey;
    }
            ]]>
          </code>
        </codeSegment>
        <codeSegment>

    Comparator<? super E> comparator = SortedIterables.comparator(sortedSet);
    ImmutableList<E> list = ImmutableList.copyOf(sortedSet);
    if (list.isEmpty()) {
      return emptySet(comparator);
    } else {
      return new RegularImmutableSortedSet<>(list, comparator);
    }
  }

  /**

        .isTrue();
    assertWithMessage("closingExecutor was shut down")
        .that(shutdownAndAwaitTermination(closingExecutor, 10, SECONDS))
        .isTrue();
    if (!failures.isEmpty()) {
      StringWriter message = new StringWriter();
      PrintWriter writer = new PrintWriter(message);
      writer.println("Expected no failures, but found:");
      for (AssertionError failure : failures) {

      }
    }
    OptionalState state = new OptionalState();

    Deque<Spliterator<T>> splits = new ArrayDeque<>();
    splits.addLast(stream.spliterator());

    while (!splits.isEmpty()) {
      Spliterator<T> spliterator = splits.removeLast();

      if (spliterator.getExactSizeIfKnown() == 0) {
        continue; // drop this split
      }

  }

  private static <T extends @Nullable Object> List<T> shuffledCopy(List<T> in, Random random) {
    List<T> mutable = new ArrayList<>(in);
    List<T> out = new ArrayList<>();
    while (!mutable.isEmpty()) {
      out.add(mutable.remove(random.nextInt(mutable.size())));
    }
    return out;
  }