}
        scriptEngineMap.put(name.toLowerCase(Locale.ROOT), scriptEngine);
        scriptEngineMap.put(scriptEngine.getClass().getSimpleName().toLowerCase(Locale.ROOT), scriptEngine);
    }

    /**
     * Gets a script engine.
     * @param name The name of the script engine.
     * @return The script engine.
     */
    public ScriptEngine getScriptEngine(final String name) {
        if (name == null) {

    /**
     * Private constructor to prevent instantiation of this utility class.
     */
    private DocumentUtil() {
        // Utility class - no instantiation
    }

    /**
     * Gets a typed value from a document map with a default value.
     *
     * @param <T> the type to convert the value to
     * @param doc the document map to extract the value from

    }

    /**
     * Gets the path mapping list for a session.
     *
     * @param sessionId the session ID
     * @return the path mapping list
     */
    public List<PathMapping> getPathMappingList(final String sessionId) {
        if (sessionId == null) {
            return null;
        }
        return pathMappingMap.get(sessionId);
    }

    /**

                logger.debug("Exception in parsing BodyPart.", e);
            }
        }
    }

    /**
     * Gets the received date from a message by parsing the received headers.
     *
     * @param message the message to get the received date from
     * @return the received date or null if not found
     * @throws MessagingException if message access fails
     */

import org.opensearch.action.fieldcaps.FieldCapabilitiesResponse;
import org.opensearch.action.get.GetRequest;
import org.opensearch.action.get.GetRequestBuilder;
import org.opensearch.action.get.GetResponse;
import org.opensearch.action.get.MultiGetRequest;
import org.opensearch.action.get.MultiGetRequestBuilder;
import org.opensearch.action.get.MultiGetResponse;
import org.opensearch.action.index.IndexRequest;

        }

        /**
         * Gets the Blob object from GCS.
         * This method caches the response to avoid repeated calls.
         *
         * @return The Blob object
         * @throws IOException If an I/O error occurs
         */
        private Blob getBlob() throws IOException {
            if (blob == null) {
                blob = storage.get(BlobId.of(bucketName, objectName));
            }

                .sorted((doc1, doc2) -> Float.compare(toFloat(doc2.get(scoreField)), toFloat(doc1.get(scoreField))))
                .toList();

        // Calculate offset based on documents not in main searcher's top results
        int offset = 0;
        for (int i = 0; i < windowSize / 2 && i < fusedDocs.size(); i++) {
            if (!mainSearcherIdSet.contains(fusedDocs.get(i).get(idField))) {
                offset++;
            }

    }

    /**
     * Gets statistics for the multi-channel manager.
     *
     * @return channel statistics
     */
    public ChannelStatistics getStatistics() {
        return new ChannelStatistics(sessionChannels.size(),
                sessionChannels.values().stream().mapToInt(ChannelGroup::getChannelCount).sum(), totalRequests.get(),
                totalChannelsCreated.get());
    }

    /**

     */
    protected void registerBugReportItems(final RenderData data) {
        RenderDataUtil.register(data, "bugReportItems", getBugReportItems());
    }

    /**
     * Gets a list of environment variables as key-value pairs.
     *
     * @return list of environment variable items
     */
    public static List<Map<String, String>> getEnvItems() {

            }, Thread.currentThread().getName() + "-pdf");
            task.setDaemon(isDaemonThread);
            task.start();
            task.join(timeout);
            if (!done.get()) {
                for (int i = 0; i < 100 && !done.get(); i++) {
                    task.interrupt();
                    ThreadUtil.sleep(100L);
                }