if (bitsField != null && !bitsField.getValues().isEmpty()) {
                                    docMap.put(fessConfig.getQueryCollapseInnerHitsName() + "_hash", bitsField.getValues().get(0));
                                }
                                docMap.put(fessConfig.getQueryCollapseInnerHitsName(), StreamUtil.stream(innerSearchHits.getHits())

    }

    /**
     * Encodes a similar document hash using GZIP compression and Base64 encoding.
     * This reduces storage space for hash values while maintaining uniqueness.
     *
     * @param hash the hash string to encode
     * @return the encoded hash string with prefix, or the original hash if encoding fails
     */
    public String encodeSimilarDocHash(final String hash) {

            }
        }

        final String targetUrl = pathMappingHelper.replaceUrl(url);

        String hash;
        if (StringUtil.isNotBlank(form.hash)) {
            final String value = URLUtil.decode(form.hash, Constants.UTF_8);
            if (targetUrl.indexOf('#') == -1) {
                final StringBuilder buf = new StringBuilder(value.length() + 100);

    //                                                                      ==============
    @Override
    public String toString() {
        final String hash = Integer.toHexString(hashCode());
        return DfTypeUtil.toClassTitle(this) + ":{acceptCookieLocale=" + isAcceptCookieLocale() + "}@" + hash;
    }

            Arrays.sort(newInputs);
        }
    }

    /**
     * Calculates the hash code for this CharMappingItem based on inputs and output.
     *
     * @return the hash code value for this object
     */
    @Override
    public int hashCode() {
        return Objects.hash(Arrays.hashCode(inputs), output);
    }

    /**

        // Same inputs and output should have same hash code
        assertEquals(item1.hashCode(), item2.hashCode());

        // Different inputs should have different hash code
        assertNotSame(item1.hashCode(), item3.hashCode());

        // Same inputs but different output should have different hash code
        assertNotSame(item1.hashCode(), item4.hashCode());
    }

    @Test

     */
    @Size(max = 10000)
    @Required
    public String rt;

    /**
     * Hash value for security or validation purposes.
     * This field is optional and used for request verification.
     */
    public String hash;

    /**
     * Query identifier associated with the search that led to this document access.
     * This is required for tracking and analytics purposes.

     * Encodes special characters using URL encoding or Base64 encoding as needed,
     * then applies a message digest algorithm to create a unique hash.
     *
     * @param urlId the URL ID string to generate a hash for
     * @return a hashed ID string generated from the input URL ID
     */
    protected String generateId(final String urlId) {

        try {
            final MessageDigest md = MessageDigest.getInstance("SHA-256");
            final byte[] hash = md.digest(input.getBytes(StandardCharsets.UTF_8));
            final StringBuilder sb = new StringBuilder();
            for (final byte b : hash) {
                sb.append(String.format("%02x", b));
            }
            return sb.toString();

     */
    public boolean isDeleted() {
        return isUpdated() && newInputs.length == 0;
    }

    @Override
    public int hashCode() {
        return Objects.hash(Arrays.hashCode(inputs), Arrays.hashCode(outputs));
    }

    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }