final String[] oldLabels = DocumentUtil.getValue(dataMap, fessConfig.getIndexFieldLabel(), String[].class);
            StreamUtil.stream(oldLabels).of(stream -> stream.forEach(newLabelSet::add));
            matchedLabelSet.stream().forEach(newLabelSet::add);
            dataMap.put(fessConfig.getIndexFieldLabel(), newLabelSet.toArray(new String[newLabelSet.size()]));
        }

        if (!dataMap.containsKey(fessConfig.getIndexFieldDocId())) {

            }
        }
        return valueArray;
    }

    /**
     * Add a value.
     * @param key Key
     * @param value Value
     */
    public void add(final String key, final Object value) {
        if (logger.isDebugEnabled()) {
            logger.debug("Add analyzer settings. {} key: {} value: {}", arraySettingsIndexName, key, value);
        }

    //               = (x_n - X_n) (y_n - Y_{n-1})
    xStats.add(x);
    if (isFinite(x) && isFinite(y)) {
      if (xStats.count() > 1) {
        sumOfProductsOfDeltas += (x - xStats.mean()) * (y - yStats.mean());
      }
    } else {
      sumOfProductsOfDeltas = NaN;
    }
    yStats.add(y);
  }

  /**
   * Adds the given statistics to the dataset, as if the individual values used to compute the

        }
        return value;
    }

    /**
     * Adds an attribute to the factory.
     * @param name The name of the attribute.
     * @param value The value of the attribute.
     */
    public void addAttribute(final String name, final Object value) {
        attributeMap.put(name, value);
    }

    /**
     * Adds a feature to the factory.
     * @param key The key of the feature.

        } else {
            searchLog.setVirtualHost(StringUtil.EMPTY);
        }

        addDocumentsInResponse(queryResponseList, searchLog);

        searchLogQueue.add(searchLog);
    }

    /**
     * Adds documents in the response to the search log.
     *
     * @param queryResponseList The list of query responses.
     * @param searchLog The search log.
     */

		ent.Value = value
		ent.ExpiresAt = now.Add(c.ttl)
		c.addToBucket(ent)
		return false
	}

	// Add new item
	ent := c.evictList.PushFrontExpirable(key, value, now.Add(c.ttl))
	c.items[key] = ent
	c.addToBucket(ent) // adds the entry to the appropriate bucket and sets entry.expireBucket

	evict := c.size > 0 && c.evictList.Length() > c.size

        }
        return convertedUrl;
    }

    /**
     * Adds a conversion rule.
     *
     * @param target The target string.
     * @param replacement The replacement string.
     */
    public void add(final String target, final String replacement) {
        if (target == null || replacement == null) {

pkg net/netip, method (Addr) MarshalBinary() ([]uint8, error)
pkg net/netip, method (Addr) MarshalText() ([]uint8, error)
pkg net/netip, method (Addr) Next() Addr
pkg net/netip, method (Addr) Prefix(int) (Prefix, error)
pkg net/netip, method (Addr) Prev() Addr
pkg net/netip, method (Addr) String() string
pkg net/netip, method (Addr) StringExpanded() string
pkg net/netip, method (Addr) Unmap() Addr

     */
    public SitemapSet() {
        // Default constructor
    }

    /**
     * Adds a sitemap to this set.
     * @param sitemap the sitemap to add
     */
    public void addSitemap(final Sitemap sitemap) {
        sitemapList.add(sitemap);
    }

    /**
     * Removes a sitemap from this set.
     * @param sitemap the sitemap to remove
     */

  }

  public static <T> EquivalenceTester<T> of(Equivalence<? super T> equivalence) {
    return new EquivalenceTester<>(equivalence);
  }

  /**
   * Adds a group of objects that are supposed to be equivalent to each other and not equivalent to
   * objects in any other equivalence group added to this tester.
   */
  @CanIgnoreReturnValue