import java.util.Collection;
import java.util.Map;
import java.util.Map.Entry;
import java.util.NoSuchElementException;
import java.util.function.BiFunction;
import org.jspecify.annotations.Nullable;

/**
 * A mapping from disjoint nonempty ranges to non-null values. Queries look up the value associated
 * with the range (if any) that contains a specified key.
 *
 * <p>In contrast to {@link RangeSet}, no "coalescing" is done of {@linkplain

    # o dbfluteSystemFinalTimeZone: (NotRequired - Default null)
    #  The ID of time-zone for DBFlute system.
    #  basically for e.g. DisplaySql, Date conversion, LocalDate mapping and so on...
    #
    #; dbfluteSystemFinalTimeZone = GMT
    # - - - - - - - - - -/
}

    return new TreeMultimap<>(checkNotNull(keyComparator), checkNotNull(valueComparator));
  }

  /**
   * Constructs a {@code TreeMultimap}, ordered by the natural ordering of its keys and values, with
   * the same mappings as the specified multimap.
   *
   * @param multimap the multimap whose contents are copied to this multimap
   */
  @SuppressWarnings("rawtypes") // https://github.com/google/guava/issues/989

     */
    public static PopularWordHelper getPopularWordHelper() {
        return getComponent(POPULAR_WORD_HELPER);
    }

    /**
     * Gets the path mapping helper component.
     * @return The path mapping helper.
     */
    public static PathMappingHelper getPathMappingHelper() {
        return getComponent(PATH_MAPPING_HELPER);
    }

    /**

    public static final String LABELS_notification_to = "{labels.notification_to}";

    /** The key of the message: Path Mapping */
    public static final String LABELS_pathmap_configuration = "{labels.pathmap_configuration}";

    /** The key of the message: Path Mapping */
    public static final String LABELS_pathmap_title_details = "{labels.pathmap_title_details}";

    /** The key of the message: Disabled */

  }

  @Override
  boolean isPartialView() {
    return keySet.isPartialView() || valueList.isPartialView();
  }

  /** Returns an immutable set of the mappings in this map, sorted by the key ordering. */
  @Override
  public ImmutableSet<Entry<K, V>> entrySet() {
    return super.entrySet();
  }

  @Override
  ImmutableSet<Entry<K, V>> createEntrySet() {

   */
  @SuppressWarnings("unchecked")
  public static <K extends Comparable<?>, V> ImmutableRangeMap<K, V> of() {
    return (ImmutableRangeMap<K, V>) EMPTY;
  }

  /** Returns an immutable range map mapping a single range to a single value. */
  public static <K extends Comparable<?>, V> ImmutableRangeMap<K, V> of(Range<K> range, V value) {
    return new ImmutableRangeMap<>(ImmutableList.of(range), ImmutableList.of(value));
  }

/**
 * will also strip BOM from the source
 */
@Throws(IOException::class)
internal fun BufferedSource.readBomAsCharset(default: Charset): Charset =
  when (select(UNICODE_BOMS)) {
    // a mapping from the index of encoding methods in UNICODE_BOMS to its corresponding encoding method
    0 -> UTF_8
    1 -> UTF_16BE
    2 -> UTF_32LE
    3 -> UTF_16LE
    4 -> UTF_32BE
    -1 -> default

        if (allowsParallelEdges()) {
          return super.edges(); // Defer to AbstractGraph implementation.
        }

        // Optimized implementation assumes no parallel edges (1:1 edge to EndpointPair mapping).
        return new AbstractSet<EndpointPair<N>>() {
          @Override
          public Iterator<EndpointPair<N>> iterator() {
            return Iterators.transform(

   */

  private transient Map<K, Collection<V>> map;
  private transient int totalSize;

  /**
   * Creates a new multimap that uses the provided map.
   *
   * @param map place to store the mapping from each key to its corresponding values
   * @throws IllegalArgumentException if {@code map} is not empty
   */
  protected AbstractMapBasedMultimap(Map<K, Collection<V>> map) {
    checkArgument(map.isEmpty());