*
   * @since 22.0
   */
  void putCoalescing(Range<K> range, V value);

  /** Puts all the associations from {@code rangeMap} into this range map (optional operation). */
  void putAll(RangeMap<K, ? extends V> rangeMap);

  /** Removes all associations from this range map (optional operation). */
  void clear();

  /**

  }

  @SuppressWarnings("unchecked")
  public static <K extends Comparable<?>, V> ImmutableRangeMap<K, V> copyOf(
      RangeMap<K, ? extends V> rangeMap) {
    if (rangeMap instanceof ImmutableRangeMap) {
      return (ImmutableRangeMap<K, V>) rangeMap;
    }
    Map<Range<K>, ? extends V> map = rangeMap.asMapOfRanges();
    ImmutableList.Builder<Range<K>> rangesBuilder = new ImmutableList.Builder<>(map.size());

  }

  public void testPutCoalescingSubmapEmpty() {
    RangeMap<Integer, Integer> rangeMap = TreeRangeMap.create();
    rangeMap.put(Range.closedOpen(0, 1), 1);
    rangeMap.put(Range.closedOpen(1, 2), 1);
    assertEquals(
        ImmutableMap.of(Range.closedOpen(0, 1), 1, Range.closedOpen(1, 2), 1),
        rangeMap.asMapOfRanges());

   *
   * @since 33.4.0
   */
  @SuppressWarnings("unchecked")
  public static <K extends Comparable<?>, V> TreeRangeMap<K, V> copyOf(
      RangeMap<K, ? extends V> rangeMap) {
    if (rangeMap instanceof TreeRangeMap) {
      NavigableMap<Cut<K>, RangeMapEntry<K, V>> entriesByLowerBound = Maps.newTreeMap();
      entriesByLowerBound.putAll(((TreeRangeMap<K, V>) rangeMap).entriesByLowerBound);

            }

            assertEquals(expectedValue, rangeMap.get(i));
          }
        }
      }
    }
  }

  public void testSpanEmpty() {
    assertThrows(NoSuchElementException.class, () -> ImmutableRangeMap.of().span());
  }

  public void testSpanSingleRange() {
    for (Range<Integer> range : RANGES) {
      RangeMap<Integer, Integer> rangemap =

  }

  @SuppressWarnings("unchecked")
  public static <K extends Comparable<?>, V> ImmutableRangeMap<K, V> copyOf(
      RangeMap<K, ? extends V> rangeMap) {
    if (rangeMap instanceof ImmutableRangeMap) {
      return (ImmutableRangeMap<K, V>) rangeMap;
    }
    Map<Range<K>, ? extends V> map = rangeMap.asMapOfRanges();
    ImmutableList.Builder<Range<K>> rangesBuilder = new ImmutableList.Builder<>(map.size());

 *   <dd>An extension of {@link java.util.Map} that associates a raw type with an instance of that
 *       type.
 * </dl>
 *
 * <h2>Ranges</h2>
 *
 * <ul>
 *   <li>{@link Range}
 *   <li>{@link RangeMap}
 *   <li>{@link RangeSet}
 *   <li>{@link DiscreteDomain}
 *   <li>{@link ContiguousSet}
 * </ul>
 *
 * <h2>Classes of static utility methods</h2>
 *
 * <ul>
 *   <li>{@link Collections2}

 *   <dd>An extension of {@link java.util.Map} that associates a raw type with an instance of that
 *       type.
 * </dl>
 *
 * <h2>Ranges</h2>
 *
 * <ul>
 *   <li>{@link Range}
 *   <li>{@link RangeMap}
 *   <li>{@link RangeSet}
 *   <li>{@link DiscreteDomain}
 *   <li>{@link ContiguousSet}
 * </ul>
 *
 * <h2>Classes of static utility methods</h2>
 *
 * <ul>
 *   <li>{@link Collections2}