*/
    SortedMap<K, V> createSubMap(SortedMap<K, V> map, K firstExclusive, K lastExclusive) {
      if (from == Bound.NO_BOUND && to == Bound.EXCLUSIVE) {
        return map.headMap(lastExclusive);
      } else if (from == Bound.INCLUSIVE && to == Bound.NO_BOUND) {
        return map.tailMap(firstInclusive);
      } else if (from == Bound.INCLUSIVE && to == Bound.EXCLUSIVE) {

    Set<Integer> treeValues = ImmutableSet.of(4, 0);
    assertEquals(ImmutableMap.of("google", googleValues, "tree", treeValues), asMap.tailMap("g"));
    assertEquals(ImmutableMap.of("google", googleValues, "foo", fooValues), asMap.headMap("h"));
    assertEquals(ImmutableMap.of("google", googleValues), asMap.subMap("g", "h"));
  }

  public void testTailSetClear() {
    TreeMultimap<String, Integer> multimap = TreeMultimap.create();