code: @Deprecated
    public static <K, V> ImmutableMap<K, V> copyWithKeysSortedBy(final Map<K, V> map,
        final Ordering<? super K> ordering) {
      return ImmutableSortedMap.copyOf(map, ordering);
    }
docs: Returns an immutable copy of the given map whose iteration order has keys sorted by the given
  {@link Ordering}. No map keys or values may be {@code null}.
  
  @deprecated Prefer {@link com.google.common.collect.ImmutableSortedMap#copyOf(Map, Comparator)}