}

  /**
   * Accepts a collection of possibly-null entries. If {@code sameComparator}, then it is assumed
   * that they do not need to be sorted or checked for dupes.
   */
  private static <K, V> ImmutableSortedMap<K, V> fromEntries(
      Comparator<? super K> comparator,
      boolean sameComparator,
      Iterable<? extends Entry<? extends K, ? extends V>> entries) {

  }

  /**
   * Accepts a collection of possibly-null entries. If {@code sameComparator}, then it is assumed
   * that they do not need to be sorted or checked for dupes.
   */
  private static <K, V> ImmutableSortedMap<K, V> fromEntries(
      Comparator<? super K> comparator,
      boolean sameComparator,
      Iterable<? extends Entry<? extends K, ? extends V>> entries) {

	}

	// Sanity check. Enable if duplicates show up.
	if false {
		found := make(map[[16]byte]struct{})
		for _, ver := range merged {
			if _, ok := found[ver.header.VersionID]; ok {
				panic("found dupe")
			}
			found[ver.header.VersionID] = struct{}{}
		}
	}
	return merged
}

type xlMetaBuf []byte

// ToFileInfo converts xlMetaV2 into a common FileInfo datastructure