code: @Deprecated
  	public static Collection<Key> create(Key parentKey, String kind, Collection<Long> ids) {
  		return Collections2.transform(ids, new IdToKeyFunction(kind).withParent(parentKey));
  	}
docs: Transform a collection of id values to the equivalent list of {@link Key}
  @param parentKey the parent key, if any. Can be null.
  @param kind the kind of keys to produce.
  @param ids the long values to use as keys
  @deprecated use Collections2.transform(ids, new IdToKeyFunction(kind).withParent(parentKey));