docs: public PackageDoc[] wrap(PackageDoc[] source) {
  		if (source == null) {
  			return null;
  		}
  		final List<PackageDoc> list = new ArrayList<>();
  		for (final PackageDoc element : source) {
  			if (isIncluded(element)) {
  				list.add(wrap(element));
  			}
  		}
  		return Utils.toArray(source, list);
  	}