*/
public static Optional<NormalizedNode<?,?>> aggregate(final YangInstanceIdentifier rootIdentifier,
final List<Optional<NormalizedNode<?, ?>>> nodes, final SchemaContext schemaContext,
*/
public static Optional<NormalizedNode<?,?>> aggregate(final YangInstanceIdentifier rootIdentifier,
final List<Optional<NormalizedNode<?, ?>>> nodes, final SchemaContext schemaContext,