my $newds = @{$new}

Data::DumXML::Parser output # NEW DATA STRUCTURE WITH ARRAY REF
$VAR1 = [
    bless( {
        'tree' => {
            'aggregatePsExtentTable' => {
                '1' => 'aggregatePsExtentEntry'

Data::Dumper output # ORIGINAL DATA STRUCTURE
$VAR1 = bless( {
         'tree' => {
             'aggregatePsExtentEntry' => {
                 '1' => 'aggPsExtentIndex',