public function readTDTtransportIdentification($transportStageQualifier)
{
$transportIdentification = $this->readEdiDataValue(['TDT', ['1' => $transportStageQualifier]], 8, 0);
if (!empty($transportIdentification)) {
return $transportIdentification;
}
return $this->readEdiDataValue(['TDT', ['1' => $transportStageQualifier]], 8);
}