/**
  * {@inheritdoc}
  */
 public function convertToExportFormat(array $exportedRecord, $skipNullValues = true)
 {
     $exportedRecord = parent::convertToExportFormat($exportedRecord, $skipNullValues);
     $streets = [];
     if (!empty($exportedRecord['street'])) {
         $streets[] = $exportedRecord['street'];
         unset($exportedRecord['street']);
     }
     if (!empty($exportedRecord['street2'])) {
         $streets[] = $exportedRecord['street2'];
         unset($exportedRecord['street2']);
     }
     if ($streets) {
         $exportedRecord['street'] = $streets;
     }
     return $exportedRecord;
 }
 /**
  * {@inheritdoc}
  */
 public function convertToExportFormat(array $exportedRecord, $skipNullValues = true)
 {
     $rules = $this->getHeaderConversionRules();
     $nodeData = [];
     foreach ($this->nodeDataConverters as $nodeKey => $dataConverter) {
         if (array_key_exists($nodeKey, $rules)) {
             $dataKey = $rules[$nodeKey];
         } else {
             $dataKey = $nodeKey;
         }
         if (!empty($exportedRecord[$dataKey]) && is_array($exportedRecord[$dataKey])) {
             if (empty($this->toManyDataConverters[$nodeKey])) {
                 $nodeData[$nodeKey] = $dataConverter->convertToExportFormat($exportedRecord[$dataKey], $skipNullValues);
             } else {
                 foreach ($exportedRecord[$dataKey] as $key => $record) {
                     $nodeData[$nodeKey][$key] = $dataConverter->convertToExportFormat($record, $skipNullValues);
                 }
             }
         }
         unset($exportedRecord[$dataKey]);
     }
     return array_merge(parent::convertToExportFormat($exportedRecord, $skipNullValues), $nodeData);
 }