code: public function setPairedDataItem(DataItem $value)
      {
          $this->_pairedDataItem = $value;
          if (!isset($this->_localObject) && isset($value->localObject)) {
              $this->localObject = $value->localObject;
          }
  
          if (!isset($this->_foreignObject) && isset($value->foreignObject)) {
              $this->foreignObject = $value->foreignObject;
          }
  
          if ($value->handledDataItem) {
              $this->handledDataItem = $value->handledDataItem;
          }
      }
docs: Set paired data item.
  
  @param cascade\components\dataInterface\DataItem $value [[@doctodo param_description:value]]