code: private function copyAdjustment(Model\AdjustmentInterface $source, Model\AdjustmentInterface $target)
      {
          $this->copy($source, $target, [
              'designation', 'type', 'mode', 'amount', 'immutable',
          ]);
      }
docs: Copies the source adjustment into the target adjustment.
  
  @param Model\AdjustmentInterface $source
  @param Model\AdjustmentInterface $target