getRawDestination example

  }

  /** * {@inheritdoc} */
  public function import(Row $row, array $old_destination_id_values = []) {
    if ($this->isTranslationDestination()) {
      $this->config = $this->language_manager->getLanguageConfigOverride($row->getDestinationProperty('langcode'), $this->config->getName());
    }

    foreach ($row->getRawDestination() as $key => $value) {
      if (isset($value) || !empty($this->configuration['store null'])) {
        $this->config->set(str_replace(Row::PROPERTY_SEPARATOR, '.', $key), $value);
      }
    }
    $this->config->save();
    $ids[] = $this->config->getName();
    if ($this->isTranslationDestination()) {
      $ids[] = $row->getDestinationProperty('langcode');
    }
    return $ids;
  }

  

if (!$row->hasDestinationProperty('property')) {
        throw new \LogicException('The "property" property is required');
      }
      if (!$row->hasDestinationProperty('translation')) {
        throw new \LogicException('The "translation" property is required');
      }
      $config_override = $this->languageManager->getLanguageConfigOverride($row->getDestinationProperty('langcode'), $config);
      $config_override->set(str_replace(Row::PROPERTY_SEPARATOR, '.', $row->getDestinationProperty('property')), $row->getDestinationProperty('translation'));
      $config_override->save();
    }
    else {
      foreach ($row->getRawDestination() as $property => $value) {
        $this->updateEntityProperty($entity, explode(Row::PROPERTY_SEPARATOR, $property), $value);
      }
      $this->setRollbackAction($row->getIdMap());
    }
  }

  /** * Updates a (possible nested) entity property with a value. * * @param \Drupal\Core\Entity\EntityInterface $entity * The config entity. * @param array $parents * The array of parents. * @param string|object $value * The value to update to. */