old_contents: from rest_framework.serializers import ModelSerializer
  
  from .models import Review
  
  
  class ReviewSerializer(ModelSerializer):
      class Meta:
          model = Review
          fields = (
              'steam_app_id', 'name', 'review_summary', 'review_detail_link',
              'localized_by_developer', 'localized_by_community'
          )
  
new_contents: from rest_framework.serializers import ModelSerializer
  
  from .models import Review
  
  
  class ReviewSerializer(ModelSerializer):
      class Meta:
          model = Review
          fields = (
              'steam_app_id', 'name',
              'review_summary', 'review_detail', 'review_detail_link',
              'localization_status', 'localized_by_developer', 'localized_by_community'
          )
  
subject: add localization_status field in API