old_contents: from api.models import Orbiter, LauncherDetail, Agency
  from rest_framework import serializers
  
  
  class LauncherModelSerializer(serializers.ModelSerializer):
      class Meta:
          model = LauncherDetail
          fields = ('id', 'url', 'name', 'description', 'agency', 'variant', 'legacy_image_url', 'image_url',
                    'info_url', 'wiki_url')
  
  
  class OrbiterSerializer(serializers.HyperlinkedModelSerializer):
      class Meta:
          model = Orbiter
          fields = ('id', 'url', 'name', 'agency', 'history', 'details', 'legacy_image_url', 'image_url',
                    'legacy_nation_url', 'nation_url', 'wiki_link')
  
  
  class OrbiterModelSerializer(serializers.ModelSerializer):
      class Meta:
          model = Orbiter
          fields = ('id', 'url', 'name', 'agency', 'legacy_image_url', 'image_url', 'legacy_nation_url', 'nation_url')
  
  
  class AgencySerializer(serializers.HyperlinkedModelSerializer):
      launcher_list = LauncherModelSerializer(many=True, read_only=True)
      orbiter_list = OrbiterModelSerializer(many=True, read_only=True)
  
      class Meta:
          model = Agency
          fields = ('url', 'name', 'featured', 'launchers', 'orbiters', 'launcher_list', 'orbiter_list', 'description',
                    'legacy_image_url', 'image_url', 'legacy_nation_url', 'nation_url', 'ceo', 'founding_year', 'logo_url',
                    'launch_library_url', 'launch_library_id')
  
  
  class LauncherDetailSerializer(serializers.HyperlinkedModelSerializer):
      class Meta:
          model = LauncherDetail
          fields = ('id', 'url', 'name', 'description', 'family', 's_family', 'full_name', 'agency',
                    'variant', 'alias', 'min_stage', 'max_stage', 'length', 'diameter',
                    'launch_mass', 'leo_capacity', 'gto_capacity', 'to_thrust', 'vehicle_class',
                    'apogee', 'vehicle_range', 'legacy_image_url', 'image_url', 'info_url', 'wiki_url')
  
new_contents: from api.models import Orbiter, LauncherDetail, Agency
  from rest_framework import serializers
  
  
  class LauncherModelSerializer(serializers.ModelSerializer):
      class Meta:
          model = LauncherDetail
          fields = ('id', 'url', 'name', 'description', 'agency', 'variant',  'image_url',
                    'info_url', 'wiki_url')
  
  
  class OrbiterSerializer(serializers.HyperlinkedModelSerializer):
      class Meta:
          model = Orbiter
          fields = ('id', 'url', 'name', 'agency', 'history', 'details', 'image_url',
                    'legacy_nation_url', 'nation_url', 'wiki_link')
  
  
  class OrbiterModelSerializer(serializers.ModelSerializer):
      class Meta:
          model = Orbiter
          fields = ('id', 'url', 'name', 'agency', 'image_url', 'legacy_nation_url', 'nation_url')
  
  
  class AgencySerializer(serializers.HyperlinkedModelSerializer):
      launcher_list = LauncherModelSerializer(many=True, read_only=True)
      orbiter_list = OrbiterModelSerializer(many=True, read_only=True)
  
      class Meta:
          model = Agency
          fields = ('url', 'name', 'featured', 'launchers', 'orbiters', 'launcher_list', 'orbiter_list', 'description',
                    'legacy_image_url', 'image_url', 'legacy_nation_url', 'nation_url', 'ceo', 'founding_year', 'logo_url',
                    'launch_library_url', 'launch_library_id')
  
  
  class LauncherDetailSerializer(serializers.HyperlinkedModelSerializer):
      class Meta:
          model = LauncherDetail
          fields = ('id', 'url', 'name', 'description', 'family', 's_family', 'full_name', 'agency',
                    'variant', 'alias', 'min_stage', 'max_stage', 'length', 'diameter',
                    'launch_mass', 'leo_capacity', 'gto_capacity', 'to_thrust', 'vehicle_class',
                    'apogee', 'vehicle_range', 'image_url', 'info_url', 'wiki_url')
  
subject: Remove legacy image URL's from v200