docs: def get_collections(self, data):
          """Return serialized list of collection objects on data that user has `view` permission on."""
          collections = self._filter_queryset('view_collection', data.collection_set.all())
  
          from .collection import CollectionSerializer
  
          class CollectionWithoutDataSerializer(WithoutDataSerializerMixin, CollectionSerializer):
              """Collection without data field serializer."""
  
          return self._serialize_items(CollectionWithoutDataSerializer, 'collections', collections)