def setUp(self):
        # Create ES mapping
        self.es_mapping = Elasticsearch7SearchBackend.mapping_class(
            models.Book)

        # Create ES document
        self.obj = models.Book.objects.get(id=4)
    def setUp(self):
        # Create ES mapping
        self.es_mapping = Elasticsearch7SearchBackend.mapping_class(models.Novel)

        self.obj = models.Novel.objects.get(id=4)