def post(self, request, *args, **kwargs):
        content_type = self.request.META.get('CONTENT_TYPE', '')
        if (content_type in 'application/json'
                and self.get_batch_json_key() in request.data):
            return self.post_json(request, *args, **kwargs)
        return super(BatchJSONMixin, self).post(request, *args, **kwargs)
dataset/ETHPy150Open bueda/django-comrade/comrade/views/generic/content.py/BatchJSONMixin.post/swapped operands of `in`