Oracle database sequences generated by Django

Hello everyone. I have a web application built in Django == 1.11.6, when the migrations were generated in oracle the sequences are created and they can be modified and even deleted. When I update to django 3 and I generate the migrations again, it creates the sequences with a name similar to

Serialize the same model twice

I am building an API from a model which gives me the following structure { "user_nucleus_id": 2, "user_id": 2, "nucleus": 2, "family_id": 2, "date": "1974-05-19T19:00:00-05:00" } But now I get the following API structure request. What I understand is that I must serialize the sam