How to control rights when working with DB Models?

Question

Django

Greetings!
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At first I will write an approximate code of what I want.

# ставим условие, что внутри контекста мы можем только читать MyModel,
# в остальных случаях работы с БД должна возникать ошибка
with permissions(MyModel, 'read'):
    mm = MyModel.objects.get()  # работает
    mm.atribute = 123
    mm.save()  # ошибка, тк нет разрешения на запись
    MyModel.objects.create()  # ошибка, тк нет разрешения на создание
    OtherModel.objects.get()  # ошибка, тк другая модель

The problem is that in my project a function will be executed, the content of which I do not know.
I need some insurance.
Leave her access rights to a couple of tables, and restrict access to all other database tables.
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I found a library that solves this issue:
https://github.com/pgorecki/django-cancan
But it's not popular at all, I'm afraid to integrate it into the prod.
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If there is a solution based on the rights of Users, then super.
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Thank you!