Hey, whatever your name is,
There is a command called inspectdb in Django (python manage.py inspectdb). Basically it reads database tables configuration and creates a models script.
which can be copied into models.py then use it. And make sure that they are in models class meta for these tables are set to managed = False.
if managed set to false then Django will not modify database tables. But there is a catch, You have to manually update model if you change any table configuration from database side like form pgadmin4.
Thanks and Regards,
Naveen