old_contents: from django.contrib import admin
  
  # Register your models here.
  
new_contents: from django.contrib import admin
  
  # Register your models here.
  
  from .models import Preferences, PersonFollow, TopicFollow, LocationFollow
  
  admin.site.register(Preferences)
  admin.site.register(PersonFollow)
  
subject: Add some user preferences to admin panel