old_contents: from django.contrib import admin
  
  # Register your models here.
  
new_contents: from django.contrib import admin
  
  from .models import Hacker, MacAdress
  
  
  @admin.register(Hacker)
  class HackerAdmin(admin.ModelAdmin):
      list_display = ('user', 'balance')
      # list_filter = ('balance',)
      search_fields = ('user',)
  
  
  @admin.register(MacAdress)
  class MacAdressAdmin(admin.ModelAdmin):
      list_display = ('adress', 'holder')
      # list_filter = ('adress',)
      search_fields = ('adress', 'holder')
  
subject: Add admin to hackers