new_contents: from django.contrib import admin
  from .models import *
  
  
  class PillowCheckpointAdmin(admin.ModelAdmin):
  
      model = DjangoPillowCheckpoint
      list_display = [
          'checkpoint_id',
          'timestamp',
          'sequence',
      ]
  
  
  admin.site.register(DjangoPillowCheckpoint, PillowCheckpointAdmin)
  
  
subject: add admin