new_contents: from django.contrib import admin
  
  from history.models import Event
  
  
  class EventAdmin(admin.ModelAdmin):
      list_display = ["package", "version", "data", "created"]
      list_filter = ["created"]
      search_fields = ["package", "version"]
  
  
  admin.register(Event, EventAdmin)
  
subject: add history events to the admin