old_contents: from django.contrib import admin
  
  # Register your models here.
  
new_contents: from django.contrib import admin
  
  # Register your models here.
  
  from . import models
  
  
  class AnnotationCategoryAdmin(admin.ModelAdmin):
      pass
  
  
  class ItemTypeAdmin(admin.ModelAdmin):
      pass
  
  
  class AnnotationCategoryValueAdmin(admin.ModelAdmin):
      pass
  
  
  admin.site.register(models.AnnotationCategory, AnnotationCategoryAdmin)
  admin.site.register(models.AnnotationCategoryValue, AnnotationCategoryValueAdmin)
  admin.site.register(models.ItemType, ItemTypeAdmin)
  
subject: Update intonation admin