old_contents: from django.contrib import admin
  from knox import models
  
  @admin.register(models.AuthToken)
  class AuthTokenAdmin(admin.ModelAdmin):
      list_display = ('digest', 'user', 'created',)
      fields = ()
  
new_contents: from django.contrib import admin
  from knox import models
  
  
  @admin.register(models.AuthToken)
  class AuthTokenAdmin(admin.ModelAdmin):
      list_display = ('digest', 'user', 'created',)
      fields = ()
      raw_id_fields = ('user',)
  
subject: Make 'user' field of authtokenadmin a raw_id for not having to render huge select lists for big user tables