old_contents: from __future__ import unicode_literals
  
  from django.apps import AppConfig
  
  
  class BuildConfig(AppConfig):
      name = 'mrbelvedereci.build'
  
new_contents: from __future__ import unicode_literals
  
  from django.apps import AppConfig
  
  
  class BuildConfig(AppConfig):
      name = 'mrbelvedereci.build'
  
      def ready(self):
          import mrbelvedereci.build.handlers
  
subject: Include handlers in build app