old_contents: from django.apps import AppConfig
  
  from django.contrib.auth.signals import user_logged_in
  from experiments.signal_handlers import transfer_enrollments_to_user
  
  
  class ExperimentsConfig(AppConfig):
      def ready(self):
          user_logged_in.connect(transfer_enrollments_to_user, dispatch_uid="experiments_user_logged_in")
  
  
new_contents: from django.apps import AppConfig
  
  class ExperimentsConfig(AppConfig):
      def ready(self):
          from django.contrib.auth.signals import user_logged_in
          from experiments.signal_handlers import transfer_enrollments_to_user
  
          user_logged_in.connect(transfer_enrollments_to_user, dispatch_uid="experiments_user_logged_in")
  
  
subject: move imports into apps