old_contents: from __future__ import unicode_literals
  from django.apps import AppConfig
  from django.conf import settings
  from django.utils.module_loading import import_string
  
  from django_fsm.signals import pre_transition, post_transition
  
  
  class DjangoFSMLogAppConfig(AppConfig):
      name = 'django_fsm_log'
      verbose_name = "Django FSM Log"
      default_auto_field = 'django.db.models.BigAutoField'
  
      def ready(self):
          backend = import_string(settings.DJANGO_FSM_LOG_STORAGE_METHOD)
          StateLog = self.get_model('StateLog')
  
          backend.setup_model(StateLog)
  
          pre_transition.connect(backend.pre_transition_callback)
          post_transition.connect(backend.post_transition_callback)
  
new_contents: from __future__ import unicode_literals
  from django.apps import AppConfig
  from django.conf import settings
  from django.utils.module_loading import import_string
  
  from django_fsm.signals import pre_transition, post_transition
  
  
  class DjangoFSMLogAppConfig(AppConfig):
      name = 'django_fsm_log'
      verbose_name = "Django FSM Log"
  
      def ready(self):
          backend = import_string(settings.DJANGO_FSM_LOG_STORAGE_METHOD)
          StateLog = self.get_model('StateLog')
  
          backend.setup_model(StateLog)
  
          pre_transition.connect(backend.pre_transition_callback)
          post_transition.connect(backend.post_transition_callback)
  
subject: Revert "Solve warning coming from django 4.0"