old_contents: import importlib
  from typing import List, Tuple, Union
  from django.utils.translation import ugettext_lazy as _
  from django.apps import AppConfig
  
  
  class MqueueConfig(AppConfig):
      name = "mqueue"
      verbose_name = _(u"Events queue")
  
      def ready(self):
          # models registration from settings
          from django.conf import settings
          from .tracking import mqueue_tracker
  
          registered_models: Union[
              Tuple[str, List[str]], List[Union[str, List[str]]]
          ] = getattr(settings, "MQUEUE_AUTOREGISTER", [])
          for modtup in registered_models:
              modpath = modtup[0]
              level = modtup[1]
              modsplit = modpath.split(".")
              path = ".".join(modsplit[:-1])
              modname = ".".join(modsplit[-1:])
              try:
                  module = importlib.import_module(path)
                  model = getattr(module, modname)
                  mqueue_tracker.register(model, level)  # type: ignore
              except ImportError as e:
                  msg = "ERROR from Django Mqueue : can not import model "
                  msg += modpath
                  print(msg)
                  raise (e)
  
          # watchers
          from .watchers import init_watchers
          from .conf import WATCH
  
          init_watchers(WATCH)
  
new_contents: import importlib
  from typing import List, Tuple, Union
  from django.utils.translation import gettext_lazy as _
  from django.apps import AppConfig
  
  
  class MqueueConfig(AppConfig):
      name = "mqueue"
      default_auto_field = "django.db.models.BigAutoField"
      verbose_name = _("Events queue")
  
      def ready(self):
          # models registration from settings
          from django.conf import settings
          from .tracking import mqueue_tracker
  
          registered_models: Union[
              Tuple[str, List[str]], List[Union[str, List[str]]]
          ] = getattr(settings, "MQUEUE_AUTOREGISTER", [])
          for modtup in registered_models:
              modpath = modtup[0]
              level = modtup[1]
              modsplit = modpath.split(".")
              path = ".".join(modsplit[:-1])
              modname = ".".join(modsplit[-1:])
              try:
                  module = importlib.import_module(path)
                  model = getattr(module, modname)
                  mqueue_tracker.register(model, level)  # type: ignore
              except ImportError as e:
                  msg = "ERROR from Django Mqueue : can not import model "
                  msg += modpath
                  print(msg)
                  raise (e)
  
          # watchers
          from .watchers import init_watchers
          from .conf import WATCH
  
          init_watchers(WATCH)
  
subject: Add bigautofield default in app conf