code: def autodiscover(module_name=None):
      
      from django.utils.module_loading import module_has_submodule
      from permission.compat import import_module
      from permission.conf import settings
  
      module_name = module_name or settings.PERMISSION_AUTODISCOVER_MODULE_NAME
      app_names = (app.name for app in apps.app_configs.values())
  
      for app in app_names:
          mod = import_module(app)
          # Attempt to import the app's perms module
          try:
              # discover the permission module
              discover(app, module_name=module_name)
          except:
              # Decide whether to bubble up this error. If the app just doesn't
              # have an perms module, we can just ignore the error attempting
              # to import it, otherwise we want it to bubble up.
              if module_has_submodule(mod, module_name):
                  raise
docs: Autodiscover INSTALLED_APPS perms.py modules and fail silently when not
      present. This forces an import on them to register any permissions bits
      they may want.