def trigger_actions(self, subsystem):
        """
        Refresh all modules which subscribed to the given subsystem.
        """
        for py3_module, trigger_action in self.udev_consumers[subsystem]:
            if trigger_action in ON_TRIGGER_ACTIONS:
                self.py3_wrapper.log(
                    "%s udev event, refresh consumer %s"
                    % (subsystem, py3_module.module_full_name)
                )
                py3_module.force_update()
Refresh all modules which subscribed to the given subsystem.