code: def clean_delete(self):
          
  
          yield from self._hypervisor.send('vm clean_delete "{}"'.format(self._name))
          self._hypervisor.devices.remove(self)
          try:
              yield from wait_run_in_executor(shutil.rmtree, self._working_directory)
          except OSError as e:
              log.warn("Could not delete file {}".format(e))
          log.info('Router "{name}" [{id}] has been deleted (including associated files)'.format(name=self._name, id=self._id))
docs: Deletes this router & associated files (nvram, disks etc.)