code: def acknowledge(self, status):
          
          logging.info('Acknowledges status update {}'.format(status))
          return self.driver.acknowledgeStatusUpdate(encode(status))
docs: Acknowledges the status update.
  
          This should only be called once the status update is processed durably
          by the scheduler.
  
          Not that explicit acknowledgements must be requested via the constructor
          argument, otherwise a call to this method will cause the driver to
          crash.