code: def close(self, value):
          
          if value is None:
              status = Job.TERMINATED
              status_comment = "Job successfully terminated"
          else:
              status = Job.FAILED
              status_comment = str(value)[:255]
  
          self._job.status = status
          self._job.statusComment = status_comment 
          self._job.update()
docs: Notify the Cytomine server of the job's end
          Incurs a dataflows