docs: def wait_for_jobs(jobs):
      """Waits for all the jobs to be runnning.
  
      Args:
          jobs(list): list of the python-grid5000 jobs to wait for
  
  
      Raises:
          Exception: if one of the job gets in error state.
      """
  
      all_running = False
      while not all_running:
          all_running = True
          time.sleep(5)
          for job in jobs:
              job.refresh()
              scheduled = getattr(job, "scheduled_at", None)
              if scheduled is not None:
                  logger.info("Waiting for %s on %s [%s]" % (job.uid,
                                                             job.site,
                                                             _date2h(scheduled)))
              all_running = all_running and job.state == "running"
              if job.state == "error":
                  raise Exception("The job %s is in error state" % job)
      logger.info("All jobs are Running !")