code: def new_job_file(frontier, job_conf_file):
      '''Returns new Job.'''
      logging.info("loading %s", job_conf_file)
      with open(job_conf_file) as f:
          job_conf = yaml.safe_load(f)
          return new_job(frontier, job_conff new_job_file(frontier, job_conf_file):
      '''Returns new Job.'''
      logging.info("loading %s", job_conf_file)
      with open(job_conf_file) as f:
          job_conf = yaml.safe_load(f)
          return new_job(frontier, job_conf)
docs: Returns new Job.