def ChkCTStarOnly(cron_time_field):
  if not cron_time_field:
    return True
  if len(cron_time_field) == 1 and cron_time_field[0].Kind == 'star':
    return True
  return False
Checks if a crontab field is only a *.
dataset/ETHPy150Open lyda/chkcrontab/chkcrontab_lib.py/ChkCTStarOnly