CELERYBEAT_SCHEDULE = {'every-minute_add': {'task': 'tasks.add', 'schedule':
    [crontab(minute='*/1'), crontab(minute='*/1')], 'args': [(1, 2), (3, 4)
    ]}, 'every-minute_multiply': {'task': 'task.multiply', 'schedule': [
    crontab(minute='*/1'), crontab(minute='*/1')], 'args': [(1, 2), (3, 4)]}}
Celery beat schedule multiple tasks under same time-interval group