and marked as `failed`. Its default unit is second and it can be an integer or a string representing an integer(e.g. `2`, `'2'`). Furthermore, it can be a string with specify unit including hour, minute, second(e.g. `'1h'`, `'3m'`, `'5s'`).
* `result_ttl` specifies how long (in seconds) successful jobs and their
results are kept. Expired jobs will be automatically deleted. Defaults to 500 seconds.
* `ttl` specifies the maximum queued time of the job before it's discarded.
If you specify a value of `-1` you indicate an infinite job ttl and it will run indefinitely
* `ttl` specifies the maximum queued time (in seconds) of the job before it's discarded.
This argument defaults to `None` (infinite TTL).
* `failure_ttl` specifies how long failed jobs are kept (defaults to 1 year)
* `depends_on` specifies another job (or job id) that must complete before this