## Scheduler.cron()


Schedule a task using a cron expression.


Usage

``` python
Scheduler.cron(
    expr,
    fn=None,
    name="",
)
```


## Parameters


`expr: str`  
Cron expression (e.g., `*/5 * * * *`).

`fn=None`  
Callable to execute.

`name: str = ``""`  
Task identifier.


## Returns


`Task`  
The registered task.