Scheduled vals come in two flavors: “Run every” and “Cron”.
You can specify an amount of time between runs, such as “run every 2 hours.”
You can specify a cron expression for when your val should run, specified in the UTC timezone.
Interval argumentScheduled Vals can optionally accept one argument, which includes some metadata about the interval. For example, you can get the most recent time the interval was run to filter out data that was already seen: