Tarearbol.Scheduler.push

You're seeing just the function push, go back to Tarearbol.Scheduler module for more information.
Link to this function

push(name, runner, schedule)

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Specs

push(name :: binary(), runner :: runner(), schedule :: schedule()) :: :ok

Creates and temporarily pushes the job to the list of currently scheduled jobs.

For the implementation that survives restarts use push!/3.