offset(
job :: %Exq.Support.Job{
args: term(),
class: term(),
enqueued_at: term(),
error_class: term(),
error_message: term(),
failed_at: term(),
finished_at: term(),
jid: term(),
processor: term(),
queue: term(),
retried_at: term(),
retry: term(),
retry_count: term()
}
) :: number()