def enqueue_in(number_of_seconds_from_now, klass, *args)
      enqueue_at(Time.now + number_of_seconds_from_now, klass, *args)
    end
def enqueue_in(number_of_seconds_from_now, klass, *args)
      enqueue_at(Time.now + number_of_seconds_from_now, klass, *args)
    end
Identical to enqueue_at but takes number_of_seconds_from_now
 instead of a timestamp.