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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def elapsed(self, total=True):
 """Return the elapsed time for the timer. Parameters total : bool, optional (default True) If ``True`` return the total elapsed time since the first call of :meth:`start` for the selected timer, otherwise return the elapsed time since the most recent call of :meth:`start` for which there has not been a corresponding call to :meth:`stop`. Returns ------- dlt : float Elapsed time """


        return self.timer.elapsed(self.label, total=total)