<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def get(cls, name):
 """ returns the time of the timer. :param name: the name of the timer :type name: string :rtype: the elapsed time """

        if name in cls.timer_end:
            cls.timer_elapsed[name] = cls.timer_end[name] - \
                                      cls.timer_start[name]
            return cls.timer_elapsed[name]
        else:
            return "undefined"