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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 get_start_and_end_time(self, ref=None):
 """Specific function to get start time and end time for CalendarDaterange :param ref: time in seconds :type ref: int :return: tuple with start and end time :rtype: tuple (int, int) """

        return (get_start_of_day(self.syear, int(self.smon), self.smday),
                get_end_of_day(self.eyear, int(self.emon), self.emday))