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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_date(self):
 """Gets the start date. return: (osid.calendaring.DateTime) - the start date *compliance: mandatory -- This method must be implemented.* """

        sdate = self._my_map['startDate']
        return DateTime(
            sdate.year,
            sdate.month,
            sdate.day,
            sdate.hour,
            sdate.minute,
            sdate.second,
            sdate.microsecond)