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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 _first_datetime_from(self):
 """ The datetime this event first started in the local time zone, or None if it never did. """

        myFromDt = self._getMyFirstDatetimeFrom()
        localTZ = timezone.get_current_timezone()
        return myFromDt.astimezone(localTZ)