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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 _getFromTime(self, atDate=None):
 """ What was the time of this event? Due to time zones that depends what day we are talking about. If no day is given, assume today. """

        if atDate is None:
            atDate = timezone.localdate(timezone=self.tz)
        return getLocalTime(atDate, self.time_from, self.tz)