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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 __offset_notifiers(self, offset):
 """ Offsets existing notifiers. :param offset: Offset. :type offset: int """


        overall_offset = offset
        for notifier in self.__notifiers:
            notifier.vertical_offset = overall_offset
            notifier.refresh_position()
            overall_offset += offset