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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_taker_id(self):
 """Gets the ``Id`` of the resource who took or is taking this assessment. return: (osid.id.Id) - the resource ``Id`` *compliance: mandatory -- This method must be implemented.* """

        if self._my_map['takerId']:
            return Id(self._my_map['takerId'])
        else:
            return Id(self._my_map['takingAgentId'])