code: def get_taker_id(self):
          
          if self._my_map['takerId']:
              return Id(self._my_map['takerId'])
          else:
              return Id(self._my_map['takingAgentId'])
docs: 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.*