code: def get_objective(self):
          
          # Note that this makes the generic objectives call to Handcar
          # without specifying the objectiveBank:
          url_str = (self._base_url + '/objectives/' +
                     self._my_map['objectiveId'])
          return Objective(self._load_json(url_str))
docs: Gets the related objective.
  
          return: (osid.learning.Objective) - the related objective
          raise:  OperationFailed - unable to complete request
          compliance: mandatory - This method must be implemented.