code: def get_shelveset_work_items(self, shelveset_id):
          
          query_parameters = {}
          if shelveset_id is not None:
              query_parameters['shelvesetId'] = self._serialize.query('shelveset_id', shelveset_id, 'str')
          response = self._send(http_method='GET',
                                location_id='a7a0c1c1-373e-425a-b031-a519474d743d',
                                version='5.0',
                                query_parameters=query_parameters)
          return self._deserialize('[AssociatedWorkItem]', self._unwrap_collection(response))
docs: GetShelvesetWorkItems.
          Get work items associated with a shelveset.
          :param str shelveset_id: Shelveset's unique ID
          :rtype: [AssociatedWorkItem]