code: def assign_qualification(self, qualification_id, worker_id, score, notify=False):
          
          return self._is_ok(
              self.mturk.associate_qualification_with_worker(
                  QualificationTypeId=qualification_id,
                  WorkerId=worker_id,
                  IntegerValue=score,
                  SendNotification=notify,
              )
          )
docs: Score a worker for a specific qualification