code: def get_qualification_score(self, qualification_id, worker_id):
          
          try:
              response = self.mturk.get_qualification_score(
                  QualificationTypeId=qualification_id, WorkerId=worker_id
              )
          except ClientError as ex:
              error = str(ex)
              if "does not exist" in error:
                  raise WorkerLacksQualification(
                      "Worker {} does not have qualification {}.".format(
                          worker_id, qualification_id
                      )
                  )
              if "operation can be called with a status of: Granted" in error:
                  raise RevokedQualification(
                      "Worker {} has had qualification {} revoked.".format(
                          worker_id, qualification_id
                      )
                  )
  
              raise MTurkServiceException(error)
          return response["Qualification"]["IntegerValue"]
docs: Return a worker's qualification score as an iteger.