code: def get_current_qualification_score(self, name, worker_id):
          
          qtype = self.get_qualification_type_by_name(name)
          if qtype is None:
              raise QualificationNotFoundException(
                  'No Qualification exists with name "{}"'.format(name)
              )
          try:
              score = self.get_qualification_score(qtype["id"], worker_id)
          except (WorkerLacksQualification, RevokedQualification):
              score = None
  
          return {"qtype": qtype, "score": score}
docs: Return the current score for a worker, on a qualification with the
          provided name.