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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_current_qualification_score(self, name, worker_id):
 """Return the current score for a worker, on a qualification with the provided name. """

        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}