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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_score_system_id(self):
 """Gets a score system ``Id`` for the assessment. return: (osid.id.Id) - the grade system raise: IllegalState - ``is_score()`` is ``false`` *compliance: mandatory -- This method must be implemented.* """

        # Implemented from template for osid.resource.Resource.get_avatar_template
        if not bool(self._my_map['scoreSystemId']):
            raise errors.IllegalState('this AssessmentTaken has no score_system')
        mgr = self._get_provider_manager('ID')
        if not mgr.supports_id_lookup():
            raise errors.OperationFailed('Id does not support Id lookup')
        lookup_session = mgr.get_id_lookup_session(proxy=getattr(self, "_proxy", None))
        lookup_session.use_federated_no_catalog_view()
        osid_object = lookup_session.get_id(self.get_score_system_id())
        return osid_object