def _update(self, values):
        assert self.query.can_filter(), \
            "Cannot update a query once a slice has been taken."
        query = self.query.clone(sql.UpdateQuery)
        query.add_update_fields(values)
        self._result_cache = None
        return query.get_compiler(self.db).execute_sql(CURSOR)
set parameters according to specification
dataset/ETHPy150Open django/django/django/db/models/query.py/QuerySet._update--crossover with--dataset/ETHPy150Open projectatomic/osbs-client/osbs/build/build_request.py/SimpleBuild.set_params