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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 execute(self, sql, params=None):
 """Just a pointer to engine.execute """

        # wrap in a transaction to ensure things are committed
        # https://github.com/smnorris/pgdata/issues/3
        with self.engine.begin() as conn:
            result = conn.execute(sql, params)
        return result