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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 save_work_request_and_close(self, ch, method, properties, body):
 """ Save message body and close connection """

        self.work_request = pickle.loads(body)
        ch.basic_ack(delivery_tag=method.delivery_tag)
        ch.stop_consuming()
        self.connection.close()