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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 process(self, metric):
 """ Process a metric by converting metric name to MQTT topic name; the payload is metric and timestamp. """


        if not mosquitto:
            return

        line = str(metric)
        topic, value, timestamp = line.split()
        if len(self.prefix):
            topic = "%s/%s" % (self.prefix, topic)
        topic = topic.replace('.', '/')
        topic = topic.replace('#', '&')     # Topic must not contain wildcards

        if self.timestamp == 0:
            self.mqttc.publish(topic, "%s" % (value), self.qos)
        else:
            self.mqttc.publish(topic, "%s %s" % (value, timestamp), self.qos)