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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 report_down(self, service, port):
 """ Reports the given service's present node as down by deleting the node's znode in Zookeeper if the znode is present. Waits for the Zookeeper connection to be established before further action is taken. """

        wait_on_any(self.connected, self.shutdown)

        node = Node.current(service, port)

        path = self.path_of(service, node)
        try:
            logger.debug("Deleting znode at %s", path)
            self.client.delete(path)
        except exceptions.NoNodeError:
            pass