def on_connection_resumed()

in provisioningHandler.py [0:0]


    def on_connection_resumed(self, connection, return_code, session_present, **kwargs):
        print("Connection resumed. return_code: {} session_present: {}".format(return_code, session_present))

        if return_code == mqtt.ConnectReturnCode.ACCEPTED and not session_present:
            print("Session did not persist. Resubscribing to existing topics...")
            resubscribe_future, _ = connection.resubscribe_existing_topics()

            # Cannot synchronously wait for resubscribe result because we're on the connection's event-loop thread,
            # evaluate result with a callback instead.
            resubscribe_future.add_done_callback(self.on_resubscribe_complete)