On message callback will contain a python dictonary using the [Universal Sonde Telemetry Format](https://github.com/projecthorus/radiosonde_auto_rx/wiki/SondeHub-DB-Universal-Telemetry-Format)
Manual usage of the Paho MQTT network loop can be obtained by using the `loop`, `loop_forever`, `loop_start` and `loop_stop` functions, taking care to ensure that the different types of network loop aren't mixed. See Paho documentation [here](https://www.eclipse.org/paho/index.php?page=clients/python/docs/index.php#network-loop).
```python
test = sondehub.Stream(on_message=on_message, sondes=sondes, auto_start_loop=False)
A basic interface to the Open Data is a available using `sondehub.download(serial=, datetime_prefix=)`. When using datetime_prefix only summary data is provided (the oldest, newest and highest frames)