This an API interface to the Brunata Online portal.
Requires that you can get an initial token out of a browser, use the "Inspect" tool in the browser. Use the network inspector (enable Persist Logs), do the actual login, and then search for a "token" »Filter URLs«. Right click on the "token" file and then »Save Response As« to save the token for use with this library.
Since the API of Brunara Online (https://online.brunata.com/) is not public as such, there is no ducumentation avaliable. Since I personally only have access to a water meter, some of the data that is recieved from other meters may not make much sense.