TTN-V3 to a GCP InfluxDB Instance

Hi.
I am trying to reroute data from a TTN-V3 application to an InfluxDB instance on GCP using this python code (link : ttn-python). No success yet.
Any pointers please?

I think that is V2 documentation plus it states " *The support and maintenance for this SDK has been discontinued, it is not recommended to use the SDK for new projects."