@Fkebbati First, traffic cost in Azure are not reported as a separate Resource Type, but appended to main resource causing the traffic. If you want to distinguish them use for instance Service Name. In this case traffic cost is appended to Databricks...
Due to new functionalies in Runtime 16.0 regarding autoload i came across this autoload. Performaed a practical test. It works. However had some problems at first.As in solution the key was that definitions are places in a file.py not a notebook.