traceback on run.py

[robclemamzn]

getting a runtime error on basic first run. it seems something isnt declared.
using python v3.12 if it matters.

Traceback (most recent call last):
File "/private/tmp/Klv_extractor/run.py", line 40, in
extract_klv(args.file)
File "/private/tmp/Klv_extractor/run.py", line 10, in extract_klv
packet.structure()
^^^^^^^^^^^^^^^^
AttributeError: 'UnknownElement' object has no attribute 'structure'