TypeError: cannot create 'builtins.VirtualizedDatabase' instances

[rpietzsch]

Thank you for your inspiring post and this repo. When replicating/running (after installing the venv and deps with uv and successfully executing uv run python setup_data.py which Saved to data/weather.duckdb) main.py fails with:

$ uv run python main.py 
Knowledge graph: 371 triples (12 stations, 36 sensors)
Traceback (most recent call last):
  File "/Users/rene/Documents/git/github/DataTreehouse/chrontext-demo/main.py", line 153, in <module>
    vdb = VirtualizedDatabase(
        database=db,
        resource_sql_map={name: make_resource_sql(name) for name in measurands},
        sql_dialect="postgres",
    )
TypeError: cannot create 'builtins.VirtualizedDatabase' instances

any suggestions?