def METHOD_NAME(sectors_dir, commercial_path):
    from muse.readers.toml import convert
    from muse.sectors import PresetSector
    settings = dict(
        commodities_path=str(commercial_path / "commodities.csv"),
        demand_path=str(sectors_dir.join("Demand.csv")),
    )
    nested = convert(dict(sectors=dict(residential=settings)))
    presets = PresetSector.factory("residential", nested)
    assert (presets.presets.supply.values == 0).all()
    assert (presets.presets.costs.values == 0).all()
    assert "consumption" in presets.presets