def METHOD_NAME(tmp_path):
    from muse.examples import copy_model
    from muse.readers.csv import read_initial_assets
    copy_model("default", tmp_path / "default")
    copy_model("trade", tmp_path / "trade")
    def path(x, y):
        return (
            tmp_path / x / "model" / "technodata" / "gas" / f"Existing{y.title()}.csv"
        )
    assets = read_initial_assets(path("default", "capacity"))
    assert set(assets.dims) == {"year", "region", "asset"}
    assets = read_initial_assets(path("trade", "trade"))
    assert set(assets.dims) == {"year", "region", "asset", "dst_region"}