in cpp/code/datasets.cc [31:39]
void SetUp() override {
airquality_partitioned_dir_ =
std::filesystem::temp_directory_path() / "cookbook_cpp_airquality";
std::shared_ptr<arrow::fs::FileSystem> fs =
std::make_shared<arrow::fs::LocalFileSystem>();
ASSERT_OK_AND_ASSIGN(std::shared_ptr<arrow::Table> airquality,
ReadInAirQuality(fs.get()));
WritePartitionedAirQuality(airquality, std::move(fs));
}