def METHOD_NAME():                            # pragma: debugging
    """Ad-hoc utility to show data from the last tracked-test run."""
    times = collections.defaultdict(float)
    tests = collections.defaultdict(int)
    tests_csv_dir = Path("tmp/tests_csv")
    for csv_file in tests_csv_dir.iterdir():
        with csv_file.open(newline="") as fcsv:
            reader = csv.reader(fcsv)
            for row in reader:
                worker = row[0]
                duration = float(row[3])
                times[worker] += duration
                if row[2] == "call":
                    tests[worker] += 1
    for worker in sorted(tests.keys()):
        print(f"{worker}: {tests[worker]:3d} {times[worker]:.2f}")
    total = sum(times.values())
    avg = total / len(times)
    print(f"total: {total:.2f}, avg: {avg:.2f}")
    lo = min(times.values())
    hi = max(times.values())
    print(f"lo = {lo:.2f}; hi = {hi:.2f}; gap = {hi - lo:.2f}; long delta = {hi - avg:.2f}")