def METHOD_NAME(small_scenario, west_to_south_east_simulations: Iterable[int]):
    ids = west_to_south_east_simulations[0:2]
    schedules = requests.get(f"{API_URL}train_schedule/results/?timetable_id={small_scenario.timetable}").json()
    old_len = len(schedules)
    r = requests.delete(f"{API_URL}train_schedule/", json={"ids": ids})
    if r.status_code // 100 != 2:
        raise RuntimeError(f"Schedule error {r.status_code}: {r.content}, payload={json.dumps(ids)}")
    schedules = requests.get(f"{API_URL}train_schedule/results/?timetable_id={small_scenario.timetable}").json()
    assert len(schedules) == old_len - 2