def METHOD_NAME(
    small_scenario: Scenario,
    west_to_south_east_path: TrainPath,
    fast_rolling_stock: int,
) -> List[int]:
    response = requests.post(
        f"{API_URL}train_schedule/standalone_simulation/",
        json={
            "timetable": small_scenario.timetable,
            "path": west_to_south_east_path.id,
            "schedules": [
                {
                    "train_name": "foo",
                    "labels": [],
                    "allowances": [],
                    "departure_time": 0,
                    "initial_speed": 0,
                    "rolling_stock": fast_rolling_stock,
                    "speed_limit_category": "foo",
                }
            ],
        },
    )
    yield response.json()["ids"]