How to use the beamngpy.sensors.GForces function in beamngpy

def test_gforces(beamng):
    scenario = Scenario('west_coast_usa', 'gforce_test')
    vehicle = Vehicle('test_car', model='etk800')

    gforces = GForces()
    vehicle.attach_sensor('gforces', gforces)

    scenario.add_vehicle(vehicle, pos=(-717.121, 101, 118.675), rot=(0, 0, 45))
    scenario.make(beamng)

    gx = []
    gy = []
    with beamng as bng:
        bng.load_scenario(scenario)
        bng.start_scenario()
        bng.step(120)

        vehicle.ai_set_aggression(2)
        vehicle.ai_set_mode('span')

        for _ in range(64):

# Set up sensors
    pos = (-0.3, 1, 1.0)
    direction = (0, 1, 0)
    fov = 120
    resolution = (512, 512)
    front_camera = Camera(pos, direction, fov, resolution,
                          colour=True, depth=True, annotation=True)
    pos = (0.0, 3, 1.0)
    direction = (0, -1, 0)
    fov = 90
    resolution = (512, 512)
    back_camera = Camera(pos, direction, fov, resolution,
                         colour=True, depth=True, annotation=True)

    gforces = GForces()
    electrics = Electrics()
    damage = Damage()
    lidar = Lidar(visualized=False)
    timer = Timer()

    # Attach them
    vehicle.attach_sensor('front_cam', front_camera)
    vehicle.attach_sensor('back_cam', back_camera)
    vehicle.attach_sensor('gforces', gforces)
    vehicle.attach_sensor('electrics', electrics)
    vehicle.attach_sensor('damage', damage)
    vehicle.attach_sensor('timer', timer)

    scenario.add_vehicle(vehicle, pos=(-717.121, 101, 118.675), rot=(0, 0, 45))

    # Compile the scenario and place it in BeamNG's map folder