def METHOD_NAME(screen: Screen):
    with ui.scene() as scene:
        sphere = scene.sphere().move(0, -4, 0)
        ui.timer(0.1, lambda: sphere.move(0, sphere.y + 0.5, 0))
    screen.open('/')
    screen.wait(0.4)
    screen.switch_to(1)
    screen.open('/')
    screen.switch_to(0)
    screen.wait(0.2)
    assert screen.selenium.execute_script(f'return scene_c{scene.id}.children.length') == 5