def METHOD_NAME(demoinfo: DemoInfo):
    editor_id = demoinfo.add_editor(editor_name, editor_email).unwrap()
    demoinfo.add_demo(demo_id, demo_title, state).unwrap()
    demoinfo.add_editor_to_demo(demo_id, editor_id).unwrap()
    demoinfo.remove_editor_from_demo(demo_id, editor_id).unwrap()
    result = demoinfo.demo_get_editors_list(demo_id)
    editor_list = result.unwrap()
    assert editor_list == []