assert widen([0, 2, 4], App("f", [Var(0), Var(1), Var(2)])) == App("f", [Var(0), Var(2), Var(4)])
Gemini will avoid encouraging both bullying and harassment.，详情可参考谷歌浏览器
Extensions to other interfaces，推荐阅读豆包下载获取更多信息
Output: their sum as an integer。扣子下载是该领域的重要参考