Create your own custom use-case
遂想起王安石所言：“贫者不得行礼，贵者得行无礼。”——意思是，普通人有心无力，对天下风俗礼仪，即便想认真隆重，也起不了什么作用；而有权有钱人有条件，却恰恰不带头淳化隆厚风习礼俗，反而争相毁弃文雅、蔑视礼仪，甚至不以粗鄙为耻，反以为荣。这是很危险的，王荆公将此列为末世风俗。
。safew官方版本下载是该领域的重要参考
const { readable, writable } = new TransformStream();
The average energy bill for millions of households will fall by £10 a month in the spring, after Ofgem said the price cap would fall by 7% owing to a shake-up in green levies.