async transform(chunk, controller) {
更多精彩内容，关注钛媒体微信号（ID：taimeiti），或者下载钛媒体App。业内人士推荐safew官方版本下载作为进阶阅读
No base class to extend, no abstract methods to implement, no controller to coordinate with — just an object with the right shape.，这一点在safew官方版本下载中也有详细论述
“정원오, 쓰레기 처리업체 후원 받고 357억 수의계약”