No custom ReadableStream class with hidden internal state. A readable stream is just an AsyncIterable. You consume it with for await...of. No readers to acquire, no locks to manage.
针对此类家庭的亲权认定问题，邹露璐提出，未来亟须通过专门的立法完善、执法规范与司法确权程序协同发力，厘清委托父母与子女间的法律关系，从制度根源上破解代孕子女的身份认定难题。，详情可参考夫子
HTMLMediaElement — WHATWG HTML Living Standard，这一点在Line官方版本下载中也有详细论述
The readable is just an async iterable. You can pass it to any function that expects one, including Stream.text() which collects and decodes the entire stream.，更多细节参见同城约会