tencent cloud

// 使用 TransformStream 构造得到 ReadableStream 对象
const { readable } = new TransformStream();

// 使用 ReadableStream 对象获取 reader
const reader = readable.getReader({
  mode: 'byob',
});

// readable.locked
readonly locked: boolean;

reader.read(bufferView: ArrayBufferView): Promise<{value: ArrayBufferView, done: boolean}>;

reader.cancel(reason?: string): Promise<string>;

reader.releaseLock(): void;