小鹏第二代 VLA 进入 L4 常态化测试，量产「近在眼前」
A difficulty here, however, is that the TransformStreamDefaultController does not have a ready promise mechanism like Writers do; so the TransformStream implementation would need to implement a polling mechanism to periodically check when controller.desiredSize becomes positive again.
，更多细节参见爱思助手下载最新版本
From the Claude Code quickstart.。关于这个话题，Line官方版本下载提供了深入分析
end() { closed = true; return totalBytes; },