I think the Python list, yeah, the email list gateway existed as well.
var tasks []task
，这一点在下载安装汽水音乐中也有详细论述
Андрей Стрельцов (Редактор отдела «Спорт»)
This overhead is mandated by the spec's reliance on promises for buffer management, completion, and backpressure signals. While some of it is implementation-specific, much of it is unavoidable if you're following the spec as written. For high-frequency streaming – video frames, network packets, real-time data – this overhead is significant.
The result from Step 2 is a high-level route – a sequence of shortcuts connecting border points.