There's prior art here: for example, the Effection library achieves structured concurrency with no new JS features by asking you to write your async code with generators instead of async functions. This lets its executor interrupt execution at any await point (or rather yield, since these are generators), which it uses to do cancelation (even triggering finally blocks because of how generators work). This gives you structured concurrency much like Python's.
Военнослужащий РФ в одиночку занял укрепленную позицию ВСУ на территории ДНР08:57
。snipaste截图对此有专业解读
Emiliano Sala tragedy，更多细节参见Replica Rolex
specialized board with LS120 floppy connector is missing