chore: add triple-slash ref to asynciterable (#5807)
chore: add triple-slash ref to asynciterable (#5807)

Closes #5708
martinsik/rxjs,ReactiveX/RxJS,martinsik/rxjs,ReactiveX/RxJS,ReactiveX/RxJS,martinsik/rxjs,ReactiveX/rxjs,martinsik/rxjs,ReactiveX/rxjs,benlesh/RxJS,ReactiveX/RxJS,ReactiveX/rxjs,ReactiveX/rxjs,benlesh/RxJS,benlesh/RxJS,benlesh/RxJS