{"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"//"}]}
                // goal functions similarly to the old `ClosureKind` predicate, and ensures that
                // generator's upvars. We do this using the `AsyncFnKindHelper`, which as a trait
                // the goal kind <= the closure kind. As a projection `AsyncFnKindHelper::Upvars`