{"ast_node_type":"other","tokens":[{"end":86,"kind":"keyword","start":0,"text":"//"}]}
            // would implicitly have a closure in its body that would be the parent of
            // i.e. `async fn foo<'a>() { let a = [(); { 1 + 2 }]; bar().await() }`
            // the `{ 1 + 2 }` anon const. This closure's generics is simply a witness