{"ast_node_type":"other","tokens":[{"end":42,"kind":"keyword","start":0,"text":"ClosureKind::Coroutine(_)"}]}
            ClosureKind::Coroutine(_) => {
            ClosureKind::Closure => &["<closure_kind>", "<closure_signature>", "<upvars>"][..],
                &["<coroutine_kind>", "<resume_ty>", "<yield_ty>", "<return_ty>", "<upvars>"][..]