{"ast_node_type":"other","tokens":[{"end":41,"kind":"keyword","start":0,"text":"ty::ClosureKind::Fn"}]}
                ty::ClosureKind::Fn => {}
            ty::CoroutineClosure(_def_id, args) => match args.as_coroutine_closure().kind() {
                ty::ClosureKind::FnMut => {}