{"ast_node_type":"other","tokens":[{"end":94,"kind":"keyword","start":0,"text":"(Some(ClosureKind::FnOnce),"}]}
                        (Some(ClosureKind::FnOnce), ClosureKind::Fn | ClosureKind::FnMut) => {
                        }
                            expected_kind = Some(found_kind)