{"ast_node_type":"other","tokens":[{"end":31,"kind":"keyword","start":0,"text":"tts.next();"}]}
                    tts.next();
                if let Some(TtElement::Subtree(_, mut tt_iter)) = tts.peek() {
                    if let Some(TtElement::Leaf(tt::Leaf::Literal(lit))) = tt_iter.next() {