{"ast_node_type":"variable","tokens":[{"end":52,"kind":"keyword","start":0,"text":"let"}]}
        let delimiter_kind = subtree.delimiter.kind;
        let close = self.token_id_of(subtree.delimiter.close);
        self.subtree.push(SubtreeRepr { open, close, kind: delimiter_kind, tt: [!0, !0] });