{"ast_node_type":"other","tokens":[{"end":13,"kind":"keyword","start":0,"text":"}"}]}
            }
                parse_simple_pat(loop_buf, CMT_S, CMT_E, Po::TrimNoEsc, MdTree::Comment)
            (true, Newline) if loop_buf.starts_with(CBK) => Some(parse_codeblock(loop_buf)),