{"ast_node_type":"other","tokens":[{"end":82,"kind":"keyword","start":0,"text":"parse_simple_pat(loop_buf,"}]}
                parse_simple_pat(loop_buf, STG_U, STG_U, Po::None, MdTree::Strong)
            (_, Newline | Whitespace) if loop_buf.starts_with(STG_U) => {
            }