public static Map<String, String> parseAttr(String attr) {
        return splitKv(
                attr,
                INLONGMSG_ATTR_ENTRY_DELIMITER,
                INLONGMSG_ATTR_KV_DELIMITER,
                null,
                null);
    }
A utility class for parsing InLongMsg {@link}.
inlong-sort/sort-formats/format-rowdata/format-inlongmsg-rowdata-base/src/main/java/org/apache/inlong/sort/formats/inlongmsg/InLongMsgUtils.java