public Kv escapeCharacter(char escapeCharacter) {
        internalProperties
                .putCharacter(TableFormatConstants.FORMAT_ESCAPE_CHARACTER, escapeCharacter);
        return this;
    }
Sets the escape character (disabled by default).

@param escapeCharacter escaping character (e.g. backslash).
inlong-sort/sort-formats/format-row/format-kv/src/main/java/org/apache/inlong/sort/formats/kv/Kv.java