@Override
    public String getName() {
        throw new UnsupportedOperationException("Custom function is used to pass the function script that the user "
                + "has organized, using content as the real function content, so there is no specific function name.");
    }
Function param name

@return The name of this function param
inlong-sort/sort-common/src/main/java/org/apache/inlong/sort/protocol/transformation/function/CustomFunction.java