class DebugUtils {

    public static String payload2Str(ByteBuf content) {<FILL_FUNCTION_BODY>}

    private DebugUtils() {
    }
}

        final int readerPin = content.readableBytes();
        final String result = content.toString(StandardCharsets.UTF_8);
        content.readerIndex(readerPin);
        return result;
    
<no_super_class>