public static ByteString bytesDefaultValue(String bytes)
    {
        return new ByteString(byteArrayDefaultValue(bytes));
    }
Helper called by generated code to construct default values for bytes fields.
<p>
This is a lot like {@link #stringDefaultValue}, but for bytes fields. In this case we only need the second of the
two hacks -- allowing us to embed raw bytes as a string literal with ISO-8859-1 encoding.
protostuff-api/src/main/java/io/protostuff/ByteString.java