public StringBuilder appendTo(final StringBuilder builder) {
        builder.append('(');
        //Token{signal=ENCODING, name='blockLength', description='Extra metadata bytes', id=-1, version=0, encodedLength=2, offset=0, componentTokenCount=1, encoding=Encoding{presence=REQUIRED, primitiveType=UINT16, byteOrder=LITTLE_ENDIAN, minValue=null, maxValue=null, nullValue=null, constValue=null, characterEncoding='UTF-8', epoch='null', timeUnit=null, semanticType='null'}}
        builder.append("blockLength=");
        builder.append(blockLength());