public StringBuilder appendTo(final StringBuilder builder) {
            builder.append('(');
            //Token{signal=BEGIN_VAR_DATA, name='envKey', description='null', id=51, version=0, encodedLength=0, offset=0, componentTokenCount=6, encoding=Encoding{presence=REQUIRED, primitiveType=null, byteOrder=LITTLE_ENDIAN, minValue=null, maxValue=null, nullValue=null, constValue=null, characterEncoding='null', epoch='unix', timeUnit=nanosecond, semanticType='null'}}
            builder.append("envKey=");
            builder.append(envKey());