Please note the following warning:

Important:

There are known incompatibilities between InterSystems IRIS and Python 3.13, so you are advised to avoid Python 3.13 at this time. This issue will be addressed in an upcoming version of InterSystems IRIS.

That's right, the generated code lacks $GET or initial initialization of the variable.

Yes, these are fields that will either be inserted or updated.

PS:
In fact, the following query should work correctly:

INSERT OR UPDATE myTable SET name='Omer',  counter = NVL(counter,0) + 1 

But unfortunately, the SQL engine generates code where an undefined variable is accessed, so the <UNDEFINED> error occurs.
Try contacting WRC for a fix.

By the way, in SQL Data Lens, which works via JDBC, it is possible to see the source code of classes:

https://sqldatalens.com/class-viewer/

Class dc.test [ Abstract ]
{

ClassMethod Stream2BytesArray1(stream As %Stream.Object) As %SYS.Python [ Language = python ]
{
  stream.Rewind()
  s = ""
  while not stream.AtEnd:
    r = stream.Read(1000000)
    s += r
  b = bytearray()
  b.extend(map(ord, s))
  return b
}

ClassMethod Stream2BytesArray2(stream As %Stream.Object) As %SYS.Python [ Language = python ]
{
  import iris

  maxlen = iris.system.SYS.MaxLocalLength()
  b = bytearray()

  stream.Rewind()
  while not stream.AtEnd:
    b.extend(iris._SYS.Python.Bytes(stream.Read(maxlen)))
  return b
}

ClassMethod Stream2BytesArray3(stream As %Stream.Object) As %SYS.Python
{
  set maxlen = $$$MaxLocalLength,
      b = $SYSTEM.Python.Builtins().bytearray()

  do stream.Rewind()
  while 'stream.AtEnd {do b.extend($system.Python.Bytes(stream.Read(maxlen)))}
  return b
}

/// d ##class(dc.test).Test()
ClassMethod Test()
{
  s builtin=$system.Python.Builtins(),
    maxstr=$tr($j("",$$$MaxStringLength)," ","0"),
    stream=##class(%GlobalBinaryStream).%New()
  f i=1:1:7 d stream.Write(maxstr)
  w "Stream.Size=",stream.Size,!
  
  f n=1:1:3 {
    s fn="Stream2BytesArray"_n,t=$zh,r=$CLASSMETHOD($this,fn,stream),t=($zh-t)_" s."
    w $$$FormatText("%1 len(r)=%2 time=%3",fn,builtin.len(r),t),!
  }
}

}

USER>d ##class(dc.test).Test()
Stream.Size=25488008
Stream2BytesArray1 len(r)=25488008 time=.752708 s.
Stream2BytesArray2 len(r)=25488008 time=.14895 s.
Stream2BytesArray3 len(r)=25488008 time=.080003 s.

The numbers speak for themselves.

ClassMethod Stream2BytesArray(stream As %Stream.Object) As %SYS.Python
{
  set builtin = $SYSTEM.Python.Builtins()

  set b = builtin.bytearray()

  do stream.Rewind()
  while 'stream.AtEnd {
    set r = $system.Python.Bytes(stream.Read($$$MaxLocalLength))
    do b.extend(r)
  }
  quit b
}

Here you can find version 3.10.2:

https://repo.maven.apache.org/maven2/com/intersystems/intersystems-jdbc/

• Parallel Query Processing Ignored
• Parallel Query Processing for a Specific Query

And don't forget about AutoParallelThreshold

It seems to me that in this case it would be advisable to use a comparison of stream hashes, using, for example, the SHA3HashStream method.

• XData block (MimeType) The default is text/xml
• Encoding Translation

Try this:

XData Script
{
<script type="text/javascript">
var v1=1;
var v2=2;
function Colors() {
  if (v1=1&amp;&amp;v2=2) {
    alert('&amp;&lt;&gt;&quot;');
  }
}
</script>
}

Judging by this code, I probably did not fully understand the conditions of the task.
So:

1. the source code of the method = " f i=0,27,0:1:94 d %code.Write($c(i+32))
   ", size = 42
2. the following characters are not found in the source code of the method:
   

   !"#&'*-/568;<>?@ABCDEFGHIJKLMNOPQRSTUVXYZ[\]^_`abghjklmnpqsuvwxyz{|}~

3. the method should print the characters from point 2
4. I did not find it in the task conditions [CodeMode = objectgenerator]

Where did I go wrong?

I would like to draw your attention to a number of points:

• this code will work correctly only when the compilation flag "k" is enabled, otherwise $TEXT will not return anything.
  

  k - Keep source. When this flag is set, source code of
  generated routines will be kept.

• this code will not work correctly in Caché, because there the label name will be "zascii", non "ascii"
• if you look at the generated INT code, you can see the "}" character at the end, which will return $t(ascii+1), which will lead to an incorrect result
  

  ascii() methodimpl {
   f i=32:1:126 w:$t(ascii+1)'[$c(i) *i }

In addition to the above: Dynamic SQL Using Older Result Set Classes