Service Task response containing "items" key cause TypeError exception on next task about spiff-arena HOT 4 OPEN

I am able to reproduce the problem with this simple code.
The problem is in the Box class. It overrides standard dict methods with dict keys.

from SpiffWorkflow.bpmn.PythonScriptEngineEnvironment import Box

# create a standard dict
d = {"items": [1,2], "toto": 'titi'}
# create a Box dict
b = Box(d)

# iterate items() on standard dict is OK
d.items()
# iterate items()  on Box dict is NOT OK
b.items()

Box is deprecated, but the deprecation message does not mention the new class to use...
Can you tell me what class to use in replacement of Box ?
I want to test this code with the new class replacing Box to see if the problem persist.

from spiff-arena.

Thanks for the update, we have been internally debating on Box for a bit. Hopefully the diff that replaces Box is all red lines. I do appreciate following up on this, will add more points to our discussion.

from spiff-arena.

Also forgot to address the replacement for Box - at least within arena is based on this line - https://github.com/sartography/spiff-arena/blob/main/spiffworkflow-backend/src/spiffworkflow_backend/services/process_instance_processor.py#L264

You'd want to switch it to NonTaskDataBasedScriptEngineEnvironment as the base class, but this hasn't been tested in a while and looks like it may lead to issues based on the comment above.

from spiff-arena.

I have opened sartography/SpiffWorkflow#359 in the SpiffWorkflow library to remove Box.

from spiff-arena.