why not dict, too

spiffworkflow-backend/src/spiffworkflow_backend/config/default.py

@@ -2,6 +2,10 @@
 import re
 from os import environ
 
+# Consider: https://flask.palletsprojects.com/en/2.2.x/config/#configuring-from-environment-variables
+#   and from_prefixed_env(), though we want to ensure that these variables are all documented, so that
+#   is a benefit of the status quo and having them all in this file explicitly.
+
 SPIFFWORKFLOW_BACKEND_BPMN_SPEC_ABSOLUTE_DIR = environ.get(
     "SPIFFWORKFLOW_BACKEND_BPMN_SPEC_ABSOLUTE_DIR"
 )

spiffworkflow-backend/src/spiffworkflow_backend/services/process_instance_processor.py

@@ -293,6 +293,7 @@ class CustomBpmnScriptEngine(PythonScriptEngine):  # type: ignore
             "enumerate": enumerate,
             "format": format,
             "list": list,
+            "dict": dict,
             "map": map,
             "pytz": pytz,
             "sum": sum,