I am hitting an issue when trying to unpickle and internal class object inside of a deployed prefect flow. It is raising the following error:

Can't get attribute 'Document' on <module 'prefect.engine' from '/app/.venv/lib/python3.11/site-packages/prefect/engine.py'>

This runs fine in prefect locally but not once deployed with a docker image. I am importing the

Document

class at the top of my file containing the flow. Any ideas why this might be happening?

hi @Nelson Griffiths - this is odd. it looks like its thinking your document class is in

prefect.engine

? can you show your import? im wondering if there is some namespace conflict

Basically this:

from my_private_library.tools.namespace import Document

hmm im not sure

Let me see if I can get that real quick