Printing response of Python SDK list_workflows methods returns an error

[rajaie-sg]

Pre-requisites

• I have double-checked my configuration
• I can confirm the issues exists when I tested with :latest
• I'd like to contribute the fix myself (see contributing guide)

What happened/what you expected to happen?

I expect to be able to print the response of the list_workflows method in the Python SDK successfully.

import time
import argo_workflows
from argo_workflows.api import workflow_service_api
with argo_workflows.ApiClient(self.configuration) as api_client:
            api_instance = workflow_service_api.WorkflowServiceApi(api_client)
            api_response = api_instance.list_workflows(self._NAMESPACE, _check_return_type=False)
            print(api_response)

  File "/Users/rajaiealkorani/repos/crawl/venv/lib/python3.9/site-packages/argo_workflows/model_utils.py", line 175, in __repr__
    return self.to_str()
  File "/Users/rajaiealkorani/repos/crawl/venv/lib/python3.9/site-packages/argo_workflows/model_utils.py", line 516, in to_str
    return pprint.pformat(self.to_dict())
  File "/Users/rajaiealkorani/repos/crawl/venv/lib/python3.9/site-packages/argo_workflows/model_utils.py", line 512, in to_dict
    return model_to_dict(self, serialize=False)
  File "/Users/rajaiealkorani/repos/crawl/venv/lib/python3.9/site-packages/argo_workflows/model_utils.py", line 1661, in model_to_dict
    res.append(model_to_dict(v, serialize=serialize))
  File "/Users/rajaiealkorani/repos/crawl/venv/lib/python3.9/site-packages/argo_workflows/model_utils.py", line 1633, in model_to_dict
    if model_instance._composed_schemas:
AttributeError: 'dict' object has no attribute '_composed_schemas'

This error doesn't show up if there are 0 workflows.

Version

v6.4.1 of the Python SDK

Paste a small workflow that reproduces the issue. We must be able to run the workflow; don't enter a workflows that uses private images.

the presence of any workflows (running, failed, completed, etc...) causes this issue

Logs from the workflow controller

not relevant

Logs from in your workflow's wait container

not relevant

[rajaie-sg]

Upon further inspection, it seems the "print(api_response)" is what's causing the error. I am just following the example from https://raw.githubusercontent.com/argoproj/argo-workflows/master/sdks/python/client/docs/WorkflowServiceApi.md