Hey there,

Since the recent “research” image update for lean, trying to run the following command throws an exception:

lean research <PROJECT_NAME> --update                                    
Pulling quantconnect/research:latest...
latest: Pulling from quantconnect/research
Digest: sha256:738018cd183913360f1d9ea06686097cdd8b26c6021f9a231fb5d17a88306344
Status: Image is up to date for quantconnect/research:latest
docker.io/quantconnect/research:latest
Starting JupyterLab, access in your browser at localhost:8888
Traceback (most recent call last):
  File "/opt/miniforge3/bin/jupyter-lab", line 6, in <module>
    from jupyterlab.labapp import main
  File "/opt/miniforge3/lib/python3.6/site-packages/jupyterlab/labapp.py", line 15, in <module>
    from jupyter_server.serverapp import flags
  File "/opt/miniforge3/lib/python3.6/site-packages/jupyter_server/serverapp.py", line 83, in <module>
    from jupyter_server.services.sessions.sessionmanager import SessionManager
  File "/opt/miniforge3/lib/python3.6/site-packages/jupyter_server/services/sessions/sessionmanager.py", line 22, in <module>
    from jupyter_server.traittypes import InstanceFromClasses
  File "/opt/miniforge3/lib/python3.6/site-packages/jupyter_server/traittypes.py", line 7, in <module>
    from traitlets.utils.descriptions import describe
ModuleNotFoundError: No module named 'traitlets.utils.descriptions'