ML WorkBench How can I make the code automatically complete and format

I would like to use ML WorkBench to write a graph prediction algorithm. Can it install the Nbextension plugin to format the code? After following the steps below, I did not see the Nbextension.How can I make the code automatically complete and formatmake

pip install jupyter_contrib_nbextensions -i
jupyter contrib nbextension install --user
pip install jupyter_nbextensions_configurator
jupyter nbextensions_configurator enable --user

Hi wjx1, jupyter_contrib_nbextensions is for Jupyter Notebook, while ml workbench is based on Jupyter Lab. Based on what says on its github repo: " Due to major differences between the Jupyter Notebook and JupyterLab, the extensions in this repository will not work in JupyterLab. You will find a list of alternative extensions for JupyterLab on jupyterlab-contrib." So you will need to install the related packages from jupyterlab-contrib. Hope this helps. Thanks for using the ml workbench!