Jupyterlab
https://gyazo.com/4fa76388e6e0929f1c7d33d62f88a8dd
JupyterLabのすゝめ - Qiita
スニペット
Language Server Protocol integration for Jupyter(Lab)
Jupyter notebook snippets menu — jupyter_contrib_nbextensions 0.5.0 documentation
ipython-contrib/jupyter_contrib_nbextensions: A collection of various notebook extensions for Jupyter