Is there a way to implement save action in mime extension?

[westurner]

Here are the docs and cookiecutters for each type of extension:

• https://jupyterlab.readthedocs.io/en/stable/extension/extension_dev.html#cookiecutters
  • GitHub - jupyterlab/mimerender-cookiecutter-ts: Cookie cutter for JupyterLab mimerenderer extensions using TypeScript
  • GitHub - jupyterlab/extension-cookiecutter-ts: A cookiecutter recipe for JupyterLab extensions in Typescript
• https://jupyterlab.readthedocs.io/en/stable/extension/extension_tutorial.html#initialize-the-project-from-a-cookiecutter