code: def setup(app):
      app.add_node(
          embedded_notebook,
          html=(visit_notebook_node, depart_notebook_node),
          latex=(lambda x, y: "", lambda x, y: ""),
      )
      app.add_directive("notebook", Notebook)
  
file_path: glow/docs/extensions/notebook.py
imports: from docutils import nodes
  from docutils.parsers import rst
  from docutils.parsers.rst import directives
  import os
label_desc: Use image node_id 3 for calling a global function with example usage: setup(app) without return types