code: def enable_visual_interface():
      notebook.nbextensions.install_nbextension_python(
          "checklist.viewer", user=True, overwrite=True
      )
      notebook.nbextensions.enable_nbextension_python(
          "checklist.viewer"
      )
  
file_path: checklist/setup.py
imports: from setuptools import setup, find_packages
  from setuptools.command.develop import develop
  from setuptools.command.install import install
  from setuptools.command.bdist_egg import bdist_egg
  from setuptools.command.egg_info import egg_info
  from setuptools.command.build_py import build_py
  from subprocess import check_call
  import sys
  import notebook
label_desc: Use image node_id 1 for calling a global function with example usage: enable_visual_interface() without return types