code: def setup(app):
      app.add_css_file("style.css")
  
file_path: celer/doc/conf.py
imports: import os
  import sys
  import warnings
  import sphinx_gallery
  from distutils.version import LooseVersion
  import matplotlib
  from github_link import make_linkcode_resolve
  from celer import __version__
label_desc: Use image node_id 1 for calling a global function with example usage: setup(app) without return types