code: def touch_example_backreferences(
      app, what, name, obj, options, lines
  ):
      # generate empty examples files, so that we don't get
      # inclusion errors if there are no examples for a class / module
      examples_path = os.path.join(
          app.srcdir, "modules", "generated", f"{name}.examples"
      )
      if not os.path.exists(examples_path):
          # touch file
          open(examples_path, "w").close()
  
file_path: nilearn/doc/conf.py
imports: import os
  import re
  import sys
  import sphinx
  from nilearn._utils import compare_version
  from github_link import make_linkcode_resolve
  import nilearn
label_desc: Use image node_id 1 for calling a global function with example usage: touch_example_backreferences(app, what, name, obj, options, lines) without return types