docs: def setup(app):
      """
      Sphinx extension to update the rendering context with the feedback form URL.
  
      Arguments:
          app (Sphinx): Application object for the Sphinx process
  
      Returns:
          a dictionary of metadata (http://www.sphinx-doc.org/en/stable/extdev/#extension-metadata)
      """
      event = 'html-page-context' if six.PY3 else b'html-page-context'
      app.connect(event, update_context)
  
      return {
          'parallel_read_safe': True,
          'parallel_write_safe': True,
          'version': __version__,
      }