function tableOfContents() {
  var elements = document.getElementsByClassName('kg-toggle-card');

  for (var i = 0; i < elements.length; i++) {
    if (elements[i].querySelector('.kg-toggle-content').hasChildNodes()) continue;

    const div = document.createElement('div');
    div.className = 'toc';
    elements[i].querySelector('.kg-toggle-content').appendChild(div);

    tocbot.init({
      tocSelector: '.toc',
      contentSelector: '.gh-content',
      hasInnerContainers: true,
      headingSelector: 'h1, h2, h3, h4, h5, h6',
      collapseDepth: 3,
      ignoreSelector: '.m-submenu-title, .kg-toggle-heading-text',
    });

    return;
  }
}

tableOfContents();