code: function buildNav(members) {
    let nav = '<h2><a href="index.html">Home</a></h2>';
    const seen = {};
    const seenTutorials = {};
  
  
    nav += buildEgg();
    nav += buildMemberNav(members.classes, 'Classes', seen, linkto);
    nav += buildMemberNav(members.modules, 'Modules', {}, linkto);
    nav += buildMemberNav(members.externals, 'Externals', seen, linktoExternal);
    nav += buildMemberNav(members.events, 'Events', seen, linkto);
    nav += buildMemberNav(members.namespaces, 'Namespaces', seen, linkto);
    nav += buildMemberNav(members.mixins, 'Mixins', seen, linkto);
    nav += buildMemberNav(members.tutorials, 'Tutorials', seenTutorials, linktoTutorial);
    nav += buildMemberNav(members.interfaces, 'Interfaces', seen, linkto);
  
    return nav;
  }
docs: Create the navigation sidebar.
  @param {object} members The members that will be used to create the sidebar.
  @param {array<object>} members.classes
  @param {array<object>} members.externals
  @param {array<object>} members.globals
  @param {array<object>} members.mixins
  @param {array<object>} members.modules
  @param {array<object>} members.namespaces
  @param {array<object>} members.tutorials
  @param {array<object>} members.events
  @param {array<object>} members.interfaces
  @return {string} The HTML for the navigation sidebar.