code: function completeRender() {
          var console = window.console;
          var afterRender = root.afterRender;
  
          if (afterRender) {
            afterRender.call(root, root);
          }
  
          // Always emit an afterRender event.
          root.trigger("afterRender", root);
  
          // If there are multiple top level elements and `el: false` is used,
          // display a warning message and a stack trace.
          if (manager.noel && root.$el.length > 1) {
            // Do not display a warning while testing or if warning suppression
            // is enabled.
            if (_.isFunction(console.warn) && !root.suppressWarnings) {
              console.warn("`el: false` with multiple top level elements is " +
                "not supported.");
  
              // Provide a stack trace if available to aid with debugging.
              if (_.isFunction(console.trace)) {
                console.trace();
              }
            }
          }
        }
docs: Reusable function for triggering the afterRender callback and event.