code: function(view, force) {
      var parentViews;
      // Shorthand the managers for easier access.
      var manager = view.__manager__;
      var rentManager = manager.parent && manager.parent.__manager__;
      // Test for keep.
      var keep = typeof view.keep === "boolean" ? view.keep : view.options.keep;
  
      // In insert mode, remove views that do not have `keep` attribute set,
      // unless the force flag is set.
      if ((!keep && rentManager && rentManager.insert === true) || force) {
        // Clean out the events.
        LayoutManager.cleanViews(view);
  
        // Since we are removing this view, force subviews to remove
        view._removeViews(true);
  
        // Remove the View completely.
        view.$el.remove();
  
        // Cancel any pending renders, if present.
        view._cancelQueuedRAFRender();
  
        // Bail out early if no parent exists.
        if (!manager.parent) { return; }
  
        // Assign (if they exist) the sibling Views to a property.
        parentViews = manager.parent.views[manager.selector];
  
        // If this is an array of items remove items that are not marked to
        // keep.
        if (_.isArray(parentViews)) {
          // Remove duplicate Views.
          _.each(_.clone(parentViews), function(view, i) {
            // If the managers match, splice off this View.
            if (view && view.__manager__ === manager) {
              aSplice.call(parentViews, i, 1);
            }
          });
          if (_.isEmpty(parentViews)) {
            manager.parent.trigger("empty", manager.selector);
          }
          return;
        }
  
        // Otherwise delete the parent selector.
        delete manager.parent.views[manager.selector];
        manager.parent.trigger("empty", manager.selector);
      }
    }
docs: Remove a single nested View.