private void logToggle(TreeExpansionEvent event, boolean expanded) {
        AbstractTreeNode<?> treeNode = getLast(event.getPath());
        if (treeNode == null) return;
        boolean isRoot = myModel.getRoot() == treeNode;
        CoverageLogger.logTreeNodeExpansionToggle(myProject, isRoot, expanded);
      }
private void logToggle(TreeExpansionEvent event, boolean expanded)