@Override
  public void actionPerformed(@NotNull AnActionEvent e) {
    Project project = e.getProject();
    DiffRequestChain chain = getDiffRequestChain(e);
    if (chain == null) return;

    DiffManager.getInstance().showDiff(project, chain, DiffDialogHints.DEFAULT);
  }
@Override
  public void actionPerformed(@NotNull AnActionEvent e)