@NotNull
  @Override
  public QuickMergeContentsVariants selectMergeVariant() {
    QuickMergeWayOptionsPanel panel = new QuickMergeWayOptionsPanel();
    DialogBuilder builder = new DialogBuilder(myProject);

    builder.title(message("dialog.title.select.merge.variant")).centerPanel(panel.getMainPanel()).removeAllActions();
    panel.setWrapper(builder.getDialogWrapper());
    builder.show();

    return panel.getVariant();
  }
@NotNull
  @Override
  public QuickMergeContentsVariants selectMergeVariant()