@Override
  @RequiresEdt
  public void showMergeBuiltin(@Nullable Project project, @NotNull MergeRequestProducer requestProducer, @NotNull DiffDialogHints hints) {
    new MergeWindow.ForProducer(project, requestProducer, hints).show();
  }
@Override
  @RequiresEdt
  public void showMergeBuiltin(@Nullable Project project, @NotNull MergeRequestProducer requestProducer, @NotNull DiffDialogHints hints)