@NotNull
  @Override
  public DiffRequestPanel createRequestPanel(@Nullable Project project, @NotNull Disposable parent, @Nullable Window window) {
    DiffRequestPanelImpl panel = new DiffRequestPanelImpl(project, window);
    Disposer.register(parent, panel);
    return panel;
  }
@NotNull
  @Override
  public DiffRequestPanel createRequestPanel(@Nullable Project project, @NotNull Disposable parent, @Nullable Window window)