@Nullable
  public Runnable getPostRenameCallback(@NotNull PsiElement element,
                                        @NotNull String newName,
                                        @NotNull RefactoringElementListener elementListener) {
    return null;
  }
@Nullable
  public Runnable getPostRenameCallback(@NotNull PsiElement element,
                                        @NotNull String newName,
                                        @NotNull RefactoringElementListener elementListener)