@ApiStatus.Internal
  public void setFallbackPresentationText(@NotNull Supplier<String> supplier) {
    Supplier<TextWithMnemonic> original = textWithMnemonicSupplier;
    Supplier<TextWithMnemonic> fallback = getTextWithMnemonic(supplier, true);
    textWithMnemonicSupplier = () -> {
      TextWithMnemonic result = original.get();
      return result == null ? fallback.get() : result;
    };
  }
@ApiStatus.Internal
  public void setFallbackPresentationText(@NotNull Supplier<String> supplier)