private static @Nullable TouchbarActionCustomizations getClientProperty(@NotNull AnAction action, boolean forceCreate) {
    TouchbarActionCustomizations result = action.getTemplatePresentation().getClientProperty(ACTION_CUSTOMIZATIONS_KEY);
    if (forceCreate && result == null) {
      action.getTemplatePresentation().putClientProperty(ACTION_CUSTOMIZATIONS_KEY, result = new TouchbarActionCustomizations());
    }
    return result;
  }
private static @Nullable TouchbarActionCustomizations getClientProperty(@NotNull AnAction action, boolean forceCreate)