@NotNull
  static Storage deprecatedCopy(@NotNull Storage original) {
    //noinspection deprecation
    return new StorageImpl(original.value(), original.file(), true, original.exclusive(), original.exportable(),
                           original.roamingType(), original.stateSplitter(), original.storageClass(), original.useSaveThreshold());
  }
@NotNull
  static Storage deprecatedCopy(@NotNull Storage original)