@VisibleForTesting
  public static boolean isApplicableZippedSkeletonsFileName(@NotNull String prebuiltSkeletonsName, @NotNull String fileName) {
    try {
      return fileName.matches(".*" + prebuiltSkeletonsName + "\\.?\\d*\\.zip");
    } catch (PatternSyntaxException e) {
      return false;
    }
  }
@VisibleForTesting
  public static boolean isApplicableZippedSkeletonsFileName(@NotNull String prebuiltSkeletonsName, @NotNull String fileName)