code: public static List<File> listAttachmentFiles(File... directories) {
          return listFilesByRegex(
                  AllureConfig.newInstance().getAttachmentFileRegex(),
                  directories
          );
      }
docs: Returns list of files matches {@link AllureConfig#attachmentFileRegex} in specified directories
  
  @param directories to find
  @return list of attachment files in specified directories