docs: public static Function<File, Iterable<String>> toLinesFunction(final Charset charset) {
      return new Function<File, Iterable<String>>() {
        @Override
        public Iterable<String> apply(final File input) {
          try {
            return Files.readLines(input, charset);
          } catch (IOException e) {
            e.printStackTrace();
            throw new RuntimeException(e);
          }
        }
      };
    }