presto-cli/src/main/java/io/prestosql/cli/AlignedTablePrinter.java/AlignedTablePrinter/createHexPairs
class AlignedTablePrinter:    private static Iterable<String> createHexPairs(byte[] bytes)
    {
        // hex dump: "616263"
        String hexDump = base16().lowerCase().encode(bytes);

        // hex pairs: ["61", "62", "63"]
        return HEX_SPLITTER.split(hexDump);
    }