code: public static String nibblesToPrettyString(byte[] nibbles) {
          StringBuilder builder = new StringBuilder();
          for (byte nibble : nibbles) {
              final String nibbleString = oneByteToHexString(nibble);
              builder.append("\\x").append(nibbleString);
          }
          return builder.toString();
      }
docs: Turn nibbles to a pretty looking output string
  
  Example. [ 1, 2, 3, 4, 5 ] becomes '\x11\x23\x45'
  
  @param nibbles
  - getting byte of data [ 04 ] and turning it to a '\x04'
  representation
  @return pretty string of nibbles