bytesIn.writeByte(0x40) // Literal indexed
    bytesIn.writeByte(0x88) // Literal name Huffman encoded 8 bytes
    // decodes to custom-key which is length 10
    bytesIn.write("25a849e95ba97d7f".decodeHex())
    bytesIn.writeByte(0x89) // Literal value Huffman encoded 9 bytes
    // decodes to custom-value which is length 12
    bytesIn.write("25a849e95bb8e8b4bf".decodeHex())
  }