code: function SymEncryptedAEADProtected() {
    this.tag = enums.packet.symEncryptedAEADProtected;
    this.version = VERSION;
    this.cipherAlgo = null;
    this.aeadAlgorithm = 'eax';
    this.aeadAlgo = null;
    this.chunkSizeByte = null;
    this.iv = null;
    this.encrypted = null;
    this.packets = null;
  }
docs: A one-octet version number of the data packet. 
  Implementation of the Symmetrically Encrypted Authenticated Encryption with
  Additional Data (AEAD) Protected Data Packet
  
  {@link https://tools.ietf.org/html/draft-ford-openpgp-format-00#section-2.1}:
  AEAD Protected Data Packet
  @memberof module:packet
  @constructor