code: function encodeAttachmentMITTransfer(buffer, offset, symbol, address) {
      offset = buffer.writeUInt8(Constants.MIT.STATUS.TRANSFER, offset);
      offset += encodeString(buffer, symbol, offset);
      offset += encodeString(buffer, address, offset);
      return offset;
  }
docs: Helper function to encode the attachment for a new MIT.
  @param {Buffer} buffer
  @param {Number} offset
  @param {String} symbol
  @param {String} address
  @returns {Number} New offset
  @throws {Error}