public SendRawEmailResult unmarshall(StaxUnmarshallerContext context) throws Exception {
    SendRawEmailResult sendRawEmailResult = new SendRawEmailResult();
    int originalDepth = context.getCurrentDepth();
    int targetDepth = originalDepth + 1;

    if (context.isStartOfDocument()) targetDepth += 2;

    while (true) {
      int xmlEvent = context.nextEvent();
      if (xmlEvent == XmlPullParser.END_DOCUMENT) return sendRawEmailResult;

      if (xmlEvent == XmlPullParser.START_TAG) {
        if (context.testExpression("MessageId", targetDepth)) {
          sendRawEmailResult.setMessageId(StringStaxUnmarshaller.getInstance().unmarshall(context));
          continue;
        }
      } else if (xmlEvent == XmlPullParser.END_TAG) {
        if (context.getCurrentDepth() < originalDepth) {
          return sendRawEmailResult;
        }
      }
    }
  }
  public SendRawEmailResult unmarshall(StaxUnmarshallerContext context) throws Exception {
    SendRawEmailResult sendRawEmailResult = new SendRawEmailResult();
    int originalDepth = context.getCurrentDepth();
    int targetDepth = originalDepth + 1;

    if (context.isStartOfDocument()) targetDepth += 2;

    while (true) {
      XMLEvent xmlEvent = context.nextEvent();
      if (xmlEvent.isEndDocument()) return sendRawEmailResult;

      if (xmlEvent.isAttribute() || xmlEvent.isStartElement()) {

        if (context.testExpression("MessageId", targetDepth)) {
          sendRawEmailResult.setMessageId(StringStaxUnmarshaller.getInstance().unmarshall(context));
          continue;
        }
      } else if (xmlEvent.isEndElement()) {
        if (context.getCurrentDepth() < originalDepth) {
          return sendRawEmailResult;
        }
      }
    }
  }