Map, MapEnumerator, pack/unpack using XML

static void testMapXml(Args _args)
{
    Map             map = new Map(Types::String, Types::Record);
    MapEnumerator   me;
    CustAccount     custAccount = '1001';
    CustTable       custTable   = CustTable::find(custAccount);
    container       cnt;
    str             xml;
    XmlDocument     xmlDocument;

    if (!map.exists(custAccount))
    {
        map.insert(custAccount, custTable);
    }

    if (map.elements())
    {
        me = map.getEnumerator();
        while (me.moveNext())
        {
            custAccount = me.currentKey();
            custTable   = me.currentValue();
        }
    }

    // pack/unpack Map to/from container
    cnt = map.pack();
    map = Map::create(cnt);

    // pack/unpack Map to/from XML
    xml         = map.xml();
    xmlDocument = XmlDocument::newXml(xml);
    map         = Map::createFromXML(xmlDocument.root() as XmlNode);
}