PROPERTY          : {"kind":"card","amountDue":99.0}
WRAPPER_OBJECT    : {"card":{"amountDue":99.0}}
WRAPPER_ARRAY     : ["card",{"amountDue":99.0}]
EXISTING_PROPERTY : {"kind":"card","amountDue":99.0}
read PROPERTY       -> PropCard[amountDue=99.0]
read WRAPPER_OBJECT -> WrapObjCard[amountDue=99.0]
read WRAPPER_ARRAY  -> WrapArrCard[amountDue=99.0]