orderQuantity constant
orderQuantity [Expects: http://schema.org/Number, http://schema.org/QuantitativeValue]
The number of the item ordered. If the property is not set, assume the quantity is one.
Can be used on: http://schema.org/OrderItem
Implementation
static const orderQuantity = IriTerm.prevalidated(
'http://schema.org/orderQuantity',
);