purchaseType constant
IriTerm
const purchaseType
IRI for schema:purchaseType [Expects: https://schema.org/PurchaseType]
Optional. The type of purchase the consumer must make in order to qualify for this incentive.
Can be used on: https://schema.org/FinancialIncentive
Implementation
static const purchaseType = const IriTerm('https://schema.org/purchaseType');