gtin14 constant
gtin14 [Expects: http://schema.org/Text]
The GTIN-14 code of the product, or the product to which the offer refers. See GS1 GTIN Summary for more details.
Can be used on: http://schema.org/Demand, http://schema.org/Offer, http://schema.org/Product
Implementation
static const gtin14 = IriTerm.prevalidated('http://schema.org/gtin14');