gtin property
//en.wikipedia.org/wiki/Global_Trade_Item_Number) for more details.
Left-padding of the gtin values is not required or encouraged. The
Schemagtin
property generalizes the earlier Schemagtin8
,
Schemagtin12
, Schemagtin13
, and Schemagtin14
properties.
Note also that this is a definition for how to include GTINs in Schema.org data, and not a definition of GTINs in general - see the GS1 documentation for authoritative details.
Implementation
String? gtin;