availabilityStarts constant
availabilityStarts [Expects: https://schema.org/Date, https://schema.org/DateTime, https://schema.org/Time]
The beginning of the availability of the product or service included in the offer.
Can be used on: https://schema.org/ActionAccessSpecification, https://schema.org/Demand, https://schema.org/Offer
Implementation
static const availabilityStarts = IriTerm.prevalidated(
'https://schema.org/availabilityStarts',
);