schemahttpExpires constant
expires from schemahttp vocabulary [Expects: http://schema.org/Date, http://schema.org/DateTime]
Date the content expires and is no longer useful or available. For example a {VideoObject
} or {NewsArticle
} whose availability or relevance is time-limited, a {ClaimReview
} fact check whose publisher wants to indicate that it may no longer be relevant (or helpful to highlight) after some date, or a {Certification
} the validity has expired.
Can be used on: http://schema.org/Certification, http://schema.org/CreativeWork
Implementation
static const schemahttpExpires = IriTerm.prevalidated(
'http://schema.org/expires',
);