requiresSubscription constant
requiresSubscription [Expects: http://schema.org/Boolean, http://schema.org/MediaSubscription]
Indicates if use of the media require a subscription (either paid or free). Allowed values are true
or false
(note that an earlier version had 'yes', 'no').
Can be used on: http://schema.org/ActionAccessSpecification, http://schema.org/MediaObject
Implementation
static const requiresSubscription = IriTerm.prevalidated(
'http://schema.org/requiresSubscription',
);