contactOption constant
IRI for schemahttp:contactOption [Expects: http://schema.org/ContactPointOption]
An option available on this contact point (e.g. a toll-free number or support for hearing-impaired callers).
Can be used on: http://schema.org/ContactPoint
Implementation
static const contactOption = IriTerm.prevalidated(
'http://schema.org/contactOption',
);