toString method
A string representation of this object.
Some classes have a default textual representation,
often paired with a static parse function (like int.parse).
These classes will provide the textual representation as
their string representation.
Other classes have no meaningful textual representation
that a program will care about.
Such classes will typically override toString to provide
useful information when inspecting the object,
mainly for debugging or logging.
Implementation
@override
String toString() {
return 'Metadata(rights: $rights, contributor: $contributor, creator: $creator, publisher: $publisher, title: $title, date: $date, language: $language, subject: $subject, description: $description, identifier: $identifiers)';
}