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() =>
"EpubMetadata { $titles, $creators, $subjects, $description, $publishers, $contributors, $dates, $types, $formats, $identifiers, $sources, $languages, $relations, $coverages, $rights, $metaItems }";