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() =>
'"$discriminatorValue" is not a valid discriminator value for type "${superclass.reflectedType}".\n\n'
'Valid values are:\n${validDiscriminators.map((x) => ' - $x').join(',\n')}';