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() =>
'NotificationData{_title: $_title, _content: $_content, _bigTitle: $_bigTitle, _bigContent: $_bigContent, _summary: $_summary, _imageUrl: $_imageUrl, _iconUrl: $_iconUrl, _customContent: $_customContent, buttons: $_buttons, clickedButton: $_clickedButton}';