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() {
final detailsString = details.isNotEmpty ? " - Details: $details" : "";
return "[${timestamp.toIso8601String()}] (Step: ${step ?? 'N/A'}) $message$detailsString";
}