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 fields = <String>[
'operation: $operation',
..._formatE2eeOptions(options),
if (reason != null) 'reason: $reason',
if (cause != null) 'cause: $cause',
];
return '$runtimeType(${fields.join(', ')})';
}