copy method
Returns a copy of this object.
The copy is not affected by destroy.
Implementation
@override
SimpleKeyPairData copy() {
if (hasBeenDestroyed) {
throw StateError('Private key has been destroyed');
}
final bytes = _bytes;
if (bytes.hasBeenDestroyed) {
throw _destroyedError();
}
return SimpleKeyPairData(
Uint8List.fromList(bytes),
publicKey: publicKey,
type: type,
debugLabel: debugLabel,
);
}