Memento constructor
Implementation
factory Memento({
_i2.List<_i2.String> Function()? keys,
_i2.Future<_i2.dynamic> Function(
_i2.String, [
_i2.dynamic,
])? update,
}) =>
Memento._(
keys: keys == null ? null : _i5.allowInterop(keys),
update: update == null ? null : _i5.allowInterop(update),
);