Updates the link. Returns a Future<Link>
that completes with the link when it has been updated. Calling update on a non-existing link will complete its returned future with an exception.
Future<Link> update(String target);
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dart.dev/stable/2.5.0/dart-io/Link/update.html