rename abstract method

Future<Link> rename(String newPath)

Renames this link. Returns a Future<Link> that completes with a Link instance for the renamed link.

If newPath identifies an existing link, that link is replaced. If newPath identifies an existing file or directory, the operation fails and the future completes with an exception.

Source

Future<Link> rename(String newPath);

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Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/1.24.3/dart-io/Link/rename.html