path{string|Buffer|URL}atime{number|string|Date}mtime{number|string|Date}callback{Function}err{Error}
Changes the access and modification times of a file in the same way as
[fs.utimes()][], with the difference that if the path refers to a symbolic
link, then the link is not dereferenced: instead, the timestamps of the
symbolic link itself are changed.
No arguments other than a possible exception are given to the completion callback.
