method Deno.FsFile.prototype.utime
FsFile.prototype.utime(atime: number | Date,mtime: number | Date,): Promise<void>
Changes the access (`atime`) and modification (`mtime`) times of the
file stream resource. Given times are either in seconds (UNIX epoch
time) or as `Date` objects.
```ts
using file = await Deno.open("file.txt", { create: true, write: true });
await file.utime(1556495550, new Date());
```
Promise<void>