FileStat

The creation timestamp in milliseconds elapsed since January 1, 1970 00:00:00 UTC.

The modification timestamp in milliseconds elapsed since January 1, 1970 00:00:00 UTC.

The permissions of the file, e.g. whether the file is readonly.

The size in bytes.

The type of the file, e.g. is a regular file, a directory, or symbolic link to a file.