stat method
Gets file stats asynchronously.
Implementation
@override
Future<FileStat> stat(String fsPath) async {
// Use dart:io FileStat
final s = await File(fsPath).stat();
return FileStat(
size: s.size,
modified: s.modified,
mtimeMs: s.modified.millisecondsSinceEpoch.toDouble(),
type: s.type,
);
}