format method
Implementation
@override
List<String> format(dynamic log) {
final File file = log;
return [
'File name: ${file.absolute.path}',
'File exists: ${file.existsSync()}',
'File size: ${file.lengthSync()}',
'File last accessed: ${file.lastAccessedSync().toIso8601String()}',
'File last modified: ${file.lastModifiedSync().toIso8601String()}',
];
}