readRange method
Reads the bytes of path in the half-open range [start, end).
Never throws: failures come back as Err. An end past EOF reads to
EOF; a start at or past EOF yields an empty list.
Implementation
@override
Future<Result<Uint8List, FileError>> readRange(
String path,
int start,
int end,
) => _fs.readRange(path, start, end);