anchor.diff:  import 'package:tekartik_fs_node/src/file_system_entity_node.dart';
   import 'package:tekartik_fs_node/src/fs_node.dart';
   import 'package:tekartik_fs_node/src/import_common.dart';
  +
  +import 'package:fs_shim/src/common/compat.dart'; // ignore: implementation_imports
   
   import 'import_common_node.dart' as io;
   
  
positive.code:   @override
    Stream<Uint8List> openRead([int start, int end]) {
      // Node is end inclusive!
      return ReadFileStreamCtrlNode(
              ioFile.openRead(start, end != null ? end - 1 : null))
          .stream;
    }
  
  
negative.code:           .then(_me);
  
    @override
    Future<Uint8List> readAsBytes() async =>
        asUint8List(await ioWrap(ioFile.readAsBytes()));
  
    @override
    Future<String> readAsString({Encoding encoding = utf8}) =>
  