anchor.diff:  import 'package:gltf/src/utils.dart';
   import 'package:isolate/load_balancer.dart';
   import 'package:isolate/isolate_runner.dart';
  -import 'package:path/path.dart' as path;
  +import 'package:path/path.dart' as p;
   import 'package:yaml/yaml.dart';
   
   const int kErrorCode = 1;
  
positive.code:     Context context, Uri absoluteUri, GltfReaderResult readerResult) {
    // Check file stat to not bother with FileSystem exceptions
    File fileGuarded(Uri uri) {
      final f = File.fromUri(absoluteUri.resolveUri(uri));
      if (f.statSync().type == FileSystemEntityType.file) {
        return f;
      } else {
  
negative.code: 
      final it = Directory(input).listSync(recursive: true).where((entry) {
        if (entry is File) {
          final ext = p.extension(entry.path);
          return (ext == '.gltf') || (ext == '.glb');
        }
        return false;
  