anchor.diff:        actualFamily = family;
       }
   
  -    return _RegisteredFont(bytes, family, actualFamily!);
  +    return _RegisteredFont(bytes, family, actualFamily);
     }
   
     String? _readActualFamilyName(Uint8List bytes) {
  
positive.code:     if (_unloadedFonts.isEmpty) {
        return;
      }
  
      final List<_RegisteredFont?> loadedFonts =
          await Future.wait(_unloadedFonts);
      _registeredFonts.addAll(loadedFonts.where((x) => x != null));
      _unloadedFonts.clear();
    }
  
  
negative.code:       <Future<_RegisteredFont>>[];
  
    /// Fonts which have been registered and loaded.
    final List<_RegisteredFont> _registeredFonts = <_RegisteredFont>[];
  
    final Set<String?> registeredFamilies = <String?>{};
  
  