public static @Nullable Object nextAny(JsonReaderEx reader)  {
    return switch (reader.peek()) {
      case BEGIN_ARRAY -> nextList(reader);
      case BEGIN_OBJECT -> nextObject(reader);
      case STRING -> reader.nextString();
      case NUMBER -> reader.nextDouble();
      case BOOLEAN -> reader.nextBoolean();
      case NULL -> {
        reader.nextNull();
        yield null;
      }
      default -> throw new IllegalStateException();
    };
  }
public static @Nullable Object nextAny(JsonReaderEx reader)