public Self withSubTags(@NotNull final ElementPattern<? extends Collection<XmlTag>> pattern) {
    return with(new PatternCondition<>("withSubTags") {
      @Override
      public boolean accepts(@NotNull final XmlTag xmlTag, final ProcessingContext context) {
        return pattern.accepts(Arrays.asList(xmlTag.getSubTags()), context);
      }
    });
  }
public Self withSubTags(@NotNull final ElementPattern<? extends Collection<XmlTag>> pattern)