@Override
    public boolean equals(Object o) {
      if (this == o) return true;
      if (o == null || getClass() != o.getClass()) return false;

      Element element = (Element)o;
      return Objects.equals(myTagName, element.myTagName) &&
             Objects.equals(myAttributes, element.myAttributes) &&
             Objects.equals(myChildren, element.myChildren);
    }
@Override
    public boolean equals(Object o)