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

    final XPath2SequenceType that = (XPath2SequenceType)o;

    if (!myType.equals(that.myType)) return false;

    return true;
  }
@Override
  public boolean equals(Object o)