if predCount < 2 {
		return errXMLNotWellFormed
	}

	if a.ContainsDuplicateTag() {
		return errDuplicateTagKey
	}
	for _, t := range a.Tags {
		if err := t.Validate(); err != nil {
			return err
		}
	}

	if a.ObjectSizeGreaterThan < 0 || a.ObjectSizeLessThan < 0 {
		return errXMLNotWellFormed
	}
	return nil
}

// ContainsDuplicateTag - returns true if duplicate keys are present in And