def save(self, data, xparent=None):
        """
        Parses the element from XML to Python.
        
        :param      data    | <variant>
                    xparent | <xml.etree.ElementTree.Element> || None
        
        :return     <xml.etree.ElementTree.Element>
        """
        if xparent is not None:
            elem = ElementTree.SubElement(xparent, 'bool')
        else:
            elem = ElementTree.Element('bool')

        elem.text = nstr(data)
        return elem
Parses the element from XML to Python.
        
        :param      data    | <variant>
                    xparent | <xml.etree.ElementTree.Element> || None
        
        :return     <xml.etree.ElementTree.Element>