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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _xml_to_dict(self, element):
 """ Take an XML element, iterate over it and build a dict :param element: An xml.etree.ElementTree.Element, or a list of the same :returns: A dictionary """

        return_dict = {}
        for el in element:
            return_dict[el.tag] = None
            children = el.getchildren()
            if children:
                return_dict[el.tag] = self._xml_to_dict(children)
            else:
                return_dict[el.tag] = el.text
        return return_dict