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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 _normalize_xml_search_response(self, xml):
 """ Normalizes an XML search response so that PB and HTTP have the same return value """

        target = XMLSearchResult()
        parser = ElementTree.XMLParser(target=target)
        parser.feed(xml)
        return parser.close()