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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 get_aggregate(self):
 """ Get aggregate data. Returns: A dict in with queries as keys and results as values. """

        return dict([(aggregate.find('query').text, [(ET.tostring(data).lstrip('<data xmlns:cps="www.clusterpoint.com" xmlns:cpse="www.clusterpoint.com">').strip().rstrip("</data>")) for data in aggregate.findall('data')])
                   for aggregate in self._content.findall('aggregate')])