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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 new_correspondence(self, queue=None):
 """ Obtains tickets changed by other users than the system one. :keyword queue: Queue where to search :returns: List of tickets which were last updated by other user than the system one ordered in decreasing order by LastUpdated. Each ticket is dictionary, the same as in :py:meth:`~Rt.get_ticket`. """

        return self.search(Queue=queue, order='-LastUpdated', LastUpdatedBy__notexact=self.default_login)