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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 _prepare_wsdl_objects(self):
 """ Preps the WSDL data structures for the user. """


        self.DeletionControlType = self.client.factory.create('DeletionControlType')
        self.TrackingId = self.client.factory.create('TrackingId')
        self.TrackingId.TrackingIdType = self.client.factory.create('TrackingIdType')