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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 setDefaultThread(self, thread_id, thread_type):
 """ Sets default thread to send messages to :param thread_id: User/Group ID to default to. See :ref:`intro_threads` :param thread_type: See :ref:`intro_threads` :type thread_type: models.ThreadType """

        self._default_thread_id = thread_id
        self._default_thread_type = thread_type