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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 _next_job(self):
 """execute the next job from the top of the queue"""

        if self.__job_queue:
            # Produce message from the top of the queue
            job = self.__job_queue.pop()
            # logging.debug("queue = %s, popped %r", self.__job_queue, job)
            job.process()