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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 wait_for_job(self):
 """ Use a redis blocking list call to wait for a job, and return it. """

        blpop_result = self.connection.blpop(self.keys, self.timeout)
        if blpop_result is None:
            return None
        queue_redis_key, job_ident = blpop_result
        self.set_status('running')
        return self.get_queue(queue_redis_key), self.get_job(job_ident)