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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 _startServiceJobs(self):
 """Start any service jobs available from the service manager"""

        self.issueQueingServiceJobs()
        while True:
            serviceJob = self.serviceManager.getServiceJobsToStart(0)
            # Stop trying to get jobs when function returns None
            if serviceJob is None:
                break
            logger.debug('Launching service job: %s', serviceJob)
            self.issueServiceJob(serviceJob)