<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def getIssuedBatchJobIDs(self):
 """ Gets the list of jobs issued to parasol in all results files, but not including jobs created by other users. """

        issuedJobs = set()
        for resultsFile in itervalues(self.resultsFiles):
            issuedJobs.update(self.getJobIDsForResultsFile(resultsFile))

        return list(issuedJobs)