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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 CheckCronJobAccess(self, username, cron_job_id):
 """Checks whether a given user can access given cron job."""


    self._CheckAccess(
        username, str(cron_job_id),
        rdf_objects.ApprovalRequest.ApprovalType.APPROVAL_TYPE_CRON_JOB)