def addFollowOn(self, followOnJob):
        self._followOns.append(followOnJob)
        followOnJob._addPredecessor(self)
        return followOnJob
Adds a follow-on job, follow-on jobs will be run after the child jobs and         their successors have been run. 
dataset/ETHPy150Open BD2KGenomics/toil/src/toil/job.py/Job.addFollowOn