code: def _makeJobGraphs(self, jobGraph, jobStore):
          
          jobsToJobGraphs = {self:jobGraph}
          for successors in (self._followOns, self._children):
              jobs = [successor._makeJobGraphs2(jobStore, jobsToJobGraphs) for successor in successors]
              jobGraph.stack.append(jobs)
          return jobsToJobGraphs
docs: Creates a jobGraph for each job in the job graph, recursively.