code: def get_child_jobs(self):
          
          # Lazily load info
          if self.info is None:
              self.get_info()
  
          # Lazily load children
          if self.children is not None:
              return self.children
          else:
              if 'children' in self.info:
                  child_list = []
                  for child in self.info['children']['items']:
                      child_job = GPJob(self.server_data, child['jobId'])
                      child_job.info = child
                      child_job.load_info()
                      child_list.append(child_job)
                  return child_list
              else:               # No children? Return empty list
                  return []
docs: Queries the GenePattern server for child jobs of this job, creates GPJob
          objects representing each of them and assigns the list of them to the
          GPJob.children property. Then return this list.