code: def xmlrpc_get_task(self):
          
          try:
              if len(self.reschedule) == 0:
                  (task_id, cur_task) = next(self.task_iterator)
              else:
                  (task_id, cur_task) = self.reschedule.pop()
              self.scheduled_tasks.update({task_id: cur_task})
              return (task_id, cur_task.to_dict())
          except StopIteration:
              print('StopIteration: No more tasks')
              return False
          except Exception as err:
              print('Some other error')
              print(err)
              return False
docs: Return a new task description: ID and necessary parameters, 
          all are given in a dictionary