class_docstr: A Worker manager for synthetic functions. Mostly to be used in simulations. 
docstr: Sorts worker pipe by finish time. 
docstr_tok: ["Sorts","worker","pipe","by","finish","time","."]
code: def sort_worker_pipe(self):
      """Sorts worker pipe by finish time."""
      self.worker_pipe.sort(key=lambda x: x[-1])
  
imports: from __future__ import print_function
  from __future__ import division
  from argparse import Namespace
  from multiprocessing import Process
  import numpy
  import os
  import pickle
  import shutil
  import time
  from .exd_utils import EVAL_ERROR_CODE
label_desc: Use image node_id 4 for calling the SyntheticWorkerManager obj's underlying member method code with example usage: obj.sort_worker_pipe() without return types