code: def task_sort():
      """list sorting (C)"""
  
      def list_sort(l):
          l = l[::-1]
          l.sort()
  
      return list_sort, (list(range(1000)),)
  
imports: from __future__ import division
  from __future__ import print_function
  import time
  import os
  import sys
  import itertools
  import threading
  import subprocess
  import socket
  from optparse import OptionParser, SUPPRESS_HELP
  import platform
label_desc: Use image node_id 3 for calling a global function with example usage: task_sort() and returns: list_sort,  list