code: def _recv(sock, n):
      return sock.recv(n).decode("ascii")
  
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 10 for calling a global function with example usage: _recv(sock, n) and returns: sock