code: def print_log(s):
      t = time.ctime()
      print("[{}]{}".format(t, s))
  
file_path: singa/examples/gan/utils.py
imports: import gzip
  import matplotlib.pyplot
  import numpy
  import os
  import pickle
  import sys
  import time
label_desc: Use image node_id 1 for calling a global function with example usage: print_log(s) without return types