code: def parse_raw_str(v):
      try:
          v = v.decode("utf-8")
      except:
          try:
              v = v.decode("latin1")
          except:
              pass
      return v
  
imports: from collections import defaultdict
  import csv
  from datetime import datetime
  import json
  from math import radians, cos, sin, asin, sqrt
  import urllib2
  import numpy
label_desc: Use image node_id 4 for calling a global function with example usage: parse_raw_str(v) and returns: v