code: def u32(x):
      return x & 0xFFFFFFFF
  
imports: from collections import defaultdict
  import os
  import re
  import socket
  import struct
  import time
  import numpy
  import six
  import scipy.misc
  from .crc32c import crc32c
label_desc: Use image node_id 2 for calling a global function with example usage: u32(x) and returns: unknown