code: def read32(bytestream):
      """Read 4 bytes from bytestream as an unsigned 32-bit integer."""
      dt = np.dtype(np.uint32).newbyteorder(">")
      return np.frombuffer(bytestream.read(4), dtype=dt)[0]
  
file_path: mesh/examples/mnist_dataset.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import gzip
  import os
  import shutil
  import tempfile
  import numpy
  from six.moves import urllib
  import tensorflow.compat.v1
label_desc: Use image node_id 1 for calling a global function with example usage: read32(bytestream) and returns: np