code: def grouper(iterable, n, fillvalue=None):
      """Collect data into fixed-length chunks or blocks"""
      # grouper('ABCDEFG', 3, 'x') --> ABC DEF Gxx
      args = [iter(iterable)] * n
      return itertools.zip_longest(*args, fillvalue=fillvalue)
  
imports: import argparse
  import os
  import sys
  import inspect
  import logging
  import warnings
  import functools
  import uuid
  from types import ModuleType
  from typing import Optional
  import numpy
  import hashlib
  import requests
  import itertools
  import random
  from .lazy_imports import try_import_boto3
  from mxnet.gluon.utils import replace_file
  import glob
label_desc: Use image node_id 10 for calling a global function with example usage: grouper(iterable, n, fillvalue) and returns: itertools