code: def is_iterable(x):
      try:
          _ = iter(x)
      except TypeError:
          return False
      return True
  
imports: import json
  import multiprocessing
  import os
  import sys
  import sysconfig
  import warnings
  from contextlib import contextmanager
  from horovod.common.exceptions import get_version_mismatch_message, HorovodVersionMismatchError
label_desc: Use image node_id 18 for calling a global function with example usage: is_iterable(x) and returns: True, False