code: def _cache(f):
      cache = dict()
  
      def wrapper(*args, **kwargs):
          key = (args, frozenset(kwargs.items()))
  
          if key in cache:
              return cache[key]
          else:
              retval = f(*args, **kwargs)
              cache[key] = retval
              return retval
  
      return wrapper
  
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 6 for calling a global function with example usage: _cache(f) and returns: wrapper, cache, retval