code: def clear_memo():
      """Clears the memoized results for all functions decorated by memoize.
  
      This function works like :func:`cupy.clear_memo` as a counterpart for
      :func:`chainer.backends.cuda.memoize`. It can be used even if CUDA is
      not available. In such a case, this function does nothing.
  
      """
      if available:
          cupy.clear_memo()
  
imports: import binascii
  import functools
  import itertools
  import os
  import threading
  import time
  import typing
  import warnings
  import numpy
  import six
  import chainer
  from chainer import _backend
  from chainer.backends import _cpu
  from chainer.backends import intel64
  from chainer.configuration import config
  from chainer import types
  import chainerx
label_desc: Use image node_id 13 for calling a global function with example usage: clear_memo() without return types