code: def __call__(self, key, value):
      if key not in self.patches:
          return self.base(key, value)
      arr = self.base(key, None)
      arr = self.patches[key](arr)
      if value is None:
          return arr
      chainer.backend.copyto(value, arr)
      return value
  
imports: import functools
  import warnings
  import numpy
  import chainer
  from chainer import configuration
  from chainer import functions
  from chainer import link
  import chainer.serializer
  from chainer.utils import argument
label_desc: Use image node_id 3 for calling the _PatchedDeserializer obj's underlying member method code with example usage: obj.__call__(key, value) and returns: value, self, arr