code: def forward_cpu(self, inputs):
      return self._forward(numpy, inputs)
  
file_path: chainer/chainer/functions/evaluation/accuracy.py
imports: import numpy
  import six
  from chainer.backends import cuda
  from chainer import function_node
  from chainer.utils import type_check
  import chainerx
label_desc: Use image node_id 4 for calling the Accuracy obj's underlying member method code with example usage: obj.forward_cpu(inputs) and returns: self